JDMilanoEG

I have almost 80k on my S and im thinking about the near future of my car. Here is my idea that theoretically should work.

04-05 2.2L block.

Keep my current intake mani, header etc. etc.
Keep my 02 ecu and transmission.

The issue is will revving the 2.2L to 9k be an issue?

So pretty much I want the extra torque of the 2.2L but with my tranny's gear ratios and my 9k ecu. Will I have to get a piggyback fuel upgrade of some sort to compensate for the motor size difference? Any input would be greatly appreciated.

90crvtec

There's a member on here running the 2.2L with an '03 ECU I believe, hasn't had a problem yet if I recall. Do a search, I know for a fact that the 2.2 has been swapped into AP1s before. IIRC the injectors are the same on the AP1s and 2s but don't quote me on that. Can probably find out with searching.

I don't know about mounting the 2.2 up to the AP1 transmission. I think the member of this board with the 2.2 swapped AP1 also used the AP2 transmission that came with the engine. It's been a while though, so I'm fuzzy on details.

MULDER

Oh wow... where to begin....

Oh I know.. nip it in the butt......







DUDE, YOU DRIVE A HONDA!



As long as you are keeping up regular maitenance and aren't beating the engine up it'll run alot longer than 80K.

TheWingMang

If the 2.2 motor redlines at 8, you probably shouldn't run above that unless you find the weak point and take care of it. I don't know specifically, but I think in most motors (as a general statement) parts of the valvetrain (springs, retainers, possibly cams) are the weak point. Replace those with more solid aftermarket versions, then it'll be safe to rev to 9. Without doing that, maybe you won't have problems, but you'd be asking for it IMO

DaveOnLI

Two people here the NYC area have done this swap. You do not need to upgrade your injectors. The transmission will bolt up fine - it's the same housing.
As MulderATO said you should have plenty of life left in what you have as long as it's maintained. There's a member on the board with 160K on his car and many of those miles have been supercharged.
If your current setup fails then consider the swap.

JDMilanoEG

Yeah I plan on going vortech at some point. I also plan on only getting into this venture if my stock motor fails at some point. If it doesnt then ill still b rockin the 2.0. I thought the ap2's redlined at 8400? If so...how much extra stress is there on the valvetrain with another 600 rpms? Probably more than most would think.

DaveOnLI

The valvetrain isn't the issue.
Honda already builds a valvetrain capable of 9000.

jzz30

its rod ratio.

90crvtec

As far as the swap is concerned, the heads on the 2.0 and 2.2 should be identical. The exception is that Honda used stronger (read: slightly heavier) retainers on the 2.2 motors. These are recommended by several members of this board as a replacement to the AP1 retainers as they are less prone to cracking. The point I'm trying to make here is that the 2.2 valvetrain is more than capable of the 9000RPM redline experienced by AP1 owners. What is less certain are the extreme pistons speeds of the 2.2 motor when revved to 9000RPMs. Again, there are people that do this and have not experienced problems however, its impossible to say what this does for engine life in the long run. I say Honda set the rev limit at 8400 for a reason. BUT, Honda is also very conservative and have a tendency to engineer tolerances into their products that are higher than one might expect.

05berlinas2k

i would only run to 9k if i had an FI setup!!

that would take all the strain off the intake valves which are most likely the ones to go!