its an australian weber ida efi twin throttle body kit

 

I've seen that one eBay... Someone posted that here. It looks great but I wonder how it performs...

FS

 

i have asked the seller how the performance is but i have not heard back yet...maybe on a business day i will

 

They are standard fair on any n/a injected car here, no one really uses the holley type or any other type of inlet. Come in a range of sizes too, what size is for sale?

 

Put it this way, it will **** on any carb setup you can think of.

 

i believe they had it in 48mm, 51mm and 55mm

 

what could be the performance output of these...

 

48mm would be what you would want for a streetport, maybe a 51 for up to big bridge and 55mm for PP and turbo engines.

Ive seen up to 300+ from a well sorted n/a engine and well over 500hp from a turbo.

Basically all it is is 2 x 48mm holes with a throttle in the middle

 

while on the subject...to put this on the maf would be removed...what type of computer system would be best to tune and make up for the maf

 

Any aftermarket ECU from Microtech to Motec would do fine. They'll run a MAP sensor. As for which is best... Well, that's a matter of personal preference mostly (unless you can afford Motec). Basically whatever your tuner is most comfortable with and uses the most.

My brother will be using one a 13B bridgy using a Microtech MT4, and hopes for some decent numbers for a street car. Not sure exactly what numbers though.