The main reasons I've been considering a 6 spd heavily:
They seem to be more common than 5 spds. I've seen many of them listed for sale but not many 5spds.
Ltw flywheel prices are fairly similar - you don't seem to end up spending that much more for a 6 spd setup. UUC makes one with a 13lb wheel and a performance organic clutch for $1599, VAC makes one with an OEM M5 clutch for $1500 at 13.5lbs. Since you need an e39 flywheel with the 5spd, JBR appears to go for $800 and clutch kits are $400 or so, right?
The extra weight is in a good spot - near the middle and down low.
It would let me get both a higher top speed, and faster acceleration compared to a 5spd setup when paired with the right diff, + the higher ratio diffs can use all different kinds of clutch setups that are off limits to the 2.93 and 2.79. 40% lock sounds nice.
Brucebe, you are undoubtly more experienced in this matter than I am, speaking of gearing for track use. Surely the car will still do quite well with long gearing, but assuming the same top speed and no wasted shifts on a given track, wouldn't the 6spd car be significantly faster? The only knowledge I'm going off of is watching some Best Motoring video of an S2000 with 4.33 gears as opposed to stock 4.10s gaining a significant lead over the stock car, more so than the difference in driving skill would make possible, and seeing my friends B16 powered Civic hatch running some extremely fast times around the local track partially due to the transmission he built for it - it had such short gearing but since the track had a relatively short straight he made the most out of every gear and took down some much more powerful cars with only 170whp.
They seem to be more common than 5 spds. I've seen many of them listed for sale but not many 5spds.
Ltw flywheel prices are fairly similar - you don't seem to end up spending that much more for a 6 spd setup. UUC makes one with a 13lb wheel and a performance organic clutch for $1599, VAC makes one with an OEM M5 clutch for $1500 at 13.5lbs. Since you need an e39 flywheel with the 5spd, JBR appears to go for $800 and clutch kits are $400 or so, right?
The extra weight is in a good spot - near the middle and down low.
It would let me get both a higher top speed, and faster acceleration compared to a 5spd setup when paired with the right diff, + the higher ratio diffs can use all different kinds of clutch setups that are off limits to the 2.93 and 2.79. 40% lock sounds nice.
Brucebe, you are undoubtly more experienced in this matter than I am, speaking of gearing for track use. Surely the car will still do quite well with long gearing, but assuming the same top speed and no wasted shifts on a given track, wouldn't the 6spd car be significantly faster? The only knowledge I'm going off of is watching some Best Motoring video of an S2000 with 4.33 gears as opposed to stock 4.10s gaining a significant lead over the stock car, more so than the difference in driving skill would make possible, and seeing my friends B16 powered Civic hatch running some extremely fast times around the local track partially due to the transmission he built for it - it had such short gearing but since the track had a relatively short straight he made the most out of every gear and took down some much more powerful cars with only 170whp.
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