Found my HP problem

[lbszr]

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]

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]

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]

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=-]

hans,

you mean it is not done yet??

LOL

[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.

[XfireZ51]

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]

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]

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]

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.