S2000 STR prep resource
Originally Posted by no-cones,Jul 28 2009, 04:42 AM
Confused------------> I thought that the Emanage is a piggy back unit and therefore legal. Where am I wrong?
14.10.F.2: Electronic components may be installed in-line between an
engine
Thank you, angryfist. I did not realize that it altered the signal going into the ecu. quote "You can run an e-manage as long as you don't hook up the timing harness." <-----This still will help because I only want to control the vtec, AF and what a vfac can not the rev limit.
Thanks again
Thanks again
Originally Posted by no-cones,Jul 28 2009, 05:42 AM
Thank you, angryfist. I did not realize that it altered the signal going into the ecu. quote "You can run an e-manage as long as you don't hook up the timing harness." <-----This still will help because I only want to control the vtec, AF and what a vfac can not the rev limit.
Thanks again
Thanks again
I *think* thenick's idea of AP1 ECU with VAFC is the only way to bump the rev limiter and have fuel control legally for STR in a pre-06 car.
Originally Posted by TheNick,Jul 27 2009, 01:22 PM
Yup what they said ^
You can actually use a different ECU and a piggyback. Which is what I'm doing. AP1 + VAFC
You can actually use a different ECU and a piggyback. Which is what I'm doing. AP1 + VAFC
I knew that the Hondata for my 07 made some nice gains, but was under the impression that you couldn't legally change the V-TEC parameters on the earlier cars.
Does anyone out there have any dyno results, or know the gains to be expected, on an AP1?
This discussion is changing my mind on what car would be best for the class. Up until now, it has been the MX5 all the way. But, if you can fatten up the torque curve of an AP1, that is getting me to think it might have a good shot.
In STR, the AP1 will be able to equalize the wheel/tire combo, which was in favor of the AP2 until now. It is lighter, and has better 2nd gear mph.
Hmmm....AP1's are getting very affordable...Hmmmm....
Originally Posted by angryfist,Jul 28 2009, 07:53 AM
Colin, the ruling is same as ST/STS allowance. Stock replacement cat only. No high flow.
'Catalytic converters may be replaced by aftermarket units. Replacements
must:
1) Be certified for use in that vehicle application by the manufacturer
or reconditioner,
2) Bear correct EPA-mandated labeling,
3) Be of the OE quantity and type (i.e. oxidation, three-way, etc.)
and
4) Be used in the same location(s) as the OE converter(s).
This does allow for high performance replacements, provided
they meet all restrictions herein."
Emanage - you can't hook up the injector harness either. It directly controls the injectors that way and skips the ECU. The only way to get it to work legally is to turn it into a VAFC.
Re: AP1 vs AP2 ECU - no I didn't verify the maps before hand. I'm not sure at all if they are the same. The box is exactly the same - so you can just pop the AP2 out and put in the earlier one.
I did throw a CEL this weekend on my car with the AP1/VAFC combo. I don't know what it is yet - I'm out of town all week and don't plan on hooking up to a code reader till this weekend. I think it has something to do with the VAFC. We ran the AP1 ecu alone a few times and had no issues, as soon as I lowered the VTEC point though - up pops a CEL. I'm not so sure I properly "activated" the VAFC though either. I'm not worried, I'll get it figured out - its not a real big deal to me because the car was running perfectly - if it was a bad CEL - I never would have actually been able to get onto the second cam or the car wouldn't have idled for shit.
Jeff - not sure where your logic is heading with the AP1 - it has taller gears and will have less torque than the AP2. There is no doubt in my mind that the AP2 is a much much better all around car than the AP1 for STR - especially with the better toe-steer curve in the rear. I don't think it will be lighter either - if at all, it will be negligible (ie - I took a bigger poop before the event than you did).
Any universal cat should be legal - same with the Berk Technology Cat.
[media]http://www.youtube.com/watch?v=bFvIxRf6Jnw [/media]
Take a gander at that folks - I still have some work to do on the mount - the car doesn't lean nearly as much as it shows in a couple of the corners. Time was 6th in PAX (using BSP pax) and 3rd fastest raw time at Sunday's event. I beat AS and STU - granted it was a pretty technical course and our local AS hotshoe didn't have his mojo - but it still makes me happy.
Make sure to click on "Watch in HD"
Re: AP1 vs AP2 ECU - no I didn't verify the maps before hand. I'm not sure at all if they are the same. The box is exactly the same - so you can just pop the AP2 out and put in the earlier one.
I did throw a CEL this weekend on my car with the AP1/VAFC combo. I don't know what it is yet - I'm out of town all week and don't plan on hooking up to a code reader till this weekend. I think it has something to do with the VAFC. We ran the AP1 ecu alone a few times and had no issues, as soon as I lowered the VTEC point though - up pops a CEL. I'm not so sure I properly "activated" the VAFC though either. I'm not worried, I'll get it figured out - its not a real big deal to me because the car was running perfectly - if it was a bad CEL - I never would have actually been able to get onto the second cam or the car wouldn't have idled for shit.
Jeff - not sure where your logic is heading with the AP1 - it has taller gears and will have less torque than the AP2. There is no doubt in my mind that the AP2 is a much much better all around car than the AP1 for STR - especially with the better toe-steer curve in the rear. I don't think it will be lighter either - if at all, it will be negligible (ie - I took a bigger poop before the event than you did).
Any universal cat should be legal - same with the Berk Technology Cat.
[media]http://www.youtube.com/watch?v=bFvIxRf6Jnw [/media]
Take a gander at that folks - I still have some work to do on the mount - the car doesn't lean nearly as much as it shows in a couple of the corners. Time was 6th in PAX (using BSP pax) and 3rd fastest raw time at Sunday's event. I beat AS and STU - granted it was a pretty technical course and our local AS hotshoe didn't have his mojo - but it still makes me happy.
Make sure to click on "Watch in HD"
Love the sound of the higher revs! Looks very smooth! Seems the car has plenty of bite but wants to come around? What is your take?
CEL when lowering v-tec? I wonder if the AP1 computer is missing something or getting a different voltage reading from a sensor designed for the AP2 computer?
Great advice on the hi flow cat. We need a list or something to include all the available/popular mods and allowed areas.
CEL when lowering v-tec? I wonder if the AP1 computer is missing something or getting a different voltage reading from a sensor designed for the AP2 computer?
Great advice on the hi flow cat. We need a list or something to include all the available/popular mods and allowed areas.



