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Intercooler Restricting Power Over 250rwkw On R34 Gtt

allthewaytotheskyline
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SS8_Gohan Grand Master

SS8_Gohan

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gt3076R

Nissan housing on it

bolt is missing from the turbine housing

by Nissan housing, you mean OP6?

got a pic of the boost curve before the fix by any chance?

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Haines Rising Star

Haines

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nah not the OP6

its the recast version bigger wastegate hole etc

sorry no pic of the boost curve

it hasnt been fixed yet because Im tossing up if im going to buy a .82 external setup now that the turbo is off the car

Munkyb0y Grand Master

Munkyb0y

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ok ok update...taken my car to c&v performance today...waiting to see how it goes.

I'm interested to see what C&V do with it. He tunes my car. Ive heard some bad feedback on him, but as far as i can tell, he's very good at what he does.

No messing around. No chit chat. In and out. And despite popular belief, he has plenty of experience on Skylines/imports.

Just make sure you let him know you dont want it tuned to within one inch of its life, coz he'll do it. lol

They do a lot of drag cars, and like to get every last drop out of them on the dyno. If you gave him free reign, i have no doubt you would find a nitrous bottle in your boot :P

W0rp3D Grand Master

W0rp3D

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No messing around. No chit chat. In and out.

That foe some people is a bad reference on its own, as a lot of these guys will tell you they get an endless supply of people wanting to talk shit with them all day.

allthewaytotheskyline Mentor

allthewaytotheskyline

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nnnnnnnnnnnnnn newwwwwwwwwwwwsssss update, ok back from c&v performance and im pulling a ripe 280kw's at 19psi....droppping to in high revs 16psi...due to weak actuator(i was told). any other fix to this????

now...they didnt find any leaks but i suspect...that the last time i pulled apart the intercooler piping and put it back together (after the last dyno) i am presuming it was fixed then.

now im looking to get a 19psi actuator which i have been advised will give me a bit more power throughout the top end of revs as its falling off.

ive got to say....INSTANT, INSANE, BOOST ALL THE WAY TO REDLINE .

my semi slicks are frying taking off from cruising in second gear.

only downside i see..is that im getting knock of 40 when giving it stick...?? is that safe???

i will post the dyno sheet tomorrow...thanks for everyones contribution and help.

i will tell you all how it goes once ive put this bigger actuator in...dissapointed in the hks actuator as its not holding that wastegate shut...

any advice or direction to a 19psi actuator would be great.

paulr33 Grand Master

paulr33

Posted
Posted

level of 40 knock is reasonable levels of detonation - check the tune or just make sure all is ok

see if backing out 1 or 2psi removes that level of knocking, if so it might need 1 or 2deg taken out on the map somehwere

keep an eye on it (covered in the PFC FAQ) at 60 the engine check light will flash

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