Pics from my differential project
#1
built my own engine
Thread Starter
Pics from my differential project
trying to get ready for track day, i got an 87 TII differential unit, and a spare 5spd FD differential
unfortunately, the spare FD diff had been sitting out in the junkyard for quite many years, so the before/after pictures will be amazing
FD Diff
ewwww
unfortunately, the spare FD diff had been sitting out in the junkyard for quite many years, so the before/after pictures will be amazing
FD Diff
ewwww
#2
built my own engine
Thread Starter
as you can see, FD on left, FC on right, the TII diff assembly is cast iron and is full of clutch discs rather than fancy gear mechanisms
it is noticeably more stout
it is noticeably more stout
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#8
built my own engine
Thread Starter
FYI, full rebuild kit for a differential is $160, that includes new races/bearings, seals, and the crush piece
i am only replacing seals, as the bearings are reuseable, the diff is in the oven right now getting some wrinkle black, pics to come
i am only replacing seals, as the bearings are reuseable, the diff is in the oven right now getting some wrinkle black, pics to come
#9
fart on a friends head!!!
ive been thinking about trading with my brother. he has an s4 gtu. . . supposedly it has the lsd in it, but im not sure if theres a difference between that and the tII diff. anybody know?
paul
paul
#11
Rotary Freak
Join Date: Aug 2002
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Originally posted by rotorbrain
ive been thinking about trading with my brother. he has an s4 gtu. . . supposedly it has the lsd in it, but im not sure if theres a difference between that and the tII diff. anybody know?
paul
ive been thinking about trading with my brother. he has an s4 gtu. . . supposedly it has the lsd in it, but im not sure if theres a difference between that and the tII diff. anybody know?
paul
#12
Rotary Freak
Join Date: Aug 2002
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Originally posted by rotorbrain
ive been thinking about trading with my brother. he has an s4 gtu. . . supposedly it has the lsd in it, but im not sure if theres a difference between that and the tII diff. anybody know?
paul
ive been thinking about trading with my brother. he has an s4 gtu. . . supposedly it has the lsd in it, but im not sure if theres a difference between that and the tII diff. anybody know?
paul
#13
built my own engine
Thread Starter
Originally posted by Tim Benton
the clearance of the ring gear is crucial for it staying around for more than a month. I think the backlash tolerance on the FD is measured in the thousandths.
Think you'll be ready by Sunday?
Tim
the clearance of the ring gear is crucial for it staying around for more than a month. I think the backlash tolerance on the FD is measured in the thousandths.
Think you'll be ready by Sunday?
Tim
i should have it ready by then, if ray crowe can get me some axle seals, he was all sold out
#16
Twin Turbo LSX
I need a 3.9 gear set and would like the more stout turbo II diff.
Is there a specific year/model FC that has exactly what i need or will I have to use the ring and pinion from a FD with the second gen diff?
Is there a specific year/model FC that has exactly what i need or will I have to use the ring and pinion from a FD with the second gen diff?
#19
built my own engine
Thread Starter
if you'd read my original post, 87-88
unless you goto a reputable junk yard (www.mazmart.com) or buy new, you are likely to be sold the wrong diff and get burned
unless you goto a reputable junk yard (www.mazmart.com) or buy new, you are likely to be sold the wrong diff and get burned
#20
Twin Turbo LSX
Also,
what are the advantages and disadvantages of running the Clutch type LSD vs the Torsen LSD.
I should be making over 600ft/lbs of torque.. will that be a problem?
what are the advantages and disadvantages of running the Clutch type LSD vs the Torsen LSD.
I should be making over 600ft/lbs of torque.. will that be a problem?
#21
Twin Turbo LSX
Originally posted by 93BlackFD
if you'd read my original post, 87-88
unless you goto a reputable junk yard (www.mazmart.com) or buy new, you are likely to be sold the wrong diff and get burned
if you'd read my original post, 87-88
unless you goto a reputable junk yard (www.mazmart.com) or buy new, you are likely to be sold the wrong diff and get burned
Thanks
#22
built my own engine
Thread Starter
goto howstuffworks.com and read up on LSD's, Crispeed has ran over 600ftlbs of torque through his, on slicks, and cut 1.3 60ft times without issue
there are several other threads on this subject if you search-
https://www.rx7club.com/showthread.p...light=tII+diff
https://www.rx7club.com/showthread.p...hreadid=229115
https://www.rx7club.com/showthread.p...hreadid=270066
there are several other threads on this subject if you search-
https://www.rx7club.com/showthread.p...light=tII+diff
https://www.rx7club.com/showthread.p...hreadid=229115
https://www.rx7club.com/showthread.p...hreadid=270066
Last edited by 93BlackFD; 04-28-04 at 11:04 AM.
#24
Super Snuggles
Originally posted by 93BlackFD
Crispeed has ran over 600ftlbs of torque through his, on slicks, and cut 1.3 60ft times without issue
Crispeed has ran over 600ftlbs of torque through his, on slicks, and cut 1.3 60ft times without issue
#25
Twin Turbo LSX
Thanks jim. that's a good point. I'm not familiar with crispeed's setup.
I'll try this setup and see how long it holds up.
It's more sturdy that the stock diff but a lot less expensive than a Kaaz. Utlimately I'd like do something like an 03 cobra rear end.
I'll try this setup and see how long it holds up.
It's more sturdy that the stock diff but a lot less expensive than a Kaaz. Utlimately I'd like do something like an 03 cobra rear end.