depressing dyno numbers
Well since iv had my motor rebuilt and backin the car iv run into various little problems and such. Well i ahd finally thought i had everything taken care of i decided it was time to dyno. I had been feeling that my Z had felt substantially faster before the rebuild but wasnt sure. So here we have it 241 HP and 268 tq. I ran at what my autometer gauge said was 12lbs, I have a stage 3+ just about every minor bolt on. Stock intercoolers, injectors,turbos.Mods in my profile. Any ideas on what could be the issue? i ran a compression test right after wards and had a straight 150's across. The graph doesnt really indicate a boost leak. Ill post pics tom. any input would be appreciated
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Re: depressing dyno numbers
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Re: depressing dyno numbers
If you're pretty close to stock, thats not too far off base. it should be around 280~300 or so. My first guess would be to check for boost and vacuum leaks, especially after a fresh engine install. an EBC would help, upgraded intercoolers, and injectors. Some upgraded downpipes and test pipes would also help. those would make the world of difference right there, easily putting you well into 300~400 whp.
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Re: depressing dyno numbers
what is stock boost on the stock turbos again?
-teb |
Re: depressing dyno numbers
that is always depressing to see numbers less than what you think they will be. like chris said, check for leaks, its really easy to miss a hose or two when doing any major work on the VG.
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Re: depressing dyno numbers
Quote:
thats the thing chris iv got just about every bolt on on a fresh motor minus the injectors,intercoolers,turbos. Im honestly missing a big chunk of power and compared to other TT dynos my numbers seems to drop off in the pwer band. my mods: Koyo Aluminum Radiator Z1 aluminum lower rad pipe AMZ 1 piece drive shaft Wiesco .40 over forged pistons Eagle H beam forged rods Toga race bearings Toga high flow oil pump PWR 15 row oil cooler (not installed) JWT Aluminum Flywheel Samco boost hoses Joe P MBC Modified autometer air/fuel gauge autometer boost gauge 3 angle valve job AMZ test pipes AMZ divorced downpipes HKS Hi-Power cat back JWT POP Charger JWT ECU Auto Specialties UD Pulley RPS Clutch at 12 psi i should honestly be at @ 300whp min is what id think |
Re: depressing dyno numbers
did they have the wideband hooked up while you were on the dyno? maybe you were running out of fuel.
-teb |
Re: depressing dyno numbers
Unfortunately no, i dont have a bung in my exhaust yet, im having one put in and going back to check.
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Re: depressing dyno numbers
Heh-heh. You said bung. Heh-heh.
Good luck getting it all straightened out. Somethings not right cause Malman's tt swap with stock inj and stock ics and he was putting out 350 to the wheels. |
Re: depressing dyno numbers
those numbers aren't good at all man. Dont let chris talk, he doesnt know what hes saying. 241 is around what a bone stock TTZ should make to the wheels. At 12lbs you have some serious issues. My stage V++ TT at stock boost (10lbs) made 290+...at stock boost...as for the wideband, you dont necessarily need a bung welded on for them to take wideband readings. They can use a coupler with a metal pipe that has an O2 sensor in it and attatch it to your exhaust. Thats how mine was taken. Your curve definately looks like shit, it peaks then just drops. I would definately check for vacuum leaks, you'd be surprised where they can spring up on our cars.
Just for reference, heres my dyno at stock boost.. |
Re: depressing dyno numbers
i know, iv got some issues and im going to try to get tot he bottom of them before i go back.
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