At the shootout the oil pump failed on me due to an unknown previous problem. After we got the car back home, the front balance shaft was somehow out of timing and causing major vibrations up top. That was causing me not to be able to shift, along with a 3 year old ACT

New oil pump, no balance shafts, and awaiting a new clutch. Now if I could just get rid of all this extra weight

 

I have 3 cars with the same problem of not getting enough fuel when the turbo is spooling to full boost! I have a evo red turbo coming in for another car and would be happy to give you some logs razor. It will also have pte 1200's and a single pump!

 

Running out of fuel in what way? IDC maxed? Loss of fuel control? Loss of pressure?

Are you sure it's a hardware issue?

 

Everyone in this thread so far has a car (or tunes cars) that makes over 500whp or spike over 30psi on one pump. I ran 33-34 on a Green with one modded pump and 1680s and wasnt out of fuel when it was "spiking".

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DSMfan- sounds like it seized a balance shaft bearing...not an issue now obviously.

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Spoolnuptuning-

The 57 trim car that we did with the magnus runs a 30psi spike from an equivalent sized turbo as the Red. It made 474whp on stock cams with 85% IDCs on 1200s. The Red that we just got done tuning was tested on one pump so we'd know what safety level we have in the event of pump failure. It can run a 30psi spike on 1200s and one pump.

We are trying to figure out why we have no problems and you have 3 cars apparently that dont wanna play ball. The way you are jumping around on your explanation and tech doesnt seem to be helping the issue especially without logs.

 

Can we leave the **** swinging to the other sub-forums on this board? The EcuFlash forum is known for being a bit more "grown-up" I like to think.

Like aaron said above, we are trying to figure out why Spoolnuptuning is having an issue running out of fuel at peak boost where nobody else has.

I've tuned pretty much every stock frame turbo (BBK, WR, 20G 9, TME, Evo 8, Evo 9, Green, Red, etc) on E85, 50trims, 3065's, 35R's and I have never ever ever had a problem at peak boost on any of those turbos. Up top where the airflow and IDC's are the highest is where fuel delivery problems can crop up.

It's hard to understand the "issue" at hand when every post is saying something different than the last with no hard data to back up the claims.

 

It seems that the later the spooling turbo the better off they are! The air to fuel goes way lean (13 to 14), around 5 to 20 psi on the red and the green. Even with the tme wr car with rc 1200's the air to fuel is still riding the limit on spoolup to high 12's around 28psi on single pump! I did have a guy with a 1000's and stock 9 turbo to do fine, but we was only running 26psi. Its almost like there aint enough flow down low for fast spooling turbos, such as the red and green!

 

Sounds like the lean spool is still on if its doing that...or the injectors arent quite right.

 

I would suggest trying it with lean-spool off. Like I stated above I've tuned pretty much every stock-frame turbo on E85, including the fastest spooling ones (you keep bringing up the faster the spool the more the issue you have) and I do not have this issue at all.

5 to 20psi on the red? Again, try it with lean-spool off.

What does your IDC, fuel pressure and airflow say when you are having this "issue", look to the data to see if it's an actual hardware problem and not another "issue".

 

I do not have any current logs, but will try to get some! Thanks for your help and Im sorry if i caused any confusion!

 

Lol

 

My car will spike to well over 30psi by 37-3800rpm with no problems. The duty cycles are alot higher at 7k, even though the boost is 10psi + lower. Lean spool is not turned off.

Single Un modified 255hp, 1200cc injectors, e85 of course.

Soon the car will have a 35r on it, I guess I will see just how far one pump will go before I add another in.

 

Lol...I'll say you get to 28ish psi on the 35r...then you will be out of pump. I ran out of fuel at 26psi personally on my 35r setup with 950's and a rewired 255.