The phoenix rising - Page 6 - ZR-1 Net Registry Forums

Paul Workman · 02-09-2011

Great news, Dom! Congratz on being able to rejoin the land of the living! That has been quite the Odyssey you just went thru - starting with surviving the crash in the first place!!

Nuttin' like getting back on the horse after "bein' throwed", not to mention adding another 40-50 hp to the rear wheels! The C6 wheels do look nice, but do us a favor and put fresh rubber on them this time.

P.

tomtom72 · 02-09-2011

Great news Dom! Another FBI Skunk Works project nearing completion has to make you smile.

XfireZ51 · 02-13-2011

The motor is done and Pete and Al were able to cobble the 2.5" Borla that came with the car enough so I could drive it home. Naturally it needs tuning but I won't do that until I get a proper exhaust on it. There are leaks and that will throw off the logging making the tune not trustworthy.
The 20" of snow doesn't help either. But driving it home Thursday, it felt strong and it took some getting used to but I could tell that even a slight touch to the accelerator brought on a response from the motor that was quicker than I have become used to. This will be an interesting case study of cam selection since Lgaff is building a similar motor but using a larger exhaust cam while I kept the stock exhaust with Pete's Stage II intake.
I'm of the opinion that the LT-5 already has plenty of exhaust capacity as is, at least for a stock block 350. Having heads with cleaned up exhaust ports and headers produces an exhaust that is even more efficient thereby making a increase in exhaust duration counterproductive both for driveability and power. That's my working hypothesis. I think it will also be easier to tune without the additional overlap. In fact, the motor idled "decent" at 800rpm with the tune I had in the previous motor which was just a top end port and headers. Don't get me wrong, it needs work but not a bad starting point. Anyway that's my opinion and we'll see how the numbers line up. Should be an interesting experiment.

Pete · 02-13-2011

Dom, i consider those cams Stage I's

Pete

XfireZ51 · 02-13-2011

Quote:

Originally Posted by Pete

Dom, i consider those cams Stage I's

Pete

Pete,

Sorry about the mis-representation. I was thinking Stage 1s were the single pattern cams using the stock secondary lobe for both.

XfireZ51 · 03-09-2011

While waiting for MF exhaust to be installed by Al, I got these too!

-=Jeff=- · 03-09-2011

you could have taken a couple pictures of the picked over Vette too.. LOL

XfireZ51 · 03-09-2011

Quote:

Originally Posted by -=Jeff=-

you could have taken a couple pictures of the picked over Vette too.. LOL

I see it every day. Don't need any more images. And you're welcome to come look at it any time you want.

Demps · 03-09-2011

Awesome Dominic! Guess I shouldn't mention it has been mid-60s here. Jealous on the mod'd motor.
Ted

RICKYRJ1 · 03-10-2011

Quote:

Originally Posted by XfireZ51

While waiting for MF exhaust to be installed by Al, I got these too!

Nice choice on the Invo's. I have heard nothing but positive reveiws on them. Did you go with 345's on the rear?

02-09-2011	#51
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: The phoenix rising Great news, Dom! Congratz on being able to rejoin the land of the living! That has been quite the Odyssey you just went thru - *starting with surviving the crash in the first place!!* Nuttin' like getting back on the horse after "bein' throwed", not to mention adding another 40-50 hp to the rear wheels! The C6 wheels do look nice, but do us a favor and put fresh rubber on them this time. P. __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

02-09-2011	#52
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: The phoenix rising Great news Dom! Another FBI Skunk Works project nearing completion has to make you smile. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-13-2011	#53
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,708	Re: The phoenix rising The motor is done and Pete and Al were able to cobble the 2.5" Borla that came with the car enough so I could drive it home. Naturally it needs tuning but I won't do that until I get a proper exhaust on it. There are leaks and that will throw off the logging making the tune not trustworthy. The 20" of snow doesn't help either. But driving it home Thursday, it felt strong and it took some getting used to but I could tell that even a slight touch to the accelerator brought on a response from the motor that was quicker than I have become used to. This will be an interesting case study of cam selection since Lgaff is building a similar motor but using a larger exhaust cam while I kept the stock exhaust with Pete's Stage II intake. I'm of the opinion that the LT-5 already has plenty of exhaust capacity as is, at least for a stock block 350. Having heads with cleaned up exhaust ports and headers produces an exhaust that is even more efficient thereby making a increase in exhaust duration counterproductive both for driveability and power. That's my working hypothesis. I think it will also be easier to tune without the additional overlap. In fact, the motor idled "decent" at 800rpm with the tune I had in the previous motor which was just a top end port and headers. Don't get me wrong, it needs work but not a bad starting point. Anyway that's my opinion and we'll see how the numbers line up. Should be an interesting experiment.

02-13-2011	#54
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,679	Re: The phoenix rising Dom, i consider those cams Stage I's Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage

03-09-2011	#56
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,708	Re: The phoenix rising While waiting for MF exhaust to be installed by Al, I got these too!

03-09-2011	#57
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: The phoenix rising you could have taken a couple pictures of the picked over Vette too.. LOL __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

03-09-2011	#59
Demps Join Date: Jan 2006 Location: Niceville Posts: 998	Re: The phoenix rising Awesome Dominic! Guess I shouldn't mention it has been mid-60s here. Jealous on the mod'd motor. Ted