Power loss

gaveup · 04-16-2012, 03:42 PM

Quote:

Originally Posted by whoLEEoh

Hey guys I'm wondering why I'm losing power top end. Car builds good power til 6950-7000 rpm and then it plateaus til about 7500 then I lose 5hp til redline. Current mods.

Stillen g3
Motordyne manifold
Fi lth
Custom 2.5 exhaust h pipe with magnaflow muffler
4.08s
Uprev tune

Tuner says could be exhaust but I have no idea why it's happening. Any help will be appreciated.

I'd be more upset there are 370Z's that made like 20whp more on that dyno with just i/e and tune

TAKE THAT JULIO! JK of course..

It's weird though, didn't look like you LOST power, but it does flatten out. How does the car feel? I mean, you rev until 8k, you're going to fall more into your powerband and it should move nicely.

babbagandu · 04-16-2012, 06:02 PM

Quote:

Originally Posted by gaveup

I'd be more upset there are 370Z's that made like 20whp more on that dyno with just i/e and tune

yeah I was about to say....those numbers look like they should be for a stock Z...how is he making so little power with all those mods?
But also going by the trend of the line before the plateau it looks like he would reach 300 if it did not level off like that. But still, 300 also seems low for those mods + tune.

Is that a low reading dyno?

whoLEEoh · 04-16-2012, 06:25 PM

Quote:

Originally Posted by babbagandu

yeah I was about to say....those numbers look like they should be for a stock Z...how is he making so little power with all those mods?
But also going by the trend of the line before the plateau it looks like he would reach 300 if it did not level off like that. But still, 300 also seems low for those mods + tune.

Is that a low reading dyno?

It's a mustang dyno. Dynojets read 12% higher. So it'll be 313whp on a dynojet. But even on that dyno I/h/e cars are hitting 300. It also seems to me as if I would hit 300 if it would've kept climbing. So yea 20whp less and it's plateauing. FML lol

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