JDM Nissan Guru's...Need help

I've been trying to get an answer on the question of the the difference between z32 300zx t-25 turbos and an SR20det T-25. I'm a technical person I would like to know specifically what is different.

And the other question...Are the GTiR cams any different (better) than the RWD SR20DET cams? I've heard the're a little more radical. Just curious. Thanks in advance.

I am no guru, but the s14 sr20det has variable valve timing and the GTiR does not, at least I beleive so, someone correct me if I am wrong
... so there must be some difference in the cams from what I know about engines ^^

they might be the same, id rather have the individual throttle bodies off the GTiR before its cams lol.

I belive the A/R ratios are different, althoguh Im not sure. Let me get back to you on that.

I have an s-13 sr20 I guess I should have mentioned that. And yeah the individual throttle body thing is pretty cool too you just have to have a big phuckin hood to clear it. I'm still thinking about using it. But I have also got access to some GTiR cams w/ cam gears. Just wondering if the cams would be worth my time.

T25 - Found in the CA18DET S13 Silvia's and 180SX.
Compressor: 45 trim, .48 A/R housing
Turbine: 62 trim, .49 A/R housing

T25 - Found in the S13 SR20DET Silvia's and 180SX.
Compressor: 50 trim, .48 A/R housing
Turbine: 62 trim, .64 A/R housing

T25 - Found in the VG30DETT 300zx.
Compressor: 60 trim, .48 A/R housing
Turbine: 62 trim, .64 A/R housing

T28 - Found in the S14.
Compressor: 60 trim, .60 A/R housing
Turbine: 76 trim, .64 A/R housing

T28 - Foud in the Quad Throttle Body Pulsar GTiR SR20's.
Compressor: 60 trim, .60 A/R housing
Turbine: 79 trim, .86 A/R housing

T28 - Found in the the S15 Silvia/200sx.
Compressor: 60 trim .60 A/R housing
Turbine: 62 trim, .64 A/R housing


Also, the cams in the GTiR SR20DET and the RWD SR20DET are the same. The cams that they have are different than the N/A SR20DE though. The SR20DET has a longer duration exhaust cam, for obvious reasons.

sweet thank you very much. So the 300z is actually a tiny bit bigger.

that GTiR turbo looks a bit better on paper then the others. If you have access to a gtir turbo I would try to swap it on.

i think the 300z turbo will spool up a little slower but will have jus a lil more top end ..

that GTiR turbo looks a bit better on paper then the others. If you have access to a gtir turbo I would try to swap it on.

This was the same turbo on the s-14 & s-15 silvias. I had a chance to get one for $600 didn't have the money.... Now I'm looking at a Precision SC-61 for about the same price. They don't have a sompressor map on it yet. But the island looks 10x better than a Garrett 60-1. And they're claiming it will support over mid 600 RWHP!!!!

than a Garrett 60-1.

The 60-1 is one of the worst matched turbo's for the KA out there. There are plenty other turbos that will make a lot of power, but will work waaay better than the 60-1.