just wanna know what you guys with 5sfe turbos are running your boost at with stock internals...???
312whp with more to come....
312whp with more to come....
turbo 5sfe - 6G Celicas Forums
312whp with more to come....
well, it depends on the setup and the amount of tuning and how many and what kind of miles the engine has
but because its on the higher side of CR's, i dont think any higher than 10psi would be good.
and even at 10psi im sure it would shorten the life span a good amount depending on how it is driven.
but because its on the higher side of CR's, i dont think any higher than 10psi would be good.
and even at 10psi im sure it would shorten the life span a good amount depending on how it is driven.
1994 Celica GT4 WRC Edition@gt4.wrc on Instagram
Guys at celica.net are SUPPOSIDELY running at 13 on stock internals. I wouldn't trust higher than 8.
im running 8 now....
312whp with more to come....
ice, with a CT26 you're not gonna get good gaisn above 8 psi anyway :/
got ya.....
312whp with more to come....
youre at 8psi non intercooled?
get an intercooler before you think about raising the boost
get an intercooler before you think about raising the boost
1994 Celica GT4 WRC Edition@gt4.wrc on Instagram
Im running 10psi intercooled but i have hit 14 before on stock internals!!!!
99 Toyota Tacoma
its not if you can rund 10 or 14 or 25psi. the question is how long will the motor will last.
i honestly think that 5-7psi should be the max and even then its still trial and error.
i honestly think that 5-7psi should be the max and even then its still trial and error.
15PSI - 30MPG - Megasquirt Tuned
i been running 10 for 3 months now and it was 5-8 before that and i elieve 10 is safe with the rght mods such as injectors, fmu/safc/fuel pressure regulator and 2 bar map!
99 Toyota Tacoma
.. and a fuel pump. your car will explode if you run over 12 for very long on stock internals.
ask nuke with the right mods 15 psi everyonce in a while isnt going to hurt.....Im not sure about the older celicas but my 99 has a knock sensor and that will tell you when your running lean but i would say 15 is ass high as would go on stock internals.................... >
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99 Toyota Tacoma
i wouldn't go above 6psi w/out an i/c, and w/ one w/ stock internals, i'd stay around 9-10psi.
15psi is hella high and even I wouldn't do much more than that when I get my car back on the road. I think Im going to call it quits at about that or so. 10psi fpr daily driving tho.
Member of Team 5sfTe
y do you say after 8 psi the ct26 wont see much more gains. theres a huge diff when i have my ct26 at 8 vs 15. (not saying u should go that high just saying the ct26 doesnt die at 8psi)
o and i have a 3s not a 5s
o and i have a 3s not a 5s
Four, go get it dyno'd. This isn't some magical mystical claim, it's a bitching point of every gt4, alltrac, mr2, supra with ct26 etc etc etc etc. After 8 psi, the ct26 is no longer in it's prime efficiency range (if you can find one, take a look at it's graph). One might see a 15 hp gain going from 7-8 psi, but then only a 13 hp gain from 8-9.. then only a 12 hp gain from 9-10. You get the idea. Of course there's a difference between the 8 psi and 15 psi, and of course you're going to see gains; but compared to a different turbo thats made to handle above 8 psi (like a T3 or T4), they're way below standard.
-shid+Jun 25, 2004 - 8:21 AM
Uhm, no, thats not true at all- not when you could just buy another turbo for the same amoutn of money and get BETTER gains.
The CT26 has POOR gains. Not GOOD gains, POOR gains past 8 psi on a 3sgte, and possibly around 7 on a 5sfte
The CT26 has POOR gains. Not GOOD gains, POOR gains past 8 psi on a 3sgte, and possibly around 7 on a 5sfte
any gains are good and will be felt, and i doubt rasing the boost 1psi higher than stock on a ct26 will bring 15 more hp with out a lot of other mods
i think after 15psi is where the ct26 is useless
a ct26 works better on a 3s than a 5s due to the difference in displacement
i think after 15psi is where the ct26 is useless
a ct26 works better on a 3s than a 5s due to the difference in displacement
1994 Celica GT4 WRC Edition@gt4.wrc on Instagram
-shid+Jul 3, 2004 - 11:53 PM
But they're not GOOD gains. Good gains is gains within the efficiency range of a turbo, getting the max hp out of every psi- do you get what I mean? I'm not saying that the ct26 won't gain as you pile on the psi (although I've heard it does almost NIL past 15); just that it's no longer a good gain compared to gains within the effiency range of the CT26 turbo
not to hijack, but sinse where on the topic, is it safe to run a turbo by its self, without the timer/controler and what kinda psi would it push?.
edit: I mean average psi, i know that the psi would bounce around with the rpm's but i mean at an average.
This post has been edited by creis: Jul 5, 2004 - 9:06 PM
edit: I mean average psi, i know that the psi would bounce around with the rpm's but i mean at an average.
This post has been edited by creis: Jul 5, 2004 - 9:06 PM