Could be your boost controller and/or tune. How lean are your afr's during spool? What fuel?

 

hi

Sounds like you have a GT35R

GT30R gets full boost at around 4300...

Maybe you have a exhaust leak, post pick of your manifold wastegate setup...

.

 

What is your setting on the profec?

What mods?

 

Get a MBC and trash that greddy crap ebc....$.02

 

I have the same problem, here is my log and rom tuned to 1.5 bar, maybe someone can help me to reduce the lag. thanks guys.

My mods are:
kelfords 272 hks valve springs
walbro fuel pump
720cc Denso injectors
big intercooler.
2.5" all turbo pipes
3" complete exhaust
stock manifold
0.82 AR GT3076R
injen turbo intake
ARP head studs
Evo 9 pistons and rods

This is my engine:


My Log: https://www.evolutionm.net/forums/at...se-logevo6.zip

 

Hi, my afr's during spool should be 11~12 and we are using RON 97 but i duno what's the octane value here in Malaysia.

 

Hi Supersal my friend,
how to check the exhaust leak? u r refering to the exhaust manifold part?

Will post the picture tomorrow.

 

Maybe someone can upload a bin and log that shows a perfect mixture and timing for a good spool and power, just to consider how to make a good tuning.

 

Low Boost :
Set = 35%
Gain = 12%
Set Gain = 1.15
Warning = 1.63
Limiter = 7%

High Boost :
Set = 45%
Gain = 15%
Set Gain = 1.20
Warning = 1.75
Limiter = 10%

I hope i set it right...

 

Are you using original exhaust manifold with ATP's adapter for gt3076r ?
I heard its very restrictive ...

 

well from what I remember james is the set is your target boost, and your gain is how quick you hit that target, what you can do to experiment, is how you have it set now, write down all your specs, then try keepin your set where its at and experiment with the gain increasing it in 5 to 10 increments, see if that helps your spool. maybe increase your set gain up .5 to .10 see if that also helps.

 

Thanks Dastallion...

 

It looks good to me. The only thing that I like to do is have the ebc take over right at wastegate pressure. You might try playing with the set gain.

 

swap it out for an HTA green

 

Yes it's correct!!! Maybe a good tubular manifold, with tubular manifold the turbo response will be best, true??