View Full Version : Can someone design a new inlet manifold

Adam M
21st March 2003, 12:19
any takers?

Am thinking one per bank, with one servo controlled throttle body per bank.

Largish diameter and short tract, perhaps each pointing forward going straight to the exit of a standard intercooler split in two down the middle (like andy fs but the other way round.

Can have forward facing throttle that way, but can go either side of alternator, power steering pump and most importantly air conditioning compressor.


21st March 2003, 13:06
Have you been reading my mind?

Wand to do just that and put a chargecooler in the centre.

Manual throttles for now though.

I can only assume the "short inlet tract" bug is catching...


21st March 2003, 13:09
I can vouch for Pauls mind being read http://bbs.22b.com/ubb/biggrin.gif We were discussing this recently http://bbs.22b.com/ubb/smile.gif

21st March 2003, 13:22
Would you really want one per bank ( per the Jun car) as due to the firing order you would have both inlet valve openings overlapping, even worse with increased overlap cams.

One plenum for the front pair and one for the rear pair would be nice for the 360 degrees pulse separation http://bbs.22b.com/ubb/smile.gif Better still, 4 individual velocity stacks but it makes the intercoler pipework a bit tricky !

Adam M
21st March 2003, 13:35
nice thinking andy re pulses.

I would be up for individual velocity stacks, sod the pipework, how long is the car gonna be off the road? another year? I dont think so.

It sounds fun to me.

Paul, believe you totally and have not been reading your mind, but I can promise you it isnt patentable, so commercially you were sound anyway!

I would rather leave the work to you and reap the benefits as can be seen from recent events!

21st March 2003, 14:15
Adam, This what we were discussing on the phone??

Im not convinced on how this makes a difference..

what advantage is there to the throttle butterfly being closer to the port??

Is the idea similar to throttle bodys, when turbocharging you put an inlet plenum on the back of them and feed this via the turbo??

Confused as to the logic with this, but like a challenge http://bbs.22b.com/ubb/biggrin.gif


Adam M
21st March 2003, 15:03
this is indeed!

would have thought an inlet plenum would be one a heat sink and two an extra volume which would take time to pressurise.

I would want a straight feed direct fom the intercooler(s).