Hey guys so just yesterday I installed a POSI rear end off a 4th gen...the gear ratio on it is 3.23...but now that its on there...I feel as if the car got slower...is it just more strain on my engine that it struggles to move both of the wheels....PS i have an LG4 engine w/ mods. So Im guessing that might be the culprit right there.

 

What was in it before you swapped the rear end?

 

It was open differential with what I believe had 3.23 gears. Its kinda funny because b4 the car could easily burnout with the open differential rear end..and now it struggles to burnout both tires...

 

the rear end came off a 2001 WS6 automatic

 

it is trying to turn both tires- of course it's going to have to work harder to do it. that's the whole point of a positraction differential.. but burnouts are wasted energy, anyways- now that energy is being used to move the car instead of laying a single black streak on the pavement ...

 

Yea, you have more than doubled the traction, so it's not going to spin the tires as easy. I hope you put new tires on the rear when you swapped the rear end. If the tires don't have the same amount of tread then it will cause the differential to slip all the time while you are driving it and it can damage the differential. The air pressure also must be kept equal between the rear tires.

 

you went from burning out one tire to burning out both. twice the work for the engine.

 

Trying to sell E-lockers?

 

 

ye so now I need to beedf up my engine more so that it can spin those two tires...or like everyone else says "drop a 350" Now my other problems is that my tires rub on my fendors.

 

either roll the fenders or get wheels with more backspacing.

 

alright guys this might sounds kinda dum....but how exactly do I do a burnout now since all of my 4 tires are braking now..I find it hard to get my rear tires to break loose if im holding the brakes...aka I have a manual transmission.

 

If you have a manual transmission why are you holding the brake? Just rev it up and dump the clutch!

 

ye i know that but i want to hold still while im burning out..aka to show off...LOL

 

Hurst Roll Control.

 

I just finished my swap today 3.08 open/drum>3.73 posi(auburn)/disc and left two very nice black lines on the test drive.(very tired stock L03)

How are you attempting to brake stand it(burnout)? I'm guessing your using the side-step method?

 

yes thats the moethod im attempting to use unless you got something more effective?

 

My 92 is a LO3, t5, 3:42 posi,drum and burnouts have never been a problem (except with drag radials, those were some hard launches). Tires are 255/50r16. Rev it up and dump or slip the clutch. if you want to do brake stands, try reving it up, dump the clutch then move to the brake. It's worked for me.

Back in the day it was always fun blowing away all the 3:08 open rear cars, and being able to take some 5.0's down with a LO3.

 

That's what line locks are for, install line locks, flip a switch that locks only the front brakes and drop the clutch :P

 

Could have had 3.73 rear gears in 84 if I'm not mistaken.