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okay, well, evry supercharger topic on here states that if you superchargs an automatic, it will shorten the life of your engine, so it would be better going with a turbo. HOWEVER, on the turbo threads, it says it will shorted the lifespan of your engine also. SO, in the long run, which one will be better, as in, which will will i have my engine last longer? also, is this counts for anything, im getting the Injen CAI from Ken, if thats going to play a role in this. thanks....


***oh, here are the searches, i'll save you guys the trouble. i just want a CLEAR answer and a CLEAR explanation. thxxxxx

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It doesn't shorten the life of the engine because its an automatic it shortens the life of the transmission because of the increased stress to the whole system. The engine life will be decreased equally no matter which tranny you have. This applies to both a turbo and a supercharger. Because the only supercharger that is available is making considerbaly less power than the available turbos I would say it would produce much less engine degradation but I'm no expert.
 

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There's no way anyone can predict the lifespan of your transmission. It is highly subject an array of variables far beyond the estimator's control.

Plissken is dead on the money about engine life. Part of the reason the TRD supercharger has a warranty is because they've done enough analysis to determine the boosted configuration will not result in massive warranty claims. More boost than the TRD configuration will undoubtedly increase wear.

That's as much as we know for certain right now. The only way to know what will happen to clutches and gearboxes is to see what happens when the superchargers are fielded for a couple of years.
 

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Originally posted by lo bux racer@Aug 28 2005, 11:19 AM
There's no way anyone can predict the lifespan of your transmission. It is highly subject an array of variables far beyond the estimator's control.

Plissken is dead on the money about engine life. Part of the reason the TRD supercharger has a warranty is because they've done enough analysis to determine the boosted configuration will not result in massive warranty claims. More boost than the TRD configuration will undoubtedly increase wear.

That's as much as we know for certain right now. The only way to know what will happen to clutches and gearboxes is to see what happens when the superchargers are fielded for a couple of years.
Where do you guys find any official information on the supercharger from TRD that has a warranty? I'm interested in this and I have searched. Maybe I overlooked it.
 

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because it's from Toyota/TRD... they aren't gonna make a product for your car & not warranty it... especially if it's a dealer option.
 

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the actual HP gain from the TRD SC is so small that i would not expect any tranny issues above and beyond normal wear and tear.
that may be 1 year or 10 years, all depending on how you drive.

i had a factory Supercharged 94 T-Bird w/ 230HP & 330TQ
the tranny lasted 9 years before needing a rebuild. . .
 

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Ask people on the matrix forum that run TRD SCs on auto 1zz corollas and matrix cars. I put a little over 30K with SC before I sold my auto matrix - did not see any abnormal wear / malfunction. If you don't something stupid and try to squeeze more hp from the SC with smaller pulleys, instakes, fuel controllers you can definitely expect 5+ years of fail-free operation. Something stupid also includes neutral drops and any other transmission abuse.

I think if you get extended 7/100 warranty before you hit 36K on your tC you can get your stuff fixed for free up to 100K miles. And if toyota is offering this kind of stuff, there is a good chance they are confident that this setup will last that long on its own.
 
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