I'm just curious what kind of load people are seeing on their car.

I have an EVO9 with GM 3 port boost control, FMIC, TBE, and tune. Stock IC piping and airbox with K&N filter.

On pump gas I can hold a load of 250 from 3k-7k. But on race gas I up the WDC and spike the car to 27psi. On race fuel my load jumps to 280 then slides down to 250 at 7k.

I'm curious as to what other people are seeing on stock and stock like turbos.

 

by pump gas you mean 93 and not 91 pisstane correct? And you're talking about 2byte load? At what psi are you hitting that allows you to maintain 250 load by 7K?

 

My VIII MR with mbc, k&n drop-in filter, tbe, fuel pump, tuned on 91 oct with peak boost at 24 psi goes like this:

259 at 3700 rpm, boost: 24.5psi
250-240 from 3800-6200 rpm, boost: 24.1 to 22.5, timing 3,4,5,6,7.
239-210 from 6300-7500 rpm, boost: 22.3 to 21, timing 7,9,11,13,14.

No knock with AF 11.2 upto 7000 rpm and 10.9-10.6 after 7000 rpm.

 

my profile looks like this: Evo IX (Stock Turbo)
I hit 275 @ 3500
265 @ 4500
255 @ 5500
250 @ 6500
235 @ 7000

A/F was 11.3 to 7000 and 10.8-9 by 7500 but since then I have added the cooler, LICP and a HFC, so I think its safe to say my A/F is all over the place...

 

'Dude' and I worked together to tune his VIII with EVO 8 TME turbo.

2-Byte Load:
93octane - 287
E85 - 310

26-29 psi

TBE
Comp Cams 280s
850cc injectors
Walbro 255lph
GM 3-port

 

#62.5 boost pill , mods in sig
100% wastegate
On hot day, I can hit 250 load, then its tapering to 210-220 at 7500.

85 to 100% wg
On cold night, spike to 280 and at 7500 - 220-230.

 

Evo 6 with Forged engine, S1 cams, FP green, large intercooler, hks filter, 3" exhaust, walbro fuel pump and PTE 680cc injectors.

Usually hit between 310 and 320 load.

Sometimes as high as 330 load.

2.3bar peak / 1.8-1.9bar held

 

Thats some strong pull!

EVO 8 with cone air filter, catback, 24psi boost. Colder days i can hit 265, I usually see 257-260 at 4500. Tapers down to 230's at 6700 rpm.

 

E85 24psi I see maximum of 310-320 with the profec b. Now that I have installed a MBC and run 26-27psi I am seeing a maximum of 338 with some pretty agressive timing and a leaking jdm mr bov 338 was in first gear boost spike probably closer to 30psi though but holding 26psi..Yes I am spinning the crap out of this turbo wit the leaking bov.

 

oops wrong thread.... the title was misleading..

 

Hahaha....

Stock EVERYTHING (besides a slight tuning action)... I do mean everything even boost 17psi highest in 3rd gear tapering to 13 @7k (seems low but that is what my ZT-2 reads).

I hit 236 and drops to 208 @redline.

 

She goes ok.

But I am feeling the need for more

 

The problem with boost leaks is that indicated load gives a false high reading and kicks everything into the wrong fueling and ignition map cells.

Better fix it.

 

91 octane
295 peak load
250 @ 7k

 

MAFT Pro throws everything off so its hard for me to say where it would be on a stock MAF at the moment. However I can tell you on the Green with Stock intake cam and 280 exhaust back in the day (stock intercooler and hacked lid box) I was hitting 345 @ 6000 and dropping to 265 by redline with a pulled WG line...boost was 33-27. It may have peaked higher but the 3 bar pegs at 33.28 so I am not sure...this was on C16.

Nowadays with big cams/intercooler/pipes/filter/Pro/etc. and almost as much boost it only shows 308 at 28psi on my current mix gas E35. I expect more when I switch to straight E98 no mix.