...it looks like I'll have another Civic shortly. *chuckles* A wagon no less, 84. :-)
Now to track down tranny parts...
Current plan: (since all the individual parts are interchangable and cheap as hell)
|1st Gear||2nd Gear||3rd Gear||4th Gear||5th Gear||Final Drive|
|85 Civic SI||84-87 CRX HF||84-87 CRX HF||85 Civic SI||84-87 CRX HF||86-87 Civic SI||Source of Part|
|~7:11||~8:11||~7:10||~7:11||Per-shift Gear Ratios|
|33.8||54.9||77.4||111.4||171.4||Speed @ 6000RPM|
|48.2||65.2||97.3||135.1||161.7||Stock Speed @ 6000RPM|
|70%||84%||80%||82%||106%||New Top Speed|
The tranny would be approximately 6000rpm->4000rpm at the 2-3 and 3-4 shift (longer jump from 1st and into 5th, both intentional) and shifted down a fair bit from a stock Civic transmission (14.52 versus 10.1626 for the standard '84 transmission) so it'll accelerate MUCH better from a dead stop.
Edit And just as a side-note before people go "BUH? You'll go how fast?!?" at the top speeds I listed there, note that especially 5th gear is purely a 'cruising at 55-75 gear on flat ground' choice meant to really bump up highway MPG values. The stock engine won't have enough oomph to get up to those speeds at all. But I believe the stock transmission would be stuck in 2nd at best on the grapevine, while the 're-geared' one should still be able to handle 3rd on the grapevine. And my RPM's will be around 2000 at 55mph both before and after the conversion, so my long-distance MPG won't be affected negatively by this change, only my city MPG will take a slight penalty.
Only thing left to do, start going over my Civic manuals to plan out where I'll put an oil cooler and temperature probe in since I learned how cheap such a system is.Leave a comment