Swapping drive shaft
#1
Swapping drive shaft
Well I just recently picked up my lovely AT 06 RX8 and I was wondering what kind of gains I would see from swapping to the manual trans one seeing how it is full carbon....I've searched and didn't see any post. And I'm not a newbie to cars I've been around the block and I'm trying to free up some rotational weight....
#5
No they are a direct swap. My concern is the weight. If we (automatics) shave weight we will obviously have more low end power. And no it won't and 10hp let alone 1hp but it will free rotational mass which ands to more wheel hp....
#6
He's as bad as Can
https://www.rx8club.com/series-i-specific-performance-mods-97/mt-swap-151684/page2/ (post 31)
#7
Yes a long dump may save me 2-3 lbs but does no one understand the concept of rotational weight. Most people stand behind light weight pulleys if I'm not mistaken. And for the most part you are saving about 20% over stock which is what 1/2 to 3/4 of a pound and people are seeing or feeling improvements. Now what if you remove 3lbs off of the drive line for the same price you pay for your lightened pulleys but with more of a gain. I don't know about you but I will take the bigger gain for the same price...
#8
I'll snap his neck.
If you can pick up one cheap, I'd love to hear the results. My opinion after talking to RR (who did the swap) and mac11 (a really smart local) is that it is not worth the cost. But if you can get a cheap one and get the swap done cheap, then give it a try and let us know.
#10
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removing 3 lbs from the driveshaft is similar in weight loss to what the MT's see for a lightweight flywheel...
now i'm gonna make you think and answer this for yourselves... : Does the diameter over which this mass covers make a difference? ie... a 12lb dinner plate vs a 12lb broomstick..
now i'm gonna make you think and answer this for yourselves... : Does the diameter over which this mass covers make a difference? ie... a 12lb dinner plate vs a 12lb broomstick..
#11
The better way to go would be the broom stick because the weight is closer together I would assume but I could be wrong. Isn't that way race teams and such use smaller diameter clutchs?
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Its worth a try most bolt ons out there are $300 and up.....and they dont guarantee much either maybe 3.5 hp but thats it. A lighter weight more rigid drive shaft most likely will provide no gain but you will have less of a drivetrain loss when delivering the power to the wheels...hmm im convincing myself to do this
#18
I'll snap his neck.
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