ok i have a feeling im wrong in my thinking but i want a reason why (trying to get learned). ok first lets start with a

...shorter geared trans, b16 trans, with a stock flywheel. acceleration is good due to the shorter gears (duh) and the RPM drop between shifts is minimal due to the closer gears (duh)
now the longer geared trans, b18a/b trans, with a lightweight flywheel (weight is not an issue, its just a reference that it is lighter than stock) is normally slower in acceleration due to the longer gears but RPM's increase faster because of the lightweight flywheel. now with the RPM's climbing faster, wouldnt the acceleration be comparable to the b16 trans? i know that the RPM drop between the shifts would be worse than the b16 trans but revving a little bit higher should drop it back onto the engine powerband (assuming its a VTEC engine = narrow powerband). all HELPFUL opinions/theories/reasons are welcome.

 

pm earl, he did a comparison between a b16 and LS tranny. see what he says.

 

thanks i just PMed him

 

You want the lightest, smallest clutch and the tightest gears that will let you end the 1\4mi at top of 4th.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">You want the lightest, smallest clutch and the tightest gears that will let you end the 1\4mi at top of 4th.</TD></TR></TABLE>


peak power.

 

Not Necessarily...Depends on the power band and how the engine carries the peak. With an All-Motor Car, yu can gain by shortening the gearing and revving the engine higher...This takes best advantage of the torque multiplication on the shift and puts your at a high rpm on the shift...Keeping you in the fattest part of the powerband for the longest ammount of time.

 

run as heavy of a flywheel that you can, and still launch without major tire spin.

Some spin IS GOOD, about 10% slippage for max traction.

Myself, 200 whp, the car BOGGED the launch when I went to a 7.5 lb Clutchmasters flywheel. I'll stick with my cut down factory 12.5 lb unit.

 

wow. what i really meant to ask was "will a lightweight flywheel help out my accleration" guess i didnt word it right when i first posted. i was a little buzzed. lol. but its better this way. ALOT of good info. big ups to all yall, keep it going

 

it will help, ONCE the car is moving, but from a launch, you car will bog and the heaiver flywheel will win.

Assuming similar prepped cars.

 

ya guys,, tire sizing plays a major roll as well. You can run a tall geared trans with smaller tire diameter or a shorter geared trans with a taller diameter. Key thing being is as mentioned before, crossing the traps in 4th while still making power. No point in stayin in 4th till 9k just to make it accross the traps in 4th when your power dies at 8300...AKA, step up your tire size ever so slightly. Thats if you dont have the option of buying a short geared trans and are stuck with your LS trans or vice versa.

Sounds like the similar controversey with BMX bike's gear ratios...
Lets say a 52 front sprocket and a 18 rear sprocket yeilds a 51.2 gear ratio
Then a 44 front 16 rear yeilds a 51.2 gear ratio....Obviously even though different sized sprockets, its the same final gear ratio.
Some say one spins out faster than the other... Totally doesnt make any sense, a final gear ratio is a final gear ratio.. Similar to as if you have the tall geared trans with smaller diameter tires and a short geared trans with taller tires. Supposing they yield the same final gear ratios, almost no reason why one should be different from the other... Assuming 1st,2nd,3rd, and 4th gear ratios were the same, just a different final drive... make any sense?

 

Someone who understands gearing also!!!!!!!!!!!!

PREACH ON!

 

BUMP...anymore good info out there?

 

bout all you need to know is in here... Except about those crazy 4.77 final drives or whatever the number was...
I had this video of an all motor EK. He zipped 1st,2nd,3rd like nothing and then 4th lasted longer than the first 3 gears combined all the way accross the line. It was wierd, but definatly DIALED!

PS i know he had the 4.77 gearing, unsure of trans/tire size.

 

cool. maybe we should try to get this archived. real good info

 

Easy FD swap, just use 20" tall slicks!!!!!!!!

A 4.25 FD with the shorter tires become effectively 4.824