t 25

[rusted sl2]

got a t25 and a rebuild kit dirt cheap...last project i had a 60 trim t3...what are the differences going to be in spool time and power ?...as i assume a t 25 is a smaller turbo?...btw ..i plan on boosting under 10 psi
thanks alot

[sl2fast]

if i remember right the t25 is a a ball bearing version of the t3 .42/.48 like they have on the saabs. it will spool a bit faster than your 60 trim t3 for sure. im sure there are more differences, and there are more knowledgeable guys here than myself to tell you more about it.

[onemeansaturn]

Nope. It is a much smaller turbo than a t3 (and more than likely not a ballbearing turbo). It will flow considerable less and make less power than your t3, but it will probably spool really early and fall on its face. They use them on 1,000cc bikes sometimes.

Joe

[sl2fast]

oops it was the gt series that was ball bearing

[mars_volta]

t2-small

[saturnspeed_12]

oops it was the gt series that was ball bearing

some not all gt series are ball bearing. when you see R, its ball bearing.

[The Shaolin]

Paperweight?

[S.Bretz]

t28's are brawl brearling

[rusted sl2]

i guess my question is will it get me 7-10 psi? ..(paperweight jokes aside)...lol

[The Shaolin]

Well, yeah, it will, but the bigger question is, what kind of HP are you going to get out of 10 PSI on that little thing?

[NJHK]

i guess my question is will it get me 7-10 psi? ..(paperweight jokes aside)...lol

Understand that PSI isn't everything that you're looking for when it comes to boost and power. PSI is a measurement of pressure. Any turbocharger can push 10 PSI, but it's the CFM of the turbocharger per PSI that matters. A T4 turbocharger with 10 PSI could result in a 200 HP gain, a T25 could result in a 50 HP gain with 10 PSI. The 2 different turbochargers create a different amount of compressed air and can handle an amount of pressure reasonably (efficiently).

Also, spool time depends on the motor you're putting it on. A motor that produces a higher exhaust flow (energy) will of course spool a turbocharger faster than a motor with less exhaust flow. Same goes with a turbocharger, the smaller turbocharger will of course have a smaller turbine, so it is easier to spin it cause of the less rotation mass than compared to a bigger one.

I will say don't try and cheap things out and build a kit cause you have a turbocharger in your posession. It's much much more than a turbocharger...there is alot to think about. What injectors you're going to use? Can your fuel system handle the power you're trying to put out? How do you plan on tuning? What are you getting for monitoring devices? The list goes on and on. It's much more than "yay, I got a turbo!". It's an big investment and big responsibility for you so you can have this system properly running and maintained.

If you have any further questions, just ask and I'll help if you want.

[rusted sl2]

im a newb by no means...ive been researching this for the last 2 years...and at one time had all componants together...about 2500 dollars worth. i ran into a streak of bad luck and had to sell them all. what im looking for is a fast spool..( im also rebuilding the turbo) i want small hp (stock internal DD)..im using #24 injectors and high pressure fuel pump , also purchaced a wide band o2 sensor and meter and a safc 2 ....i really want to do this right and not blow my car to hell...but thanks for the input guys every little bit helps

[rusted sl2]

ive heard guys talking about the mitsu turbos and how they were a waste of time ... just wondered if this was too small for what i was looking for or if it would work with the low boost system im looking into?

[The Shaolin]

Don't use the SAFC-II if you can help it.

Stock fuel pump is perfectly fine for what you're planning.

[rusted sl2]

ok...if not the safc , what do you recommend?