Second time for Secondchance

[secondchance]

Most of you may remember that I had a head gasket failure in April 2013 resulting in 380 mini-stroker build which was completed in June 2014.
Since March 2015 I have been losing coolant again despite multiple attempts at isolating the problem and attempted fixes problem progressively got worse. My drive up to Carlisle resulted in having to have the car trailered back to VA - Thanks, Mark and Dennis!!!

Last Saturday I had my car towed to Dempsey's in Clinton, MD. and pulled the motor with Dempsey, Rich and Charlie.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0829_zpsrmq5ccuh.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0829_zpsrmq5ccuh.jpg.html)
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0830_zpsuffyijen.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0830_zpsuffyijen.jpg.html)

Started around 9 am and we had the motor out by 3:28. That is with a sit-down lunch of barbequed ribs and chicken and joy rides for Brett - We are getting scary good at this!
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0841_zpsmh372ntn.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0841_zpsmh372ntn.jpg.html)

We had a special guest, Brett. To make the long story short, Dempsey found out about Brett, an autistic teenager who loves Corvettes, and invited Brett and his parents over to watch what we were doing and joy rides of Brett's choice. I must say, this must have been a very special day for Brett - Dempsey, thanks for having had an opportunity to be a part of Brett's special day!
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0836_zpsnwiozt6x.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0836_zpsnwiozt6x.jpg.html)

Private Corvette show for Brett!
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0833_zpsfj2gx2el.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0833_zpsfj2gx2el.jpg.html)

Yesterday, Dempsey disassembled the top end. It seems inboard head bolts may have been under torqued resulting in head gasket around #5 cylinder breaking up. I will be taking the heads with gaskets attached to the machine shop that had assembled the short block, discuss what we see and hopefully figure out exactly how and why it had failed.

Once I have both heads shaved we will be re-assembling the motor and drop in the car. I will certainly keep you all posted.

[GOLDCYLON]

May I suggest using the Cometic MLS head headgasket upgrade that Marc Haibeck sells? This is basically LS-1 Technology using an all steel "Reuseable gasket"

Ive been running mine in my 380 for years now with Zero issues. Since your there I strongly suggest and I highly recommend it. GC


http://www.zr1specialist.com/HAT%20Web/products/mls%20head%20gasket.htm

[secondchance]

May I suggest using the Cometic MLS head headgasket upgrade that Mark Haibeck sells? This is basically LS-1 Technogly using an all steel "Reuseable gasket"

Ive been running mine in my 380 for years now with Zero issues. Since your there I strongly suggest and I highly recommend it. GC


http://www.zr1specialist.com/HAT%20Web/products/mls%20head%20gasket.htm

For sure! I talked to Marc during the Carlisle event. I will be getting a set very soon.

[GOLDCYLON]

For sure! I talked to Marc during the Carlisle event. I will be getting a set very soon.


Phil (PhllipsLT5) is also using these gaskets after he lost his head gaskets years ago after Marc did a lot of work on the car.

These days its the best way forward. GC

[PhillipsLT5]

I was a test mule for Marc and years later in HOT AZ, lots of 1/4, 1/2, 1 & 1.5 mile runs, no leaks, only way to go

[rkreigh]

good luck! sounds like you found the root cause and are well on the way to the fix.

I admire the determination and for sure the wazoo guys are unique in their talents.

we are pretty lucky to have this segment of the brotherhood.

as I look at the LS guys the LS9 hg is getting slung on anything regardless of bore (sheesh)

my next build I'd love to try the AES liners, maybe we can talk Phil into it, he seems to want more for that big stroker before he even gets the rings seated :confused:

the LT5 stroker is just way too much fun.

[secondchance]

good luck! sounds like you found the root cause and are well on the way to the fix.

I admire the determination and for sure the wazoo guys are unique in their talents.

we are pretty lucky to have this segment of the brotherhood.

as I look at the LS guys the LS9 hg is getting slung on anything regardless of bore (sheesh)

my next build I'd love to try the AES liners, maybe we can talk Phil into it, he seems to want more for that big stroker before he even gets the rings seated :confused:

the LT5 stroker is just way too much fun.

