How power can the NA drivetrain hold?
06-04-04, 05:02 PM
#1
How power can the NA drivetrain hold?
Like the title says... Let me supply alittle more info, my friend has a S5 NA with the clutch lsd, and stock everything else. How much power can the whole drivetrain hold? More less what can the tranny hold?
Also would it be beneficial to upgrade to the TII drivetrain? ANd does anyone know of power loss between the NA and TII drivetrains?
Also would it be beneficial to upgrade to the TII drivetrain? ANd does anyone know of power loss between the NA and TII drivetrains?
06-04-04, 05:56 PM
#2
Older than Dirt
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37 minutes and this needs a bump??
do a search. this question's answered many different ways. bottom line, many members have done the tii upgrade with a na trans and doing fine. Yet other straight na owners with little or no mods are eating tranny's. i believe its a function of how you beat on it more than the power its handling.
do a search. this question's answered many different ways. bottom line, many members have done the tii upgrade with a na trans and doing fine. Yet other straight na owners with little or no mods are eating tranny's. i believe its a function of how you beat on it more than the power its handling.
06-04-04, 06:24 PM
#3
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Oh, and do a search on different tranny fluids. Some feel synthitics are shorting the life of the NA brass parts.
Last edited by Mr. Gadget; 06-04-04 at 06:29 PM.
06-04-04, 08:22 PM
#5
Meesto Spakaro
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If you really DRIVE the car the NA tranny will break over and over again. I went through 2 NA Trannys in a year and called it quits. Upgraded to TII drivetrain-- it'll bring you that much closer to the engine swap...
06-04-04, 08:26 PM
#6
1991 Frankin7 ***RIP***
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what do you considder "driving" the car? if you mean drag launching at every stoplight/stopsign, then yeah the tranny will break real fast.
just drive sensibly around town and have some fun at the track/strip. it'll be fine as long as it wasn't damaged before the swap.
just drive sensibly around town and have some fun at the track/strip. it'll be fine as long as it wasn't damaged before the swap.
06-04-04, 08:30 PM
#7
Meesto Spakaro
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sustained speeds, higher rpms. Even though I always take care to rev match upon downshift, the bearings and synchros still went to hell
1st tranny went down due to input shaft, 2nd was due to bearing failure
1st tranny went down due to input shaft, 2nd was due to bearing failure
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06-04-04, 08:33 PM
#8
1991 Frankin7 ***RIP***
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hmm, thats weird cuz mine has no problems with seeing 15psi on a daily basis and with the harsh grabbing 6 puck clutch and HD pressure plate i've got. hell, the motor went before the tranny did. hehe
06-04-04, 09:19 PM
#9
Former Moderator. RIP Icemark.
Driving style and maintainence will influence drive line longevity more than anything else.
Normally it would be expected that the non turbo driveline can handle around 200 HP and 175-200 ft lbs, however, if you have a fluid and better than average smooth shifting and driving, the non turbo drivelines can easy handle 250 HP.
But abuse it, or fail to regularly change fluids, or have a less than smooth driving style and you will blow through trannys and rear ends very very fast.
Normally it would be expected that the non turbo driveline can handle around 200 HP and 175-200 ft lbs, however, if you have a fluid and better than average smooth shifting and driving, the non turbo drivelines can easy handle 250 HP.
But abuse it, or fail to regularly change fluids, or have a less than smooth driving style and you will blow through trannys and rear ends very very fast.
06-05-04, 12:37 AM
#11
06-06-04, 02:11 AM
#14
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.A high level of grip matched with power killed my old NA setup.
The JICs on a hard damping setting in conjunction with the Azenis overwhelmed the differential and transmission in 5 mins of oversteer oriented driving
The JICs on a hard damping setting in conjunction with the Azenis overwhelmed the differential and transmission in 5 mins of oversteer oriented driving
06-06-04, 02:25 AM
#15
777** The Anti-rice
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Basically what icemark said is what i believe.. If you dont do 6k launches etc (which you shouldnt be doing with NA drivetrain anyways) then it twill last much longer. Just baby it somewhat if your goign to be running high power.
06-06-04, 02:31 AM
#16
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From what I've seen the TII tranny's can handle at least 300hp. A guy I know is pushing 730rwhp on a stock drivetrain. On a FD of course but it makes for a 10 second car at high elevation.
06-06-04, 10:10 AM
#18
Originally posted by DEZERTE
Basically what icemark said is what i believe.. If you dont do 6k launches etc (which you shouldnt be doing with NA drivetrain anyways) then it twill last much longer. Just baby it somewhat if your goign to be running high power.
Basically what icemark said is what i believe.. If you dont do 6k launches etc (which you shouldnt be doing with NA drivetrain anyways) then it twill last much longer. Just baby it somewhat if your goign to be running high power.
Oh also, I doubt he will be doing any 6K launches, maybe 3K at the most, he is not really a drag racer, if any thing just doing rolls from like 30 or so....
What usuaully breaks in the trany when it goes? SO far I see input shaft and bearing failure, any thing else?
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