protejay

did *some* experimenting and there are definitely *some* snags....

the neato thing is the 2nd gen upper manifold (fsm refers to as the 'dynamic chamber') is a full 1" taller than the 1st gen's dynamic chamber!
4" vs 3" - a 33% increase in that dimension! strikes me as a huge difference....i did not take my dynamic chamber off so i still haven't been able to really compare the insides, but from what i *could* see, the 2nd gen is 'cavernous' compared to the 1st gen's...

everything else being equal, that increase in height alone would definitely make the 2nd gen's 'torque producing runners' longer than the 1st gen's; and i was ALREADY thinking that they were longer simply due to the outside casting differences of the 2....

at this point i'm gonna be trying to bolt up the 2nd gen's dynamic chamber(dc) with our 1st gen throttle body(tb) and lower manifold.

the throttle body's are the same bore, but completely different - for one thing, the 2nd gen's is taller than the 1st gen's. snag #1 : the 2 top bolts appear to be in the same locations - the 2 bottom bolts, though, are spaced about ~1/8 farther apart on the 2nd gen.....so the 1st gen's tb will not just *bolt up* to the 2nd gen dc. i'm looking to 'tap' some new holes to fit it...

and there's going to be other problems...i dont for sure how the 1st gen tb/isc valve will integrate with the differently casted 2nd gen dc. but if i can get it to bolt on, hopefully there will be a way to get it to work

also, as i said in another post, there is NO air valve mounting plate on the 2nd gen dc. the air valve is solely used to increase the idle for cold starts - as the car warms, the air valve shuts off its flow of air.... i think my oem air valve is bad (or maybe just dirty) because of my constant high idle. so i'm willing to try going without it.....

incidentally, the air valve AND isc valve are both plugged into the cooling system.... in turn they mount to the manifold....in turn, the manifold gets HOT!