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> what does the flipped 3/5 gear do?
Aaron Cox
post Oct 18 2004, 11:21 AM
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curious, what does this do?

lower rpms in 5th?

curious
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bondo
post Oct 18 2004, 11:24 AM
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3rd is 23:29 5th is 31:22. Flipping 3rd and usuing it as 5th would give you 29:23, whuch would give you higher RPMs in 5th.
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Aaron Cox
post Oct 18 2004, 11:27 AM
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bummer. i need to drop tranny sometime and replace seasl (leaks moderately - shifts great) i am running 50 series falkens, and im pulling like 4k on the freeway goin about 80. drives great, was wonderin what this gear swap did while i am doin tranny stuff
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bondo
post Oct 18 2004, 11:31 AM
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I have an H gear for sale (shameless plug) that will get your highway RPMs way down. The price is dropping very soon.
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skline
post Oct 18 2004, 11:33 AM
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So 5th gear in a stock 901 is a ZD? I thought it was M. Now I am totally lost.
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Aaron Cox
post Oct 18 2004, 11:35 AM
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QUOTE(bondo @ Oct 18 2004, 10:31 AM)
I have an H gear for sale (shameless plug) that will get your highway RPMs way down. The price is dropping very soon.

im clueless about this tranny stuff. its a "while im in there thing" , probably something i can do myself?
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bondo
post Oct 18 2004, 11:42 AM
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QUOTE(acox914 @ Oct 18 2004, 10:35 AM)
QUOTE(bondo @ Oct 18 2004, 10:31 AM)
I have an H gear for sale (shameless plug) that will get your highway RPMs way down. The price is dropping very soon.

im clueless about this tranny stuff. its a "while im in there thing" , probably something i can do myself?

It's not an easy thing to do, but not impossible either. You'd need Red-Beard's article, my picture article that's in the classics, and the factory shop manuals. Take your time, keep track of what goes where, and it's do-able. You'd probably want to rearrange your existing gears so the jump from 4th to 5th isn't too big. Typically the thing to do (for V8s anyways) is to put the flipped H gear where 5th was, put 5th where 4th was, take 4th, flip it, and put it where 3rd was, and take out the old 3rd.

Scott: all 5 914 transmsissions I took apart had the following gears:

1st: A
2nd: F
3rd: N
4th: V
5th: ZD
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TimT
post Oct 18 2004, 12:33 PM
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QUOTE
So 5th gear in a stock 901 is a ZD? I thought it was M. Now I am totally lost.


M is typically used as third
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propricer
post Oct 18 2004, 12:49 PM
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Stock 914 901 gearing is A-F-N-V-ZD where ZD is 31:22.

Using the H ( 19:32 ) gear in place of 5th will drop your highway RPMs down to less than 3,000 RPM.

Also, there are other H gears such as the HA ( 20:32 )and the HB ( 19:31 ).
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Aaron Cox
post Oct 18 2004, 12:52 PM
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so putting a 5th in the 3rd spot gives you a taller 3rd?

so it sounds like i want a 5th for 3rd, and a stock 5th or an Ha gearset

or i could just buy a 55 series tire next time (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/lol2.gif)
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skline
post Oct 18 2004, 12:54 PM
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I got this gear chart calculator from Carquip, its pretty cool and tells what speed and everything you would get with any size gears or tires. Pretty interesting. I will see if I can attach it.

ok, it wont let me attach it. If anyone needs it, I can send it to you in an email, PM me for it.
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eeyore
post Oct 18 2004, 01:16 PM
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The swap moves 3rd and 5th lower.


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Bleyseng
post Oct 18 2004, 01:59 PM
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I swapped the 3rd and 5th gears and I love the flipped 5th gear in 3rd place but the 3rd gear in 5ths place sucked for a street/AX car. I stuck another 5th gear back in to 5th gears spot for a nice close ratio box that you can still freeway drive.

I run 205x50's also

Geoff (IMG:style_emoticons/default/wacko.gif)
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Mueller
post Oct 18 2004, 02:18 PM
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for a stockish /4 motor, i thought Jake thinks that 5th gear is too tall and that the /4 motor benifits from running at a higher rpm (for cooling) so your current tire choice might be okay..
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bondo
post Oct 18 2004, 02:19 PM
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But imagine the gas mileage benefit of running an H gear! (IMG:style_emoticons/default/smile.gif) (you would definitely need to downshift on even the slightest hill though)
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