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Don't flame I did some research, I'm just trying to find some info on the stuff I could really find an answer for.
How much do VE motors run for and where do you guys get them from (online sources not shops)?
Also one thing that I find iteresting you guys use RPM switches to activate VVL. This sounds like a ghetto ass vtec controller. I mean I know quiet alot about civics and when you try to activate vtec that way you won't get as good gains unless you add some fuel to it therefore either using a vtec capable ecu, or vafc (or someother piggy back vtec controller, but from what I heard you can't use vafc on cars that come with MAFs don't know why). So do you guys add that extra fuel during change over somehow, or you just let it be?
I think that would be it. Thanks alot and please don't flame the VE newbie.
Oh yeah with JWT ECU how do you go about tuning the car later on? Is it tunable or you need to run some sort of the piggy back.
Cheapest Ive seen is around 1600 1700 bukks american.
And I really wouldnt recommend flaming rpm switches on a VVL board, we use everything from switches to mss to the VE ECU, and in case u havent noticed theres no aftermarket support for VVL, ure comparing a motor almost noone has to the most common, played out motor in import history which every company in the world makes parts for. VTEC kikks in at the same RPM, VVL has 2 different, so unless u want to program ur own standalone to activate, then ull have to do it our way.
And the JWT ECU is not tunable, ull have to send it bakk for reprogramming unless u want to throw a piggybakk on top of it.
yeah but what I'm asking are people adding more fuel when cross over takes place. By my understanding you will get more air coming thru the engine and it won't yeild a nice bump in hp without extra fuel. So what do people use to tune anyways? I'm pretty sure you can use afc on a car with maf (DSMs, maximas (lol) and so on use them) maybe you can't use vafc. I don't know I just won't clear this up for myself.
Not too sure about the JWT ECUs but I *** ppl with e-manage tune their MAF voltage to increase after kikk in. I guess u could say yes they add more fuel but they pre-set it on a RPM map instead of waiting for an AFC to take a reading and then balance it out when u start to run lean. Hope this helps.
yeah but what I'm asking are people adding more fuel when cross over takes place. By my understanding you will get more air coming thru the engine and it won't yeild a nice bump in hp without extra fuel. So what do people use to tune anyways? I'm pretty sure you can use afc on a car with maf (DSMs, maximas (lol) and so on use them) maybe you can't use vafc. I don't know I just won't clear this up for myself.
JWT has a fuel/ignition maps specifically for the VE, that is the point of the JWT ECU - it doesn't need to be tuned because it just works, plug it in and it is set up to run the VE. You just tell them your details such as what MAF, injectors (and possibly intended cam switching points?) and they re-program your ECU to handle it.
Other people are running programmable piggyback ECU's to control the extra fuel requirements and different ignition timing, such as the GReddy e-manage. These need to be tuned on a dyno of course.
Beacuse most people are runnning re-programmed DE ECU's, or even standard DE ECU's, they don't have the facility to switch the cams - which is where the RPM switches or GReddy MSS come in. The GReddy e-manage can switch cams aswell as, but it can only be used to switch both cams at the same time. One of the advantages of the VE is to swithc the cams independantly though so this may not necessarily be the best way to go, but works fine.
Most of this information has been pioneered by a few hard working people who have decided to experiment, so the results are great considering that there isn't a mass of aftermarket support that Honda's vtec has.....
__________________ ***. NX-R Coupe - SR20DE Power....
Hey guys, I don't even have my VE yet (but it aint far off ). 98% of the info you will need to do the conversion is here - it is well worth the read (of the entire VE section....seriously). It has been all figured out for us thanks to those who have put in the hard yards.
Don't flame I did some research, I'm just trying to find some info on the stuff I could really find an answer for.
How much do VE motors run for and where do you guys get them from (online sources not shops)?
Also one thing that I find iteresting you guys use RPM switches to activate VVL. This sounds like a ghetto ass vtec controller. I mean I know quiet alot about civics and when you try to activate vtec that way you won't get as good gains unless you add some fuel to it therefore either using a vtec capable ecu, or vafc (or someother piggy back vtec controller, but from what I heard you can't use vafc on cars that come with MAFs don't know why). So do you guys add that extra fuel during change over somehow, or you just let it be?
I think that would be it. Thanks alot and please don't flame the VE newbie.
Oh yeah with JWT ECU how do you go about tuning the car later on? Is it tunable or you need to run some sort of the piggy back.
We have a hotwire MAF system that changes fuel and timing based on how much air is entering the motor. When the cams switch, they are sucking more air in, so the MAF sees this, and the ECU does what it needs to. VE cars also have 2 fuel pressure regulators, and I think the second one increases pressure when needed, but I'm not totally sure about that. Using the MSD switches isn't a ghetto way of doing it. The VE ECU, and JWT daughterboard do the same thing, but without the ability to change when the cams switch, or switch them seperate. You can use a VAFC on a VE, but you are stuck switching both cams at the same time, unless you bought 2 of them.
__________________
1996 200SX SE-R VE powered
1991 Sentra SE-R
2004 Subaru Forester turbo
2006 Mitsubishi Evolution IX
We have a hotwire MAF system that changes fuel and timing based on how much air is entering the motor. When the cams switch, they are sucking more air in, so the MAF sees this, and the ECU does what it needs to. VE cars also have 2 fuel pressure regulators, and I think the second one increases pressure when needed, but I'm not totally sure about that. Using the MSD switches isn't a ghetto way of doing it. The VE ECU, and JWT daughterboard do the same thing, but without the ability to change when the cams switch, or switch them seperate. You can use a VAFC on a VE, but you are stuck switching both cams at the same time, unless you bought 2 of them.
EXACIaMUNDO Fonz!
Nissan ECU's configure the amount of fuel needed baised on the MAF readings, not the ECU Program like Honda's. You sort of answered your own question there Boss.
Hank
***. NX-R Coupe - SR20DE Power....
(but it aint far off 
). 98% of the info you will need to do the conversion is here - it is well worth the read (of the entire VE section....seriously). It has been all figured out for us thanks to those who have put in the hard yards.
