too much air flow???

[cleanjdm]

soon i will be doing the a6 manifold swap on my a1 in the silver accord, and i also would be doing the h23 upper plenum. now i saw the thread with the blacktrax iab spacer and it was a good 5hp, but that was dynoed on an stock a6. so im wondering if i wanted both the spacer and the h23 upper plenum if this is ok to do and wont be like too much for the engine. would both give me a good amount of hp/tq?

[foamypirate]

It will provide a nice bump in power.

[Bcozzi71]

yea it would be fine. I think it would be a great boost in power.

Just an idea do the h23 manifold instead the A^ one casue you can have a bigger throttle body and intake.

[steelbluesleepR]

there is really no such thing as too much airflow in an engine as long as the fueling system can cover it. what you're probably alluding to is a sacrifice of torque for higher horsepower.

theoretically, the smaller the passage the air is forced to pass through, the faster the air is forced to go, helping low-end torque. conversely, the more sheer volume of air available for the engine, the better the volume. it is a fine balance between torque and horsepower, and requires just the right passage to get the best of both. this is why, for example, getting a head ported by someone who has no clue what they are doing could actually make the engine perform worse than stock.

there are mods that retain or improve air speed while simultaneously increasing the volume of air available. the h23 plenum with the spacer is one of these rare modifications. get the plenum (with the bigger, associated throttle body) and the spacer, bolt them to your a6 runners, and your butt-dyno will thank you.

[Leung]

with that manifold spacer and the new manifold, will he have enough room still to close the hood down?

[cb7stum3]

can never have too much airFLOW


get an FPR and tune your car to keep it from running lean

[bagoon316]

i have an f20a dohc and the upper plenum is taller than the h22 plenum. i thought the f20a i/m was the same as the f22a6. it has the iab plate with the butterflies, so i took it all apart, added an h22 iab plate, and put my f20a upper plenum back on. it almost goes up to the black plastic lip on the firewall where the hood rests.

so i then added the h22 upper plenum instead, and its smaller (not as tall) but the t/b is obviously bigger when you put them side by side.

what are my options/better thing to do in this situation?