Suitable gas carby for turbo 4.1 - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

T_Terror · 06-19-2004, 07:22

The next item on my parts list for the 4.1 Turbo project is a LPG throttle body/carby.

Ive got my heart set on a Gas Research unit as ive heard they have more scope for all out performance than other products.

Now Ive come across one for what seems like a good price but its only a 320cfm unit. Most of the high performance LPG engines i see run with a 440 GRA carby and 2 B2 converters.

Now, my question is will the 320cfm carby be adequate for a 200rwkw 4.1 Turbo? Im not into doing things half-right and would rather bite the bullet if ill need a 440+ carb in the future.

Thanks

82falcon · 06-19-2004, 16:05

No a 320 will not be at all big enough. Maybe 320 for a bod stocker, but even then the basic kit comes with a 350. I sopke to gas research as i'm doing the same thing. They have an underbonnet turbo kit for the 4.1- comes with carby, all the normal lines, converter, plus a metal plate on the converter that you need when running boost as well as the balance lines needed. The carby he recommened was a 440. The price for this was ~$875, then another converter was $160 and a metal plate for that one was $20. Just over $1000 for a fuel system, thats if you have a tank in already. But thats pretty decent seeing what the injection stuff goes for. Ill be getting the aforementioned kit just need some ca$h. Thats the last thing on my list of parts anyway.
To sum up i would wait til you can get the 440.

T_Terror · 06-19-2004, 22:02

440 it is then.

Looking at the price Gas Research quoted, it seems a little high. A brand new 440 LPGcarb is around $450 add another 150-200 for a converter and lines and its about 60-700. Dont know about the plate and other mods to suit turbocharging but you should end up with at least few hundred less than the $1000 total cost you got.

Also, is it essential to have 2 converters, or is 1 enough for resonable power levels?

I know im penny pinching but im a tight uni student and if cars were affordable then we'd all be driving around in Ferraris n Lambos wouldnt we.

DansEdgli · 06-19-2004, 22:05

the convertors are rated at 296hp each.
I am about to buy these parts next week as well as soon as I get paid. They will be going on my EB.
If you get on to them first let me know the costs, I will do the same if i get them before you.

Dan

82falcon · 06-20-2004, 17:27

Yeah i spoke to them thats where i got my prices from. OK, 450 for carb, 2* 200 for the converters, thats 850. $150 worth of lines seems reasonable. One converter would be enough for a not too powerful setup, but two seems to be the go. One guy on here, can't remember who, had a turbo on his eb or something, said it leaned out about 3000rpm. But the guy i spoke to said get 2.