Thermostats
What would be the difference in installing a 180 degree thermostat instead of stock on an 86' T/A with a 350? How will this change the performance of the engine, etc.?
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-Dan
1986 350 TPI Trans Am, 700R-4, Flowmaster exhaust, CAI, 180* t/stat, low temp fan switch, SFC's....Sold.
Project Status: LT1 disassembled, researching costs, searching for project car.
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The stock one was 180F.
The one people install aftermarket is a 160F thermostat. When installing a 160F thermostat it is necessaary to reprogram the computer to turn on the fans at a lower temperature as well. In your car that would mean having a different PROM burned for it.Tracy
2002 C5 M6 Convertible
1994 Z28 M6 Convertible
Current Mods:
SLP Ultra-Z functional ramair, SS Spoiler, STB, SFCs, Headers, Clutch, Bilstein Shocks, and TB Airfoil. 17x9 SS rims with Goodyear tires, 160F T-Stat, MSD Blaster Coil, Taylor wires, Hurst billet shifter, Borla catback with QTP e-cutout, Tuned PCM, 1LE Swaybars, 1LE driveshaft, ES bushings, White gauges, C5 front brakes, !CAGS, Bose/Soundstream audio, CST leather interior, synthetic fluids
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I don't think he would necessarily want the 160degF t'stat with his 86. The stock 'stat is probably 196degF, so the 180 would be lower, and probably better suited to the "conventional" coolant flow in his engine. He could also alter the fan on/off temperatures with an external add-on coolant switch.
In general, the lower coolant temp will reduce inlet air charge temperature, and allow you ao add a degree or two of timing. That might show up as a small HP gain, with no impact on driveability. On the other hand, it MIGHT also produce a very slight loss of fuel economy, and a very slight increase in emissions.Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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