Stock 2.0 and 2.2 Dynos?
Joined: Jun 2002
Posts: 42,315
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From: Central Massachusetts
I don't know why some AP1 owners can't concede HP/tq superiority to the AP2... Duh... In a naturally aspirated car like ours, there's no substitute for displacement. And, without some serious race-hardening, you'll never see over 9K in a street engine. So what if the AP2's redline is a little lower.
Numbers-wise, there's no question. The AP2 engine has more power on tap than the AP1. Whether that translates to faster on the track is up to the driver and the course.
Numbers-wise, there's no question. The AP2 engine has more power on tap than the AP1. Whether that translates to faster on the track is up to the driver and the course.
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Joined: Nov 2004
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From: UCF Knights!
Put an '03 ecu in that '01 and the dyno plots will be much closer. Honda had very conservative (read: RICH) fuel maps in the upper rpms early on, and as they recieved more feedback on these engines, they slowly leaned out the fuel maps. An 03 ecu swap into an 01 car can yeild results of 5-10 rwhp, so basically, the f20C is limited from factory in the ecu. Trim your AFR's up and advance the timing and you'll make really nice, useable power in the f20c. Even before the itb's, I could walk ap2 with an AEM EMS fully tuned on my otherwise stock car.
F22C (americanized wannabe)
Joined: Jun 2002
Posts: 42,315
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From: Central Massachusetts
Originally Posted by Chris S,Nov 7 2006, 09:16 AM
IIRC, the 2.2 is now being used in other, if not all, geographies.
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Joined: Dec 2005
Posts: 10,106
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From: Connecticut
Originally Posted by Chazmo,Nov 7 2006, 09:26 AM
I don't know why some AP1 owners can't concede HP/tq superiority to the AP2... Duh... In a naturally aspirated car like ours, there's no substitute for displacement. And, without some serious race-hardening, you'll never see over 9K in a street engine. So what if the AP2's redline is a little lower.
Numbers-wise, there's no question. The AP2 engine has more power on tap than the AP1. Whether that translates to faster on the track is up to the driver and the course.
Numbers-wise, there's no question. The AP2 engine has more power on tap than the AP1. Whether that translates to faster on the track is up to the driver and the course.
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Joined: Jul 2004
Posts: 803
Likes: 1
From: Annapolis, MD
Originally Posted by Chris S,Nov 6 2006, 08:49 PM
Who really cares? There's no class rules, tax benefits, or any other practical reason in the US to limit displacement. Only benefit to 120hp/L is if you get off on magazine racing. 
I love the F20C, but not b/c it has some magical hp/L #.
I love the F20C, but not b/c it has some magical hp/L #.
who freakin' cares about hp/ltr?
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Joined: Mar 2006
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From: Asheboro, NC
Originally Posted by wildcardtrd,Nov 7 2006, 09:28 AM
Put an '03 ecu in that '01 and the dyno plots will be much closer. Honda had very conservative (read: RICH) fuel maps in the upper rpms early on, and as they recieved more feedback on these engines, they slowly leaned out the fuel maps. An 03 ecu swap into an 01 car can yeild results of 5-10 rwhp, so basically, the f20C is limited from factory in the ecu. Trim your AFR's up and advance the timing and you'll make really nice, useable power in the f20c. Even before the itb's, I could walk ap2 with an AEM EMS fully tuned on my otherwise stock car.
In other words do you just swap ECU's and it instantly takes, or are there a few other hidden steps involved...??
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Joined: Jul 2005
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From: formerly versionJDM
i never really understood why some guys right over 200cc. yes the AP2 makes on average about 10rwhp over the AP1. MY06+ are making 215 or so on dynojets.
once tuned the F20 becomes a formidable little motor.
once tuned the F20 becomes a formidable little motor.