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Honda transmission gurus, I have a question.
At some point I might be interested in making Aerocivic's gearing even taller. Looking at the charts, the 88-91 HF has the tallest ratios possible, and would result in a 10.3% reduction in RPM in 5th gear. 1.2% of this is from 5th gear being slightly taller, and the other 9% is from the final drive.
The notes say that the countershaft is shorter for the 88-91 CRX than in 92-00 Civics, and the countershaft is part of the final drive (FD is the ratio of the countershaft and ring gear on the diff). This suggests to me that I cannot swap the final drive from the CRX HF into the Civic gearbox, and the 5th gear alone would be virtually meaningless.
Meaning, if I want the HF gears in Aerocivic, I probably need to put in the complete HF gearbox.
Where this is difficult:
-The differential might not be in the same spot, meaning the axles may not be the right length anymore.
-The transmission mount will be different. I can fabricate this though.
-The shift linkages might not bolt up / work
-The bits that mount on top of the transmission (e.g. airbox) likely will not have anything to bolt onto
-Cable to hydro conversion would be required at the transmission
-VSS will need correction. Hopefully it's electrically the same.
Anyone have details on any of these points for me?
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