Skip to content
Aussieveedubbers

Quick guys i need feedback ASAP so i can purchase the gears

0 likes
Share Share on Facebook Share on X Share on Reddit
Log in to reply

72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631246
Ok guys

I'm getting a 4.57 albins Ring and Pinion, changing my gears to:

3
2
1.3
0.82

shift speeds are:

64
95.4
147
233

4th gear 3010 rpm at 100 kph

12.256 1/4 mile ET
178.0 1/4 mile - kph
4 1/4, gear @ end
5357 1/4, rpm @ end


Quick guys i need feedback ASAP so i can purchase the gears.

only problems i can see are that in a 40kph school zone i will be in 2nd gear @ 3000rpm (3rd gear @ 1909rpm)

and 110kph will be 3311rpm
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631248
With those ratios, each gear selected will be at a lower RPM.

1st - 2nd = 4666

2nd - 3rd = 4550

3rd - 4th = 4415

Ideally, you want to grab each new gear at higher RPMs.

Have you seen Albins' web site?
http://www.albinsgear.com.au/

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631250
changing at 7000rpm i calculated:

1st - 2nd = 4715rpm

2nd - 3rd = 4563rpm

3rd - 4th = 4412rpm

changing at 7500rpm i calculated:

1st - 2nd = 5000rpm

2nd - 3rd = 4879rpm

3rd - 4th = 4725rpm

what i am trying to keep is good driveability around town and not loose anything at the strip. and maintain a 3000rpm highway speed.

what ratios would you guys be goin for?
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631254
Assuming 215/60/15 rear tyres

3.0 1st
1.76 2nd (shifting @ 7000 = 4106rpm)
1.09 3rd (shifting @ 7000 = 4335rpm)
0.82 4th (shifting @ 7000 = 5266rpm)

Slightly bigger spread between 1st - 2nd, and 2nd - 3rd (closer to the spread of the stock ratios).

With that R&P and 4th ratio, your gearing is close to stock L-bug 4th gearing. Is that what you want with a water-cooled, turbo motor?

Depend on what you're after, track ratios will be a compromise on the street and vice versa.

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631259
cool i like the way the revs are higher at the next gear but i think the 1/4 times will be the same? correct?

and the biggest problem is the only gears albins have in stock are:

1st/2nd sets I have on the shelf at the moment are –

2.75 X 1.93

3.00 X 2.00

2.15 X 1.76

3.33 X 2.08

3.10 X 2.08

3.55 X 2.25

2.82 X 1.86

3rd – 1.78, 1.84, 1.72, 1.65, 1.59, 1.50, 1.44, 1.40, 1.35, 1.30, 1.25, 1.19, 1.14



4th – 1.50, 1.44, 1.40, 1.35, 1.30, 1.25, 1.19, 1.14, 1.09, 0.96, 0.85
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631263
Let me run through some calcs and I can compare some of the ratios.

Send me a PM with your e-mail and I can send you the graphs.

Dangerous is very good with drag racing ratios - hopefully he will chime in.

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#631274
weak diff ratio ?


72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631281
its the only one they have
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631285
If they are the only gear sets, then your original combo is about as good as you will get with that diff.

I think that in most situations, the higher the diff ratio, the weaker the parts are.

I think you'll find a beetle 3.875 or 3.44 (used by Wayne Penrose I think) would be a better drag racing diff.

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631400
I am waiting for weddle to get back to me for a list of there available gears.

Having the gears rise higher in the next gear is this any real benefit?

Obviously no matter the ratios Albins gears are super strong, I've only heard one or two stories of them braking and that was under tremendous load and on a track.
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

JVLRacing Custom Title Time!

1,100 posts · joined Mar 2007 ·

#631406
if circuit yes! 3.55 1st and 4th 1.00

72type3wrx Seriously Crusin Dubber

152 posts · joined Aug 2006 ·

#631414
if circuit yes! 3.55 1st and 4th 1.00
is that because take off speed isn't as important on a circuit? also a 1.0 4th will have my engine crying on a highway cruise.

I'm after street ratios, IE cruising around town, racing falcodores at lights and the occasional trip to the strip.
1972 Type 3 Fast back, RS Turbo 2ltr, VF34/P20,
3" Exhaust, WAIC, Wolf 3D, Sard 540cc's, Swirl pot and VL Fuel pump, Apexi CAI, Custom VW 4spd with straight cut albins 3.87 R&P, stock brakes

JVLRacing Custom Title Time!

1,100 posts · joined Mar 2007 ·

#631417
72type3wrx wrote:
if circuit yes! 3.55 1st and 4th 1.00
is that because take off speed isn't as important on a circuit? also a 1.0 4th will have my engine crying on a highway cruise.

I'm after street ratios, IE cruising around town, racing falcodores at lights and the occasional trip to the strip.
Its all about getting power to the ground and helps with circuit. I found 3.55 was spot for 1st gear.. Depending on your torqre figs thats where you need to find out before decidin wat ratio you need.

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631443
Here are the graphs so far.

The first one is your suggested ratios. You can see that each new gear is grabbed at a slightly lower rpm.



They are relatively evenly spaced. The dashed lines you can see are std L-Bug ratios. You can notice that you 2nd and 3rd gear ratios are much shorter than the beetle ratios. Not much chop for a water-cooled turbo bug for street driving.

Notice that with that 0.82 4th and that 4.57 R&P, that your rpms at highway speeds are nearly 3200. Could you live with that? Or are you better off getting a taller R&P?

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631449
In this graph the ratios are
3.33
2.08
1.3
0.82
3.875 R&P



1st 2nd and 3rd are taller than the beetle, but closer together. 4th is taller, about 2500 @ 100km/h, about 3000 @ 120km/h.

How this would go on the track - ??

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

56astro Custom Title Time!

1,772 posts · joined Aug 2002 ·

#631495
He's been using that Wes

👍

VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa

Baja Wes V6 Baja Pioneer

3,119 posts · joined Aug 2002 ·

#631730
yeah, I couldn't tell. I wasn't sure what the question is 🙂
Wes - www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control... 🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.