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Old 06-19-2019, 01:49 PM   #7 (permalink)
Ecky
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ND Miata - '15 Mazda MX-5 Special Package
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Quote:
Originally Posted by BongoBennie View Post
Question first....

The 2012 6th was more than just the 2 gears but the parts needed to add them to your accord 5 speed?
I started with a TSX box so it was a straight swap. I'm uncertain what's missing from the Accord box.

Quote:
Originally Posted by BongoBennie View Post
"Let me get this straight" question...
With a (stock?) TSX Engine you're yearning for a 24" (185/70-14) tire along with your 3.4FD/.647-6th? What is the perceived effect on first gear?
Right now when I get on the gas it breaks the tires loose on a warm dry day in 1st even if I ease into it - that's with around 170ft-lbs of torque. Admittedly I'm not running sticky tires, but I'm also running little more than a base map and that's with an LSD. Another 5-7% taller gearing will not hurt. If you're boosting, any extra torque is just going to be wheelspin in the lower gears, even with an LSD.

Edit: I'm running a 3.266 1st gear as well, so a fair bit taller than your proposed 1st. I think a slightly shorter 2nd and 3rd than the TSX gears would be cool, but I don't want 6th any shorter.

Quote:
Originally Posted by BongoBennie View Post
A note on my engine, even though its a K20, cam and intake manifold is same as k24a4, compression is 11.7:1, the turbo is tiny and BB (GT2554r) and the idea was to make it have a K24 (K26?) feel but having driven both K20s and K24s there is no doubt you can feel the smoothness/lightness of the k20 over the k24 which can only be a good thing when cruising.
I removed the balance shafts with a K20A2 oil pump swap and have a 10lb flywheel (down from 24ish lbs stock K24), that's 95% of the difference between the two that you're talking about.

Last edited by Ecky; 06-19-2019 at 01:59 PM..
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