LSD Failure = new found love **no 56k**

[MSPRO]

Well yeah my LSD failed and I upgraded my car... Just got past the break in period yesterday and I fell in love with my car all over again. It feels like a totally different car, a lot more solid and stable. All I have to say is thanks Mazda for using a crappy LSD lol ..

Stock Clutch -47k miles
http://amykdean.com/albums/fiasco-pics/stock_clutch.jpg

new clutch

http://amykdean.com/albums/fiasco-pics/new_clutch.jpg

stock motor mounts and clutch line
http://amykdean.com/albums/fiasco-pics/stock_motor_mounts_clutch_l.jpg

new motor mounts
http://amykdean.com/albums/fiasco-pics/new_motor_mounts.jpg

Stock LSD
http://amykdean.com/albums/fiasco-pics/stock_lsd_broke.jpg

new LSD
http://amykdean.com/albums/fiasco-pics/new_lsd.jpg

So yeah in case you are wondering I ended up going with a Spec Stage 3 Clutch, AWR F/R motor mounts, Quaife LSD, CS SS Clutch line, and all synthetic fluids.......... All I have to say is. man this thing pulls harder at stock boost then it was at 10psi b4....At 10psi its scary, no more torque steer it just goes. (rockon)

[RyanJayG]

congrats... you should be able to really launch now. (thumb)

[MSPRO]

lol thanks .......i haven't tried...and i didn't really launch b4..the LSD broke when I was just cruisin on my way to the store..... I am kinda thinking it might have had something to do with the big pothole that I hit on that side the night before...oh well lol

[RyanJayG]

yeah, maybe... does it feel any different (the lsd)? I know the clutch will hold way better, and the clutch line will make it snappier, but what about grip?

[MSPRO]

the grip is awesome...around corners its more stable and feels like its stuck to the ground ...and like i said before the torque steer is almost totally gone which is worth it i guess ....

[MSP#735]

hell yea man, congrats bro!!

[YellowSpeed1229]

nice nice..... just out of curosity.. mazda would not cover it under warrenty?

[Mr. Win]

nice set up... what did that set you back?

[RyanJayG]

hell yea girl, congrats!!
*fixed* ;)

[MSPRO]

haha yeah im a girl lol ...............it wasn't under warrenty b.c i have a unichip, fmic, intake, mbc, a bunch of other stuff and 47k miles lol .............all in all with parts, labor , and overnight shipping on everything it cost me around $2350.

[Mr. Win]

i just meant parts... but yea im think ing no lsd for me then hah i do want that clutch though.

[Dexter]

...mother of god...

*picks up jaw*

Ahem. Sorry.

[MSPRO]

well i got my LSD for like half price from Tri-Point Engineering...It was installed in one of their back up trannies for the world challenge cars before they switched to the modified rx7 lsd... I paid 750 for the LSD and bolts, normal price is 1550 lol....the clutch was 359 before shipping, motor mounts were 140, clutch line 20 and fluids were another 50 or so .oh and another 300 in parts that had to come from mazda like seals, bearings and little stuff that got taken out when the lsd broke...........So for just parts the total was around $1550 the rest was labor and shipping ..

[Delivery_Guy]

Don't suppose they have another one of those LSD's laying around do they? If so I call dibs, lol. So I guess the question is, would the quaife be worth it if you had to pay full price. In your opinion of course.

Sorry to hear about the break down, but it does seem like with stuff like this, you never replace it until you have to.

[MSPRO]

in all honestly ...i would probably pay full price if i had the money laying around ...i haven't really pushed the car to much and the traction difference is very noticible.......even my service manager drove it and begged me to bring it back for him to check out when its been broken in a little more ...he agreed that it felt stronger at stock boost then it did at 10psi b4...


as far as tri-point having more of them around... I'm not sure but give them a call... 818-348-5385 and ask for mark.

[GearSlammer]

your car feels faster by changing drivetrain parts?

[daedalus]

your car feels faster by changing drivetrain parts?


I'm also intrested in this? Why would this be? Does it just feel faster b/c everything is more stiff and solid? I cant belive there would be some massive difference in the drivetrain loss, etc.

[MSPRO]

I'm also intrested in this? Why would this be? Does it just feel faster b/c everything is more stiff and solid? I cant belive there would be some massive difference in the drivetrain loss, etc. its because with the motor mounts you arn't losing power to twist the engine before the power gets to the wheels...the clutch helps grab better helping reaction time and sloppyness....the limited slip gets rid of wheel spin almost totally, and you dont waste power with torque steer...it feels more stable and solid and it doesn't make more power but it puts it down to the ground a lot easier and faster...its not massive but it is enough to notice, and im not the only one who noticed it ...my friend drove it and he about crapped his pants when i told him it was stock boost.

oh yeah i also have a different final drive gear ratio. not sure by how much but it would also play a part in it.

