norcalbayboy

i currently have a stock block b20b with a gsr head.

blox manifold
ctr cams
i/e/h

but im running a ls tranny

im wondering which would be better for all motor purposes...

a gsr tranny or a b16 tranny

whats the difference in the two?


thanks

Jay_Sensing

What are you wanting to do with the car? If drag racing, you can't beat a B16 tranny.

norcalbayboy

well this is my daily driver....but i want the best i can put out of this basically stock motor...


i know b16 has really short gears and gsr's have somewhat short gears.

just wondering what would be best for daily driving

del_slow420

b16 all the way.. next time search though there was a post that said the same thing like three days ago

TwinOptiX

The GSR tranny has great all around gearing and reliablity. The gearing is short enough to make use of the power and you get the benefit lower rpm cruising on the highway.

Another benefit of the gsr tranny is the ability to use the itr lsd. You can't use the itr lsd in a b16 tranny.

night

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwinOptiX &raquo;</TD></TR><TR><TD CLASS="quote"> You can't use the itr lsd in a b16 tranny.</TD></TR></TABLE>

hows that ?

tomlinson619

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwinOptiX &raquo;</TD></TR><TR><TD CLASS="quote">\ You can't use the itr lsd in a b16 tranny.</TD></TR></TABLE>
yea u can.. they are both 4.4 final drive, it should fit fine. and yes b16 tranny &gt; GSR tranny anyday

norcalbayboy

the b16 tranny will give me better 1/4 mile times than the gsr because of shorter gears?

and the gsr tranny will be better for highway?


soo in conclusion b16 &gt; gsr ?

EKHB

I used a ITR 4.4 ring gear on my ITR LSD and it dropped into my 99-00 SI b16 tranny.

b16a4

would like to know this

( o )( o )

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EKHB &raquo;</TD></TR><TR><TD CLASS="quote">I used a ITR 4.4 ring gear on my ITR LSD and it dropped into my 99-00 SI b16 tranny. </TD></TR></TABLE>

now that is confirmation right there, straight up experience

DonF

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ( o )( o ) &raquo;</TD></TR><TR><TD CLASS="quote">

now that is confirmation right there, straight up experience

</TD></TR></TABLE> Not really. An ITR LSD will not drop into a B16 tranny without getting the GSR/R ring and pinion also.

SilverCG

what abou if your running the car for boost?
would running the LS tranny be good..or b16 or gsr be the best bet? sorry for the stupid question just trying to learn.

SilverCG

also why would the LS not be the best in this situation?

doood

iTrader: (1)

from jeff evans:
"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."

stealth50k

Got a gsr tranny here with a type r bottom end with a gsr head. Oversized type r pistons and stuff . Gsr tranny is good for all around like others have said. Its reliable and you'll like the freeway rpms. Its the best of both worlds to me

all motor junkie

Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! Non-Vtec! B20, B18B with B16 tranny. FTW...