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View Full Version : Fitting a R18 carb on a 5gtt



1988cab
05-06-2013, 22:46
Does anyone know if a Renault 18turbo 32dis would work on 5gtt with the right changes. New ones available on eBay but expensive! Wondered if it would worth it, or even work????

Bigfoot
05-06-2013, 23:35
Years ago it was looked into but worked out that there would be too many bits you will have to change over to the Renault 5 carb for this to work properly and won't be worth your whole doing so

Sparkie
05-06-2013, 23:58
they have a 24mm venturi too.....

Logg
06-06-2013, 06:16
I tried this many years ago.

I got it to idle fine but when driving it was mega mega rich so changed all the jetting to oe GTT but no change flat 10 AFR's at 20psi. I decided this was down to the smaller venturi having a greater effect on the fuel. The 18 carb ran just a 1.1 main jet but still managed to fuel for a larger cross flow engine.

1988cab
06-06-2013, 09:00
Thanks for the info, £230 can only use the main body and could never get the fuelling right sounds like a bad idea :)