Transmission
05-25-2003, 02:07 PM
#11
Senior Member
Join Date: Apr 2002
Location: NASA/JSC - Clear Lake, TX
Posts: 870
Originally Posted by kahren' date='May 25 2003, 12:03 AM
stop launching at redline u should be fine, its slower anyway, learn to slip the clutch 
as for slipping the clutch, they will just kill you clutch, which is no easy matter in changing
05-25-2003, 04:53 PM
#13
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Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by Roy James' date='May 25 2003, 10:45 AM
Rotaryman13B- Yes you can use a TII transmission so long as you either change the bell housings and tail housings (use the tail shaft) i THINK that'll work, or you can do a whole conversion with the TII clutch/flywheel/PP along with a TII driveshaft and rear end and half-shafts. But, im trying to avoid all that fuss and just build a strong "N/A" transmission with stronger synchs. I dont really have a problem with the gears messing up, its the synchromesh from banging the gears.
mike
05-25-2003, 09:18 PM
#15
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Join Date: Aug 2002
Location: Eastern PA
Posts: 1,801
Originally Posted by 1Revvin7' date='May 25 2003, 05:39 PM
Have you had a rebuilt n/a tranny go bad, or were all these used?
05-26-2003, 03:44 AM
#16
Senior Member
Join Date: Jan 2002
Location: CT
Posts: 1,345
Originally Posted by Roy James' date='May 25 2003, 01:45 PM
Stop Assuming what you dont know. To be honest i have NEVER launched this transmission with a clutch dump. I dont drag race that often either, my problems are with second and third gear synchros. I have some synthetic 90W in there right now, but i forget the brand.. No matter how slow/fast i push the clutch in... if i "bang" the gears it'll scratch, which leads me to think the synchs are gone. If i shift it slow it doesnt scratch, but you cant really shift slow all the time.
Time to ask the knowledgable "Evil Forum" as you guys call it if all im going to get is "stop doing something you arnt doing and i have now idea what im talking about" responses. Thanks for those who have helped.
Rotaryman13B- Yes you can use a TII transmission so long as you either change the bell housings and tail housings (use the tail shaft) i THINK that'll work, or you can do a whole conversion with the TII clutch/flywheel/PP along with a TII driveshaft and rear end and half-shafts. But, im trying to avoid all that fuss and just build a strong "N/A" transmission with stronger synchs. I dont really have a problem with the gears messing up, its the synchromesh from banging the gears.
Kahren- Ill pick up some Redline and see if that helps any, i need to change the fluid in the rear soon anyways so when i do that ill go ahead and change the tranny fluid, flush, and put redline in. You guys know where i can get ahold of some of that around town or would i have to order it offline? I asked "AutoZone" and they didnt know where i could get any, but we all know how intellegent those people can be. Thanks
Time to ask the knowledgable "Evil Forum" as you guys call it if all im going to get is "stop doing something you arnt doing and i have now idea what im talking about" responses. Thanks for those who have helped.
Rotaryman13B- Yes you can use a TII transmission so long as you either change the bell housings and tail housings (use the tail shaft) i THINK that'll work, or you can do a whole conversion with the TII clutch/flywheel/PP along with a TII driveshaft and rear end and half-shafts. But, im trying to avoid all that fuss and just build a strong "N/A" transmission with stronger synchs. I dont really have a problem with the gears messing up, its the synchromesh from banging the gears.
Kahren- Ill pick up some Redline and see if that helps any, i need to change the fluid in the rear soon anyways so when i do that ill go ahead and change the tranny fluid, flush, and put redline in. You guys know where i can get ahold of some of that around town or would i have to order it offline? I asked "AutoZone" and they didnt know where i could get any, but we all know how intellegent those people can be. Thanks
or talking about if u go thru that many tranny, u cant have that bad of luck.
i beat the crap out of my NA but always rev match the gears, do some launches
and yet to have a problem, knock on wood
05-26-2003, 08:42 AM
#17
Senior Member
Join Date: Mar 2003
Location: Tampa
Posts: 582
The 86 GxL i drive around has had ALOT of luck with it's tranny, like i said a while back, the car was handed down to me.. it now has 212,000 the car. (not the engine lol that only lasted to 208,000) Anyway, the only problems i am having with my transmission are noisy bearings, when i downshift into second, i get a real whine/squeel sound.. i mean, it's not Terrible, but i can tell the bearings are shot
as far as the syncro's, i think their all A-ok, it doesnt grind when shifting from gear to gear, i use to get a slight grind while downshifting into 3rd, changed the fluid, and i've never heard it since.
