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That one is a bitch to change

Good luck

Thanks prob get some mates over so I don't have to do it all alone and to talk shit

Sorry to hear mate, Buy some gaskets and change anything suspect while your on the job :)

This will be the go if I'm changing that may as well fix the lot

G2.5 is a smaller turbo then a G3, they generally maxing out towards 260rwkws mark. So its about at its limit.

He's right, the graph shown is for a G3, but the intake leak might still be present and causing the 5ish psi boost drop. Fixing it might get him another 10-15kw from threshold to redline, definitely worth investigating.

http://www.hypergearturbos.com/atr43.html

The link says G3 but that is the graph from the G2.5 on the page. Either way I will suss out any leaks and give it another run soon.

That G2.5, I thought was a high flow. Preload the actuator about 10mms, if it starts to pin then its usually a restriction some where. This one don't have much of boost drop.

also stao,

your new website isn't meta tag searchable/ google submitted as i cant seem to find the new one on google which is meant to have more details on your range then the old website

That G2.5, I thought was a high flow. Preload the actuator about 10mms, if it starts to pin then its usually a restriction some where. This one don't have much of boost drop.

Hiflow of a stock 25 turbo? It has a 3 inch inlet so i don't think so

lol... does it fry tyres when you smash the pedal?

Yes it does, because the car is so big and front wheel drive, it wheel spins on the spot with stock tires. lol

Hiflow of a stock 25 turbo? It has a 3 inch inlet so i don't think so

Preload the actuator to about 10mms. If you a have a boost gauge, check the pressure drop before and after the cooler, also try a run with no exhaust on.

Yes it does, because the car is so big and front wheel drive, it wheel spins on the spot with stock tires. lol

Time for some M/T tyres? :P lol

This is for a good comparison of the new ATR28SS1 V ATR28G1 based on the Kia's G4GC engine:

SS1 at 8psi, G1 at 12psi:

ower:

Thin red: SS1 @ 8psi,

Green: G1 @ 12psi

Thick Red: NA none turbo @ 0psi

ss1vsg1power8psi.jpg

Boost:

Green is G1,

Yellow is SS1

g1vss1boost8psi.jpg

SS1 at 14psi, G1 at 12psi:

ellow: SS1 @ 14psi

Green: G1 @ 12psi

Red: NA @ 0psi

g1vss1power14psi.jpg

Boost:

Yellow: SS1

Green: G1

g1vss1boost14psi.jpg

This is an excellent turbo for around the 200rwkws on a SR20det.

I don't think that would be a problem. I can upgrade it to the latest profile, which is targeted at boost dropping issue with internal gate. PM if interested to go ahead.

Those are a set of CT20 Toyota Supra turbochargers that I've recently done. Those are rated to about 400HP each. Running ATR28G3 CHRAs. photos shown compressor and turbine wheel comparison, profiled compressor and turbine housings, and completed turbocharger assembly.

chra.JPG

turbine.JPG

housing.JPG

turbos.JPG

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