Parts wise meaning compressor/turbine wheels and housing?

I have a t25 turbo from a sr20 I bought a few months ago for a few $$. I had plans to have it rebuilt to factory spec and run it on my d16 sohc. I have since decided to move on to a b18c. If I can get away with it I would rather take what I have and upgrade the pieces on it instead of going out and buying a new t28/gt28/3076r.

My goals would be 250hp (max) and not have the turbo run out of steam before 8000-8200 rpms

 

I would not even consider a T25 turbo for a Honda.

 

you can make about 200-250whp with that on a d16 I would rock it if i were you it would be good for dailing driving but its not gonna leave you much room for grouth but you can run that and save up for somthing a little bigger like a garrett t04E you can make 300-350 on that, that would be perfect for a stockD16 block with forged internals. but if you plan on running that on a B18c you will have that turbo at full bost at 2-2.5k witch will suck I wouldnt run that turbo on a B-Series at all you would be choking in the topend for sure.

 

I'm sorry but that won't happen. you're better of staying NA if that's the case. Its better to sell that to another SR20DET enthusiast and start over. You need at least 41lb/min or so to do what you're asking, and even a bit more power later.

 

Listen to this guy he knows his ****! ^

 

Why is this? I uaed a 31lb/min turbo and made close to 400whp on only 13psi? What determines the amount of flow from a turbo to make x power? Does fuel play a roll in compressor choice?

 

Turbo will stay a paper weight then

 

You either didn't have 400whp or it was not 31lbs/min of airflow. But one can't make the other.

There's a very complexed equation taking into factor of CFM of cylinder head, max rpm, a few derivatives of atmospheric pressure, etc. Bottom line is, 31lbs/min won't make even close to 400whp. Even on a Honda. Ya can't beat Physics.

 

^ he's right turbohatch96y7.

ive read that generally 10lbs of air a min=1hp and theres no way 31lbs/min could suppport 400hp. it also depends on engine ve as well as what the shodan mentioned. i would like to see the dyno graph of what you claim

 

I have no doubt hes most likely right I must have the wrong info on the turbo charger., and maybe It wasnt exactly.400 more like 380whp. Ihave the graph of one of the pulls ill try and find it

 

Back 10-12 years ago kits were using T25 turbo's. Cars were only running ~6 PSI and fuel managment consisted of a Missing Link and FMU. It was caveman days, but T25's did deliver modest power (back when 200HP was doing good).

You can look at this way. A T25 might only give you 220. But it could be used as a natural road block to keep you from going any further down the path. Or maybe thats a bad thing

 

No you cant beat physics

 

OP,

Lets review something.
The SR20 specs:
Displacement: 1998cc (2.0 liter)
DOHC 16 valve

D16 specs
Displacement: 1590cc (1.6 liter)
16-Valve SOHC VTEC

Now the SR20DET used this turbo:
Compressor: T-25, 60 trim 56mm BCI-1 compressor.
Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.

If that is exactly what you have then you "might" be able to use a B series motor to get the displacement higher to support it. A B20 is really the only high displacement B series honda made at just over 1900cc but then again the motor would need work to support that turbo. If money was no object then I would go with a H22 and throw the T25 on. Unfortunately as other mentioned sell it and get a new turbo.

For the D series I would stick to a TDOH turbo or something small for a quick spool time. the D stock on boost will achieve 210whp, but at 250 you will need to upgrade the internals to turn up the boost.

 

recommending a t25 on an h22, wow.

 

 

hahahahahaha

 

Why you can't? You can run a turbo on any motor you want, but you should pick the motor and then pick the turbo to match the motor. The t25 is not meant for a high RPM car like the Honda, but the spool time on the H22 will be instant. At high RPM though the turbo will be useless and not able to keep up to speak. This was in regards if he was dead set on that turbo with a Honda motor, the H22 would be the best pick. I remember back in the day when we threw a t25 on an eclipse, and boy that turbo was to quick to spool but had no top end power.

 

A d16 or a b18 would have no problem spooling that turbo. thats a turbo I would run on a stock d16 just for a few more poneys for daily driving. there is no way I would waste my time putting that on an H22 or a b18 for that matter.. the H22 would be spooling that thing at idle hahaha besides that you dont want to be in boost constantly. I dont even spool my 6765 until abou 4500rpm and thats where I want it I get great gas mialage as long as I stay out of boost but if I want to get it boost it doesnt take long to get there. Honda motors are High rpm peaking motors I dont see any reason to run a turbo that is gonna be out of breath by the time you get intop the sweet spot of the powerband?

 

Not exact, but the general rule of thumb is to multiply the lbs/min by 10....that will give you an approximate max power

There were several different t2 based turbos used on a Sr20s....they are sediment for quick spool very responsive but will choke up on the top end

 

I have a old t25 desk toy in my cubical...

spinning the blades is relaxing for me..

 

LMAO!

 

.... lol...true story....

I was stuck hosting a boring family meeting bunch of old annoying rude asian uncles and aunts (making funeral arrangements)... and i was about to go insane.... so i snuck out into the garage, unwrapped my new gt3540s turbo , spun the wheel a few times and it totally relaxed me...






So i keep a t25 at my desk....whats weird about that....haha lol

 

Lol never thought about that. I think ima put my t25 in the work van to deal with annoying customers/girlfriend... Thanks bro!

 

that is a great Idea!This is what im runnin Precision 6765H well not at the moment precision is rebuilding it they just shipped it out yeasterday so I should get her back next week! : and I didnt have to pay out of my pocket cuz it was a factory defect I guess