North American Turbocoupe Organization

Hey guys what do I need to make the stock ihi turbo see 20 psi of boost? thanks guys lmk

Did you search at all? Assuming not [Image: smile.gif]...search for "gillis". It's an adjustable boost control valve that can be bought from http://www.boostvalve.com

Also do more searching on the limitations of the ihi and the necessary precautions to take before increasing boost above stock levels.

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Estoril blue 1987 TC 5spd, 146k miles, a237, Bailey BOV, spec stg3 clutch, spearco FMIC, t3/t4 50 trim / stage III .63, 3" exhaust, eec-tuner, lm1 wb, 55pph injectors
Best 1/4 mile: 12.89 @ 106mph on 25psi, 1.78 60'

[This message has been edited by SteveX82 (edited 06-25-2005).]

it would not be wise to crank boost to 20 on the ihi because it takes the seals out i know.that and anything over 18psi is not good on them.

Quote:Originally posted by 88cat:
Hey guys what do I need to make the stock ihi turbo see 20 psi of boost? thanks guys lmk

A T3 turbo is what you need. Like Black88tc said, anything over 17-18 psi started to heat up the air & thats not what you want . [Image: biggrin.gif]


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Tony Sceia -

HIS Red 88 TC http://www.turbotbird.com/showroom/TySa_88tc.html



HERS - Blue 87 TC, fully loaded with every option, Gilies Valve, K & N Filter, 3-core Radiator, New Paint...just needs to be put back together, Interior re-done & get some exterior parts.

87 TC - Bought as a Parts Car, & will remain a parts car now that I found the blue one.

Turning an IHI up to 20 will be very detrimental to the longevity of your turbo (it IS almost 20 years old any ways [Image: biggrin.gif] ) a T-3 off of an 83-86 should be a direct bolt on, and is good for up to around 24 pounds, but, then it's the same thing with your IHI at 18, it'd be at the end of it compressor efficency, pumping out hot(ter) air than it would at lower boost levels, but, it'd be good for 20 pounds.

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Current: 99 Mercury Cougar 2.5 V-6 Duratech 5 Speed
Project Car: 1985 Mercury Cougar XR-7 5 Speed

Also a T3 at 18 psi is moving more air than an IHI at 18 psi

What is needed? Spin the IHI at about 180,000 RPM, and blow it up [Image: smile.gif]

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 23 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 04 Taurus Duratec (wifes car)

so you guys are saying that the IHI pushing 20 psi will be super heating the air corrct? and then obviously the sotck IC sucks. but what if you mounted a FMIC and ran 20 psi?since for one your getting the IC away from the turbo. and probably getting the air colder if it is front mounted. but from what ive been readin 20 psi is the limits of the IHI. my IHI is brand new and has no shaft play but i sure dont plan to run more then 17-18 psi. even after this HG is installed.

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1966 mustang
1988 tbird