this sucks
this sucks ok i am looking fur a system that will support 1000 rwhp.
so far my chooses are s60 with 35 spline with true track but the highest(or lowest, which ever way i said say it) gear is 3.54. i would love to be in the low 3.**
or
9" rear end with a 35 spline and locker. but i dont want a locker i want a posi( street car) so 9" choice is a 31 spline. but that wont support 1000 wrhp.
so i think with all of todays tech. why the hell isn't that stronger **** out on the market. or better options. i mean GM has a ZR1 with 650 horse from the factory. Ford has a GT 500 with 500 horse from the factory. Dodge has a viper with 600 horse from the factory. and of those cars could easily hit 1000 horse with bolt ons and a few upgraded parts.
so what other options do i have.
and if a LS1 Tech Sponsor wants to drop in. and make a good case. i can garrenty you a sale.
thanks
Big Bird
so far my chooses are s60 with 35 spline with true track but the highest(or lowest, which ever way i said say it) gear is 3.54. i would love to be in the low 3.**
or
9" rear end with a 35 spline and locker. but i dont want a locker i want a posi( street car) so 9" choice is a 31 spline. but that wont support 1000 wrhp.
so i think with all of todays tech. why the hell isn't that stronger **** out on the market. or better options. i mean GM has a ZR1 with 650 horse from the factory. Ford has a GT 500 with 500 horse from the factory. Dodge has a viper with 600 horse from the factory. and of those cars could easily hit 1000 horse with bolt ons and a few upgraded parts.
so what other options do i have.
and if a LS1 Tech Sponsor wants to drop in. and make a good case. i can garrenty you a sale.
thanks
Big Bird
I'm not sure what you're asking. A Detroit Locker is a posi differential. A lot of people use them on the street.
If you want something that supports 1000hp, you're going to make tradeoffs somewhere.
yes. not a locker.
i want it so if i step on the gas on a curve. it doesn't kick out from behind me.
and i understand i got to give up some stuff.
but what will 31 spline take?
i want it so if i step on the gas on a curve. it doesn't kick out from behind me.
and i understand i got to give up some stuff.
but what will 31 spline take?
ok i am looking fur a system that will support 1000 rwhp.
so far my chooses are s60 with 35 spline with true track but the highest(or lowest, which ever way i said say it) gear is 3.54. i would love to be in the low 3.**
or
9" rear end with a 35 spline and locker. but i dont want a locker i want a posi( street car) so 9" choice is a 31 spline. but that wont support 1000 wrhp.
so i think with all of todays tech. why the hell isn't that stronger **** out on the market. or better options. i mean GM has a ZR1 with 650 horse from the factory. Ford has a GT 500 with 500 horse from the factory. Dodge has a viper with 600 horse from the factory. and of those cars could easily hit 1000 horse with bolt ons and a few upgraded parts.
so what other options do i have.
and if a LS1 Tech Sponsor wants to drop in. and make a good case. i can garrenty you a sale.
thanks
Big Bird
so far my chooses are s60 with 35 spline with true track but the highest(or lowest, which ever way i said say it) gear is 3.54. i would love to be in the low 3.**
or
9" rear end with a 35 spline and locker. but i dont want a locker i want a posi( street car) so 9" choice is a 31 spline. but that wont support 1000 wrhp.
so i think with all of todays tech. why the hell isn't that stronger **** out on the market. or better options. i mean GM has a ZR1 with 650 horse from the factory. Ford has a GT 500 with 500 horse from the factory. Dodge has a viper with 600 horse from the factory. and of those cars could easily hit 1000 horse with bolt ons and a few upgraded parts.
so what other options do i have.
and if a LS1 Tech Sponsor wants to drop in. and make a good case. i can garrenty you a sale.
thanks
Big Bird
The cars you quoted have all of their horsepower measured at the engine. A 505 hp Z06 on my dyno makes 430 rwhp on my Mustang Chassis Dyno. If you are looking for rwhp above 600 then I see you only having two choices. A locker or a spool. A locker isn't too bad once you get use to it, but I prefer a spool myself. If I had to do a lot of city driving then i would go with the locker. Bob
A board member (INTMD8 - works at SpeedInc) used to have a '96 twin turbo SS 6-speed with, I believe a Moser 9" with 31 spline axles/TrueTrac, and his car put down close to 900rwhp. I never heard of him breaking it either. You might ask Larry, I'm sure he knows more about it.
Last edited by supernaturalta; Nov 27, 2008 at 11:05 PM.
