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94 GSR motor info????

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Old 23-Aug-2005, 12:48 AM
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94 GSR motor info????
94 gsr obd-1

Does this motor have the double butterfly v-tec???

Is it the same performance specs as 1999 GSR motor?

Any difference betwen JDM and USDM??
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Old 23-Aug-2005, 03:30 AM
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Double butteryfly vtec?
Do you mean butterfly intake manifold? Yes it has one.
I believe that the jdm version has 10.6:1 CR vs the usdm's 10:1.
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Old 23-Aug-2005, 07:35 AM
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hey zeeman welcome back
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Old 23-Aug-2005, 08:51 AM
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thanks....its great to be outta camp...
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Old 23-Aug-2005, 10:32 AM
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JDM is about 180 hp, USDM is about 170 hp
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Old 01-Sep-2005, 06:39 PM
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so will this double butterfly intake manifold work if i am using a stock p28 ecu? or do i have to chip the p28 in order to activate it?

and will the stock p72 have the double butterfly active without chipping, or i need to chip p72 as well?

thanks for help guys


Originally posted by zeeman
Double butteryfly vtec?
Do you mean butterfly intake manifold? Yes it has one.
I believe that the jdm version has 10.6:1 CR vs the usdm's 10:1.
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Old 01-Sep-2005, 09:52 PM
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Originally posted by bronx
so will this double butterfly intake manifold work if i am using a stock p28 ecu? or do i have to chip the p28 in order to activate it?

and will the stock p72 have the double butterfly active without chipping, or i need to chip p72 as well?

thanks for help guys
The IAB will not work with a stock p28 (and you only can rev till 7k)
The p72 will work the IAB w/o chipping it.

My brothers GSR felt a lil weaker in the low revs with a chipped p28 not meant to control the IAB.
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