VLSD vs WELDED DIFF AT A 1/4 MILE TRACK - Moved from FWD SR

[migsk8]

ok so i drive a 240sx with a sr in it. i recently turned up the boost to 14 psi on the stock t25 and i loose traction at around 4 or 5k when all the boost builds in 1st and 2nd gear. when i first take off my tires dont spin. its only when i hit full boost. right now i have a stock vlsd and one wheel spins. im going to the track on friday to try and run a 12. should i keep the vlsd or buy my friends welded differential ? the track is going to be much stickier i understand, but should i just pay 50 bucks for the diff and be sure ?

how does the car ride, i know its easy to get sideways, but i herd the rear end skips when you make u turns and stuff.

[Kalypso]

kep the V

the vlsd has a longer gear ratio in 5th gear.

the welded diff is a crab shoot. the welds could give and your car might be a little rough to drive day to day.

[kentuckyslider]

your not gonna run a 12 witha T25.

[Tulsa_S-13]

the vlsd has a longer gear ratio in 5th gear.

Well, considering he didn't tell us which VLSD he's using, I'm assuming by "stock" he means its from a HICAS S13, meaning it would have a gear ratio of 4.08:1. A welded open differential would also have a ratio of 4.08:1. The differential does not have a varying final drive, if that's what you're implying.

If one wheel spins you either have a worn out VLSD that needs to be replaced or you're confused and actually using an open differential. I personally wouldn't throw around my luck with a welded diff and would probably try to find something along the lines of a J30 R200V.

[migsk8]

Well, considering he didn't tell us which VLSD he's using, I'm assuming by "stock" he means its from a HICAS S13, meaning it would have a gear ratio of 4.08:1. A welded open differential would also have a ratio of 4.08:1. The differential does not have a varying final drive, if that's what you're implying.

If one wheel spins you either have a worn out VLSD that needs to be replaced or you're confused and actually using an open differential. I personally wouldn't throw around my luck with a welded diff and would probably try to find something along the lines of a J30 R200V.

oops i mean open diff haha, i was in a hurry this morning on the way to school

[migsk8]

your not gonna run a 12 witha T25.

dont tell me i can't do something, i know it can be done, especially when its been done plenty of times before. maybe you should research before you tell me i can't do something, sorry to be a d!ck but i know it can be done. i might not be able to do it this time. but it sure as hell has been done before

heres just one of the many http://www.dragtimes.com/Nissa....html

[Kalypso]

Well, considering he didn't tell us which VLSD he's using, I'm assuming by "stock" he means its from a HICAS S13,

I meant J30 diff.

or save up and get a 2 way

[Kalypso]

dont tell me i can't do something, i know it can be done, especially when its been done plenty of times before. maybe you should research before you tell me i can't do something, sorry to be a d!ck but i know it can be done.

no need to argue, better to provide an example and pick his brain for more knowledge then to bust out into a b*tch fight. no one is always right, but he's certainly no fool.

dont be so temperamental.

[kentuckyslider]

Show me your time slip not someone elses. A T25 at those boost levels is nothing but a heat pump and it won't last, but good luck trying. You will need drag radials, light weight wheels, alum driveshaft, a rom tune, and a perfect launch to hit that number with a T25.

[240_SeX]

Why dont you pop your rear cover off, and weld up your open diff. If you dont like it, buy an LSD. all you will be out is a diff cover gasket and fluid.

[migsk8]

Show me your time slip not someone elses. A T25 at those boost levels is nothing but a heat pump and it won't last, but good luck trying. You will need drag radials, light weight wheels, alum driveshaft, a rom tune, and a perfect launch to hit that number with a T25.

track day was canceled until the 7th because of rain. ill let you know then

[TrukillaS14]

dnt kno much bout VLSD yet, gettin mine in couple weeks. I currently drive my 95 240sx with a welded diff. to be honest its fun as hell to go sideways but its a b**** on turns and U turns cuz u chirp hella runs ur tires down pretty quick too but as I kno it has pretty good grip on straights cuz you dnt get no slip on tires unless they bald. If you get the weld you need to drive at different angles to not get so much run down on the tires. When I get my VLSD i'm gna keep my welded diff with me just in case of competition. I prefer 1/4 though, driftin is fun but I like straights better. =]