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Joined: Sep 2008
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From: tampa
for that much power, you would probably be best with a Dana. from what i have researched they hold the most power,
but a 35 spline 9" might hold up alright.
any car with 1000 RWHP is going to not be the most streetable. if you really are going to reach 1000 RWHP (not to say that you wont),
you will need to make sacrifice(s) to have that much power, some potentially affecting drivibility. (IMHO) one of those sacrifices may be using a spool. sure it wont corner friendly, but if you want it to launch and have best probablilty of sticking it perfectly, you might not want to rule it out.
but a 35 spline 9" might hold up alright.
any car with 1000 RWHP is going to not be the most streetable. if you really are going to reach 1000 RWHP (not to say that you wont),
you will need to make sacrifice(s) to have that much power, some potentially affecting drivibility. (IMHO) one of those sacrifices may be using a spool. sure it wont corner friendly, but if you want it to launch and have best probablilty of sticking it perfectly, you might not want to rule it out.
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well can anyone find an old 3.07 gear for a dana60?
and i understand i have to give stuff up. i am just saying with all the fast cars on the market. there isn't **** coming out to the market in the rear end department (besides like the new housings)
but all this **** keeps coming out for motor, trany, and other places on these cars, but the rear is getting the shaft.
Launching!
Joined: Mar 2008
Posts: 262
Likes: 0
The cars you quoted have all of their horsepower measured at the engine. A 505 hp Z06 on my dyno makes 430 rwhp on my Mustang Chassis Dyno. If you are looking for rwhp above 600 then I see you only having two choices. A locker or a spool. A locker isn't too bad once you get use to it, but I prefer a spool myself. If I had to do a lot of city driving then i would go with the locker. Bob
thats what i dont get either, there are ALOT of cars out there with more than 430 rwhp and they dont use a locker or spool, they are performance cars made for turning and road racing tracks. Why cant we use the same type of rear end/diffs as they use???
Have a look at this:
http://www.moserengineering.com/Pages/axletech.html
For example, if you use a 2.66 1st gear ratio of a T56 and a 3.15 ratio from a 9", you'd be good for over 900 ft-lbs of torque using 31 spline axles. Since horsepower is a function of torque and RPM (HP = Torque x RPM/5252), you don't need 1000 ft-lbs of torque to make 1000 hp.
The worry is the diff not the axles so much. I am going dana 60 but tru trak or whatever not locker or spool. But also swapping over to auto.If it breaks then will look at spool or locker. Heck guys are running the crappy 10 bolts with autos to 10s.
You might have to settle on a locker or spool if you truly want to keep the m6. Or simply reduce power for track runs. On the street not as likely to break thing wouldn't think.
Or maybe don't heat up your tires at the track. Then you won't hook and shouldn't break stuff. Not easy to hook up 1000rwhp anyway or even 800rwhp. You will see when you get your build done.
I am hearing such different things from guys with spools and guys with lockers. Almost need to drive cars with both to really see how bad or good they are.
And not sure why you want to go with really low gears. They make the cars pretty doggy off boost and see no clear evidence they are better for turbo cars. I have seen many many turbo cars with 3.73 and 3.42 and some even with 4.10s that seem to do just fine. I am going 3.54 still has plenty of 1/4 mile potential and reallly so what if have to go to overdrive in the quarter unless its a track car. I don't think I could stand driving around town with like 3.0 gears off boost even with my 408. But hey YMMV. 9 inch are nice rear ends too.
You might have to settle on a locker or spool if you truly want to keep the m6. Or simply reduce power for track runs. On the street not as likely to break thing wouldn't think.
Or maybe don't heat up your tires at the track. Then you won't hook and shouldn't break stuff. Not easy to hook up 1000rwhp anyway or even 800rwhp. You will see when you get your build done.
I am hearing such different things from guys with spools and guys with lockers. Almost need to drive cars with both to really see how bad or good they are.
And not sure why you want to go with really low gears. They make the cars pretty doggy off boost and see no clear evidence they are better for turbo cars. I have seen many many turbo cars with 3.73 and 3.42 and some even with 4.10s that seem to do just fine. I am going 3.54 still has plenty of 1/4 mile potential and reallly so what if have to go to overdrive in the quarter unless its a track car. I don't think I could stand driving around town with like 3.0 gears off boost even with my 408. But hey YMMV. 9 inch are nice rear ends too.
reason i want lower gear is Texas mile. 
also this is a street car. and with lets say 850 to the ground the lower the gear the longer each gear is.
also witha a standard 275/45r17 rim. at the top of 4th with a 3.54 gear it is only like 148 Miles per hour
also this is a street car. and with lets say 850 to the ground the lower the gear the longer each gear is.also witha a standard 275/45r17 rim. at the top of 4th with a 3.54 gear it is only like 148 Miles per hour
My S60 true track is great on the street. Feels alot like the 10bolt but no worries ever!!!
Dont know what to tell you about the gears. Im super happy with the S60 though!!!
Dont know what to tell you about the gears. Im super happy with the S60 though!!!