North American Turbocoupe Organization



What is needed to get 20psi from ihi?
88cat Offline
Member
#1
Hey guys what do I need to make the stock ihi turbo see 20 psi of boost? thanks guys lmk
88 Cougar Bostonian
88 Cougar (351c under construction)
88 TurboCoupe
88 TurboCoupe
87 Turbocoupe: Holset H1C 25 psi, fmic,n2o,stinger header, 38mm ext wg, 3.5 exh, wms sds, innovate wb, c4 3000 stall, 3.55's, p&p head, 70mm tb custom upper intake, ported lower, Alky kit, line lock, all autometer gauges, kirkey seats
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SteveX82 Offline
Posting Freak
#2
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).]
Estoril blue 1987 TC 5spd, 148k mi, a237, Bailey BOV, spec stg3 clutch, spearco FMIC, 50 trim t3/t4, 3" exhaust, Bamafuel, LM1, 55pph
Best 1/4 mile: 12.31 @ 110mph on 25psi
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black88tc Offline
Member
#3
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.
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tps87turbo Offline
Posting Freak
#4
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.
Tony Sceia -

HIS Red 88 TC
http://turbotbird.com/showroom/data_r-z/...a_88tc.php
HERS - Blue 87 TC, fully loaded with every option, Work in Progress
87 Gray TC Parts Car - Gave to BJL and is now his daily driver
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El-Nino Offline
Senior Member
#5
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
1984 Mustang SVO
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Pete D Offline
Administrator
#6
Also a T3 at 18 psi is moving more air than an IHI at 18 psi
Pete Dunham


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Jeff K Offline
Administrator
#7
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)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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trashline Offline
Posting Freak
#8
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
Brian

www.BCPCustom.com

06 Cobalt SS
66 mustang 289 C4 handfully modded

Stingers IC install and tbird photos
http://community.webshots.com/user/trashline
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