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> Tranny Gearing.
749142
post Feb 18 2008, 10:55 PM
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Hey guys.
does anbydody know about regearing a 914 transmission with a steeper final drive ratio differential. do they make aftermarket differentials? if so any links?
thanks
steven
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toon1
post Feb 18 2008, 11:39 PM
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QUOTE(749142 @ Feb 18 2008, 09:18 PM) *

QUOTE(Bleyseng @ Feb 18 2008, 08:59 PM) *

The final drive/5th gear setup was setup to keep the fan moving at the right speed for cooling.

Changing that for a street car means looking at how you will cool the engine.

my dad has done such extensive polishing to my heads and pistons that my engine runs about 65 degrees cooler than stock. so there for if i can gear it steeper i can get back some of that heat for efficiency and then have more topend if i have the power and have more efficiency becuase of lower rpms. i have video of my heads that are polished. they look like mirrors. you can see the reflection of my dad with the camera in the valves. it took him about 4 months to do the two. but it was well worth it. next best thing from ceramic coating.
steven



QUOTE(AgPete139 @ Feb 18 2008, 09:22 PM) *


(IMG:style_emoticons/default/agree.gif) get some pics.

65* cooler is great.

Taller rims/tires may be an easier, less expensive way to go. A setr of 16 in wheels and 60 series tires will get you to a stock wheel/tire height. this will yeilsd about a 3k rpm range at about 70ish mph

If you are really interested in going into the tranny, there are gear charts avail if you do a search. It will give you some ideas of what flipping gear pairs will give you for a final drive.

The final drive that looked good to me was a flipped second gear combo but most second gear combo's have one gear that's fixed to the main shaft.

All others are too tall.
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