GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Interchangeable Parts?

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Old 07-11-05, 07:48 PM
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BazookaJoe
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Default Water Pump and Crankshaft Damper?

Hey! Does anyone know whether the crankshaft damper / harmonic balancer on a supra is interchangeable with a 1999 GS300 (VVT-I)?

I've been trying to search for the information and *I think* they might be interchangeable. I think the lower part of the engine has not changed (much). I know the heads are different with the VVT-I engines.

I was bouncing the idea of installing one of these http://www.boostlogic.com/parts_supraNA.html

I know -- still trying to justify the price vs. gain in performance / engine response. Opinions are welcomed.

Also, does anyone know whether the water pump is interchangeable as well?
Thanks.

Last edited by BazookaJoe; 07-18-05 at 06:07 PM. Reason: Bump
Old 07-13-05, 07:22 PM
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BazookaJoe
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To bump or not to bump?

BUMP!
Old 07-13-05, 09:47 PM
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koolaidman
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Originally Posted by BazookaJoe
Hey! Does anyone know whether the crankshaft damper / harmonic balancer on a supra is interchangeable with a 1999 GS300 (VVT-I)?

I've been trying to search for the information and *I think* they might be interchangeable. I think the lower part of the engine has not changed (much). I know the heads are different with the VVT-I engines.

I was bouncing the idea of installing one of these http://www.boostlogic.com/parts_supraNA.html

I know -- still trying to justify the price vs. gain in performance / engine response. Opinions are welcomed.

Also, does anyone know whether the water pump is interchangeable as well?
Thanks.
yes they are the same
Old 07-14-05, 05:10 PM
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BazookaJoe
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The harmonic balancer or the water pump (or both)?
Thanks!
Old 07-18-05, 05:46 PM
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BazookaJoe
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See, if the water pump is interchangeable with the supra that opens up the possibility of an electric pump. It *should* increase power by about 10HP.

My engine is up for a new water pump, the delta between a toyota replacement and an electric one is about $250. That's not too bad -- $250 for 10HP?
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