No HP gain after costly mods. bad tune or exh?
06-07-2012, 03:23 AM
#1
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No HP gain after costly mods. bad tune or exh? before latest mods: prc stage I heads, MS3 cam, 42lb injectors, ls6 intake, long tube headers, 3" y-pipe, stock intermidiate pipe, magnaflo muf, stock tail pipes.
Dyno=405rwhp/363torque
today added: Fast 102 with Fast fuel rails, 102 tb, no MAF and running speed density.
todays dyno=406rwhp/360torque
Are these heartbreaking results due to a bad tune, restricted stock intermidiate pipe and tail pipes or could it be something else? This latest mod was very expensive for me to get no results. Can anyone help me figure this out?
Dyno=405rwhp/363torque
today added: Fast 102 with Fast fuel rails, 102 tb, no MAF and running speed density.
todays dyno=406rwhp/360torque
Are these heartbreaking results due to a bad tune, restricted stock intermidiate pipe and tail pipes or could it be something else? This latest mod was very expensive for me to get no results. Can anyone help me figure this out?
06-07-2012, 03:33 AM
#2
Want to rule out exhaust? Put a cutout on the ypipe before is goes back to stock diameter.
FWIW, there have been a handful of people see zero gains with the 102 setups. It is VERY few and VERY far in between but not unheard of.
I would have expected nice gains with your setup however since you already had heads and an ms3 cam.
Same dyno, same tuner?
FWIW, there have been a handful of people see zero gains with the 102 setups. It is VERY few and VERY far in between but not unheard of.
I would have expected nice gains with your setup however since you already had heads and an ms3 cam.
Same dyno, same tuner?
06-07-2012, 03:42 AM
#6
Looks to be a tad over 1,300$ maybe?
You can get a 3" manual cutout from summit/jegs and have someone weld it in for next to nothing... Jump back on the dyno for one pull and see what that does. That is cheap, should pick up power, and is easy.
It will rule out one downside to your setup.
You can get a 3" manual cutout from summit/jegs and have someone weld it in for next to nothing... Jump back on the dyno for one pull and see what that does. That is cheap, should pick up power, and is easy.
It will rule out one downside to your setup.
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06-11-2012, 07:54 PM
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Its a forged Texas Speed bottom end also. Just to update, I havent been back to the dyno yet but I will post the dyno numbers as soon as I get them. I had developed an oil leak with the last dyno run and have it apart waiting on knock sensor grommets. The catch can was connected backwards also.
07-05-2012, 09:24 PM
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Dyno results with cutout Sorry it took so long to get back with you all. I was only able to do two pulls today and heres what I got:
418rwhp/367torque
It still seems like I should be doing better than this. I still dont think the Fast-102 with T/B has done anything for me except take my money. I cant figure this out. The outside temp was 99F though. I have the dyno sheet if it helps to figure this out
418rwhp/367torque
It still seems like I should be doing better than this. I still dont think the Fast-102 with T/B has done anything for me except take my money. I cant figure this out. The outside temp was 99F though. I have the dyno sheet if it helps to figure this out
07-05-2012, 10:33 PM
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