Absolutely Ron. We have some of the best talents locally. Also, WAZOO gang are always so helpful and happy to pitch in. Had it not been for the WAZOO gang, I would have given up my Z a long time ago. Just wouldn't have been able to afford necessary refurbishing let alone all mods.:cheers:

[dredgeguy]

Absolutely Ron. We have some of the best talents locally. Also, WAZOO gang are always so helpful and happy to pitch in. Had it not been for the WAZOO gang, I would have given up my Z a long time ago. Just wouldn't have been able to afford necessary refurbishing let alone all mods.:cheers:

That my man is the TRUTH! Cannot imagine having to take the Z to the local GM dealer..................

[LGAFF]

"We had a special guest, Brett. To make the long story short, Dempsey found out about Brett, an autistic teenager who loves Corvettes, and invited Brett and his parents over to watch what we were doing and joy rides of Brett's choice. I must say, this must have been a very special day for Brett - Dempsey, thanks for having had an opportunity to be a part of Brett's special day!"

This is pretty cool, my daughter has autism, and something like this means alot....very nice of you guys to do this!

[nelson007]

Charlie,
What are those blue things on your hands?
Nelson

[dredgeguy]

The new fashion imported from Cairo....

[Gunny]

Charlie's moonlighting as a proctologist :wink:

[dredgeguy]

Charlie's moonlighting as a proctologist :wink:

Line up boys, volume discounts available. Small hands and fingers are a bonus:-D

[secondchance]

"
This is pretty cool, my daughter has autism, and something like this means alot....very nice of you guys to do this!

All credit goes to Dempsey. I thought it was very thoughtful of him to invite Brett.

[secondchance]

Upon head removal, head gasket failure was confirmed. I couldn't make Sunday but according to Dempsey inboard head bolts didn't take much force to unbolt. So, it seems quite feasible that failure may have been due to improper torque when the short block was assembled at the machine shop. Another possibility raised was detonation in #5 and #2 cylinder.
Heads are being shaved and cleaned and we will be making sure that all liners are level and have correct projection above the deck.
http://i658.photobucket.com/albums/uu303/byongyun/cyl%205-2_zpsvtg8k2ax.jpg (http://s658.photobucket.com/user/byongyun/media/cyl%205-2_zpsvtg8k2ax.jpg.html)

Another concern I had was very low oil pressure after the rebuild/install last year. I had about 10 psi at idle when the coolant reached 200 degrees. Well, guess what showed up in the oil pan?! - crankshaft oil plug!
http://i658.photobucket.com/albums/uu303/byongyun/20150922_080132_zpsmifsa4pv.jpeg (http://s658.photobucket.com/user/byongyun/media/20150922_080132_zpsmifsa4pv.jpeg.html)

In a way, head gasket failure was a blessing in disguise - forced me to pull the motor and resolve not only blown head gasket but also low oil pressure concern.

For those planning on off-set grind mini stroker crankshaft, make sure to instruct the machine shop to install plugs after the heat treatment. Rich (Scrrem) had the same issue.

[GOLDCYLON]

Upon head removal, head gasket failure was confirmed. I couldn't make Sunday but according to Dempsey inboard head bolts didn't take much force to unbolt. So, it seems quite feasible that failure may have been due to improper torque when the short block was assembled at the machine shop. Another possibility raised was detonation in #5 and #2 cylinder.
Heads are being shaved and cleaned and we will be making sure that all liners are level and have correct projection above the deck.
http://i658.photobucket.com/albums/uu303/byongyun/cyl%205-2_zpsvtg8k2ax.jpg (http://s658.photobucket.com/user/byongyun/media/cyl%205-2_zpsvtg8k2ax.jpg.html)

Another concern I had was very low oil pressure after the rebuild/install last year. I had about 10 psi at idle when the coolant reached 200 degrees. Well, guess what showed up in the oil pan?! - crankshaft oil plug!
http://i658.photobucket.com/albums/uu303/byongyun/20150922_080132_zpsmifsa4pv.jpeg (http://s658.photobucket.com/user/byongyun/media/20150922_080132_zpsmifsa4pv.jpeg.html)

In a way, head gasket failure was a blessing in disguise - forced me to pull the motor and resolve not only blown head gasket but also low oil pressure concern.

