5 GT Turbo Carb fail

[Xrhstos]

good evening guys! nice to meet you! I have a renault 5 gt turbo 89 which I have rebuilt from scratch with a new engine because before it had an f4r! my c1j engine works fine, I just have one issue, if I lower the revs below 1100, it also shuts off with closed pressure, one revs up properly and one confuses the turbo, I have a genuine one with 1 mm bigger wings! in the carburetor, what Ziggler is recommended?

 

[sparkie]

Wings? Ziggler?
It sounds like your idle jet is blocked.

 

[Xrhstos]

sorry, my english is not very good! my turbo is original but I have changed the exhaust and I have installed an intercooler and I would like to raise the pressure up to 1 bar, what port is it recommended to change to the carb

 

[sparkie]

There's 3 different ways to increase the fuelling.
1) increase the main jet to 1.3mm, but this will mean that the carburettor will add more fuel across the whole rev range, on and off boost.
2) swap the air corrector and 1st stage enricher. This will make it richer in the upper rev range, but it will also be richer in the transition between no boost and boost.
3) drill the 2nd stage bush to a 1.2mm, this will give you additional fuel on boost. This is the favoured method these days.

 

[Xrhstos]

Wings? Ziggler?
It sounds like your idle jet is blocked.

There's 3 different ways to increase the fuelling.
1) increase the main jet to 1.3mm, but this will mean that the carburettor will add more fuel across the whole rev range, on and off boost.
2) swap the air corrector and 1st stage enricher. This will make it richer in the upper rev range, but it will also be richer in the transition between no boost and boost.
3) drill the 2nd stage bush to a 1.2mm, this will give you additional fuel on boost. This is the favoured method these days.

so in method one, I should leave 1.2 from the factory, but it's already a screw, is it the one in method 3? do you have any photos