josh green

I have a turbo hatch and I broke my GSR tranny and have now got a 99-00 SI tranny with an LS final drive and a Quaife LSD. Can anyone tell me how different the SI gear ratios are to the GSR ones? After driving it with both, they both feel about the same except for the LSD. Both my trannys have had a LS final drive. I was just wandering if the gears are shorter and which ones GSR or SI. Also now that I have an LSD tranny will I be as likely to break my tranny like I did my GSR one? My GSR tranny I ripped the differential out of it or something b/c the spline in the tranny you can slap back and forth in the CV axle holes. Im just wanting to knwo if the lsd tranny will be stronger... I broke my other tranny wheel hopping at the track. This tranny dosent seem to wheel hop at al as far as I can tell. Thanks for your inputs.. Hopeing to tear down my old tranny and learn to rebuild it.

i3lazedx

pretty sure the si tranny has short gears

cnyej1

yeah shorter im pretty positive

josh green

I have tried looking up gearspeed but I cant find their site. Anyone know where I can get beefy tranny internals to put together myself or have it sent off? I would rather do it myself though. People tell me that 415whp is going to kill my new tranny... It should hold the power better than the non LSD one shouldnt it?

Andres-eh2

you should look into an LS tranny for a turbo motor. The Si tranny will be in boost less time before you have to shift. And yes the Si gears are shorter than the GSR's.

murtnabila

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Andres-eh2 &raquo;</TD></TR><TR><TD CLASS="quote">you should look into an LS tranny for a turbo motor. The Si tranny will be in boost less time before you have to shift. And yes the Si gears are shorter than the GSR's.</TD></TR></TABLE>

josh green

yea I know I need an LS tranny but I busted my old tranny and a guy has a SI tranny with LS final and quaife LSD with 3K on the tranny for $1000... I know I need longer gears but I didnt have the time to rebuild mine and thats a good deal on that tranny.

murtnabila

A good deal is garbage if it's for something you really don't need. IMO.
Plus ls trannies are cheap throw an lsd on there you should be under a grand.

josh green

well I broke my tranny and needed one asap to drive my car to school and such and I got it. Its not like I cant put the LSD in the LS tranny. I realy want a tranny that will hold 400+hp but I dont know who has them or whatnot.

hatchling37

You built your car to 400+ HP and you don't know about trannies? Ouch. Just take it to your local shop and have them work on it. In the meantime, get a rental Neon and rally that ******

murtnabila

who has them??? Get an ls tranny in good shape, plus it's usually the differential that breaks. If you want more beefy and don't mind spending some money get the internals some cyrogenic treatment and if you wanna get some new syncros get them treated as well. I think it's around 2.50/lb though.

josh green

I bought the car from a guy I know... He is a member on here His name is shawn and his name was "boostedhatch" or something like that. I wanted a fast car and didnt have time to build one so I bought this one and in the next year I plan on building another motor... But does anyone know where to get beefed up tranny ****?

murtnabila

just told you what you need to do. But sounds like you got a lot of money and just want a beefed up tranny. Well in that case hit up http://gear-speed.com/

josh green

no I dont have alot of money.. I just HAD a chunk saved up and bought the other tranny. Im a senior in highschool working 40hrs at $5.75 an hr.

murtnabila

Well ne and all choices are already given 2 u. Just pick one

nuc79

Hey, I remember riding in your hatch the day you and your buddy went to ATL to pick it up. July2nd I believe... I bought your buddy's USDM P30 that day, and you had to go to work.

Anyway, you busted the tranny already? That's what happens with 416whp, lol. It's a far cry from your old lude, isn't it?

If you want to get rid of that busted GSR tranny, let me know. I'll take it off your hands for reasonable price.

And also, if you want to go GSR tranny again, I have one I'll sell. I'm getting ready to install a LS 5th gear in it, so it'd be great for cruising to the track in 'Bama....

But after riding in your hatch, I think you could benefit from an LS tranny too, with that giant SC61 on your car...

nuc79

check here for the ratio values you were looking for:
http://allmotorhonda.com/techpages/B...anny_specs.htm...


Modified by nuc79 at 3:47 PM 8/12/2004

ProJectCvic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 &raquo;</TD></TR><TR><TD CLASS="quote">and fyi: LS final drive=GSR final drive= 4.4

Somebody was blowing smoke up your ***....

check here for the other ratio values you were looking for:
http://www.hondaswap.com , under 'reference'...</TD></TR></TABLE>

beat me to it . USDAM s4c have the same final drive as ls too...4.4. You'll regret it. Get the ls. $1000..is not that sweet of a deal.

300-500 for ls tranny
800 for quaiff lsd
_____________
1100-1300 w/ lsd installed your self (not that hard) and a in your face.

nuc79

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

beat me to it . USDAM s4c have the same final drive as ls too...4.4.</TD></TR></TABLE>
Actually, i think i was wrong, that's why i edited my post. I believe LS FDs starting in 1994 are 4.266

90-93LS's are definitely 4.4 tho

ProJectCvic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 &raquo;</TD></TR><TR><TD CLASS="quote">
Actually, i think i was wrong, that's why i edited my post. I believe LS FDs starting in 1994 are 4.266

90-93LS's are definitely 4.4 tho</TD></TR></TABLE>

Yea the 94+ ls are 4.266. I when back and check. I broke my b16 tranny differential awhile back ago and have to replace another one. Upon searching a differential i found an ls differential with the final gear and speedo gear install. Comparing the b16 final drive and the ls final drive...they are the SAME....number of teeth, size, diamential pitch, etC. This made me think that the ls and the b16 tranny have the same final drive.

I think in reality the my seller must have mistaken and sold me a b16 differential or have modify his ls differential.

Yea..you are correct 94+ ls are 4.266 fd....checked two source.

95GSRTT

So how well would it work to through like say a GSR final drive into an LS tranny? They have the same 1st and 2nd, and 3rd and 4th are longer which would be a bit better for say boost. Am i correct in this? and has anyone done that?

nuc79

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95GSRTT &raquo;</TD></TR><TR><TD CLASS="quote">So how well would it work to through like say a GSR final drive into an LS tranny? They have the same 1st and 2nd, and 3rd and 4th are longer which would be a bit better for say boost. Am i correct in this? ...</TD></TR></TABLE>

Yes that's correct. and then you could just tell everyone you have a GSR tranny with a LS 3rd thru 5th, and get more money if you ever decided to sell it. Not like you'd be scamming, because "technically" it would be true.

And i'd imagine there are some people that have done it. There are a lot of 2nd-hand GSR FDs floating around I bet, from people that swap in the 98+ specR FD.

In fact, i have a friend with his old leftover GSR FD set, now that I think about it.

I guess it's time to start looking for an LS tranny to test your theory....

95GSRTT

Ya, it sounds like a great idea I think, but really havent heard of anyone ever trying it. Maybe Ill just replace the synchros in my ls an throw in a GSR final drive. See how that works out. If I do, ill definately let you guys know. Anyone else know if this would work good or know of anyone doing it?

Shaun

longer LS tranny better for boost theroy

95GSRTT

I dont think that the longer boost theory is correct, as I know shorter gearing will always accelerate faster. But with the LS tranny the 3rd and 4th are a bit longer for highway cruising and what not. I dont wanna have to be at 4500 rpms at 85 mph.