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VTEC conversion

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Old 10-29-2003, 11:21 AM
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Default VTEC conversion

Hey my friend is looking at going VTEC to his 91 Prelude Si. I'm assuming since its a B series motor he can just swap whatever head he wants (plus wiring, etc.) Input please?
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Old 10-29-2003, 01:30 PM
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91 preludes are bseries?
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Old 10-29-2003, 01:32 PM
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its actually a B20z1 or something but they're nowhere near compatible with B18s, B16s, etc... and no it's not the same as the motors that come in CRVs either.
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Old 10-29-2003, 01:35 PM
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i needz dat in mah life.
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Old 10-29-2003, 01:51 PM
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sell the car and get a new one its not worth it in an old lude
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Old 10-29-2003, 02:17 PM
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*cough* 4th gen *cough*
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Old 10-29-2003, 03:09 PM
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You can do a b20VTEC on the motor. The blocks are probably the worst B-series ever made though.

www.ludespeed.com used to have a write up on it, maybe it's still there.
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Old 10-29-2003, 06:13 PM
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thanks nate, you and your sell out gti, but its so HOT!!!!!!
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Old 10-29-2003, 08:31 PM
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b21a1 is the engine and they are toqure monsters for a stock engine
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Old 10-30-2003, 02:40 AM
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Originally posted by 92hatch
b21a1 is the engine and they are toqure monsters for a stock engine
i was unaware 130-140ft/lbs of torque put a car into "toqure monster" territory.
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