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Internal Wastegate For Gcg Turbo

Jsikalias

By Jsikalias,
in Engines & Forced Induction

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Jsikalias Rising Star

Jsikalias

Posted
Posted

hi

im after some answers regarding wheather any rb25 with a highflow have changed there internal wastgate too either external or internal at the moment my car has the standard one on there and its opening up because im loosing boost after 5000rpm. from about 14 - 10psi

which internal wastegate or external wastegate is best for my highflow thanks.

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Bass Junky Grand Master

Bass Junky

Posted
Posted

Are you sure it's opening up under boost?

If it is, there isn't anything you can do about it. A larger internal wastegate simply controls boost creep.

An external wastegate may solve your problems, but to go to that extent, you may as well sell your turbo, take the money you were going to spend on the manifold mods and wastegate and buy a GT-RS or a 2835 ProS.

my 0.02c

Jsikalias Rising Star

Jsikalias

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  • Author
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yeh iv checked everything iv changed the intercooler lol iv blocked the bov and also have put on a mate of mines one on and i have a gizzmo EBC so my other option is wastegate opening up because the boost from 2000rpm - 5000rpm is constant 14 then as soon as it touches 5000rpm it tails off. and the funni thing is when i run 5psi with the gizzmo it does creep too 10psi at 7000rpm so there is sumthing dodgy going on but when i take the line off the gizzmo and let the wastegate do its own thing it creeps about 7psi

dangerman4 Mentor

dangerman4

Posted
Posted
where would i be able to get one? in melbourne or is my only choice slide or performance wise

gcg will post one to you for around the $200 mark (i think) for a 1 bar actuator.

im sure theres turbo shops in melbourne that will have them in stock.

ring around and get a few prices and then play them off against each other til

you find a shop thats not going to screw you

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