Found my HP problem - Page 4 - ZR-1 Net Registry Forums

lbszr · 07-14-2009

Quote:

Originally Posted by XfireZ51

lb,

There were 4 of us there that night. 90, 91(karterdon's), 92 (mine), and a 93. The dyno operator told us they had nicknamed it "heartbreaker" because it was not as "optimistic" as some others. Each of us, with the exception of karterdon and his 91, had previously dyno'd our cars and in each case we observed that the resulting numbers that evening were between 15-20rwhp down from our previous runs. This was all SAE corrected.

That sounds good to me to think it has 415 instead of 395

XfireZ51 · 07-14-2009

Quote:

Originally Posted by lbszr

That sounds good to me to think it has 415 instead of 395

That's really my point. You need to pick a benchmark and stick with it to measure any changes. You can make the number almost anything you want depending on actual v sae v standard correction.
A wise old tuner told me to use the trap speed. That's the real measure but again on a relative basis.

Ccmano · 07-14-2009

OK....

Who's the snitch????

Got a call today from Mike at Twisted Pipes. Said, "someone" emailed him a cut-&-paste of my comments on this forum...

I have to say he was very nice and was concerned that I thought there was a problem with his work. I told him that after 9 months I did not expect him to do anything. He insisted that I bring it back and he would make it right. You don't see that very much these days! When I told him that I was going with the Mflow set up he said to bring it along and he would take care of it.

I should have the rest of the pieces I ordered from Jegs in the next few days. SS Pipe, new header reducers and clamps.

I may just take it back to him and see what happens.

Now...will this be clipped and sent as well?
H

LGAFF · 07-14-2009

Hans,

That would be me, I felt responsible as I sent people to Mike after using him several times ...I did edit the comment to only the info about the set up and any personal references were cut out......

I did not want him to call you, just told him that I felt responsible.

Sorry if I caused an issue.

-=Jeff=- · 07-14-2009

hans,

you mean it is not done yet??

LOL

LGAFF · 07-14-2009

Hans, this is what I sent Mike.....

I loved the sound and was happy till the dyno run. I finally jacked the car up and crawled under to take a look at their work today. What I didn't realize is that for some reason the shop used 2" pipe between the x-pipe and the resonator and between the resonator and the connection to the 2.5" Muffler pipes. This meant I had a system with a 3" header collector into 3" HF Cats into a 2.5" x-pipe into 2" pipe into a 2.5" resonator into 2" pipe into 2.5" mufflers.

No reference to a post, told him you sent me a note.

XfireZ51 · 07-14-2009

Hans,

Mike put my MFlow system on. I can only say that in my case he took over 3 hrs to put it together properly. Mine doesn't gave any of the issues you showed in your pics. I also don't have the cats.

Ccmano · 07-14-2009

No worries... guys.

Thought that might have been you Lee.

I actually thought it was good of him to call in the way that he did. I just have to decide if I want him to install the Mflow stuff. This time I think I'll stay and watch him as he does it.

H

Kb7tif · 07-15-2009

Quote:

Originally Posted by LGAFF

Hans, this is what I sent Mike.....

I loved the sound and was happy till the dyno run. I finally jacked the car up and crawled under to take a look at their work today. What I didn't realize is that for some reason the shop used 2" pipe between the x-pipe and the resonator and between the resonator and the connection to the 2.5" Muffler pipes. This meant I had a system with a 3" header collector into 3" HF Cats into a 2.5" x-pipe into 2" pipe into a 2.5" resonator into 2" pipe into 2.5" mufflers.

No reference to a post, told him you sent me a note.

That sounds like a ^%$#house install to me. Good name for the place. Find another shop.

lbszr · 07-15-2009

Quote:

Originally Posted by XfireZ51

That's really my point. You need to pick a benchmark and stick with it to measure any changes. You can make the number almost anything you want depending on actual v sae v standard correction.
A wise old tuner told me to use the trap speed. That's the real measure but again on a relative basis.

I agree totally, that's why BG is the only one I've had mine on for comparison after porting.

07-14-2009	#33
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Found my HP problem OK.... Who's the snitch???? Got a call today from Mike at Twisted Pipes. Said, "someone" emailed him a cut-&-paste of my comments on this forum... I have to say he was very nice and was concerned that I thought there was a problem with his work. I told him that after 9 months I did not expect him to do anything. He insisted that I bring it back and he would make it right. You don't see that very much these days! When I told him that I was going with the Mflow set up he said to bring it along and he would take care of it. I should have the rest of the pieces I ordered from Jegs in the next few days. SS Pipe, new header reducers and clamps. I may just take it back to him and see what happens. Now...will this be clipped and sent as well? H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

07-14-2009	#34
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Found my HP problem Hans, That would be me, I felt responsible as I sent people to Mike after using him several times ...I did edit the comment to only the info about the set up and any personal references were cut out...... I did not want him to call you, just told him that I felt responsible. Sorry if I caused an issue. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-14-2009	#35
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Found my HP problem hans, you mean it is not done yet?? 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

07-14-2009	#36
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Found my HP problem Hans, this is what I sent Mike..... I loved the sound and was happy till the dyno run. I finally jacked the car up and crawled under to take a look at their work today. What I didn't realize is that for some reason the shop used 2" pipe between the x-pipe and the resonator and between the resonator and the connection to the 2.5" Muffler pipes. This meant I had a system with a 3" header collector into 3" HF Cats into a 2.5" x-pipe into 2" pipe into a 2.5" resonator into 2" pipe into 2.5" mufflers. No reference to a post, told him you sent me a note. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

07-14-2009	#37
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,708	Re: Found my HP problem Hans, Mike put my MFlow system on. I can only say that in my case he took over 3 hrs to put it together properly. Mine doesn't gave any of the issues you showed in your pics. I also don't have the cats. Last edited by XfireZ51; 07-14-2009 at 09:30 PM.

07-14-2009	#38
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Found my HP problem No worries... guys. Thought that might have been you Lee. I actually thought it was good of him to call in the way that he did. I just have to decide if I want him to install the Mflow stuff. This time I think I'll stay and watch him as he does it. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.