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11-27-2002, 01:41 AM
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#1 | |
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AF Regular
Join Date: Jan 2002
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How Much Boost?
#1 I was wondering how much boost/hp/torque/etc a stock mkII turbo car can handle;i.e. engine load, tranny, lsd, cv axles.
#2 Whats the difference of the SW20 3SGTE GEN I,II,III, IV engine; higher boost? larger t/b, higher compression?. #3 Which one has the twin entry turbo? Do you think i should swap out my stock mr2t for an entire SW20 3SGTE gen IV rear clip ($5500)? Or just build the stock one up for Street/track(not 1/4's)? thanks |
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11-27-2002, 08:49 AM
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#2 | |
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AF Enthusiast
 
Join Date: Oct 2002
Location: jamaica qnz, New York
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i can answer sum or ur questions
my boy had a 2gen mr2 turbo he ran it wit 7psi daily driven and went up 2 14psi 4 racing but if he ran 14psi all da time da cay would act up n parts wil go cause it had 140k.
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 Shift_BOOST 97 s14 |
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11-28-2002, 03:45 PM
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#3 | |
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AF Newbie
Join Date: Nov 2002
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You can run 11 lbs of boost all day in a 1993 Turbo without any other mods. Fuel cut is about 11.8 lbs on the '93 and I think 9.8 on earlier years (not sure though). With this boost level and intake & turboback exhaust you'll be a little over 200 HP or so to the wheels. With a BCC or the like and a proper running mechanical car, you can run 14 lbs max in the stock turbo/intercooler config (reliably). Chang the turbo/intercooler/clutch and the rest of the car's drivetrain can handle about 300HP to the wheels before stuff starts breaking.
If you're starting from a mechanically sound turbo model to begin with, you'd be INSANE to spend $5,500 on a clip. There are lots of things you can do with $5,000 or less on a 2.
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1991 Supra Turbo/1992 Celica All-Trac Turbo/1997 Boxster Supercharged W/ NOS |
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03-10-2003, 01:25 AM
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#5 | ||
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AF Regular
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Re: How Much Boost?
Quote:
There is no such thing as an SW20 3S-GTE Gen IV rear clip, as Gen IV 3S-GTE's NEVER appeared in SW20 MR2's. Your best option would be to get a rear clip from a 94+ JDM MR2 turbo, as it will have a Gen III 3S-GTE, which is a fair bit better than a Gen II, as it has a MAP sensor (no flapper type airflow meter), a CT20B turbo (not CT26), along with various other differences.
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"The little car that could" 94 J-SPEC MR2 GT-S TURBO Mods: Way too many to list!! 1995 FTO GPX MIVEC Mods: HKS 2.5inch exhaust, K&N airfilter, Hurricane Extractors, Unichip piggyback ECU, 18 inch Trilogy's, King springs all round SOLD  replaced by:2000 Subaru WRX 
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03-10-2003, 10:55 AM
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#6 | |
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AF - Advisor
Join Date: Mar 2003
Location: Philly, Pennsylvania
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I have 192,000 miles on my 3sgte engine (unopened) and I run 16 psi of boost on the street and 20-22 psi at the track.
This is out of a custom T3T4 turbocharger. Fuel cut is 12 psi on 91-95 US model MR2s.
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03-17-2003, 01:52 PM
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#7 | |
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AF Regular
Join Date: Dec 2001
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Go the Gen III (oct 1993 UP) if you can...WORLD of difference. My STOCK Gen III is quicker than my modded Gen II which was running 14psi plus a few other bits. Gen II's a good version BUT IF you wanna go long term go the Gen III.
Cheers KiwiMR2 |
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03-17-2003, 01:53 PM
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#8 | |
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AF Regular
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Oh and fuel cut on the Gen III is about 18psi...stock they run 13psi.
Cheers KiwiMR2 |
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