crx-mike

I've been thinking about diferent setups to use on my 97 hatch, and i want to start off with something not too exspensive, but upgradeable later. I was thinking either a B18B with an Si(SiR here) tranny or B20 with an Si tranny. Now i know the bigger displacement is an obvious advantage, but will the lower redline of the B20 be a problem when using a close ratio tranny like the Si tranny??

P.S. I plan to go turbo later on down the road, once i've saved up enough.... (and i know the LS is a better tranny for that) but for now i'd like the Si tranny for better acceleration.

TIA
/\/\ike

rainforest

no it will just rev quicker. no prob there. just sustaining the mad high revs where your rotating mass is spinnging higher that usual will f you up.

#417R

From personal experience I would go with the B20 of course. But I would not use the Si tranny for a B20. Unless you like turning 4200 rpm at 70mph. Plus if your gonna go turbo one day soon I would with a 95 and up Gsr tranny. That's what I have and that way you'll still have some get up and go without forced induction. Good luck in your decision.

from_zer0

Yup. The GSR is the compromise between the two. (LS & Si/R)

You'll still have decent N/A acceleration, but the gears are slightly longer than the Si, beneficial for when you go FI.

crx-mike

Hey i have another question, that i'm having lots of trouble finding the answer to. And it's on the same topic so i figured i'd just use the same thread. NOw i've been told that no ecu's will idle the B20 very well, and that it will idle really low unless i get a chipped ecu or something. What are you guys using? not B20/vtec just stock B20 with Ls intake manifold.

Thanx again!

#417R

I'm using a 94 LS Ecu and have no problems at idle. The only problem I have with the ecu is that it likes to run the b20 a little lean at partial throttle.

daver

b20zkid

by part throttle do you mean cruising throttle like 3K? Is it a "bad" kind of lean as in damaging? How about WOT, any leanness there?

thanks, It looks like i'm in the immediate market for a budget b20 setup as my trusty old '90 integra engine decided to squirt coolant out of the side of the head today. I don't have the moeny for a chipped compute and i'm hoping that my '90 LS ecu will suffice...

#417R

It really depends on throttle postion more than rpm. Good luck with the swap.


[Modified by b20zkid, 4:36 AM 4/12/2002]