I was in a hurry to get back to work when i made that last post, and i realized i did not complete my thought. I am wondering if you have a MKII or MKIII, because the year of the car suggests a MKIII, but your engine displacement suggests its a 5MGE, which was only in the MKII (unless someone has swapped out your 7M for a 5M). This information may help other forum members give you more accurate advice on how to trim the excess fat from your Supra.
To be honest though, after reading your reason for wanting to reduce the weight, I think your time may be better spent becoming better acquainted with your engine and its management systems and diagnosing / fixing your power and reliability problem(s).
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1989 7MGTE R154 Targa Top White Package w/Blue Interior
Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels
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