what do you think?

Road race, Auto X, or the Drag Strip

what do you think?

Postby alltracst185 » Thu Apr 19, 2007 3:22 pm

i'm going to race a 1996 civic hatch with a 1995 gsr engine swap(u.s spec).my question is do you think i will beat him?i just have to put my greddy boost cut contoler in and maybe a jdm ecu for more agressive maps.(more hp)what do you think.
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Postby TheAutoholic » Thu Apr 19, 2007 3:48 pm

When I had my swap finished last July I raced an EK hatch with a a GSR swap with CTR cams. My T-vsv was unplugged and I stayed even with him at 5 pounds from 20 to about 70. 8)

At 12 psi you should pull him unless there is more done to this car.
Last edited by TheAutoholic on Thu Apr 19, 2007 4:12 pm, edited 1 time in total.
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Postby alltracst185 » Thu Apr 19, 2007 4:06 pm

(TheAutoholic )when you say swap done do you mean rebuild or did you put a 3sgte in a fwd celica?and what does unpluging the t-vsv do,where is it at in the engine bay?
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Postby jlspec » Thu Apr 19, 2007 4:15 pm

If he's just a stright swap you could beat him dragging only. I've beaten my share of swaps at the 1/8 drag strip enough. My car is stock.
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Postby TheAutoholic » Thu Apr 19, 2007 4:20 pm

alltracst185 wrote:(TheAutoholic )when you say swap done do you mean rebuild or did you put a 3sgte in a fwd celica?and what does unpluging the t-vsv do,where is it at in the engine bay?

I have a second gen 3S-GTE in an ST165. The waste gate on the stock turbo is set to 5 psi. The T-vsv is the stock boost controller and it turns boost up from 5psi to 7 psi in (i believe)3rd 4th and 5th gears only. And I don't where it is in a ST185 engine bay. Since you have an after market boost controller don't worry about the T-vsv anyway.
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Postby Conan » Thu Apr 19, 2007 4:28 pm

TheAutoholic wrote:it turns boost up from 5psi to 7 psi in (i believe)3rd 4th and 5th gears only

It's from 7 to 10-11 psi ;)
When in doubt - increase boost.
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Postby TheAutoholic » Thu Apr 19, 2007 4:53 pm

Conan wrote:
TheAutoholic wrote:it turns boost up from 5psi to 7 psi in (i believe)3rd 4th and 5th gears only

It's from 7 to 10-11 psi ;)

Maybe on a Euro spec CS it is. On a USDM All Trac its from 5 to 7. 8)
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Postby Conan » Thu Apr 19, 2007 5:31 pm

TheAutoholic wrote:Maybe on a Euro spec CS it is.

They all have the same TVSV.
TheAutoholic wrote:On a USDM All Trac its from 5 to 7.

Section 5 of Turbocharger System in 1990 Celica Alltrac / 4WD Repair Manual (RM149U) states:
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5 psi is more like a fart than boost :twisted:
When in doubt - increase boost.
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Postby Gary » Thu Apr 19, 2007 5:44 pm

In 3rd gear, no MBC, I get 7 psi when my T-VSV is capped.
10-11 psi when T-VSV is fully functional.
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Postby TheAutoholic » Thu Apr 19, 2007 7:21 pm

Gary wrote:In 3rd gear, no MBC, I get 7 psi when my T-VSV is capped.
10-11 psi when T-VSV is fully functional.

Isn't it defferent in a 93?

My motor/ecu is from a 90. As far as I have heard it should be at 5 with the T-vsv unplugged, and 7 with it working properly.
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Postby Conan » Thu Apr 19, 2007 7:50 pm

TheAutoholic wrote:As far as I have heard it should be at 5 with the T-vsv unplugged, and 7 with it working properly.

You just don't give up, do you? :D Do you have a boost gauge?
Maybe what you heard is that the wastegate starts to open at 5 but opens fully only at 7? :shrug:
When in doubt - increase boost.
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Postby jlspec » Thu Apr 19, 2007 10:58 pm

Not to sure what everyone else boost but my stock US-Spec 185 boost 5-6 psi 1&2 gear and from 3rd up it's 9 psi and then slowly drops as I speed up and the turbo is no longer needed. I understand stock it's suppose to boost 10psi but with heat and age I think 9psi is good. How do I know this, I've tried two different boost gauge with the same results. My car runs perfectly to know my knowledge and it idles perfectly even after a hard run.
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Postby CSAlltrac » Fri Apr 20, 2007 12:21 am

While we are on the subject, will it hurt me to discard the vsv?I did away with my t-vis and i was going to leave out the blue vac tank, the vsv, and the third one that is on the same bracket.I do have a HKS MBC.Any input is greatly appriciated
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Postby alltracst185 » Fri Apr 20, 2007 11:38 am

i don't have a mbc anymore and i still get 12 psi or more sometimes.i have 3" exhaust with no cats and stock manifold,anyone know why this happened?
st185- HKS exhaust, Aussie mid pipe and custom 3" down pipe, Tial 50mm BOV, HKS 272 cams, HKS adj cam gears, custom FMIC, HKS GT3040, Tial 38mm wastegate, AEM ems, fully built bottom end, RC 1200cc injectors, at 25 lbs and almost complete :D
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Postby Conan » Fri Apr 20, 2007 12:10 pm

alltracst185 wrote:anyone know why this happened?

Welcome to the world of boost creep :)
When in doubt - increase boost.
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