maf and throttle body diameter

[The Radium King]

very good to know. were you able to make the stock aos piping reach as well?

regarding the technotorque, i think it solves part of the problem but not all of it. when the air hits the 'T' it has to turn left or right around a sharp 90 degree corner. as a result, the air will cavitate in two places - at the split on the outside of the turn, and at the sharp corner on the inside of the turn. the technotorque puts a splitter on the outside of the turn, but doesn't do anything for the sharp corner on the inside of the turn.

if you think about it, what will limit airflow is the restriction caused by the inside of the turn; this is why the ipd product posts better results than the technotorque.

but it's all better than stock, and the TT is a better value than ipd.

[j.fro]

For the AOS, I had to flip the T upside down, since the AOS is on the opposite side in the 996. I bonded a piece of PVC into my AOS as one fitting, then cut the factory fitting going into the T as the other fitting. Between them I have run a piece of rubber heater hose, secured on each end with screw clamps.
I'd like to ditch the factory AOS altogether and run a Moroso unit, plumbed in with stainless hose.

One more note, the bigger TB and change in the position caused by the different T causes the intake tubing to rub the engine cover. I had to use foam/aluminum HVAC insulation to create a barrier to prevent the intake tube from having a hole rubbed through it.

[jacabean]

i have been taking a closer look at this mod. the IPD plenum looks like a high quality piece but i just can't justify the price plus the larger throttle body . Does anyone think that this part could be made out of epoxy or fiberglass construction. two molded halves bonded together?

[Johnny Danger]

Is it possible to interface a 74mm throttle body with the oem plenum or a TT2 using silicone reducers ? If, so, would it net a positive result even though the plenum is much smaller by comparison ?

[jaykay]

Originally Posted by Johnny Danger

Is it possible to interface a 74mm throttle body with the oem plenum or a TT2 using silicone reducers ? If, so, would it net a positive result even though the plenum is much smaller by comparison ?

I think the walls may be too thin to modify.....see my #4 post. It looks like it is best to try a 996 Tee as jfro has done