Do aluminum driveshafts help that much? What I was thinking is they either give you more of an RPM range or they transfer more HP and torque over to rear wheels, but I'm not sure.

 

They reduce the total rotating mass that has to be accelerated from 0 RPM to whatever their RPM is at the finish line. It's not a real big thing, but every little bit helps.

 

When my dad had his 92, he swapped to aluminum. It made a very small difference in acceleration. Like RB83L69 said, it's just less weight for the engine to turn.

Matt

 

dumb question... did formulas come with aluminum drive shafts. thanks

 

just checked faq page sorry and thanks

 

just checked faq page sorry and thanks

 

They do make a pretty decent change...Nothing like nitous though.. It's less weight, so it's quicker to get up to speed, because it's easier for your engine to turn, also it is alot less strain on your tranny and engine cause it's lighter and eaiser to move..think aobut yourself..you wana turn somthing heavy for hours on a day, or would your rather it be light? Had a aluminum on on the 2002 ss...it twisted..had to get the steal one back on...Carbon fiber is just too expensive..

 

this is a easy swap sves all of 5 lbs the neat thing is a 4th gen will bolt right in i have a 98 in my 87 ta so any ls1 alum shaft will fit std or auto look on ebay 125-175$

:lala:

 

i just got a practically brand new one of ebay for 146 shipped, not abd at all, deosnt even look used. i beleive they are 10 lbs lighter then the steel AND they are a lot safer due to not having a critical speed like a steel shaft does. this means when ur doin 140 the saft isnt likely to vibrate so bad it comes through the floor pan on ya.

 

no theyre only 5 lbs lighter i weighed them
:lala:

 

which one did you weight?

the LS1 shaft is lighter than the 1le shaft.

 

i weighed the stock steel one out of my 87 vs. a ls1 98 and there was 5 lb difference
how much difference between the 1 le and the ls 1?

 

i cant prove it, but i think theres more then one alum 4thgen driveshaft.

 

why would they bother? these are just production cars

 

The 1LE was just a production car too.

 

i look at alot of the changes made to production cars and go..... WTF?! why the heck would they change that!?



theres a million possible reasons besides whats best for the car... could be cutting costs, or they subcontracted a diff manafactuer, who knows..?



im just getting the impression that there is more then one.

 

The third gen 1LE driveshaft is lighter than the LS1 shaft. The third gen shaft is smaller in diameter than the LS1 shaft.

 

that dosent necesarily mean its lighter... have you weighed them?
it may be of thicker material for strength
as actual diameter affects overall strength