For those planning on off-set grind mini stroker crankshaft, make sure to instruct the machine shop to install plugs after the heat treatment. Rich (Scrrem) had the same issue.


Actually this is the Third time this happened. My 380 was the first 380 install and the first to crap the crank plug in 2012. I highly suggest welding the expansion style crank plugs in. Thats the only way I would recommend to move forward. My tale of woe is below. Now that the pan is removed make sure the bottom side of the pistons are not damaged as well from the plug beating around in there. GC


http://www.zr1.net/forum/showthread.php?t=17224&highlight=crank+plug

[LGAFF]

Can we get a ZR-1 Registry tshirt for Bill?

[secondchance]

Can we get a ZR-1 Registry tshirt for Bill?

That's a great idea. I'll go half with you.
I'll talk to Mark H. and work it out.

[dredgeguy]

All credit goes to Dempsey. I thought it was very thoughtful of him to invite Brett.

Brett and his Mom came to our local cars and coffee last Sunday and they enjoyed seeing all the cars including Matt's and my Z. Think we have a fan for life:-D

[secondchance]

Brett and his Mom came to our local cars and coffee last Sunday and they enjoyed seeing all the cars including Matt's and my Z. Think we have a fan for life:-D

An honorary WAZOO member!

[jmglyder]

Hey Guys! Nice of you to include Brett in all the happenings. Let me know what size he is and I will order him a t-shirt since he is now an honorary member.

[secondchance]

9/26/2015 update:

All pistons were removed followed by separation of upper and lower block to examine main bearings since I put on about 10,000 miles with relatively low oil pressure resulting from one of the crankshaft plug being popped out.

http://i658.photobucket.com/albums/uu303/byongyun/IMG_0861_zpsrudnzfbx.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0861_zpsrudnzfbx.jpg.html)

We couldn't remove the oil pump due to lack of proper tool to remove the sprocket off the crankshaft. This will be done later this week with a tool on loan from Phil.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0864_zps12ywguyh.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0864_zps12ywguyh.jpg.html)

All rod bearings and upper mains looked good pending Phil's inspection. I have a set of brand new ones on stand-by just in case.

Since the engine bay was empty with all nooks and cranny readily accessible, I could not resist some cleaning and touch up with a rattle can.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0868_zpsbto7pair.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0868_zpsbto7pair.jpg.html)

To be continued...

[RICKYRJ1]

class act all of them!!! Good Luck and great job WAZOO :proud:

[GOLDCYLON]

Since the engine bay was empty with all nooks and cranny readily accessible, I could not resist some cleaning and touch up with a rattle can.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0868_zpsbto7pair.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0868_zpsbto7pair.jpg.html)

To be continued...

Like you I always look for other opportunities to do other things while you are there. Taking care of the engine bay is just plain smart. I also recommend you weld in those plugs vs. using the factory expansion seal method only. With the offset method on the crank to build a mini stroker it puts more stress on the motor beyond what GM intended. This is also the reason I had to increase cooling and braking. bigger HP has bigger challenges. I too was so frustrated when I lost my crank plug. All I can tell you is thanks for documenting and sharing and that the light is at the end of the tunnel. GC

[secondchance]

I also recommend you weld in those plugs vs. using the factory expansion seal method only. With the offset method on the crank to build a mini stroker it puts more stress on the motor beyond what GM intended. This is also the reason I had to increase cooling and braking. bigger HP has bigger challenges. I too was so frustrated when I lost my crank plug. All I can tell you is thanks for documenting and sharing and that the light is at the end of the tunnel. GC

This is such a fanatical and enthusiastic group I had to share all my trials and tribulations.

I will be sure to address the crank plug issue with Phil and Dempsey. We are meeting at Dempsey's house where my car and motor is at this afternoon to check liner heights, remove the sprocket from the crankshaft, etc... Amount of time and energy made available by the WAZOO guys for the first and the second build has been incredible.

As for ancillary upgrades;

Cooling system.
http://i658.photobucket.com/albums/uu303/byongyun/Radiator%201_zpscygustdc.jpg (http://s658.photobucket.com/user/byongyun/media/Radiator%201_zpscygustdc.jpg.html)
Check!

