Rb25Det Unique Problem

[jeffworld2]

Thought id have a crack at explaining the difference between air pressure and air volume

blow up a balloon to 10psi

now blow up a hot air balloon to 10psi

see which one takes longer.

Its ok i know im the best ever

ciao

[JKR-32]

Lol, This thread was an exceptionally entertaining read.

OP, good to see you come around in the end, just don't be a dick when people are trying to offer you free help that is correct.

[paulr33]

10psi on stock turbo is not the same as 10psi on a T04Z

why?

because pressure does not equal volume

the compressor wheel on the stock will say flow 40lbs of air at 10psi

the compressor wheel on the t04z will say flow 120lbs of air at 10psi

much like a car tyre vs a truck tyre

both tyres are at 40psi

of course, however the truck tyre has more air volume inside it

with excess airflow from a larger turbo the fuel mapping will be off the planet and lean out

lean out = excess heat = excess heat = engine failure likely

be careful

[abr33]

Its all sorted guys, got it tuned and we could only get about 260rwkw at 14psi because my intercooler is only 500x130x50 and we were getting temps up to 70+ degrees and it was tapering off, and auto was being a bit funny its still awesome power and through the auto is interesting, its on the verge of uncontrollable when you hold it wide, unlike a manual just hitting limiter, it goes straight to 2nd and then 3rd, its like a dog trying to run on ice. I know there are heaps of you with double and more power than that, but for me im happy with it.

BTW running haltech e11 v2.... and im going to ( in future) do a 4k stall, manualise box and put a crank collar on before i go back. My tuner said the t04 hasnt even come to life yet and says ill easly crack 400.. i do have a bigger intercooler too.