Question about T25.

[Curbow_USMC]

this might be a dumb question but i am just wondering if a T25 from a SR20 spools/reaches max boost any slower than a DSM T25? like i said this might be a dumb question but I'm a total noob when it comes to turbo's.

[D16Civic]

I believe the sr20 t25 is bigger than the dsm t25. So it should spool a little later than the dsm, but it shouldnt be a huge difference and will still spool quickly.

[Curbow_USMC]

i just trying to find out if i want to use my DSM T25. i can get my hands on a SR20 one that is why i am asking.

I want something that is still small but dont run out of boost before i hit redline. (i'm only gonna be running about 7-8psi)

[green91]

it will maintain boost until your redline. dsm t25 and nissan t25 have different flanges.

[Curbow_USMC]

it will maintain boost until your redline. dsm t25 and nissan t25 have different flanges.
So your happy with your T25? And what kind of #'s are you putting down?

[sebastianHoff]

on the sr the t25 runs outta breath just north of about 6800rpm, thats where it stops pulling hard. between about 2800rpm and 6500rpm it a great little turbo. the t28 has a bit more huff but needs another 100rpm to kick in, of the 2 id recommend the t28.

[green91]

the dsm t25 on a d-series is to small for me. im in the process of upgrading as we speak. it pulls real good around 3k-5700 but loses steam past that.

[miro_gt]

you can fix the fall at the end by using a boost controller that allows boost -RPM correction, such as the E-01 programmer for EManage


but yea, expect falls of about 1psi for your boost levels

[sebastianHoff]

on the sr theres nothing up there anyway cause the torque peak is way back at 5500rpm, on a stock motor.

[PSINXS]

i know for a fact on my friends 99 gst his t25 wouldnt be worth a poot after 5k

[Curbow_USMC]

you can fix the fall at the end by using a boost controller that allows boost -RPM correction, such as the E-01 programmer for EManage


but yea, expect falls of about 1psi for your boost levels

So with a boost controler i can make the boost last longer? amybe up to 7k or at least close?

[Gutling]

dsm t25 wont bolt up to sr will it? not sure but i know evo turbo are twin scroll, not sure about older dsm. just something to make sure of before u buy one. and yea sr factory motor kinda pointless to go past redline, its a tq void up there.

[sebastianHoff]

im tryin to figure that out now. the big 28 off a dsm has the same trim level as a gtir t28, which is almost as good as the potato

[green91]

NO!!! read my post. the DSM t25 and nissan t25 have DIFFERENT FLANGES!!


btw, a rpm dependant boost controller with a t25 seems like a stupid idea to me because the boost controller would cost more than the difference in the price of a turbo that can flow in high rpms and your t25!

its not that your turbo cant hold the boost, a t25 will easily hold 7psi until redline. its that it doesnt flow enough CFMs in high rpms to feel like it keeps pulling.

[Curbow_USMC]

oh ok, well thanks for the info

[miro_gt]

I never said that it's gonna be cheap :cool:

[sebastianHoff]

i know the o2 flange is different but is the exhaust manifold flange different too?

[Hondasi]

i got t25 need rebuild seals gone but still works no shaft play 20bux need it out of my garage i had a sr20 t25 shit still pull hard for a stock turbo got a bigger housing than t28 get a cutom turbo its call big t28 all the internals of a t25 into a t28 shell some shit like that ask famous_attious?? dont think i spelled it right but he sell alot of nissian parts

[green91]

i know the o2 flange is different but is the exhaust manifold flange different too?

yes, i believe they are very similiar with the exception that the dsm is 90* degrees different than the nissan.