Brakes.
http://i658.photobucket.com/albums/uu303/byongyun/image_zps5f5e9c16.jpg (http://s658.photobucket.com/user/byongyun/media/image_zps5f5e9c16.jpg.html)
http://i658.photobucket.com/albums/uu303/byongyun/2013-06-09145051_zpsa228826c.jpg (http://s658.photobucket.com/user/byongyun/media/2013-06-09145051_zpsa228826c.jpg.html)
Check!

Once the LT5 roars back to life, I should be good to go!

[secondchance]

9/30/2015 update:

Got together with Phil at Dempsey's. Removed sprocket and oil pump, removed all plugs from the crankshaft. Once plugs were removed ran telescoping magnet through the oil galley and surprised to find steel shavings coming out attached to the magnet. Judging by the shape these finger nail clipping sized pieces looked to be remnants from oil galley drilling and thread tapping operation during the manufacturing of the crankshaft.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0869_zpsuxdunmpe.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0869_zpsuxdunmpe.jpg.html)

Also, Phil showed us how to check the top of the deck to liner dimension with his home made gauge.
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0870_zpsejwb0s2q.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0870_zpsejwb0s2q.jpg.html)

I tried to take a short cut and Phil would not have any of that. So, per Phil and Dempsey's urging, the block and the crankshaft is in my BMW trunk to be dropped off at Springfield Custom Machine for a hot bath and #5 liner to be touched up with "digleberry honing".

Once cleaned, we will be installing all new bearings.

This is turning out to be a total rebuild...

[GOLDCYLON]

Stay the course and get it done right. Mine was full of shavings as well in the crank as were the cams..... I guess it was figured while they were plugged what was the harm. Now like a mother hen clucking get those darn expansion style crank plugs welded. If not for piece of mind. Don't trust the expansion method only

[GOLDCYLON]

This is such a fanatical and enthusiastic group I had to share all my trials and tribulations.

I will be sure to address the crank plug issue with Phil and Dempsey. We are meeting at Dempsey's house where my car and motor is at this afternoon to check liner heights, remove the sprocket from the crankshaft, etc... Amount of time and energy made available by the WAZOO guys for the first and the second build has been incredible.

As for ancillary upgrades;

Cooling system.
http://i658.photobucket.com/albums/uu303/byongyun/Radiator%201_zpscygustdc.jpg (http://s658.photobucket.com/user/byongyun/media/Radiator%201_zpscygustdc.jpg.html)
Check!

Brakes.
http://i658.photobucket.com/albums/uu303/byongyun/image_zps5f5e9c16.jpg (http://s658.photobucket.com/user/byongyun/media/image_zps5f5e9c16.jpg.html)
http://i658.photobucket.com/albums/uu303/byongyun/2013-06-09145051_zpsa228826c.jpg (http://s658.photobucket.com/user/byongyun/media/2013-06-09145051_zpsa228826c.jpg.html)
Check!

Once the LT5 roars back to life, I should be good to go!

I have the same front setup. Can you provide me details on the back set up ?

[secondchance]

I have the same front setup. Can you provide me details on the back set up ?

Daryl,

Rear set up is from Revolution Brake LLC.
http://store.revolutionbrake.com/14-0106.html

It required some massaging to make it work including parking brake cable bracket under the car being cut/welded by 3/4" and having to shave outboard brake pad by 3/16" and adding 3/16" thick aluminum piece to shim inboard pad. Otherwise, this was the simplest parking brake solution I found and it works!

[-=Jeff=-]

Daryl,

I looked at that setup too..

YUN,

for the price I would not have expected to mod parts like you did.. the Street Shop drum hubs Dominic bought also need to be modded (but not nearly as much)

[secondchance]

YUN,

for the price I would not have expected to mod parts like you did.. the Street Shop drum hubs Dominic bought also need to be modded (but not nearly as much)

Oh, a little bit of yungineering is always fun...

[Demps]

Y'all would cost me a fortune if I lived there.

Nice work fellas. Yun, sorry for the troubles but looks like a good thing is coming together.

Ted

[secondchance]

Y'all would cost me a fortune if I lived there.

Nice work fellas. Yun, sorry for the troubles but looks like a good thing is coming together.

