Does a shorter geared tranny yield more lag or less boost in lower gears?

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Oct 17, 2007 | 08:24 PM

a1320honda

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From: Spokane, WA, USA

Does a shorter geared tranny yield more lag or less boost in lower gears?

Ive got a Holset HX35 16cm housing that was on my B0 with the LS tranny. I was pushing about 4-5psi in 1st gear just rolling into it and when i hit 2nd 17psi was there and ready to go, unless i launched on the 2-step then it was tire frying time. So i blew the headgasket on the B20 (and possibly a ringland) and im putting in a full OBD1 B16 swap tranny and all. So with less displacement and a much shorter geared tranny, what kind of boost should i be looking at. I wanna be around 12-15psi. But i just dont even know if im gonna make bost in 1st and 2nd. Any input?

Oct 17, 2007 | 08:45 PM

CoreyR

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Re: Does a shorter geared tranny yield more lag or less boost in lower gears? (a1320honda)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320honda »</TD></TR><TR><TD CLASS="quote">Ive got a Holset HX35 16cm housing that was on my B0 with the LS tranny. I was pushing about 4-5psi in 1st gear just rolling into it and when i hit 2nd 17psi was there and ready to go, unless i launched on the 2-step then it was tire frying time. So i blew the headgasket on the B20 (and possibly a ringland) and im putting in a full OBD1 B16 swap tranny and all. So with less displacement and a much shorter geared tranny, what kind of boost should i be looking at. I wanna be around 12-15psi. But i just dont even know if im gonna make bost in 1st and 2nd. Any input?</TD></TR></TABLE>

it will make boost fine with the b16 gearing, probably not so much in 1st because its such a short gear.

Oct 17, 2007 | 08:46 PM

a1320honda

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From: Spokane, WA, USA

Re: Does a shorter geared tranny yield more lag or less boost in lower gears? (CoreyR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CoreyR »</TD></TR><TR><TD CLASS="quote">

it will make boost fine with the b16 gearing, probably not so much in 1st because its such a short gear.</TD></TR></TABLE>

But 2nd and up should be fine?

Oct 17, 2007 | 08:54 PM

Ramma

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From: Stratford, Ct, USA

With a b16 tranny and boost, you should be burning up the tires in first and second. In my car, type r with an 18g at 22lbs of boost, i just kinda roast first and second, and catch traction somewhere in third. You should have no problem with the b16 tranny, no boost lag, just running out of gears quicker.