1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Aftermarket LSD?

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Old 06-23-06 | 05:23 PM
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Aftermarket LSD?

is there such a thing for an FB? or is it only possible if i swap axles with an GSL-SE axel? i heard their is a clutch type LSD. is this true. i am thinking of getting an 83 GS but wanted to know about the LSD because eventually i wanna drift it. thanks.
Old 06-23-06 | 05:54 PM
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Drifting will kill the OEM LSD quickly.

Sure you wanna do that to a nice 7?

If you want, I will try a helical LSD, clutch or viscous type worn out faster and require a tear down to rebuild.

Probably someone with more experience than me will explain further, or help you better
Old 06-25-06 | 12:30 AM
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All GSL cars from 81-85 came with a stock, multi-plate clutch LSD.The SE had the same unit,just with a lower gear ratio,which is not actually part of the LSD.The factory 4 pinion torque activated unit is very tough and with a powerful engine will still work well,despite being worn out.Its nearly identical to a Dana Spicer PowerLock,which is a renownedly tough, and sought after LSD.
You can rebuild them,but the parts will cost you 400-500 bucks to do the whole thing.Often times not all the parts need to be replaced,so its worthwhile to tear one down and do some measuring.

Drifting............
Still dont understand the whole craze......dont think its safe anywhere but on the track.....dont think a 1st gen is the right car,or should be subjected to such abuse........anyone who does perform the "sport", has no right to complain when their drivetrain starts falling apart on a regular basis.It about the most abusive thing you can do to a 20+ year old RWD axle.
Old 06-25-06 | 12:39 AM
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Well, if you wanna drift, then I will assume you have watched the 'Drift Bible'. I do believe that he states in the vid the diff needs to be rebuilt on a monthly basis. I hope you have plenty of cash reserves.

If this is a drift only and not streetable vehicle, weld up the spiders gears, and smoke away into the sunset.
Old 06-25-06 | 12:50 AM
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A "Lincon Locker" is a viable alternative to rebuilding the LSD,but even those can and do fail,often taking the entire rearend out with it.Welding the gears puts tremendous stress on the carrier and axles and the heat from the welding doesnt make the whole thing any stronger. And you can really only weld up the open diff carriers,so your stuck with the weaker single pin carrier rather than the LSD unit which has 4 pinions.
Old 06-25-06 | 12:55 AM
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After alot of mileage it will go out.
Old 06-25-06 | 02:59 PM
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thanks for the info guys. Didn't realise how much work there would be involved in the drifting aspect. Of course i would only keep the drifting on the tracks. Im not some stupid ricer. Well i dont have to much money at the molment. So, even if i end up not drifting the car because i think it will be to much time and money. Im still gonna get it cause i think an FB is really sweet looking car. =) thanks for the input guys, i'd rather you guys put me down a bit then find myself in a crazy money pit because of drifting. maybe i'lll post up puts of the car when i get it.
Old 06-25-06 | 09:44 PM
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yeah not cheap...i got a 85' gsl rear i put in my 85' gs (the rear was probably already worn....but still) after a few burn-outs and one drift event my rear acts like an open diff now and i either need to weld my stock GS rear pumpkin and put in my rear with discs or do somthing...

or get a miata pumpkin but instead get a Kaaz one so its not just a stock lsd...the guys in ATL that use them enter events and drift very very often and i dont think they have many problems with their kaaz
Old 06-26-06 | 06:10 AM
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Drifting? My question is why? Drifting is not the fastest way around a track so why bother? IMO, the only reasonable way to win a race is either being first across the finish line or having shortest time. Bringing subjective judgement or style points into a pure sport like racing is ludicrous. But then, most Gen-Xer's and younger are attracted to subjectively judged sports...which is a little bit of psychology I haven't quite figure out.
Old 06-26-06 | 06:21 AM
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Well, Drifting was just an option. i am still not sure if i am or was but why does that matter anyways. i was also thinking about rallying but i dont like the idea of abuzed the car that hard. i just really like FBs and wanted to know the option. i really didnt make this thread to be Judge or flamed for what i wanted to do, i just wanted input aobut LSD. So what if i like drifting im not doing it to race anyone or have the fastest time. i wanna do it because i enjoy it. You have your opinion tho. so, yes i agree is the fastest way around a track. but i dont think being judged on style is ludacris. its just like Skateboard but with cars, In a way, its also IMO more fun to be going sideways around a track then going fowards all the time.

but whatever i guess. it fine that you think that. just dont waste my thread space.
Old 06-26-06 | 06:24 AM
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Drifting is the figure skating of the automotive world. Good or bad, that's the easiest way to describe/classify it.
Old 06-26-06 | 08:32 AM
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Drifting is the figure skating of the automotive world.

Yep...and to each his own. I guess kids that grow up on boards are more likely to feel comfortable with somebody judging their performance. I'm an old fart that believes there is only one winner and the finish line is the only judge.
Old 06-26-06 | 09:49 AM
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Why does everyone bag drifting? It's a heap of fun and I can't wait to get into it. One thing I've noticed on this forum is that there are a lot of people who will just bag you for wanting to drift. No one asked for your opinion, we don't care if you think it sucks and it's not real racing or a real motorsport. We enjoy it and that's all that matters.
If you'd rather drive around a circuit getting better and better lap times to get your kicks, then by all means go for it but don't just hang crap on drifters for no real reason.

As for you're diff, welding shouldn't be a problem. Weld it nice and strong and if something breaks, just get a new center and weld that too. They are very cheap and odd's are your axles will go long before the diff does
Old 06-26-06 | 10:08 AM
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Why does everyone bag drifting?

