Hi Guys,

Check out my Dyno below. The power is awesome considering it is a built motor with Stock APS 440cc injectors and Unichip. The tuner says everything seems fine in terms of AFR etc. But I think I am pushing it 2 much on my car because I should only be running 440whp with those injectors.

Been running about 4000km with that power... should i rather turn down the boost.. what are your guys opinion?

 

I did 450rwhp on a dynojet , ( stock aps TT , runing 10 lb , built engine with 9.2:1 of CR) and the fuel injectors were max out.
What is your CR ????
Do you have the stock aps fuel return system???
What kind of dyno???
You can´t run 1.1 bar with 440cc injectors and the stock aps fuel return , unless you reduce the boost from 4500 rpm to around 11 lb in red line.

 

Change out your injector ASAP!!! Built engines also blow up if you don't take care of these little things......

 

My APS injectors are also maxed out at 9psi. I did 449whp three years ago with it.

Good luck.

 

My injectors maxed out at 400whp.
I believe it is because I installed the CJM s1 fuel return though.

 

That is why, because the APS regulator runs these injector at a much higher FP to call them "440cc", they are probably really only 380's or so.

I run my HKS 1000cc injectors at 2.5BAR, 2.5-3 is optimal for FP.

OP, upgrade your injectors, and keep in mind if you stay with the APS FPR the injectors will be putting out more fuel than stated.

-George