When I measure the throttles I have I get a touch over 2 inches, coming in just over 50mm. I'm using two of these throttle bodies. They're taken off of 2.8L engines with EFI. These engines were rated in the 135 HP range if I remember correct (maybe less). With two that gives me enough airflow for 270 HP which is much more than I plan on making without boost. I'm still worried that the throttles may be too bit to use, at least without progressive linkages. I can't imagine 3 70mm throttles. Are you sure they aren't too big?
I'm putting this onto a 230. I intend to eventually get a 292 or rebuild the 230 with my 250 crank, not sure when either will happen. I just keep it in mind for when I have more potential to feed with this intake.
Your intake, did you mean to say it would be forged? Typo? I've never heard of a forged intake.
How do you intend to make your intake? I'm having trouble coming up with a slick design that both meets the weird port shape (with radii) and has injectors mounted. Not to mention the weird mounting patterns for the L6 intakes. The thing I ended up deciding on was machining the thing from mild steel. I have 3 blocks that are machined out. They flow the intake from rectangular to oval/round for runners while supporting injectors, bolt surfaces and fuel rail hold downs. Then these bolt to tubing for the runners and the plenum and such.
Yes, the MS comes with the MAP sensor on board. The one sold with the kits now is good until ~21 lbs of boost right out of the box. (I have this one). Just go on
www.megasquirt.info and there's everything you need there (including purchasing). There's complete units on ebay as well if you don't want to build and test it yourself.
That's a small view of my computer model of what I'm building.