[jeffmsp]

ya know what, i just swapped in solid mounts and I can feel the difference, the car grips much better in first gear and the 1-2 shift is like gold. And since she put in a new clutch and lsd, I am sure she is noticing a nice performance increase now that the power is being handled properly.

[MSPRO]

ya know what, i just swapped in solid mounts and I can feel the difference, the car grips much better in first gear and the 1-2 shift is like gold. And since she put in a new clutch and lsd, I am sure she is noticing a nice performance increase now that the power is being handled properly.
yeah the mounts definantly help a lot ...i am very happy that i put them in while the car was torn apart...and that i didn't have to do the rear one..yay lol

[FSDET]

what about the flywheel ? why did u decide to keep that stock ?

[MSPRO]

I kept it stock b.c it already drops rpms low enough between shifts and i didnt' want to risk giving up the little driability that i have left lol ..this is my daily driver and i do get in traffic sometimes...i figured if i really want it i can get it later but for now i dont really want it ...

[protegeV]

Yummy, Quaife :D

[daedalus]

its because with the motor mounts you arn't losing power to twist the engine before the power gets to the wheels...the clutch helps grab better helping reaction time and sloppyness....the limited slip gets rid of wheel spin almost totally, and you dont waste power with torque steer...it feels more stable and solid and it doesn't make more power but it puts it down to the ground a lot easier and faster...its not massive but it is enough to notice, and im not the only one who noticed it ...my friend drove it and he about crapped his pants when i told him it was stock boost.

oh yeah i also have a different final drive gear ratio. not sure by how much but it would also play a part in it.


Makes sense to me. I was just wondering. Your drive ratio could also play a HUGE factor. I'm wondering how the top speed would be effected as well. Obviosuly limited at 137, but maybe it takes longer to get there, or maybe faster to get there? You wouldnt want to do a little high speed run for us would ya??? (evil)

[Wiggles422]

Do you know the new final drive ratio? Cruising at 3,600 rpms is not something I enjoy, everytime i get to about 75 on the on ramp I start to push the clutch in and shift to my imaginary 6th gear.

[jeffmsp]

I start to push the clutch in and shift to my imaginary 6th gear.

yeah, I love hitting 6th. I think not having one is the only thing that I dont like about the car, I mean come on, even the svt fuckus gets one, mazda should have made it as an option to help keep the costs down on the base price of the msp.

[DeanSweet]

yeah, quaiffe lim slips kick major ass...

[Midnight22]

push the clutch in and shift to my imaginary 6th gear.
thank god mazda has that go into neutral then reverse bit going on... cant tell u how many times i've hit that wall... first im like too far over for a 3rd to 4th shift then i realize what im doing as it starts to get past the middle... lucky theres a block there...

[MSPRO]

Do you know the new final drive ratio? Cruising at 3,600 rpms is not something I enjoy, everytime i get to about 75 on the on ramp I start to push the clutch in and shift to my imaginary 6th gear.
when I'm at 80mph in 5th gear I'm just barely at 3500rpm :) I will do some testing later on today and get some other MPH/RPM numbers for you guys

[Kooldino]

Awesome. The quaife will by my next major performance mod.

[FSDET]

wouldnt the gear ratio change make the car slower in 0-60s and 1/4 miles ?

[MSPRO]

wouldnt the gear ratio change make the car slower in 0-60s and 1/4 miles ?
that is something i was thinking about ...i made a list of mph/rpm numbers and compaired to what was said above about 75mph being 3600 rpm and what mine is, I would be at a high mph at a lower rpm therefore I would think it would be faster in the quarter. to me it seems as if you are at a higher speed at a lower rpm you wouldn't have to shift as much and as often giving you better use of the powerband...but its early and im still tired and dialup is driving me nuts lol so i could be wrong .

here are the numbers. if someone would post stock numbers that would be awesome

mph/ rpm in 5th gear only

60=2700
65=3000
70=3100
75=3300
80=3600
90=4000
100=4500

[yashooa]

Do you know the new final drive ratio? Cruising at 3,600 rpms is not something I enjoy, everytime i get to about 75 on the on ramp I start to push the clutch in and shift to my imaginary 6th gear.LOL Me to :) but I think at 70 I am around 3250RPM?

