As above just wandering whats the best throttle body to use on custom inlet plenums.

Will be a zetec turbo engine ,Think I'm gunna go for the rover inlet bottom section as they line up nice with the zetec head and the ports are vertualy the same. I also make the conversion plates so the rover section bolts straight on the zetec head.. I think i'll just make a simple sqaure/rectangle box section plenum, also were can i get trumpets for the top half

current engine in my escort , planning for the new engine for my focus.


I am aiming fore the 300 bhp mark so will need a decent size T/B .

Any advice welcome.

Nath.

 

im going to use a cossie throttle body

 

you could 300bhp through even the smallest ever TB fitted to a standard zetec when its on a turbo.

anything around 50mm is a generally good ballpark for that power level though, if you go to big you lose resolution

 

you know your stuff chip

 

yeah the rover one is a good choice sitech racing on here used a rover
bottom and had a custom plenum but he is using a new inlet manifold
now saw it in one of the ford mags
there are pictures on the sitech site here that should give you some ideas
to help you along
http://sitechracing.co.uk/gallery-si...t=rss&hl=en_US