Ted

Coming from a guy with... How many was it? 5? 6 ZR-1s?:mrgreen:

[GOLDCYLON]

Coming from a guy with... How many was it? 5? 6 ZR-1s?:mrgreen:


:-D good point ;)

[-=Jeff=-]

Oh, a little bit of yungineering is always fun...

Oh I am all for the engineering of it, but when laying out that kind of money for a kit made for our cars, I would expect it to work, not need mods to to make it work.

That said I understand you may need to change/mod the car for the parts, but not mod the kit.

[secondchance]

Oh I am all for the engineering of it, but when laying out that kind of money for a kit made for our cars, I would expect it to work, not need mods to to make it work.

That said I understand you may need to change/mod the car for the parts, but not mod the kit.

In the absence of perfectly engineered kit, best I could do was to find a kit that can be made to work. I thought about putting a kit together based on what I had to figure out but I concluded not too many would be interested. Insufficient number of people interested in high performance brakes (as opposed to going faster) is what makes kits such as this one expensive and not even totally sorted out.
All said and done, this was cheaper and less of a headache compared to fabricating one from the scratch.

[secondchance]

10/3/2015 update:

Another rainy day but perfect for short block assembly. Ran over to Dempsey's and started with crankshaft plug installation.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/3e108bbb-b475-4076-b218-f9e3e70e8742_zpshtdyuvko.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/3e108bbb-b475-4076-b218-f9e3e70e8742_zpshtdyuvko.jpg.html)
Lower thrust bearing had chipped so replaced all main bearings with a new set from Jerry's Gasket.

Crankshaft in the upper block ready to receive the lower block.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zps9xfsy7vl.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zps9xfsy7vl.jpg.html)

Dempsey bolting on main bearing cap bolts. Despite hot tanking exhaust leak stain still needs to be cleaned.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zpsxfskzgua.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zpsxfskzgua.jpg.html)

Number 1 & 2 pistons installed - 6 more to go.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zps4tsm6zmx.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zps4tsm6zmx.jpg.html)

To be continued...

[HAWAIIZR-1]

Hey Yun,
Sorry to hear about the engine woes, but glad to hear it is getting sorted out. You guys have the best thing going with all those WAZOO guys. I can't even get to meet other Z members here in NorCal, let alone try to do any mods with anyone. I might have to pick your brain about brakes as that is on the list. I found out how much these cars are lacking in that area while at Laguna SECA; you're right...why try to go faster if you can't stop.

Take care and Aloha,
Craig

[secondchance]

Hey, Craig,

Totally agree. Mutual support here is phenomenal. Although it was disappointing to find out that I had second head gasket failure, being able to do this the second time is allowing me to incorporate what I have learned hopefully leading to a better result.
Call me or email me with any question regarding the brake upgrade.

[HAWAIIZR-1]

Hey, Craig,

Totally agree. Mutual support here is phenomenal. Although it was disappointing to find out that I had second head gasket failure, being able to do this the second time is allowing me to incorporate what I have learned hopefully leading to a better result.
Call me or email me with any question regarding the brake upgrade.

I can't think of a more appropriate handle than Secondchance. Always the bright side with learning involved with it. Great crew you folks have there and I'm so jealous. I definitely want to find some brakes that fit the factory A molds for sure, but I know it limits me. I'm thinking of selling or trading my Dymag Gen IIs, but I think the clearance is about the same as the A molds and have to measure to confirm. Thanks for the offer and take care. :cheers:

[secondchance]

I definitely want to find some brakes that fit the factory A molds for sure, but I .know it limits me. I'm thinking of selling or trading my Dymag Gen IIs, but I think the clearance is about the same as the A molds and have to measure to confirm. Thanks for the offer and take care. :cheers:

Front set up I have is available with 13" rotor meant to work with OEM A mold. Rear set up I have (12.8" rotor) fits inside 11" wide A mold.

[HAWAIIZR-1]

Front set up I have is available with 13" rotor meant to work with OEM A mold. Rear set up I have (12.8" rotor) fits inside 11" wide A mold.

Okay, great. Thanks Yun! I'll get with you and see what all the options are.