[mspdfreak]

that is something i was thinking about ...i made a list of mph/rpm numbers and compaired to what was said above about 75mph being 3600 rpm and what mine is, I would be at a high mph at a lower rpm therefore I would think it would be faster in the quarter. to me it seems as if you are at a higher speed at a lower rpm you wouldn't have to shift as much and as often giving you better use of the powerband...but its early and im still tired and dialup is driving me nuts lol so i could be wrong .

here are the numbers. if someone would post stock numbers that would be awesome

mph/ rpm in 5th gear only

60=2700
65=3000
70=3100
75=3300
80=3600
90=4000
100=4500Actually, that looks damn close to my stock numbers...but I'll double-check.

[FSDET]

no stock 75 is 3600 and the 8000 is 4k

[t3ase]

Unless I'm missing something, gear ratios don't just happen to change due to adding a new clutch and LSD. Did you order new gears?

[FSDET]

yeah thats what i thought .... u have to take apart the gearbox and change the gears right ??

[Wiggles422]

LOL Me to but I think at 70 I am around 3250RPM?
I stand corrected, on the interestate today I was going 80mph and that was 3550-3600.


Unless I'm missing something, gear ratios don't just happen to change due to adding a new clutch and LSD. Did you order new gears?
I'm 90% that the final gear ratio is in the differential. (Like rear wheel drive cars)

[t3ase]

So, if you want a lower gear ratio, get the better LSD.
If you want higher, get the gears?

I wasn't aware at all that the LSD came in to play gear ratio-wise..

[t3ase]

Actually, from google and from JDMSam, the only way it would change is if you switch your ring/pinion gear or actual gears. So, again, I'm wondering how this would happen

[t3ase]

moved also. w00t.

[Wiggles422]

I haven't done my homework on this one as I am new to fwd but I assume its the same as fwd. New (stronger aftermarket) differentials usually come with different gears (since the gears are inside the diff). I'm guessing that the new LSD she got came with gears (lower than stock) already in it. I would assume that she left the pinion stock though.

[t3ase]

So, if the LSD came from a RX7, and assuming Tripoint left the ring/pinion gear in the LSD, and knowing our stock final drive is 4.105:1, I'm left to assume they installed the LSD with the RX-7 pinion gear in it which may have a lower ratio.

I'm so confused.

[t3ase]

That'd also mean lower acceleration, too.

[Wiggles422]

I'm so confused.
Me too. I'm gonna let someone else take over.


That'd also mean lower acceleration, too.
Correct.

[t3ase]

Me too. I'm gonna let someone else take over.


Correct.
Would it be safe to assume then that RX-7 gears will work? (confused)

[mazdaowner123]

I'm pretty sure the final drive ratio is in the diff.

~brian

[mazdaowner123]

The rx-7 diff the tripoint people use is from a gsl-se (I'm pretty sure, maybe just a gsl) and it's flipped around and put in all weird, but it works. It's not just bolted in though. This was supposed to be kept on the downlow but since amy mentioned it I guess it's fair game to talk about. I'm guessing they'd want to get a slightly higher top speed on the road courses, which is why they'd go for the different final drive.

~brian

[mazdaowner123]

And btw, it's from a first gen rx-7.

[JDM Sam]

yea, also to change ur gear ratio the wheel/tire diameter would have to be changed drastically. other ways are the actual gears and the final drive ring gear.

[JDM Sam]

her final drive ring gear shouldnt have changed. to install the quaife it bolts in place of the old differential unless it came with a new ring gear final drive attached.

[mazdaowner123]

(shrug)

[MSPRO]

wow this took like 20 mins to load on my moms dial-up.... i am not sure if it changed the ratio...the LSD is the final drive on our cars as I talked to the service guys about it... All I know is that my RPM's are lower than they were stock. acceleration is better. and the car pulls harder .thats all i have to say about it ...it isn't an rx-7 LSD..it is a Quaife...

[nattyboy513]

nice amy, cant wait till im back in cincinnati for thanksgiving and chirstmas break so we can play with the coolest msp's in the tristate ;)

[mazdaowner123]

Yeah, I meant the tripoint LSD is from a first gen rx-7, not Amy's. Sorry if that caused confusion.

~brian

[MSPRO]

well im back from my trip...2200 miles on the new setup and it still feels pretty good ..

[biochembruin]

well im back from my trip...2200 miles on the new setup and it still feels pretty good ..
how is the drivability with the stage III clutch? did you get the stage III for the mazdaspeed or the base protege? my understanding is that both will work, but i'm assuming you went with the msp stage III.

[torque222]

we all would like to know the set back of that set up. over all nice set up , cost would be appreciated as i am upgrading as well.

[torque222]

that price is fair, good quality cost money