Which differential/rear mod/ratio for 500 whp? RX7/RX8 Swap?
#1
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Which differential/rear mod/ratio for 500 whp? RX7/RX8 Swap?
I went to track 2 weeks ago and left the stock differential in the ground before th lights !. I knew it could happen and was just waiting for it to mod the entire rear end. Searching through here and based in several people experiences, the Turbo II LSD with 300mm drive shafts seems to be a good option and has work great for a lot of people. I'm been wondering about which rear end ratio? and the trap speed differences that could be expected with a 4.30 and a 500+ whp set up...
Also...Has anyone tried the Rx8 swap (4.11 to 4.44)?
thx!
Also...Has anyone tried the Rx8 swap (4.11 to 4.44)?
thx!
#2
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I completely destroyed my stock differential a few months ago. I examined my options and a turbo II diff was the way to go. I dosen't have any noise and it was easy to change, but it did take a while to do. Trust me when I say that it has taken some MAJOR abuse. I would recommende changing the rear diff bushings to while they are out. It is a difference of night and day if they are worn out, plus it eliminates a lot of wheel hop. I did it all for about $700.
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I'm using a 8.8 mustang solid axle rear end w/ track loc, FMS 4.31 gears, moser race 31 spline axles, moser c-clip eliminators and a custom 4 link suspension made with afco aluminum tubing and solid heim joints.
Mine is indestructible.
Mine is indestructible.
#5
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Originally Posted by LUPE
I'm using a 8.8 mustang solid axle rear end w/ track loc, FMS 4.31 gears, moser race 31 spline axles, moser c-clip eliminators and a custom 4 link suspension made with afco aluminum tubing and solid heim joints.
Mine is indestructible.
Mine is indestructible.
...it really sounds like
i might try it later.... have always like to upgrade gradually....will try the TII/300mm combo first and when she hits the 10s and broke it then she will deserve something like that !! about how much you spent?
do you/anyone think the 4.30 really worth? I used to work with Stangs and a really difference would be 3.27 to 4.10 ...don't know about FDs///
Anyone tried the 8's swap?> thx!
#6
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Originally Posted by Red Racer
I completely destroyed my stock differential a few months ago. I examined my options and a turbo II diff was the way to go. I dosen't have any noise and it was easy to change, but it did take a while to do. Trust me when I say that it has taken some MAJOR abuse. I would recommende changing the rear diff bushings to while they are out. It is a difference of night and day if they are worn out, plus it eliminates a lot of wheel hop. I did it all for about $700.
agree is a lot of work... just like the tranny!!! as you said, bushings are worn out... went to mazda and ask me $100/bushing... any better option? (poly or something?...
thx!
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Originally Posted by AImec Racing
...it really sounds like
i might try it later.... have always like to upgrade gradually....will try the TII/300mm combo first and when she hits the 10s and broke it then she will deserve something like that !! about how much you spent?
do you/anyone think the 4.30 really worth? I used to work with Stangs and a really difference would be 3.27 to 4.10 ...don't know about FDs///
Anyone tried the 8's swap?> thx!
i might try it later.... have always like to upgrade gradually....will try the TII/300mm combo first and when she hits the 10s and broke it then she will deserve something like that !! about how much you spent?
do you/anyone think the 4.30 really worth? I used to work with Stangs and a really difference would be 3.27 to 4.10 ...don't know about FDs///
Anyone tried the 8's swap?> thx!
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#8
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Originally Posted by AImec Racing
agree is a lot of work... just like the tranny!!! as you said, bushings are worn out... went to mazda and ask me $100/bushing... any better option? (poly or something?...
thx!
thx!
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Originally Posted by LUPE
I'm using a 8.8 mustang solid axle rear end w/ track loc, FMS 4.31 gears, moser race 31 spline axles, moser c-clip eliminators and a custom 4 link suspension made with afco aluminum tubing and solid heim joints.
Mine is indestructible.
Mine is indestructible.
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Originally Posted by Swolbynos
do you have any guesses on how much it would cost someone to duplicate it?
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Originally Posted by Swolbynos
do you have any guesses on how much it would cost someone to duplicate it?
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Originally Posted by AImec Racing
agree is a lot of work... just like the tranny!!! as you said, bushings are worn out... went to mazda and ask me $100/bushing... any better option? (poly or something?...
thx!
thx!
#22
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Originally Posted by Red Racer
Did you get the housing as well?
nop... mine was ok ...
looking the real number, the 4.30 is a 4.37 right?, so should not be that much of a difference vs the RX8 4.44 ,,, I have one available from a friend that swap a 4.10 for his 20B-Rx8... so I might try it...
on the bushings,,, just found a shop that custom made them for $80 each so they might be the same brand
#23
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Originally Posted by KNONFS
tipo q'es la q hay?!!
those are for TII ... will they fit the FD housing?
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Originally Posted by AImec Racing
tipo q'es la q hay?!!
those are for TII ... will they fit the FD housing?
those are for TII ... will they fit the FD housing?