WeirPerformance
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793 posts [100%]
American Canyon CA
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2daToP
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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healtoeae86
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2013 posts [100%]
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do you have these for supra 7.5 in rear ends? please email me. I hardly check the forums healtoeae86@gmail.com
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WeirPerformance
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793 posts [100%]
American Canyon CA
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| Quote, originally posted by healtoeae86 » | | do you have these for supra 7.5 in rear ends? please email me. I hardly check the forums healtoeae86@gmail.com |
YGM and we are developing a kit for this now and it should be ready before x-mas.
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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tchybrid
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960 posts [91%]
323
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awesome write up once again, i will definately be looking into purchasing a kit for my spare LSD and 3rd member. thanks for the great information!
Kenny
Drift Social Staff
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WeirPerformance
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793 posts [100%]
American Canyon CA
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**2DaToP**
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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gtSr5
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1081 posts [88%]
Spartanburg SC
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awesome write up spence... im anxiously waiting on a 7.5 setup for my cressida project... now if u could just do a write up on how to setup a ring and pinion...haha.. i wouldnt have to take it to every shop on the east coast and to get someone competent enough to set it up out here..:D
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WeirPerformance
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793 posts [100%]
American Canyon CA
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| Quote, originally posted by gtSr5 » | | awesome write up spence... im anxiously waiting on a 7.5 setup for my cressida project... now if u could just do a write up on how to setup a ring and pinion...haha.. i wouldnt have to take it to every shop on the east coast and to get someone competent enough to set it up out here..:D |
The 7.5" MAXGRIP kit is coming very soon! I won't be doing a differential write up though. There is a ton of information on how to do it already out there Thanks!
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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WeirPerformance
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793 posts [100%]
American Canyon CA
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BumPeD
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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BKH808
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689 posts [95%]
Honolulu HI
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Does anyone know what the carrier bolts are suppose to be torqued at?
http://bkh808.wordpress.com/
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insane
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242 posts [100%]
Farmington NM
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Do you mean the bolts that hold the top cover to the main case? If so 33 ft-lbs.
Glass stays crunchy in milk!
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WeirPerformance
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793 posts [100%]
American Canyon CA
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topper
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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BoRoYaSui
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1723 posts [100%]
long beach ca
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| Re: (WeirPerformance) » | 6:00 PM 9/10/2009 |
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how does the initial torque of the stock lsd and maxgrip compare to an aftermarket lsd?
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WeirPerformance
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793 posts [100%]
American Canyon CA
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| Quote, originally posted by BoRoYaSui » | | how does the initial torque of the stock lsd and maxgrip compare to an aftermarket lsd? |
Well, you honestly really cannot compare them. The O.E.M. LSD uses coil compression springs that push the clutch members apart, similar to a Cusco. Even with the oversize springs we use on our MAXGRIP kit, it still doesn't equal the amout of spring load in the aftermarket LSD units. Kaaz and Tomei LSD units use 2 spring washers which create upwards of 1k lbs. of force. The upside to this in the Kaaz and Tomei is a high initial torque. The downside to this with the Kaaz and Tomei is the clutch members have to compress the spring washers under load so in essence the LSD is fighting itself, springs push in the oppositte direction that the clutch members push. The plus with the O.E.M. and Cusco is the springs push in the same direction as the clutch members. This puts all the forces working in the same direction to clamp the clutch plates. The O.E.M. LSD with our MAXGRIP kit, on the bench, has an initial torque of 15 lbs. break away torque. The Kaaz and Tomei are around 55-75 lbs. of break away torque on the bench. I have checked one O.S. giken LSD and it was near 120 lbs. break away torque. TRD 55-65 lbs. break away torque. One thing I did with the O.E.M. LSD was to wedge the upper clutch member with a screw driver while reading the torque. This simulates a load as the LSD would see while installed in the diff and the wheels on the ground. It easily reached 75 lbs. without prying very hard on the clutch member. In short there is no way to make the O.E.M. LSD have as much capacity as aftermarket from the simple fact that aftermarket LSD units have more clutches that are larger in diameter which equals more friction surface area.
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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WeirPerformance
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793 posts [100%]
American Canyon CA
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2DaTop
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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JDK
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1 posts [100%]
Mississauga Ontario
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| Re: (WeirPerformance) » | 5:35 PM 1/16/2010 |
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Anything available for a 93-95 RX7? i also sent you a e-mail
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WeirPerformance
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793 posts [100%]
American Canyon CA
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| Quote, originally posted by JDK » | | Anything available for a 93-95 RX7? i also sent you a e-mail |
I believe the 93-95 rx7 used a torsen style LSD, we do not have a kit for that.
Spence Weir
Weir Performance Engineering LLC
707-315-6638
spence_weir@sbcglobal.nethttp://www.weirperformance.com
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ichibandan
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1890 posts [100%]
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| Re: (WeirPerformance) » | 6:08 PM 1/25/2010 |
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Right, OEM FD diff is Torsen type. S4 TII diff is clutch-type and will bolt into an FD. In fact, this is a common upgrade for folks making higher power (450hp and up I believe) and are breaking the Torsen units.
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