where do the extra horses come from in a b18b as opposed to a b18a?
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Re: where do the extra horses come from in a b18b as opposed to a b18a? (elmalouno)
The extra Hp is rumored to be from better cams in the B18b. I cant remeber the stock comp. ratio of either motor, but that might be another part.
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Re: where do the extra horses come from in a b18b as opposed to a b18a? (Agent#1)
cams and intake manifold
The specs on the 90-91 model 'teg are 130hp/121tq(B18A), the 92-93 is 140hp/127tq(B18A), and the 94+ is 142hp/127tq. My Haynes manual notes differences in the specs on the cams between those models, mostly in the lift.
[Modified by Speed PHreak, 1:20 AM 1/28/2003]
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Re: where do the extra horses come from in a b18b as opposed to a b18a? (Speed PHreak)
The difference is in the cams, intake manifold (bigger runners and plenum), throttle body (2mm bigger), head (bigger ports), and ECU (tuned to take advantage of all these improvements).
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Re: where do the extra horses come from in a b18b as opposed to a b18a? (StorminMatt)
Stormin is right, its really a combination of all these things. There are alot of small differences between them.
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