Festiva vs. Aspire transmission

[FestYboy]

Arty; no, the 4spd has a slightly higher final drive than the 5spd, according to my literature. But that may only hold true for the early cars.

yeah Jim i've seen both numbers and from what i have in the 89 FSM, they are the same final drive. i don't have the '88 FSM but i do have the trans supliment and it also reads with the '89 FSM as well... i wonder how many early 4 spds were actually put on the road (VIN spread)?

[shadetree]

Okay !! I was thinking the four speed festy and the aspire were the same ratio . But anyway you can tell the difference between the ratio of a four speed festy versus the five speed festy trans . We built the b6d car with a four speed and after a year we lost forth gear , so we replaced with a five speed and it killed the car on a hill !!!! Now were back to the four speed racecar !!

[FB71]

Arty; no, the 4spd has a slightly higher final drive than the 5spd, according to my literature. But that may only hold true for the early cars.

Brad; I'd trust the lockup up to about 200hp. Otherwise, use a Festy converter.

[Movin]

It looks like the lock up converter is no longer being offered ?

[FestYboy]

festy 4spd and 5spd are the SAME save for the extra gear. aspire 5spd changes the final but NOT any of the selected gears.

[shadetree]

Wasn't this for a Manuel transmission ?

[shadetree]

So the festy 4 speed and aspire five speed ( that I said above ) don't have the same final drive . I clearly said festy five speed was different ?

[bhazard]

Re: Festiva vs. Aspire transmission

Hmm so in that case I'm thinking one of two things....

Either the converter will not lock under full load due to excess power and work fine at cruise

Or the power will cause the centrifugal clutch to slip and wear out quickly and send clutch material into my trans....

Professor DeAngelis?

[FestYboy]

for you it may work, but be warned: it;s a centifugal mechanism and can only hold so much power. after that, it slips.

[bhazard]

Re: Festiva vs. Aspire transmission

I have both a lockup aspire converter and a non lockup festy converter for when I put my bpt auto setup together. I was actually thinking of running the lockup converter because Ive read about some turbo/auto Subaru setups people run and they like to lock up their converters before 2nd gear. Some have gotten better ETs and such. I'm thinking being locked up will put more load on the motor and thus help spool the turbo...

[FestYboy]

bingo... i average 6 mpg better in Pepe than i do in Kermit (auto festy vs auto 96 aspire)

[Safety Guy]

Arty wrote:

"Karl i have to say that the lockup converter does nothing for fuel economy except decrease it... the converter locks up too easily and you loose torque multiplication and therefore power to accel. that means you have to stay in the throttle harder and longer compaired to a festy auto with no lockup."

Weird! I wonder why they put it on then? Maybe it worked well enough to improve the gov't CAFE cycle tests?

Karl

[FestYboy]

Karl i have to say that the lockup converter does nothing for fuel economy except decrease it... the converter locks up too easily and you loose torque multiplication and therefore power to accel. that means you have to stay in the throttle harder and longer compaired to a festy auto with no lockup.

[fastivaca]

Re: Festiva vs. Aspire transmission

Are the transmissions in question manual , Automatic or either ?

I'm concerned with the manual transmissiin but this is good info to have on the auto as well.

Sent from somewhere west of here!

[Safety Guy]

Auto Aspire transaxles have a lower final drive than the Festiva unit as well.

Final drives changed about three times depending on the year of the Aspire. Also, I believe the last two years of Aspire auto transaxles had lockup torque converters, which should partially make up for any fuel economy losses, if not improve them even more.

Karl