So i dyno'd today and my best run was 147hp@5459rpm and 151ft/lb@4524rpm with 46psi @ WOT

then my friend who owns the shop, who is also a really good tuner, Told me that i should lower my fuel pressure and im currently running 24psi @ idle and 34psi @ WOT.

That got me 144.2hp@5347rpm and 148.6@5082rpm

My setup: 60mm tb, stock EFI, Crane XR3000 ignition with a PS91 coil, MSA 6-1 header, k&n cone filter, 2.5in straight pipe through a magnaflow 2.5in turbo muffler, stock 3.54 diff, early 5 spd and timing @ 12 degrees BTDC

I was also told that i should advance my time few more degrees. I plan to run 14 or 15 degrees BTDC

I'll try to have my friend scan my result sheet and get the pics from him then i'll post it. guess i'll make a new thread when i get the pics and sheet scanned

i 147 Hp? from 46 Psi, these numbers dont sound right...for starters that shounds like a arse load of boost, and you getting pratically no torque or power.

I dont wanna start another dyno debate either, but numbers shouldnt be this far out. I would espect these numbers if you didnt have a turbo bolted on.

Am i missing somehting?

147hp with a turbo??? doesn't sound right, unless you don't have one... I'm sorry I dont know anything about your car.

I thought he meant fuel pressure....?

your right, but ive never seen ppl comparing fuel pressures so analy.

There you go i knew i was missing something

I started to say...

I wasn't sure what was meant until the 2nd paragraph. 46psi is a LOT of boost.

alot of FUEL PRESSURE boost

hahaha....my bad guys....i meant fuel pressure. Im running EFI. Stock with a rising rate adjustable regulator. NO TURBO..but i wish i had one.

46psi of boost is insane!!! hahaha

anyone have any ideas or have done a baseline on thier 280z's or L28's with stock efi?

Is it 148 hp on the wheels or the crank?