How to make 30+hp for $500 or less... (DX/LX F22A1 only)

[deevergote]

Sure he does. But he keeps his cool... and hands out the longest bans ever

Like me, he really only gets mad when people are disrespectful. Show respect, and you can argue all you want.

[sandman61377]

Show respect...

Always.
I also don't want him to think I'm a moron.

[sandman61377]

So, anyway, getting the A4 header and h23 intake mani should add about 10 hp to an A6? Send the the throttle body to maxbore, short ram and intake, should run around $410? $100 for maxbore, around $60 for the oem honda parts from a junkyard, 200 for 2.25" exhaust (piping and labor only), and $50 for a cheap short ram. Should add a minimun of ~20hp to an A6? I already have a short ram (K&N), and a higher-flow muffler (not sure of brand), and for some reason I think I measured my exhaust and it WAS 2.25"? I'm not sure (I measured it over a year ago), I'll measure it again.

[b3nsonx]

hey, if i use the h23 throttle body, will there be fitment issues?
does it fit into my AEM short ram intake like the stock throttle body?

[deevergote]

The H23 throttle body is wider, so you might need to stretch the connector. The intake will be a little narrow, but it'd work. A 3" intake pipe would probably be best.


I can't say for sure what those things would add, but I would think 20 at the crank would be a fairly reasonable conservative estimate. This, of course, is assuming that your engine isn't in lousy shape to begin with! On a healthy engine, the gains should be decent.

[sandman61377]

Yeah, which in my case means its seal & gasket replacement time.

[b3nsonx]

how much would i have to stretch my connector?
can i get some measurements in the differences in diameter?
i dont really want to rip the connector or anything...i only have one

[lo-specials]

Or get this engine like I have


Max output : F20A7 147 PS @ 5600 rpm (PGM-Fi)
Max torque : F20A7 19.3 kg m @ 4400 rpm (PGM-Fi)
Bore × Stroke: 85.0 × 88.0 mm
Displacement: 1997 cc
Valve Configuration: SOHC, 16 valves

[deevergote]

Or get this engine like I have


Max output : F20A7 147 PS @ 5600 rpm (PGM-Fi)
Max torque : F20A7 19.3 kg m @ 4400 rpm (PGM-Fi)
Bore × Stroke: 85.0 × 88.0 mm
Displacement: 1997 cc
Valve Configuration: SOHC, 16 valves

True. But in the US, that engine would cost more than $500.


b3nsonx, I don't have an exact measurement (I'll see if I can get one tonight, it would be helpful). Regardless, connectors are easy to come by. 93twodoorLX got his F22 AEM SRI on easily enough, I believe using the stock connector.

[sandman61377]

Or get this engine like I have


Max output : F20A7 147 PS @ 5600 rpm (PGM-Fi)
Max torque : F20A7 19.3 kg m @ 4400 rpm (PGM-Fi)
Bore × Stroke: 85.0 × 88.0 mm
Displacement: 1997 cc
Valve Configuration: SOHC, 16 valves

What does that translate to in hp and lb/ft?

[b3nsonx]

h23 throttle body + h23 intake manifold + throttle body spacer = good idea?

[esskater892]

so like i think i just fell in love with my f22a4...
i just need a diff intake mani. throtal body. cam. something else and ehaust. which im getting soon.. just gotta save 50 $ more

[deevergote]

h23 throttle body + h23 intake manifold + throttle body spacer = good idea?

Throttle body spacers do nothing for us. You might be able to make use of plenum spacers, though.

[b3nsonx]

the plenum spacers that i saw were for the vtec engines..

[deevergote]

They should work just as well. Scott, feel free to chime in if I'm incorrect.

The H23 and H22 plenums are the same. Which means that they bolt up the same. Which means an H22 plenum spacer (or two, you can double up), will fit. Lengthening the runners (which is what it will do) should provide some extra power. How it will translate to the F22, I can't say for sure. I don't see why it wouldn't provide the same sort of gains, though.