f22a 101

[owequitit]

No, the H22 in the Euro R (Type R for some generations) was a single stage single runner manifold. The "standard" H22 manifold has IABs just like the H23 and A6. It is pretty much identical to the H23 manifold.

[gloryaccordy]

IAB's? I'm guessing that's some abbreviation for the extra runners...? Cool. Anyone know if the H23 mani has different dimensions from the A6? I.e. is the plenum bigger, are the runners shorter? Anyone feel a diff. from the A6 to the H23 mani?

[owequitit]

The plenum on the H23 mani is significantly larger, as is the TB. I also believe the H23 has larger diameter runners, although the length may be similar. I haven't had them next to each other off the car. The A6 plenum is only larger than the A1/A4 plenum because of the extra volume required to contain the IABs (Intake Air Bypass).

You would most likely notice a larger difference with the H23 mani if you had some fairly significant mods that increased the high rpm breathing on the F22 (cam, Port and Polish etc.) but there probably wouldn't be a whole lot of difference otherwise.

One thing to consider might be an overbore Throttle Body. You can have your stock one bored, you can get a stock H23 body or Skunk2 apparently makes one that works for our cars as well as the H22/H23.

[tomace234]

A/C and P/S are good to do...you'll prob. lose a little traction though from the weight loss (isn't A/C really heavy)? I'd trim weight from the rear before the front...

But yea all that stuff sounds about right, especially with a better clutch/short shifter. My clutch is slipping...if it wasn't my car would be in a whole other league of performance. It takes like 2 seconds to catch 2nd gear if I'm racing. I've seen basically stock F22 CB's chirp 2nd...we've got power. 15's are possible with an F22.

i agree...we have the power, i can usually chirp 2nd and i am working on getting my CB into the 15's all motor before i decide whether or not to boost it. stripping weight from the back is what i would do first too...

[alb_accord]

well for the price of the overbored throttle buddy hummmmm people kind of think twice for that.

[d112crzy]

or u can buy a dremel kit, and bore it out urself, u realy cant go wrong with doing porting out the intake mani and tb, just be carefull. now the head is a diff. story, i would send that in.