[GOLDCYLON]

Daryl,

Rear set up is from Revolution Brake LLC.
http://store.revolutionbrake.com/14-0106.html

It required some massaging to make it work including parking brake cable bracket under the car being cut/welded by 3/4" and having to shave outboard brake pad by 3/16" and adding 3/16" thick aluminum piece to shim inboard pad. Otherwise, this was the simplest parking brake solution I found and it works!


Thanks I will look into it and start saving now :-D

[HAWAIIZR-1]

Hey Yun,

I just got off the phone with Kevin from Revolution Brakes. After your issue in 2013 the brackets were corrected with the next order. The kits from Revolution Brakes are good to go now and direct bolt on with no modifications. Great news and I'm in! He said they can also powdercoat colors for those that don't want the Wilwood black for some bling.

Thanks again!

[GOLDCYLON]

Hey Yun,

I just got off the phone with Kevin from Revolution Brakes. After your issue in 2013 the brackets were corrected with the next order. The kits from Revolution Brakes are good to go now and direct bolt on with no modifications. Great news and I'm in! He said they can also powdercoat colors for those that don't want the Wilwood black for some bling.

Thanks again!

That is good news because I wanted the same red calipers as I have up front. Now to save my pennies

[secondchance]

Hey Yun,

I just got off the phone with Kevin from Revolution Brakes. After your issue in 2013 the brackets were corrected with the next order. The kits from Revolution Brakes are good to go now and direct bolt on with no modifications. Great news and I'm in! He said they can also powdercoat colors for those that don't want the Wilwood black for some bling.

Thanks again!

That's great! I'm glad to hear my feedback to Revolution Brakes actually made them improve the product.
Let me know if I can help as you move forward.

[HAWAIIZR-1]

That's great! I'm glad to hear my feedback to Revolution Brakes actually made them improve the product.
Let me know if I can help as you move forward.

Like GC, I have to save those pennies. Kevin sends his regards and wishes they could have fixed your issue; but he knew you are an Engineer. Like -=Jeff=- said, no mods should have to be done to a specific application kit. You are a pioneer. My problem is I think I might want to put stock wheels back on (for what reason, not sure other than to track?) so very limited and this is the best option I have seen so far. Thanks again! :saluting:

[secondchance]

October 10, 2015 update:

Phil joined us at Dempsey's and timed all 4 camshafts using degree wheel.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zpspq8ex04s.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zpspq8ex04s.jpg.html)

LT5 is almost ready to be dropped in the car.

Thanks guys!!!

[Demps]

Oh Magician Phil. I wish I had half of his talent and all of his tools. Looking good Yun!

Ted

[secondchance]

Oh Magician Phil. I wish I had half of his talent and all of his tools. Looking good Yun!

Ted

What he doesn't have, he will machine it himself.

[secondchance]

10/12/2015 update:

Motor finally going back in the car under Dempsey's watchful eyes.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zps3g39fnje.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zps3g39fnje.jpg.html)

7 hrs later transmission and exhaust installed.
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zpsvwmxonl7.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zpsvwmxonl7.jpg.html)

It was long day for sure. My whole body is aching from wrestling with 700 lbs of motor and 100 lbs transmission...

She'll be running come Saturday.

[HAWAIIZR-1]

Can't wait to hear the good news! Best wishes.

[LGAFF]

and please...lets get that damn thing on a dyno...no more excuses Yun!:cheers:

[secondchance]

10/17/2015 update:

Started with cleaning under the car. Took advantage of Dempsey's lift and Touched up areas I can't normally get to.
Finished installing injector housings, and with Dempsey joining me later, coils, plenum, etc...
http://i658.photobucket.com/albums/uu303/byongyun/Mobile%20Uploads/image_zpsubtbangd.jpg (http://s658.photobucket.com/user/byongyun/media/Mobile%20Uploads/image_zpsubtbangd.jpg.html)

Oil pressure is 45 psi at operating temp at idle and no strange noise from the motor.
On the way home car was missing most likely due to plug wires being plugged into wrong coil terminal. I was too tired and in a hurry.
Ordered new set of plug wires and spark plugs.
Can't believe I had to do this twice but it's done and behind me.
Great big thanks to Dempsey, Phil, Rich and all WAZOO gang for incredible help!

