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> Best turbo for 5S, ct-26? T3? t3/t4?
post Oct 11, 2004 - 4:01 PM
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SlowCelica94



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Ok, the ct-26 is cheap and decent. It's worthless after 8psi tho. The T3 is hear works well. But if you use that, you use lower boost levels righT? And T3/t4 would be overkill cuz u could probably get a t3 cheaper, right? Someone clue me in on what u think the ideal turby for 5s is and why.

With a T-series, would u need a new manifold or just flange?


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post Oct 17, 2004 - 1:17 PM
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shid



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QUOTE (x_itchy_b_x @ Oct 17, 2004 - 5:50 PM)
ok so blowing up my motor aside, running 13 psi on the ct-26 is a bad idea?

No, if you already know and plan for the risks, 13 psi on a ct26 is fine- it's just not economical because it's out of the turbos efficiency range- every increase of psi you get less hp- of course you still GAIN HP biggrin.gif,

The problem is, once you're out of the efficiency range the turbo has to work much harder to get you those gains (this leads to much increased turbo wear). At one point the turbo will refuse to spin any faster (I don't remember this point on the ct26) due to a variety of mechanical reasons (inlet outlet size, spool, etc etc etc) and if you up the psi past that, you'll damage the turbo. You won't hit that point at 13 psi tho smile.gif

Basically, what it comes down to is that even if you up the psi to some insane amount on the ct26 (say, 20-30) you'll probably be at the hp level of 15 psi on a bigger turbo (but your engine still has to handle 30 psi!!) Not to mention that even with a smaller turbo; it still takes a long time to build up to 30 psi. A larger turbo would spool up to the 15 psi mark faster.

After you've built up your engine to handle 20 psi- would you rather run 20 psi on a smaller turbo, or a larger turbo?

Posts in this topic
- SlowCelica94   Best turbo for 5S   Oct 11, 2004 - 4:01 PM
- - Punch   on a CT26 you can run up-to 15psi (been done) you ...   Oct 17, 2004 - 2:48 AM
- - creis   my money is on the ct26, because the manifold, dow...   Oct 17, 2004 - 3:16 AM
- - Punch   got my ct26 for $75 took it to get rebuilted ...   Oct 17, 2004 - 4:12 AM
- - orvillescelica   im sure youve read the stickies by 1bwilson and sh...   Oct 17, 2004 - 4:39 AM
- - 1bwilson   All you need to run a t3 with a 3sgte manifold is ...   Oct 17, 2004 - 4:57 AM
- - shid   The cost difference between a t3/t4 and a t3 reall...   Oct 17, 2004 - 12:25 PM
- - x_itchy_b_x   ok so blowing up my motor aside, running 13 psi on...   Oct 17, 2004 - 12:50 PM
- - Uppitycracker   QUOTE (x_itchy_b_x @ Oct 17, 2004 - 10:50 AM) ok s...   Oct 17, 2004 - 12:57 PM
- - shid   QUOTE (x_itchy_b_x @ Oct 17, 2004 - 5:50 PM) ok so...   Oct 17, 2004 - 1:17 PM
- - jgreening   QUOTE ok so blowing up my motor aside, running 13 ...   Oct 17, 2004 - 1:18 PM
- - shid   QUOTE (jgreening @ Oct 17, 2004 - 6:18 PM) QUOTE o...   Oct 17, 2004 - 1:21 PM
- - jgreening   QUOTE if you already know and plan for the risks, ...   Oct 17, 2004 - 1:26 PM
- - turboinduction   He means that the turbo efficiency between 10 and ...   Oct 17, 2004 - 1:31 PM
- - jgreening   QUOTE He means that the turbo efficiency between 1...   Oct 17, 2004 - 1:36 PM
- - shid   QUOTE (jgreening @ Oct 17, 2004 - 6:36 PM) I am al...   Oct 17, 2004 - 2:04 PM
- - jgreening   QUOTE they WILL feel great; there's no power r...   Oct 17, 2004 - 2:19 PM
- - shid   QUOTE (jgreening @ Oct 17, 2004 - 7:19 PM) As for ...   Oct 17, 2004 - 2:25 PM
- - SlowCelica94   Thanks guys, that's some solid info   Oct 17, 2004 - 8:08 PM
- - Doge   13psi is not out of the turbo's efficiency ran...   Oct 18, 2004 - 4:12 AM
- - shid   QUOTE (Doge @ Oct 18, 2004 - 9:12 AM) Point is the...   Oct 18, 2004 - 10:22 AM
- - Doge   Shid read up on turbo performance alittle more... ...   Oct 18, 2004 - 5:32 PM


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