good info!!! As you guys can see the changes wont go away....


Im confused by this one though "hat is exactly correct. I don't know the exact throttle position (50%, 60%, etc.) that causes the ECU to go to open loop, but I found that 80% works perfect. I set the Lo position at 80% and the Hi position at 81%."


i have my settings at 10 and 50 percent... hmmm

 

Wow, that is even better if all is true. You could make it so the VAFC doesn't do anything until you get on it at 80%. I really like that idea. Thanks a lot for the info!

 

I find it hard to believe there isn't some Honda Engineer who owns an s2000 on these forums and can tell us more about the ECU. I wish we knew some hard facts about when the ECU runs in open loop, if it does at all. Regardless, this is some great information!

 

xviper, are you watching htis thread? Maybe you can shed some light here.

 

Dave aka Xviper is running FI - a vafc will help with that application BUT it will not help in an NA >=04

 

yes it will... there is now way that it cant....


I read an artice in a magazine why all these ricers don't get the gains the expect from their cars. It because they dont tune their cars once they get modded, and suggested at the least come type of (v)AFC. Even for the s2k and the f22c, you still need to tune it a little bit to get all the power you can get. And like you have explained already we need all the power we can get out of engines, be an f20c or f22c....

I do understand what you are saying though, the f22c will see less gains than you would in an f20c especially one with a 00-01 ecu. But when you throw mods on the car you will want to tune it to get all the power you can get.

I know xviper is FI, but he has alot of knowledge and it was be nice to get his and maybe wisconsin's point of view on the subject...

 

dude why the term "ricer"

i am about as white as rice and have never modded my car to the point of some people

lose the negativity in your posts because they do not help your cause


there is NO question Dave knows this car better than most same holds true for wisconsin BUT Twized and others have already pointed out that the VAFC does nothing but look cool

 

VAFCs are not my area of expertise, so I can only relate what I've read but since this is 2nd and 3rd hand, there's really no point. The information would have even less credibility than what's been posted here.
It's obvious that some posters here don't have the maturity to have a civilized debate on anything as they can't tolerate another point of view. I'm not getting into this can of worms.

 

First you guys keep talking in circles .


First you need to explain to everyone what open loop and closed loop mean.

Then you can explain what short term and long term fuel trim mean .

This will help everyone else understand how the ECU works . One stated he wanted a Honda engineer to come and explain the S2000 ecu . Its not just the S2000 . They all work the same , some use a MAF and some use a MAP.But they all trim fuel to meet a A/F target ratio. And you can blame it all on the EPA as they are just trying to save the planet.

I would explain it for you but it doesn't seem like you read everything that has been posted and you just keep changing things to suit your explanation.


Steve go whore some where else this is a dead subject.

 

when I say ricer... i dont mean it towards you.. In the article I read they call them ricer's because they say exhasut 10 hp, headers 15 hp and add them up for a 25 hp gain but only gain 12... thats what was ment by that... (thats why u need tuning)


I really dont care how I come across. I'm never going to meet any of you and wouldn't care to any ways... I'm just trying to get some info out there and I'm not going to change my personality so I'm better liked on the internet.