[HAWAIIZR-1]

Looks awesome Yun and glad to hear the good news. Like Lee said, can't wait to see the dyno results on a 380. On another note, thanks for the info on the Revolution Brakes and I should receive them next week or so.

[secondchance]

Looks awesome Yun and glad to hear the good news. Like Lee said, can't wait to see the dyno results on a 380. On another note, thanks for the info on the Revolution Brakes and I should receive them next week or so.

Thanks Craig. Once I sort out spark plugs and wires, I need to do some data acquisition and have Marc touch it up.
If you run into any snag with the brakes, call me.

[93 Vette]

Great news Yun!

Matt

[secondchance]

Finally installed new NGK iridium plugs and replaced spark plug wires. I had crossed #3 and #5 wires-explains why she was missing bad returning home from Dempsey's.
All's great now.

[HAWAIIZR-1]

Finally installed new NGK iridium plugs and replaced spark plug wires. I had crossed #3 and #5 wires-explains why she was missing bad returning home from Dempsey's.
All's great now.

Congratulations and great news Yun! :cheers: You reminded me I need to take a look at the plugs in this new to me 95.

[secondchance]

Thanks!
What next?

[LGAFF]

Dyno Test that thing!

[HAWAIIZR-1]

Thanks!
What next?

Good question for all. For me, just the bigger brakes and headers and I'm stopping........ha, ha. Seriously, I'm going to slow down on mods and concentrating to retirement savings.

[secondchance]

Dyno Test that thing!

After fully broken in.

[secondchance]

Drove into work today. Even with .425" intake cams, when running right, LT5 runs really smooth. I didn't go too crazy and kept it below 4000 rpm.

Check out that oil pressure!
http://i658.photobucket.com/albums/uu303/byongyun/IMG_0018_zpsxjhjpyud.jpg (http://s658.photobucket.com/user/byongyun/media/IMG_0018_zpsxjhjpyud.jpg.html)

When oil temp is at 197 the gauge says 38 psi. This reading is with Mobil 1, 10-30.

Probably this is no big deal to most. However, having endured not knowing why my pressure was like 12 psi at idle, and more importantly, wondering if the low pressure was damaging the motor for 8 months, this is a big deal for me.

[oricale]

Lookin good Yun!!!!!.....break it in right and bring it back to me to do the oil change and oil analysis !!!;)

[secondchance]

Lookin good Yun!!!!!.....break it in right and bring it back to me to do the oil change and oil analysis !!!;)

For sure! How about check for detonation per Marc's procedure using Tech 1 and some data acquisition every 1000 rpm so that I can turn to Marc to touch up my PROM?

[rkreigh]

I think it would also be cool to run some traces with EASE and send them off to Marc if you are going to do a chip reburn

I have it on an old laptop if you'd like to give that a try

I would before you dyno it and even get a wide band 02 installed to see what WOT AF ratio is doing for you. they are cheap!!

we should do a wazzooo tune on this bad boy.

If we pool our $$ we can afford the gear and then learn together some tweaking

fun winter project!!!

congrats on getting the "black beast from the east" back on the road and help usher in the era of a low $$ LT5 builds!! the 380 is a fantastic combo using the affordable offset stock crank and I think with solid intake and injector housing porting this combo will see over 500 at the tire which is a really good goal.

LPE LSV 36k (includes brakes and B&B, headers ect...) - 508 hp

Secondchance stroker lop a HUGE chunk off that price tag. - 500+ HP

I love my LSV but I sure wouldn't want to pay for it that build!!! (thanks Larry RIP)

I'm very impressed with what the Wazzooo boys have done

along the lines of poor mans power (pardon the hi jack)

