DoWork17

Hey all, I am looking to hear your perspective on LSD's. I have a gsr tranny in my car. I was thinking of adding an lsd with an LS 5th gear. That starts to get pricey. My next option is selling the gsr tranny and using that cash plus some of my own to find a b16/GSR lsd tranny or ITR transmission. Just hoping to get some other points of view and thoughts.

Thanks all

TunerN00b

I've never understood wanting the LS 5th in a GSR tranny. My GSR is torqueless enough in 5th that I wouldn't want a taller gear.

For LSD options, available funds and intended use would be helpful for people making recommendations. There's always the Quaife if price is no object, and an OEM LSD / Blox on the other side of the cost spectrum. Auto-x, road course, or drag usage? Aproximate whp?

DoWork17

Cheap as possible, LS fifth would be purely for higway MPG. Shooting for 190whp stock block.

TunerN00b

Used OEM LSD then. Should be able to source a JDM SiR-G LSD relatively cheap. Not sure if you'd need to change final drives to use an ITR LSD or not, but if not that would be an option.

LS 5th won't really improve mileage. My 91 LS and my 00 GSR both got 28 highway, averaging around 75mph. The biggest enemy of mileage is speed, and we drive cars designed for a country with a national speed limit of 62mph.

DoWork17

Okay I wont bother to change the 5th. My third gear is scratchy so I might replace that when doing the LSD. The ITR LSD requires the final drive to be swapped. If I run the sir-g LSD I will be able to use my factory FD, correct?

TunerN00b

I believe, but you should still confirm before buying, that the SiR-G had the same 4.4 final that the US GSR has, but with an optional LSD (so they don't all have it). The SiR-G and GSR are nearly equivalent models (just sold in different locations).

A quick Google search makes it seem that the ITR LSD can be used with the GSR final drive as well, you just need to swap over to the newer bearings.

racebum

i had the same thought awhile ago. i had a gsr box and considered installing an lsd in it. the biggest problem was the 1-2 drop and the mileage i had on it. after adding up the expenses i decided to just buy a new ITR box which tightened up the gears and added the lsd.

jturbo8316

there is always the phantom grip that'll hold 190whp easy check it out phantomgrip.com

Targa250R

jdm inc

iTrader: (11)

look into an obx one some people have had great success with them.

wunfstgsr

Theres no reason to swap a ls 5th, if you swap a jdm b16 lsd you will need the final drive as well as the 1st gear its an awsome combo in my opinion i loved it, the lsd was the only real noticible diffrence. i later swaped in a mfactory 4.9 f.d and first gear and quafe lsd to really get faster excleration.

racebum

runout is high compared to others. this can create axle problems. see the threads on obx lsd's in the transmission forum. a used oem is a MUCH better piece, m factory is better yet but expensive

DoWork17

Yeah I want to stay away from OBX and Phantom grip, I want to do this right the first time. How much is my GSR box worth? That way I could sell it and use that money plus the money I was going to spend on parts and labor to buy a ITR trans.

Thanks everyone

MFactory

If you are only going to be pushing 190whp and on a budget, then go for the ITR LSD. It's cheap (ish) and does the job fine

DoWork17

That as of now is my goal. I might go boost or h2b over the winter. I am actually torn between the three. Well considering my car is a 97 tuning and NY inspections is my biggest concern.

civic-r11

people always say bad things about the obx cause they do not know better.. i have the obx lsd, and it works fine. When you buy it. all you do it take it apart and put new washers in it, and put it back together. obx lsd is better than the stock ones, if you put in the work. but if you don't.. they will give you problems.. obx lsd's hold a lot of power too.. i use one in my 475whp integra. no problems so far!!!!!!!!

Rediness_code

hmmm....

Turbo_TONY

ive heard its pretty hit or miss with the OBX diffs...but i have no personal experience with them

boostedteg1203

I'd go with the M-Factory LSD. It's only $600 and is made with awesome quality.

DoWork17

Any one have a rough estimate what my GSR trans is worth?

racebum

400 if it's free of problems. 500 if you can prove it's under 80k miles or so and also trouble free.

every now and then a guy pops up on ebay with new in the box ITR transmissions for $1300. i know myself and another lucky soul in the R forum picked up one from him.