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Thread: 4agte turbo options.

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    Default 4agte turbo options.


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    hey Guys,
    Been doing a bit of research and trying to work out what turbo is best for a 4agte setup. Running a stock gze ecu with (front mount and exhaust). Currently have a t-03 or what i thought was, but all i know is it was off a series 5 rx7 seems laggy. Looking for a fairly responsive type setup good for little bit of slidding but mainly just street and some good fun.
    Whats been done/run and works well or what do you boys reccomend?
    cheers
    cotts

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    t28 turbo is best suited.. full boost by 3700rpm hold 16psi to redline.. Imo t2 flange the way to go.. Weld shut the internal gate and run external

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    t28 non ball bearing of aussie s15 and all s14s. so much more responsive than a t28bb version and yeas i hvae done a straight swap comparison on my car!!!
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    whats the lag difference between a t28 and t25g?

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    They feel both the same.. But the t28 comes on harder.. t28bb turbo is faster spooling but you dont feel the torque as much as when a bush t28 comes on so its hides from you.. I would recommend a gt28rs for big power stock block. But for fun response gt28r from s14 , s15 bush bearing

    Quote Originally Posted by Nic19 View Post
    whats the lag difference between a t28 and t25g?

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    what about the kkr280 and 330? they would be easy to set-up.

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    easy to setup? y any easier than any other turbo???
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    Go T28 roller bearing
    you won't look back mate!

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    because they dont need water lines ran to them.
    how much power could i expect out of a smallport with a t25g or t28 on it?

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    Nic19, I've owned a KKR330 before and it had water cooling. It's marketed as a direct replacement for the T25, and thus uses the same lines.

    HKS GT2510 is apparently a brilliant turbo for the 4A. It has almost identical sized turbine and compressor profiles as the T28 Ball Bearing, but obviously with improved fin design, etc for faster spooling and a little more top end power. If you want a cheaper option, but something brand new, the Garrett GT2560R is the "aftermarket" version of the T28BB. Can be had for around $1000.

    If you want something that gives out more power but at the cost of having to rev higher, maybe a Disco Potato might be the go? Would also be suitable if you have cams + headwork.

    EDIT: Ball bearing is a nice feature, but not necessary IMHO. Internal wastegates are a blessing too. I didn't do them on my build, but I kind of wish I had in retrospect. Very similar performance for less dosh.
    Last edited by PuGZoR; 27th March 2009 at 09:29 AM.
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