the N/a tranny's are great, they just can't handle alot of power, 220-250 MAX, and i'm not even getting 200 at the flywheel yet so i should still be safe..
eventually i would like to upgrade to a turbo tranny, but that's still months in the making, and i'm not really worried about it..
just my 7 cents
-Markus
as far as the syncro's, i think their all A-ok, it doesnt grind when shifting from gear to gear, i use to get a slight grind while downshifting into 3rd, changed the fluid, and i've never heard it since.
the N/a tranny's are great, they just can't handle alot of power, 220-250 MAX, and i'm not even getting 200 at the flywheel yet so i should still be safe..
eventually i would like to upgrade to a turbo tranny, but that's still months in the making, and i'm not really worried about it..
just my 7 cents
-Markus
05-26-2003, 01:03 PM
#18
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Thread Starter
Join Date: May 2003
Location: Augusta GA
Posts: 16
They have all been used transmissions usually ones from the J yard. The first one the shift fork bent (???) and locked up. Then i replaced it with a J yard (J-Spec, LoL) tranny and it had slight grinding 3rd gear to start with, which quickly busted up. And now im on this one, which is grinding second and third gear synchs.
Karen- Its not HOW I LAUNCH. Obviously, every problem i have had with a transmission is in the SYNCHROS and not the accual first gear itself. And with all my stuff coming from the J yard with usually 100+K on it i would bet all i have ON BAD LUCK. I seriously doubt i shift so fast the synchs cant keep up and i just grind them down... higly doubt that. I rev match on downshifts... but they usually dont grind then anyways, my problem is WOT and i go to shift (no i dont hold the gas down either while shifting) they grind, and then continually get worse over time (a few months-6 mo) usually. I use synthetic 90W in all my trannys too, so dont go blaming it on "you dont know what you're doing you probably dont have any fluid in there". Damn, i joined this forum to rid myself of people like you (dont take that to heart), but it seems that i get better help with less fuss on the Rx7Club.com . Maybe im not double clutching right? LMAO.
Well, this transmission isnt grinding too bad, just a little in second and thrid, i think ill go get some redline and see if that helps out any.
Thanks.
Karen- Its not HOW I LAUNCH. Obviously, every problem i have had with a transmission is in the SYNCHROS and not the accual first gear itself. And with all my stuff coming from the J yard with usually 100+K on it i would bet all i have ON BAD LUCK. I seriously doubt i shift so fast the synchs cant keep up and i just grind them down... higly doubt that. I rev match on downshifts... but they usually dont grind then anyways, my problem is WOT and i go to shift (no i dont hold the gas down either while shifting) they grind, and then continually get worse over time (a few months-6 mo) usually. I use synthetic 90W in all my trannys too, so dont go blaming it on "you dont know what you're doing you probably dont have any fluid in there". Damn, i joined this forum to rid myself of people like you (dont take that to heart), but it seems that i get better help with less fuss on the Rx7Club.com . Maybe im not double clutching right? LMAO.
Well, this transmission isnt grinding too bad, just a little in second and thrid, i think ill go get some redline and see if that helps out any.
Thanks.
05-26-2003, 01:14 PM
#19
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Thread Starter
Join Date: May 2003
Location: Augusta GA
Posts: 16
It cost about 395 for a basic rebuild from Pineapple Racing. I think i can do it cheaper and not have the down time waiting for shipping each way, since this is my only running vehicle of the time. Anyone know where i can get some harder or hardened synchros? (wasnt this the sole purpose of the thread to begin with? LOL)
Thanks again guys.
Thanks again guys.
05-26-2003, 01:38 PM
#20
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
Irv Hoerr Racing has REM treatment for gearbox parts, i swear by this treatment. It eliminates all external stress risers, and completely relieves all internal stressors. Cryo-treatment is ******* hogshit , is does not work and its a scam, been there broke that.
Hoerr Racing
You can always adapt a nice MVRE STA900 dogbox to the car
Drpo them a line or an e-mail, they are in the middle of reconstructing their website, request a catalog. They have lots of go fast goodies and stuff in it.
Hoerr Racing
You can always adapt a nice MVRE STA900 dogbox to the car
Drpo them a line or an e-mail, they are in the middle of reconstructing their website, request a catalog. They have lots of go fast goodies and stuff in it.