Dyno'd my 280 on a Dynopack

[z_boi]

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

[z_boi]

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

[Deus Ex]

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?

[sonofzzzap]

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

[Alfadog]

I thought he meant fuel pressure....?

[Deus Ex]

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

There you go i knew i was missing something

[sonofzzzap]

I started to say...

[speedyblue]

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

[PrOxLaMuS©]

alot of FUEL PRESSURE boost

[z_boi]

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

[z_boi]

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

[RedHotZ]

Is it 148 hp on the wheels or the crank?