I'll send some pics of my lastest "poor mans toy"

a TT 4.8 LS iron block with forged wiseco pistons, gen IV stock floating pin rods, stock crank, head studs, twin t04 turbos, 127 lb injectors, haltech ECM target is 1k hp at the tire without twisting it up over 6500

ok, r u sitting down short block cost ($1230 at lloyds) bought a used engine for $2300 with the turbos & stuff and freshened it up (had a bent rod and piston skirt issue). guy was nice enough to give me another 4.8 too!! I'll be building that one next for a bit more lunati forged 4.0 crank, rods, and wiseco pistons with AFR 225 heads to update the Z06 TTix TT (800 at the tire will only scare you for so long, need another 200, it's chasing the dragon I know but I like dragon rides :)

very happy with the results and cost. I hope to put this beast in a 68 vert vette as the current 350 is a bit below my clearly jaded standards (anything less than 400 at the tire feels slow now :<)

boostamuv!! maybe we can do a Wazoo TT ZR-1 someday. if I can talk robert into welding up those stock manifolds, some nice ball bearing billet wheel turbos LPE style, and a megasquirt doing "secondary only control" I'd really also like to do a cross ram intake with two fuel rails, one for pump gas and then the megasquirt controlling a separate fuel system to bring on some big doggie 80 lbs injectors running meth.

also like to go coil on plug at the same time and the megasquirt can handle the ignition chores with just a crank trigger. I'll live without the fuel range estimates and the security system :> I think the raptor megasquirt thing may have died off but I might be able to talk Phil out of his prototype or at least get corey to do me another one :>

I hope to do this someday right after I sell both kidneys and an arm :o

[RussMcB]

The Megasquirt guys (www.diyautotune.com) are local (Suwanee, GA) and I hear they are very close to offering engine management computers for the LT-5. They told me recently they just need to test the last firmware version. As you say, it can control secondary butterflies/injectors, coil-on-plugs and more. That's pretty great news, not only for folks wanting to modify, but also considering the lack of GM computers available if one goes bad.

[-=Jeff=-]

The Megasquirt guys (www.diyautotune.com) are local (Suwanee, GA) and I hear they are very close to offering engine management computers for the LT-5. They told me recently they just need to test the last firmware version. As you say, it can control secondary butterflies/injectors, coil-on-plugs and more. That's pretty great news, not only for folks wanting to modify, but also considering the lack of GM computers available if one goes bad.

it is the $2000+ price that bugs me though.. if ti eliminated the ICM or had option to run something other than our ICM for $2000+ then that different

our ECMS can still be repaired for way less than the cost for the new ECM

[secondchance]

I think it would also be cool to run some traces with EASE and send them off to Marc if you are going to do a chip reburn

I have it on an old laptop if you'd like to give that a try

I would before you dyno it and even get a wide band 02 installed to see what WOT AF ratio is doing for you. they are cheap!!

we should do a wazzooo tune on this bad boy.

If we pool our $$ we can afford the gear and then learn together some tweaking
:o

Hey, Ron,

Now that #256 is running again, I'll be at Cars and Coffee this Saturday. We can talk about best option to record data and get it off to Marc.

Amount of money saved - no doubt! Holding and oiling pistons and sliding them into each sleeves - priceless!

[8cam]

it is the $2000+ price that bugs me though.. if ti eliminated the ICM or had option to run something other than our ICM for $2000+ then that different

our ECMS can still be repaired for way less than the cost for the new ECM

I had mine repaired and it was totally worth it...but the guy who did the repairs told me the ZR-1 ECMs come in two type - those that failed and those that are going to fail. He also said he has about a 2/3 success rate with repairs. So going with his logic, buy a "known good" ECM for $800 that will fail at some point, or roll the dice on a repair for under $400. You could easily be out $1200 trying to fix an ECM problem, and then STILL have a broken car. Megasquirt starts looking a lot better.

[GOLDCYLON]

it is the $2000+ price that bugs me though.. if ti eliminated the ICM or had option to run something other than our ICM for $2000+ then that different

our ECMS can still be repaired for way less than the cost for the new ECM

I agree with Jeff 2k is too harsh. It has more flexibility but the price point bugs me as well.

[rkreigh]

yes, we are paying for the R&D there as the LS megasquirt is 1200 or less with a plug and play harness.

the after market ECM capabilties that is opens up are pretty cool though.

the old ECM is the ZR-1 was a bit of a bastard child and very slow in processing power compared to the new stuff.

the MS without the wiring is only a few hundred bucks.

I'd like to try it JUST controlling the secondaries with a modified memcal and I think that would work pretty cool!

LPE did that on the TT cars very successfully with the aussie LINC stuff.

Graham, you out there!