Its probably a generational thing. Most enthusiasts, which means older usually, are not used to the "figure skating/skate boarding" mentality creeping into to motorsports. Racing has almost always been about having the fastest times (autox, hillclimb) or first across the line (circuit racing). However, 20 somethings and younger, have grown up on subjectively judged sports...so the difference between direct competition and subjective judgement probably is not something that would even cross the younger enthusiasts mind.

Bottom line, do what's fun but the old farts are likely to continue to "bag on drifting". As for myself, well, I promise to never bag on drifting again...don't want to hurt anybody's feelings. ;-)
Old 06-26-06 | 02:23 PM
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heh, it just bugs me how people cant except. I mean i like AutoX, i actaully wanna try it someday but i wanna try drifting too. you have your opinion and i have mine. thats cool and all, just try to keep the unessessary comment to yourself and stay on topic.

Old 06-26-06 | 02:32 PM
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To answer the first question

A Second Gen FC LSD pumpkin or a Miata (1.8 engine'd) pumpking will bolt right in.

You can buy either from the aftermarket, and go with Kaaz as the company for such. I would rock a Miata one just because their weight is closer to the weight of a FB, moreso than a FC.
Old 06-26-06 | 02:44 PM
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ok thanks, thats great info.
Old 06-26-06 | 06:58 PM
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Originally Posted by Jaye
Why does everyone bag drifting?

Its probably a generational thing. Most enthusiasts, which means older usually, are not used to the "figure skating/skate boarding" mentality creeping into to motorsports. Racing has almost always been about having the fastest times (autox, hillclimb) or first across the line (circuit racing). However, 20 somethings and younger, have grown up on subjectively judged sports...so the difference between direct competition and subjective judgement probably is not something that would even cross the younger enthusiasts mind.

Bottom line, do what's fun but the old farts are likely to continue to "bag on drifting". As for myself, well, I promise to never bag on drifting again...don't want to hurt anybody's feelings. ;-)
Originally Posted by Fc3sDreamer
heh, it just bugs me how people cant except. I mean i like AutoX, i actaully wanna try it someday but i wanna try drifting too. you have your opinion and i have mine. thats cool and all, just try to keep the unessessary comment to yourself and stay on topic.

I was not bagging drifting with the figure skating comment, merely making a comparison to the similarity in how the events are judged. I am an old one and I enjoy watching drifting, along with WRC and F1. All 3 events take a great deal of skill, not to mention money, to be competitive.

The part of drifting that bothers me, in all 3 gen sections, is the number of posts about, 'I was drifting and f...ed up such and such part on my car'. Drifting, like it ot not, takes a high degree of skill, a properly setup car and a safe place to practice. Many of the 1st time drifters ignore all 3 and hit the streets.

If you want to drift, try autocross first and learn how to control the car and set it up.

I'm not ranting, just providing advice.
Old 06-26-06 | 08:44 PM
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Originally Posted by trochoid
The part of drifting that bothers me, in all 3 gen sections, is the number of posts about, 'I was drifting and f...ed up such and such part on my car'. Drifting, like it ot not, takes a high degree of skill, a properly setup car and a safe place to practice. Many of the 1st time drifters ignore all 3 and hit the streets.

If you want to drift, try autocross first and learn how to control the car and set it up.

I'm not ranting, just providing advice.
That's the part that gets my knickers in a twist as well.

What really gets me going is that there is a Solo II club in every major and most minor cities across the continent. In my own case membership is $50 a year and each event is $10. There is no excuse whatsoever to be doing stupid *** stunts on the street when there are safe venues available that are totally affordable to anyone who owns a car. You can go to an event and drift your ******* socks off around the course.
Old 06-26-06 | 09:10 PM
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Originally Posted by Fc3sDreamer
ok thanks, thats great info.
You're welcome.

Stay safe, and have fun.
Old 06-26-06 | 09:23 PM
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Originally Posted by Tranquil
To answer the first question

A Second Gen FC LSD pumpkin or a Miata (1.8 engine'd) pumpking will bolt right in.

You can buy either from the aftermarket, and go with Kaaz as the company for such. I would rock a Miata one just because their weight is closer to the weight of a FB, moreso than a FC.
um...i dont think the Fc lsd fits in there.......
Old 06-26-06 | 09:26 PM
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Originally Posted by Tranquil
To answer the first question

A Second Gen FC LSD pumpkin or a Miata (1.8 engine'd) pumpking will bolt right in.

You can buy either from the aftermarket, and go with Kaaz as the company for such. I would rock a Miata one just because their weight is closer to the weight of a FB, moreso than a FC.
Are you sure about this? The FC NA rings are 7", the TIIs are 8". I thought the FB rings were in the 6" range. I have read the Miatas work, but I don't think the FC NA ones will.

I have an FB one torn down somewhere, looks like it's time to find it and measure.
Old 06-26-06 | 09:31 PM
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https://www.rx7club.com/showthread.p...light=LSD+kaaz

Second result from a simple search of the terms LSD and Kaaz
Old 06-26-06 | 10:49 PM
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I mean i like AutoX, i actaully wanna try it someday but i wanna try drifting too. you have your opinion and i have mine. thats cool and all, just try to keep the unessessary comment to yourself and stay on topic.

Like the other guys said learn car control and some advanced techniques before you "drift". As for the "unecessary comment" bit, well, I have to say that this is a forum and I wasn't rude so deal with it. Besides it brought out an important point about being a grown up, responsible enthusiast.
Old 06-26-06 | 11:02 PM
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yeah im not gonna go out drifting on the streets of right when i get the car. im actually gonna work on it a bit before anything because it cant pass smog. thanks for all the comments and concerns. i can understand where you guys are coming from. Im gonna go to track days Autocross, drift days(maybe just watch, since my friend would participate). Sorry if i offended anyone or something like that. i respect your veiws and input. Thanks alot.


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