hello i am wondering what is the best b series tranny for na setup. and also wat is the best b series tranny for turbo setup. if you write something like s1 or s80 or something please specify what engine it comes with and for which application you are talking about. thank you

SEARCH!!!! But since I am so nice here is you answer.
Gear ratios are merely a way to trade torque for rpm. With a higher numerical gear ratio, you are putting more rpm at the wheel. With closer gear ratios, you are able to stay at a higher rpm in between shift points. Something like the LS transmissions are suited more towards the broad torque curve/low reving LS engine. It keeps you in the peak torque area in between shifts. The ITR/SI/GSR transmissions keep the rpm's built up in between shifts, to stay in the more peaky powerband.

Having said that, for the track the itr/si tranny is the best hands down. Most high whp turbo engines are operating between 5.5-9k, and having their shift points in between. In combination with a tall slick size (24.5"+), and the high shift point (8.5-9k), you are able to keep the engine operating within the optimum torque curve.

With the LS transmission, between shifts it would possibly drop you out of the optimal powerband and therefore make you slower. Gearing simply put allows you to stay in the powerband of your engine in between shifts.

The myth that you stay in gear longer with the LS transmission makes you faster is purely false. Think about that statement for a second. Acceleration is the measure of velocity over a unit time. Watching the rpms climb on the tach during a 3rd/4th gear pull, they would be climbing slower than with the si/itr tranny. Looking at the definition of acceleration as a measure of velocity over a unit time, the engine would be getting to the same velocity over a slower time lapse. This would yield slower acceleration, and simply put make you slower.

Having said that, the gsr transmission is probably the best balance of a street/strip transmission. The gearing is a little less aggressive as the itr/si transmissions, which will yield a little more traction. For all out acceleration si/itr tranny wins hands down. For a slower car, go with the LS transmission.

It also depends on what you want to do with your car; drag racing or autocross.

ok thanks a lot 97integrals.....one more question....i think i am gonna go with the gsr tranny but how will that do on an h22 motor?? and how is the h22 tranny?? im assuming that the ls tranny isnt a good idea for a turbo setup. correct me if im wrong. thianks

ok thanks a lot 97integrals.....one more question....i think i am gonna go with the gsr tranny but how will that do on an h22 motor?? and how is the h22 tranny?? im assuming that the ls tranny isnt a good idea for a turbo setup. correct me if im wrong. thianksb-series tranny's don't fit on h-series motors, and yes a ls tranny is not good for boost, or anything but highway driving.

Well...technically you could put a b-series tranny on an H-series block, but you'd need an adapter plate (good luck finding one and saving up the $ to buy one when you do). So unless you want to spend a ton of $, you're stuck with the H or F series trannys.
And for the love of god actually BUY a car before asking about turbos and swaps. For the past few days you've asked about Civics, Accords, B-series engines, H22's, B-series trannys, turbos, etc. Buy a car, SEARCH for info, and then ask more specific questions that haven't been covered a million times. Bad newbie, bad :nono:

lollllllll.........well thanks but im so hyped i cant wait... i wanna kno EVERYTHING....lol......well i will take ur advice......in the end i just wanna be able to keep up with my brothers g35