I would have wanted to .... but then again we couldnt get an ap1 ecu for free from honda ..... and we spent most our team money on parts
As far as the shifting at 8 because of not enough power gain at 9 is what I heard down the grape vine.

 

someone put an ap1 ecu on an ap2 and lost some power. not much, and nothing an e manage or v-afc couldn't fix.

an ap1 ecu with an emanage sounds like a good option for an ap2 anyway. much cheaper than standalone or an aftermarket ecu. but you would need either an ap1 cluster, or a shift light to determine where you're shifting, and i wouldn't take it past 8500. imo the ap2 only needs a little more revrange.

 

I'll say this, a tuned EMS map for a F20C is too lean and has too much timing for a F22C. The stock EMS may run rich enough and conservative enough that it doesn't matter though. I had to add 10% more fuel to a F20C AEM EMS map to get it to run my F22 safely.

Tim

 

It has been said that using the earlier, richer ecus (00-01) is the trick set up.

IIRC Billman has had several that DO run to 9000 regularly and they have all stayed together.

It seems that most who say it won't do it have never tried it.

The threads were also full of people who said you can't turbo the engine until it become commonplace.

The naysayers quickly jump on the bandwagon once they are proven wrong and conveniently forget they ever said otherwise.

I know of 2 who have done it for over a year, the cars are not streeted, they are track only. No problems to date.

 

I have seen the exact opposite posted. Please find the posts and give us links.

proof? you want proof? how about the people like Ultimate Lurker and others that have posted the exact reasons why you shouldn't redline an F22 to 9000rpm on a regular basis. The only proof so far has been the exact opposite of what you're claiming. The rod angle and stresses are too great. Again, revving an F22 to 9000rpm is like revving an F20 to 10,500+ rpm.

If you know more than those people, please feel free to try and convince us of that.

threads please?

 

here. education is your friend.

https://www.s2ki.com/forums/index.php?showt...dpost&p=5789529
2.2 AP2 engine failure with an AP1 ecu. this was at 8800rpm.
picture of the pistons:


http://www.itepsa.com/samples/SIET199907_CH1_MAIN.PDF
On page 6, Honda says that they reached the critical level of piston speed (24,x m/s) and piston acceleration (45xx m/s

 

Not really arguing with your point but you have to confess this isn't just an "AP2 with AP1 ecu". It's an unknown block in a race car not run in or tuned and thrashed to death.

Hardly conclusive.

 

Every post I've ever seen of blown 2.2s running to 9k have all had the "poor tune, running lean" added to it. Is there a connection, methinks so.

 

it's not an unkown block in the sense that it was some random block they bought. they said it was from an AP2, and it looked in great condition, but they were unsure whether it really only had 7 miles on it or not. either way, if there had been something wrong with the block BEFORE they put it in, these guys of all people would have seen it.

also, it only had a poor tune for the FIRST track day. the other 5 or 6 before the engine blew it was tuned just fine and running as it should have been.

as for the "race car" aspect, our friend here said he has two AP2 "race only" cars that have been racing fine for 2 years. yet these guys who are probably some of the best at what they do couldn't get one to last for 7 races. my point is, it is not a question of IF it's WHEN. period.

 

[QUOTE=Wildncrazy,Apr 18 2006, 07:53 PM] Every post I've ever seen of blown 2.2s running to 9k have all had the "poor tune, running lean" added to it.