madracer

Hi all,
I have a friend would like to swap his GSR Transmission for my B16A2 Transmission, both tranny is 5-speed manual, I was wondering if I should do the swap with my friend.???
I have a 2000 Civic Si with a B16A2 motor boosting right now.

Please give me your opinions.

Thank you all...

jdmztrane

It really depends on what you want. The GSR has a gear ratios that are a little longer than that of the B16 transmission.

B16 Gear Ratio
1st - 3.230
2nd - 2.105
3rd - 1.458
4th - 1.107
5th - 0.875
F/D - 4.266 or 4.400 depending on who quotes it. Helms says 4.266.

GSR Gear Ratio
1st - 3.230
2nd - 1.900
3rd - 1.360
4th - 1.034
5th - 0.787
F/D - 4.400

So as you can see, the gearing is just a tad bit longer in a GSR than a B16 trans. Do you want more acceleration, or more top end speed?

geneeunit

your b16 tranny has shorter gearing than the gsr, the b18 tranny's have stronger differentials than your b16 tranny.

its all a matter of preference really.

B18C5-EH2

The "4.26" final drive ratio for the S4C B16A2 tranny is undoubtedly a misprint. I've seen enough of them torn apart first-hand to tell you that every one of them was a 4.400FD.

This was a hotly debated topic years ago until tons of these trannies were torn apart and subsequently all found to have the 4.400FD, not the 4.26FD.

93egSLEEPER

keep the b16 tranny

batallic

gsr longer gears, b16 a bit shorter, i would keep the b16

jdmztrane

Yeah. Thats just what the Helms Manual says. I couldn't understand why Honda would make that F/D and all the others be at least 4.40

SHG_Claudio

Theres a higher demand for B16s trannies bc theyre shorter and give better acceleration but it might be too short for some. I say keep it, its not worth the hasle. His will be faster but think about it
B18C+B16 tranny= Bigger motor+short tranny=quick
B16A+B18 tranny= Smaller motor+longer gears

Its not all that different and would prob make daily driving and highway driving better and more economical but the B16 is torqueless as is so unless he puts money on top, I say you keep your B16, why **** with it if its fine now and it would be slower after.

EG6KILIN

Keep the b16 tranny

DC2-ProdUcTiOnS

iTrader: (2)

i had a GSR tranny in my B16 and i loved it....3rd into 4th was my favorite exchange....OMG....3rd screaaaamin....i believe i had carbon coated synchro's in it as well...def felt stronger (firmer) than the B16 tranny...

certainly personal preference though...especially if your going by the #'s...

madracer

ah ok, thanks guy's, I think I will keep my B16 Tranny then....I need quick accelaration to keep up with the faster car hi hi...lol.....

madracer

bump

Murk 'EM

the B16 trans is awesome i love mine except the fact i cant really drive on the eway.. my FD is 4.4 i was looking at mfactorys FD and they ahve a 4.05 that looks pretty good it really only affects 3,4 and 5 .. if you go to mfactorys website they have a "gear calculator" and you can see what your speeds and rpms will be with the gears you put in

jdm-josh

if ur boostin better for u

madracer

Which transmission you think would be better for boosting on the B16 on a 1/4 mile drag strip.????
I rarely use my 2000 Civic SI and its boosting on a small T3 turbo for daily driving even doh i don't drive it much. It pushing 7.25psi of boost right now until I put my bigger Throttle body with a bigger Map sensor and retune, then I will put up the boost some more ...
Thanks for your reply...

Jimster480

keep the b16

jdmztrane

B16 for sure. If you were making a bunch more power than what you probably are, then I might recommend the GSR. Just make sure you have a good clutch and flywheel to handle that power. A stock setup will not last long.

madracer

Thanks for your input,
I have already put in a new 6 spuk clutch and pressure plate plus I upgraded to a new Type-R flywheel instead of the stock B16 flywheel. I also put in a new clutch cylinder, throw out bearing and pilot bearing.

cadeMFjohnson

i believe the gsr would be my preference for a turbo ap. b16 tranny is ideal for n/a applications. i unfortunately have a gsr. and its got no third gear synchro. and the others are going out too. blah.

jdmztrane

You're set then. I wouldn't change out the SI for the GSR. You have a good setup right there.

hmoobhero

get the gsr...its better for boost. you stay longer in boost.

but if you were n/a than b16 is better...

jdmztrane

Its not really gong to be in boost longer. The gears are longer so it seems like it. He wants more on the acceleration end, and isn't making a huge amount of power, I'm guessing somewhere in the 300 whp range. The B16 will be better for this setup.

madracer

Yes all I want the car to do is to put down around 300 to the wheels and I'm a happy camper...
If I need to go faster then I will then buy another car and build it for racing totally. I think a 2000 Civic SI with a B16A2 boosting with A/C, Powerring sterring, and cruise control and putting down around 240 to 300 to the wheels is a great setup for a daily driven car and still a fun car to run a race with.
If I'm not mistaken a 240hp to the wheels will put you in the mid 13's in a quarter mile on the race track.??

cadeMFjohnson

all depends on weight

Lasky

GSR tranny would be much better for boost.. the longer gears will give you more traction.. my friend went from a B16 to an LS tranny and his car actually started to grab in second gear unlike the B16 tranny that would spin through 4th no problem. He was putting down 350 whp in an EG hatch just for an idea of the set-up. But if your not having a problem with traction then the B16 tranny would obviously be quicker.