Looking for some confirmation on turbo sizing
Thread Starter
0.0 BAR
Joined: Jan 2005
Posts: 5
Re:Looking for some confirmation on turbo sizing
Dr. Boost:
I have no idea what you just said. Being that the engine puts out 135hp stock, it's obvious that you didn't even read my post. How a 66% increase from 135 hp (my original statement of 145 was high) equals 105 hp is quite beyond me, but then again, what do I know, right?
Mike,
Thanks for the serious reply. Yes, that is the correct engine.
As far as the engine management and tuning, I already have that taken care of, thanks. I'm really just trying to get some suggestions on which turbo will be the best to use. By "best" I mean a turbo that will give max power above 4000 rpm, anything below that doesn't really matter much. The customer is willing to give up a level of drivability for more power. He's looking to eventually get 250 whp. (I've got some other things that will can be done at one point or another, for example it's pretty easy to stroke the engine to 1.5 by using parts from a similar engine.)
I certainly think that with proper tuning the engine will be able to handle 15-17 psi without too many issues, running 93 octane. I'll check out that turbo you recommended.
I do have to do more research on the turbine side. I feel that the T3 turbine will be a bit too much, so by using the T25 it will spool a lot better. We won't know for sure until it's actually being tuned, but I want to get as close as I can. It seems to me that choosing the turbine side is more guesswork than the compressor.
I haven't looked at the CT26, other than staying in the Toyota family I don't really see any reason to use it over the more common T28, but thank you for the reminder, I will have a look at it. I'm 99% sure that the housing is not the same, the engine's stock CT-9 is TINY! It's actually UNDERSIZED even though the engine is a 1.3!!!
The rest of you have done a great job of whoring up the thread where I introduced myself, so if you don't mind, keep up the good work in General Discussion and stay out of here unless you want to talk turbos.
I have no idea what you just said. Being that the engine puts out 135hp stock, it's obvious that you didn't even read my post. How a 66% increase from 135 hp (my original statement of 145 was high) equals 105 hp is quite beyond me, but then again, what do I know, right?
Originally Posted by crx304
ok..... is this a toyota starlet?
now i know that most of us do not know alot about this motor, as for internals, and how much abuse it can take, and how to compensate in fuel and timing for more boost pressure.
could the internals handle 15psi?
what kind of mgt is he using (or going to use)?
what are his goals for this car?
these things need to be considered, which i'm sure that you know. you could put a 70 trim on this bitch and it would make all the power in the world after 6000 rpm, but on the street it would suck ***!
so if you were to ask me...
i would say that a Precision sc50 would be a safe bet.
http://www.extremepsi.com/store/cust...cat=508&page=1
not that i'm underminding you or anything... but make sure that you know what you're doing before you start working on other ppl's cars. the reason why i'm saying that is because from what you origionally posted, you gave no background info on the setup. you just threw out #'s, and asked if this T28/T25 turbo would work. well of course it will work, but the real question is how well and for how long?
hope this helps!
mike
now i know that most of us do not know alot about this motor, as for internals, and how much abuse it can take, and how to compensate in fuel and timing for more boost pressure.
could the internals handle 15psi?
what kind of mgt is he using (or going to use)?
what are his goals for this car?
these things need to be considered, which i'm sure that you know. you could put a 70 trim on this bitch and it would make all the power in the world after 6000 rpm, but on the street it would suck ***!
so if you were to ask me...
i would say that a Precision sc50 would be a safe bet.
http://www.extremepsi.com/store/cust...cat=508&page=1
not that i'm underminding you or anything... but make sure that you know what you're doing before you start working on other ppl's cars. the reason why i'm saying that is because from what you origionally posted, you gave no background info on the setup. you just threw out #'s, and asked if this T28/T25 turbo would work. well of course it will work, but the real question is how well and for how long?
hope this helps!
mike
Thanks for the serious reply. Yes, that is the correct engine.
As far as the engine management and tuning, I already have that taken care of, thanks. I'm really just trying to get some suggestions on which turbo will be the best to use. By "best" I mean a turbo that will give max power above 4000 rpm, anything below that doesn't really matter much. The customer is willing to give up a level of drivability for more power. He's looking to eventually get 250 whp. (I've got some other things that will can be done at one point or another, for example it's pretty easy to stroke the engine to 1.5 by using parts from a similar engine.)
I certainly think that with proper tuning the engine will be able to handle 15-17 psi without too many issues, running 93 octane. I'll check out that turbo you recommended.
Originally Posted by Zeusfire69
Don't forget to check the A/R of the hot side too...If you go from a T25 to a T3, it will take ALOT longer to spool. The T3 turbine has a bigger housing. Find out what your A/R is for the turine on the factory turbo too, and calculate accordingly.
Oh, yeah...have you thought about a CT26, I don't know if the housings are the same or not. If they are, it would make you life alot easier. I know they used these on the turbo MR2's and the AWD Celica's...hope I helped
Oh, yeah...have you thought about a CT26, I don't know if the housings are the same or not. If they are, it would make you life alot easier. I know they used these on the turbo MR2's and the AWD Celica's...hope I helped
I haven't looked at the CT26, other than staying in the Toyota family I don't really see any reason to use it over the more common T28, but thank you for the reminder, I will have a look at it. I'm 99% sure that the housing is not the same, the engine's stock CT-9 is TINY! It's actually UNDERSIZED even though the engine is a 1.3!!!
The rest of you have done a great job of whoring up the thread where I introduced myself, so if you don't mind, keep up the good work in General Discussion and stay out of here unless you want to talk turbos.
3.0 BAR
Joined: Mar 2003
Posts: 21,468
Re:Looking for some confirmation on turbo sizing
Originally Posted by Dr Tweak
Dr. Boost:
I have no idea what you just said. Being that the engine puts out 135hp stock, it's obvious that you didn't even read my post. How a 66% increase from 135 hp (my original statement of 145 was high) equals 105 hp is quite beyond me, but then again, what do I know, right?
I have no idea what you just said. Being that the engine puts out 135hp stock, it's obvious that you didn't even read my post. How a 66% increase from 135 hp (my original statement of 145 was high) equals 105 hp is quite beyond me, but then again, what do I know, right?
I was quoting your "calculations" if you couldn't tell. I was also making fun of your dreams of gaining so much hp on such a small turbo with such a small motor, but that flew right over your head. That's ok, daddy forgives you.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Thread
Thread Starter
Forum
Replies
Last Post
