Carbs and a turbo
Discussion
Arfter building a zetec 16v turbo and spending a bucket load having it mapped and set up with autronic managment i thought for the next trick im going to build another on Blow through carbs. Reserch staeted and found out that dellorto turbo carbs is what i need so have sorced some and the fun begins....Has any one had anything to do with this kind of set up if so any tips or threads/forums to look at ??????
[quote=stevieturbo]Usually they are quite hard to set up to give decent economy, and good power with no flatspots or hesitations.
If you intend using a pair do Dellortos on a 1600cc engine, I'd say you will have more problems, as the carbs will likely be far too big for the engine.
Econemy isnt a problem as it is not my main car the engine is 2.0 16v zetec
the main reason is to get away from efi i know it is good but when it comes to power tuning its v expensive
if you need a set of larger injectors just kiss the pounds away on top u may require a larger fuel pump remap etc cost just mounts up thats with out the rolling road cost with the carb idea the inithal (sp) cost will be high (as is arftermarket managment.) but if more fuel is needed its only a set of jets required which are 50% plus cheaper than injectors. Its not all about doing some thing on the cheap its something diffrent and a diffrent approuch to a solution to a problem it is easy to go and spend 2k plus on managment and mapping.
If you intend using a pair do Dellortos on a 1600cc engine, I'd say you will have more problems, as the carbs will likely be far too big for the engine.
Econemy isnt a problem as it is not my main car the engine is 2.0 16v zetec
the main reason is to get away from efi i know it is good but when it comes to power tuning its v expensive
if you need a set of larger injectors just kiss the pounds away on top u may require a larger fuel pump remap etc cost just mounts up thats with out the rolling road cost with the carb idea the inithal (sp) cost will be high (as is arftermarket managment.) but if more fuel is needed its only a set of jets required which are 50% plus cheaper than injectors. Its not all about doing some thing on the cheap its something diffrent and a diffrent approuch to a solution to a problem it is easy to go and spend 2k plus on managment and mapping.
ignition will be a electronic dizzy. I purchesed the following : carbs inc a selection of 40 jets,emulsion tubes, chokes and compleate rebuild kit) linkage webro fuel pump and a fuel pressure regulator for 150 quid the in let manifold is going to be a further 90 quid the only thing i have to find is a plenum chamber this may have to be a one off but this is no problem as my uncle has his own machine shop this is only going to be an experiment just to see if it is viable the real plan is to turbo through a set of jenvey throttle bodys. Whith the reserch i have done over the last few months i have found that most carbs can only take around 3-4 psi of posetive boost im looking to run 9psi plus.I have once bought a set of injectors off e-bay paid 120 quid for a set of beige injectors for my fiesta rs turbo 3 of which were buggerd so i realy paid 120 quid for one injector some thing as critical as an injector i would never buy second hand again
Boosted Ls1 said:
Why would anyone suggest a limit of 9psi ?
Maybe the stock compression is to high?
Boosted.
no one has suggested 9 psi thats what the cvh ran in the car so am using that as a start point i am aiming to run 14psi later on the dellortos i have will take up to 25psi reliably
>> Edited by jimmyfish on Wednesday 21st December 20:17
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