You cant see from the pic, but there is a vacuume buss connecting all the cylenders together, so the IAC work's and have a constant vac source for the brakes, MAP sensor and other vacume crap.drivinonthinice said:How are you going to work the IAC? I don't think she will idle with only one cyl getting air or do you have them all tied in some how?
All the Honda boy's are doing it now. I did a lot of reading on Honda-Tech, Home Made Turbo and vwvortex before I started, and a few other ITB sightsneuspeedescort said:sexy! a guy on HMT did this about a year ago with 4 yamaha 1000 (dunno the motor or bike) t/b's. if you need any help with your set-up look into his post over there. i think its a sticky but not sure what section. this set-up will make alot of torque also. its a design widely used in circle track racing.
It only stick out a tiny bit past where the stock manifold ends. There's room for filters.SgtRauksauff said:That is fantastic. It puts a smile on my face.
what do you get for clearance from the firewall?
If you look inside of the manifold, past the first throttle plate, you will see a second throttle plate. That is the "split port" throttle plate, stock from the factory. If Ford does'nt have a problem with a throttle plate directly before the head port I think I'll be OK with one right before that.siragan said:Here comes the math man...
I honeslty think that a design like that may actually hinder your performance. The purpose of the plenum is to have air kinda "settle down", then accelerate through the runners and into the cylinders. By putting throttle plates there, you're probably going to completely screw up the momentum that the air has, and chances are you're going to get some really weird flow characteristics that I won't even attempt to touch on because my education currently doesn't extend that far. If I were to guess at it though, from what I do know, chances are you'd have a ton of turbulence at anything other than WOT, and your total specific mass flow would decrease substantially. However, you may increase the mixing capacity of fuel and air in the cylinder. I dunno. It's complicated.
Regardless, it looks like you're doing a nice job, and I hope it works out for ya.
Thanksfixitmattman said:Mad props :wink:
How do you plan to do the throttle linkage?
Is there going to be enough room to mount the plenum directly on the TB's? Basically, how big is your plenum going to be?