Twin carbs = Twin throttlecables?

[Gompo]

Just bought some twin 40's for my Mk2 and the bloke i bought them off said it was best to run them with a twin throttle-cable set up - as if you use a single one it will pull the linkage [Magard variety] to one side, and not work properly? Something like that anyway, I am not all that clued up on carbs...

Anyway, do i have to run twin throttle-cables? Although i've seen quite a few cars fitted with twin carbs with them, it doesnt seem like everyone botheres.

Cheers, Greg.

[gary_tholl]

For my dual 48's I went with a linkage setup. It does have twin cables, but only for a short distance, they are then connected to a single to the throttle.

The linkage mounts on the top of the rear carb, and uses little rod-ends that reach down between the carbs to actuate the throttle plates. Works like a charm.

Gary

[accident]

the guy is full of sheet,twin cables are a nice add on,however twin return springs are a really good idea.
as a stuck open throttle is a really bad plan

[boredpilot]

On my none turbo midget which has standard twin carbs, there is only one throttle cable, this pulls the throttle bar between the 2 carbs, hence both pull at the same time. 3 springs then return this back by pulling from the heat shield onto the throttle bar.

[Pigeon]

FWIW I'd reckon the setup on boredpilot's midget is easier to adjust than twin cables.

[grahambell]

Hi Greg,

Have run twin DCOEs using both off the shelf and home made linkages, all with only single cable and no problems.

Think the twin cable route is more of a race/rally thing as it means if you do snap a throttle cable you don't grind to a halt as the second cable will enable you to continue to the end.

Wouldn't bother for a road car.

[Gompo]

Hi guys, thanks for all the advice.

I've not got them fitted yet or anything - when I do and if i have problems with the single cable i will report back to you for more help... hopefully with some pics of the linkage and stuff.

Cheers, Greg.

[SXS]

I've had a throttle cable snap on me on the M25 at national speed in the furthest overtaking lane! Not a good feeling!!! I've also had the pedal bar snap on me on the M1, not a good feeling!

Bugger it, just go for 2 cables! Its worth it IMO, but definitely bang a good return spring on...

[Fatboy]

[quote=SXS ]I've had a throttle cable snap on me on the M25 at national speed in the furthest overtaking lane! Not a good feeling!!! I've also had the pedal bar snap on me on the M1, not a good feeling!

Bugger it, just go for 2 cables! Its worth it IMO, but definitely bang a good return spring on...[/quote]
Better still two good return springs....