J-spec S4/S5

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Dec 3, 2002 | 06:44 PM

RX7withNitrous

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SUPRAMAN

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From: Jacksonville, FL

J-spec S4/S5

is there that much of a difference between the S4 TII and the S5 TII. Also does anyone have any hp numbers on the j-spec TII's?

Dec 3, 2002 | 06:51 PM

TonyTurboII

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From: Currently residing in St Charles, MO

Here ya go.

Read up.

Dec 3, 2002 | 07:02 PM

RX7withNitrous

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SUPRAMAN

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From: Jacksonville, FL

yeah i know the hp of the american spec ones but if im going to heavily mod a TII engine is it really worth waiting and spending more money for 20 more hp?

Dec 3, 2002 | 07:13 PM

TonyTurboII

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From: Currently residing in St Charles, MO

If youre going to upgrade it, than no. You'll want the S4 motor since it has lower compression rotors.

Dec 3, 2002 | 07:18 PM

RX7withNitrous

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SUPRAMAN

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From: Jacksonville, FL

really that's good information thanks. I'm having one rebuilt and ported then prolly going to go with a bigger turbo and Fmic in addition to fuel of course.

Dec 3, 2002 | 07:24 PM

TonyTurboII

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If you dig enough, you'll find most rotary drag cars are running the S4 rotor, and with good reason. The compression.

Dec 3, 2002 | 07:28 PM

RX7withNitrous

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SUPRAMAN

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From: Jacksonville, FL

ya im looking for one as we speak.

J-spec S4/S5

J-spec S4/S5

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