Bigger engine .... What boxes are you running ?

[Bobster]

I'm thinking of upgrading my engine next year to something that can get up hills and basically keep up with modern traffic.

Current thinking is either a 1776 or 1955 but I've been told that realistically I should think about shopping the gearbox too to get the most out of it (which may not be a bad thing given the crunch on 3rd!!).

One option would be to hunt out a 6 rib but just wondering what you guys either larger than stock engines are running (and where you sourced them)

Cheers people

 

[K@rlos]

Just fitted a Rancho box to mine. My bus has a hi-po 2110, when it's running again I'll let you how it goes.

 

[Tofufi]

I've banged on about it so many times before, so apologies :lol: - I'm running a Porsche 901 5 speed gearbox on my 1600.

It dramatically lowers cruising revs and noise, and brings the gears closer together. Even with a 1600 mine will now comfortably sit at 65mph.

Current plan is to go for a 1955 or similar when I've the time to build one

 

[monkeyvanwestybike]

I've banged on about it so many times before, so apologies :lol: - I'm running a Porsche 901 5 speed gearbox on my 1600.

It dramatically lowers cruising revs and noise, and brings the gears closer together. Even with a 1600 mine will now comfortably sit at 65mph.

Current plan is to go for a 1955 or similar when I've the time to build one

Thats the one! 8) ... :lol:

 

[The John66]

Mine is a modified 002 box for my bus. Pete at cog box has built it and it should give me decent motorway cruising speed. 4.57 final drive with a 0.82 forth gear and ZF LSD. The van will be running a 2276cc which the gearbox has been tailored for.

60mph at 2900rpm
70mph at 3400rpm
80mph at 3900rpm
90mph at 4400rpm
100mph at 4800rpm.

I will be running 16" fuchs with 195/65/16 tyres on the back. Quoted figures are from John Maher Racing gearbox calculator.

 

[Tofufi]

Mine is a modified 002 box for my bus. Pete at cog box has built it and it should give me decent motorway cruising speed. 4.57 final drive with a 0.82 forth gear and ZF LSD. The van will be running a 2276cc which the gearbox has been tailored for.

60mph at 2900rpm
70mph at 3400rpm
80mph at 3900rpm
90mph at 4400rpm
100mph at 4800rpm.

I will be running 16" fuchs with 195/65/16 tyres on the back. Quoted figures are from John Maher Racing gearbox calculator.

Your motorway/top gear RPMs are very similar to the Porsche 901 I've got.

How do the other gears fall?

The Porsche gearbox I've got gives 3000RPM =
1st gear = 16MPH
2nd gear = 28MPH
3rd gear = 40MPH
4th gear = 50MPH
5th gear = 61MPH

It's important to consider the gaps between the gears too, although probably more so on my little 1600 engine than a stout 2276!
You just don't want to be revving the knackers off it in one gear to then be not revving enough in the next...

 

[The John66]

Not sure of the ratios he has used for 1 2 & 3 though I know that 1st is longer than standard and 2nd to 3rd evenly spaced. 4th is a jump, which is why he has recommended this for a stroker motor. I think 3rd to 4th would be a struggle with a standard motor.

 

[maddog]

A fettled 091 built by Cogbox in mine.......

 

[Alex VW Heritage]

I have a Cogbox 091 in mine too, Mainly because I know Pete and at the time Rancho boxes were tricky to get hold of here in the UK.

I would these days price wise be tempted to look at:

https://www.vwheritage.com/shop/AC300002FF/rancho-t2-freeway-flyer-002-gearbox-68-71-1-6-type-eng/" onclick="window.open(this.href);return false;

Its basically an 091 in an 002 case.

If your planning on giving it serious abuse, I would go for:

https://www.vwheritage.com/shop/AC300002FFA/rancho-t2-freeway-flyer-002-gearbox-72-75-1-6-type-eng/" onclick="window.open(this.href);return false;

(This is the one Karlos has had) The only difference being it has the 'ears' on the bell housing so you can fabricate up a mid mount like the later bays have.

Remember we give forum members 5% at all times, but today we have a 10% offer running

 

[paul_q]

I'm running a 6 Rib with longer 3rd and 4th. Get your gearbox rebuilt by cogbox or bears with ratios to match your engine. A 6 rib gearbox in standard form was only attached to a 70 bhp motor.

 

[gas1man]

:lol: :lol: fettled is the right word...love it.

J & P

 

[K@rlos]

I have a Cogbox 091 in mine too, Mainly because I know Pete and at the time Rancho boxes were tricky to get hold of here in the UK.

I would these days price wise be tempted to look at:

https://www.vwheritage.com/shop/AC300002FF/rancho-t2-freeway-flyer-002-gearbox-68-71-1-6-type-eng/" onclick="window.open(this.href);return false;

Its basically an 091 in an 002 case.

If your planning on giving it serious abuse, I would go for:

https://www.vwheritage.com/shop/AC300002FFA/rancho-t2-freeway-flyer-002-gearbox-72-75-1-6-type-eng/" onclick="window.open(this.href);return false;

(This is the one Karlos has had) The only difference being it has the 'ears' on the bell housing so you can fabricate up a mid mount like the later bays have.

Remember we give forum members 5% at all times, but today we have a 10% offer running

The box Alex sorted me is brilliant, has completely transformed my bus! It cruises at 70 @ 3100 rpm so my motor is barley on cam and therefore has many more revs to make use of.