Lsd Failure Thread

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well I'm going to probably weld mine.. and since I'm pushing around 230 or better (once I get bumped back up to 11 psi) at the ground... we'll see real quick if it holds up and I race auto-x and high speed lapping... auto-x about 3 times a month.
 
03MSPRO said:
doesn't the Quaife LSD have lifetime warranty even if raced?

if my LSD ever breaks and my dealer blames me for abuse, I think I'll downgrade to open differential since I can't afford $1200 for a Quaife :(

If you don't drop the clutch it'll be fine. The TSF unit is NOT a typical limited slip differential so to speak.

It is not designed for drag racing...
 
I figure I'll still weld it if it is reasonable to have done just from the standpoint of keeping it robust as I get more and more power out of the car.
 
TurfBurn said:
well I'm going to probably weld mine.. and since I'm pushing around 230 or better (once I get bumped back up to 11 psi) at the ground... we'll see real quick if it holds up and I race auto-x and high speed lapping... auto-x about 3 times a month.
having a welded would not affect cornering in autox?
 
I'd be having the weld done at that seam... or basically having them weld the ring gear, and the bottom and top halves of the LSD all together with one bead. They are all fixed and are the "body" of the LSD, so it wouldn't change anything about how the LSD moves or functions. Just fix things together more. It would require the weld to be broken all the way around the LSD for the failure shown in the pictures on page 2 to occur.
 
go to a service dept and find out how many rx-8s go in with problems and 6's with gas tank issues. if someone didnt dyno the car and call bs on the hp #s. you think mazda would have done anything? Ford owns Mazda and they have brushed off their bad service through Mazda. Believe it or not if there is someone above you, they will tell you how to run s***. And Mazda rushed Callaway to do the ECU and turbo design. Go look at Callaway's twin turbo vettes. Do you see the owners complaining about bad fuel maps? Tuning takes time and Mazda rushed them.
 
sam, make this thread productive and stop bitching. anyways back to my question, would the new motormounts help the LSD?
 
JDM Sam said:
go to a service dept and find out how many rx-8s go in with problems and 6's with gas tank issues. if someone didnt dyno the car and call bs on the hp #s. you think mazda would have done anything? Ford owns Mazda and they have brushed off their bad service through Mazda. Believe it or not if there is someone above you, they will tell you how to run s***. And Mazda rushed Callaway to do the ECU and turbo design. Go look at Callaway's twin turbo vettes. Do you see the owners complaining about bad fuel maps? Tuning takes time and Mazda rushed them.
Can you be any more vague about the RX-8? And what kind of gas tank issues on the Mazda6? Chances are, its owners who can't put the f-ing gas cap on right...

Ford does not own Mazda...33% is controlling interest, I don't know how many times that has to be said for people to understand. It gives Ford a limited ability to muddle in things.

Once again, did it make the car any slower with the revised numbers? Stop crying over spilt milk, Mazda fixed the situation and guess how many people returned their cars??? Not very many in either case of the Miata and RX-8. Did you even own one?

Face it, your crying about your car breaking becuase Callaway did a crappy job, they had over a year to get the car together. Over a year! Give me a break, Mazda rushed them. Mazda had plans to release a turbo version of the Protege when the MP3 was released! If Callaway can't do the job in the amount of time given, then they shouldn't have bid for the job!

I see other after-market companies do one hell of a great job in less time on their turbos than Callaway did on theirs...And compare some more apples to oranges with the Vettes...
 
I think blaiming callaway is the wrong path aswell. Chances are there was a ton of miscommunications and both sides screwed up. Mazda wanted a turbo car but totaly chained and imprisioned callaway by making them use mazda's parts bin. They didn't want to have to make anything new. Also, callaway only designed the mechanics to my knowledge. That means they did not install these turbos in all the cars that have had issues nor did they program the computer. Mazda had that duty from everything I have ever heard.

There was likely also a lot of money and scope of work BS.
 
33% is enough to have some say in their interest. Go see how many idiots flood their Renesis engines. Leaks in Mazda 6s as well, just do a search on their issues. I'm not crying about Callaway's part in the turbo. I'm in this thread talking about how CHEAP the LSD is as stated on page 1 with the quote out of SAE.com. I for one would be happy if Mazda bought my damn MSP back. I didn't pay 20k for a car to keep having problems pop up down the road and have no warranty to cover it b/c they want to say the way you drive abuses the car and that's the reason why it broke. They sold the car saying its meant to be driven.

THE POINT BEING-
We bought it not to drive like a granny so we will enjoy our cars. I don't drive it everyday like I am in the Indy 500, so they need to quit pulling that excuse to why the parts are failing.

Now back to the original intent of the thread.
WHO HAS HAD THEIR LSD GO OUT ON THEIR MSP?
 
no.. motormounts won't really do anything for the LSD... the LSD is in the motormounts and all the flexing at the CV joints will make it so there is little effect or stress on the LSD... sure some of the wheel hop is not good for the LSD as it adds shock loading, but I don't think that is the major culprit... but who knows.
 
TurfBurn said:
no.. motormounts won't really do anything for the LSD... the LSD is in the motormounts and all the flexing at the CV joints will make it so there is little effect or stress on the LSD... sure some of the wheel hop is not good for the LSD as it adds shock loading, but I don't think that is the major culprit... but who knows.

ok your wrong right there..... or maybe a little wrong... in my MX6/Probe before i upgraded mounts i blew like 4 trannies....all due to wheel hop and by saying trannies i mean open diffs(all gears were in place) all that happened was a hole in the side of the tranny ... so once i upgraded the mounts(especially the radiator mount and the firewall mount)thats the way engine shakes while working it was a different world , same thing with my VW, i even made a better pass time 1/4 mile on stiffer mounts....
 
OK im starting a new thread just for the people who had problems to post. All the other discussion stays in this thread.
 
once again, does anyone know any way to prevent this from happening, or at least make it less likely?

also, turfburn, i would like to see some pics of what you have in mind...
 
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F2TNYC said:
i blew like 4 trannies....all due to wheel hop and by saying trannies i mean open diffs(all gears were in place) all that happened was a hole in the side of the tranny ....
Holes from what??

Turfburn, I am glad you are looking at getting it welded, that is what I was thinking of doing to! (naughty)
 
I'll get pics tonight... was working on getting my JandS in last night... my car is SOOO torn apart.. and I have a race on Sunday.. damn it! LOL... but hopefully I can show you what I'm thinking of doing... looks like it'll cost me about 30-60 bucks to get it welded. Not too bad. Just as long as they do a good job!

I guess I'm surprised the motormounts helped that much... but like I said... I can see the wheel hop part of things being a problem... so that makes sense with what you said. You get a lot of shock loading to the tranny during wheel hop, and shock loading is not really ever good for any kind of metal part. So I don't really doubt at all that the motor mounts helped the tranny issue if you were blowing them during wheel hop.... the other solution is to avoid wheel hop by not powering on as much...
 
JDM Sam said:
What the guys said above^. Give it gas & no go. Heres some pics of it I took today when I went to go inspect it. POS Differential. One pic is where the differential is next to the gear its supposed to be attached to but it's not.
Do you have any clearer pictures of where it actually broke? I can't tell from those. I ask because I will want to get mine professionally welded and strengthened when I get it.
 
Clutch + Flywheel + Pressure Plate + Reverse Gear Syncro + LSD = 2300 Check to Mazda
-All blown at 23000 miles exactely


-Car was totaled 6 days after getting the car back
 
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