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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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 Posted: Tue Aug 11, 2015 3:49 am Post subject: 5th Gear G31 ratio |
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Quick question, is 5th gear in a Euro car taller than a N. American car ?
TIA,
Leigh
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Aug 11, 2015 4:21 am Post subject: |
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No, shorter.
{EDIT} and also different ring and pinion. I'd be interested in the Euro R&P and short 5th if you don't have a use for it.
{EDIT} Euro G31 (G31.01 and the GT's G31.03) had all ratios the same except for 5th, as follows:
0.7059 ratio
2.9118 overall
4.1250 final
5th gear: 34/24
R&P: 8/33
North American G31 (G31.02) as follows:
0.6000 ratio
2.8286 overall
4.7143 final
5th gear: 35/21
R&P: 7/33
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erstwhile owner of just about every 924 variant ever made
Last edited by ideola on Tue Aug 11, 2015 4:31 am; edited 1 time in total |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Tue Aug 11, 2015 4:27 am Post subject: |
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Really ? Odd, I would have thought they would want the higher top speed of a taller top gear...
Leigh
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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Fasteddie313
Joined: 29 Sep 2013
Posts: 2595
Location: MI
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| Posted: Tue Aug 11, 2015 4:33 am Post subject: |
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I think we got the super tall 5th to help meet emissions requirements..
Every time you turn around on these US 924s its because emissions this, because emissions that..
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80 Turbo - Slightly Modified
Last edited by Fasteddie313 on Tue Aug 11, 2015 4:36 am; edited 1 time in total |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Aug 11, 2015 4:34 am Post subject: |
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No, US got taller 5th for better fuel economy. I don't like the final drive on the US 5th gear...it's great for economy but not so much for performance driving. I spend very little time on freeway with my car, so the taller 5th gear really does me no good. Most of my driving is back country roads. Also, guys driving on shorter, more technical tracks will like the shorter 5th, but the taller is handy on bigger tracks with longer straights for higher top end.
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erstwhile owner of just about every 924 variant ever made |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Tue Aug 11, 2015 4:37 am Post subject: |
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Well that's sorted then. I love the tall 5th of our cars, here in Canada I'm seldom less than 100 mph on the out of town freeways and the tall 5th makes for a relaxing ride. 4,000 rpm = 100 MPH ,easy peasy.
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Aug 11, 2015 4:57 am Post subject: |
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So do you have a Euro G31? I'll buy the R&P and short 5th if you don't want them.
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erstwhile owner of just about every 924 variant ever made |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Tue Aug 11, 2015 6:03 am Post subject: |
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No, just the opposite. I was going to look to buy one if it was taller than our NA cars.
Leigh
_________________
1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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v8carreragts
Joined: 05 Sep 2003
Posts: 665
Location: Tucson, AZ
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| Posted: Wed Aug 12, 2015 2:21 pm Post subject: |
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I have the Euro 4.125 R & P along with the Euro .7059 5th gear. The ratios now are pretty good with my v8. The 4.125 makes 1st very usable and the engine does not lug like it would have with the .600.
ideola, just buy a transaxle from the UK. That's how I got mine. I went on E-bay UK and found one. Then I asked if he would ship to the us and he agreed so I bought it. It only took a week to get here using UPS.
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84 944--924 Carrera GTS clone w/520HP Chevy 302 V8--RUNNING!
2015 AUDI Q7
2013 Dodge Charger R/T AWD HEMI
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Raceboy
Joined: 01 Mar 2004
Posts: 2327
Location: Estonia, Europe
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| Posted: Wed Aug 12, 2015 4:31 pm Post subject: |
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If anyone is interested, I have Euro G31 to offer, has just worn dogteeth and syncros of 2nd gear. No LSD.
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'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold 
'84 924, turbocharged, sold.
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Wed Aug 12, 2015 10:57 pm Post subject: |
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| Raceboy wrote: | | If anyone is interested, I have Euro G31 to offer, has just worn dogteeth and syncros of 2nd gear. No LSD. |
Would you be willing to remove the R&P and 5th gearset and ship it to me?
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erstwhile owner of just about every 924 variant ever made |
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Carrera RSR
Joined: 08 Jan 2010
Posts: 2312
Location: Somerset, UK
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| Posted: Thu Aug 13, 2015 3:41 am Post subject: |
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Once I get the parts needed for a G31 full rebuild, one of my four boxes is going to be culled. This will leave an additional R&P spare. Will likely be the latter part of this year as I also need to pull the LSD equipped box out of the car.
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252 |
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Raceboy
Joined: 01 Mar 2004
Posts: 2327
Location: Estonia, Europe
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| Posted: Thu Aug 13, 2015 10:55 pm Post subject: |
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The box is apart already, I could take some photos of it if you like.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche |
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