yes i searched..looked through 12 pages of threads but never really found what i was looking for.

So i can get a mevi cheap(cant say how cheap..but lets just say youd be an idiot not to take something you can get for free).

As of now i cant afford to buy a jwt ecu...but i will in time..or maybe a EU.

So my question is. for those of you who have a mevi with NO extended rev limiter:

1. Would you recommend it?(mevi with no ecu)
2. How much of a mid range tq loss did you notice?(i know on paper its around 11wtq)
3. what mods did you have done prior to the mevi?
4. do you have any 1/4 times before and after the mevi with no ecu?

Also i no some of these questions have been answered, but like 2 people, and im looking for more feedback/answers which is the reason why i posted this in the 4th gen forum rather then the all motor forum. Also the 1/4 mile question i ask is because i dont care abou car test numbers.. i want real life times.

Thanks in advance!

 

I have a MEVI hooked up with a TS ECU with no extended rev-limiter. my performance mods include y-pipe, high flow cat, cat-back exhaust, underdrive pulley, intake, MEVI, TS ECU.

would i recommend it? yea it's definetly fun to hear the thing open up at 5000 rpm. I think it would definetly be more fun to have the 7200 rpm rev limiter and a 5-speed. the car definetly screams to redline but without the 7200 rpm rev limiter the power band is too short. the loss of midrange power definetly bogs down the automatic pretty badly in daily driving. and without the JWT quarter mile times only improved about .2 seconds. did i answer all your questions?

 

Had a MEVI, no ECU, and only a y-pipe and stage 2 maximumtuning VB at the time. Yes, it ate into midrange, and I have an AT. Under full throttle, it would actually sometime make it to 6900 or 7000 rpm, who the heck knows why, maybe the AT was too slow to shift. Never timed myself before or after, and it's a daily driver, mostly highway, so I got a lot of benefit from it. Didn't answer all the questions but hopefully that helps!
And if it's free, I'd definitely go for it.

 

I dont see how you would make power above 6500 with the stock rev limiter.
If you were going above that, your tach is probably off.

 

to answer your question what do you have to lose by buying it? either way its a good mod to have so why not go for it? thats why its called a mod your adding more than stock but theres always a trade off and the trade off for this mod is not bad at all so go for it !

 

Power loss in the midrange.
I ran the MEVI without my upraded ecu before and didnt like it.
I personally wouldnt do it without the ECU upgrade.
The 00VI would be a different story though.

 

yea, i'm runnin it with the TS ecu and i heard the TS ecu is suppost to have a slightly more aggressive fuel map than the JWT. so supposedly the TS is better than the JWT minus the extended rev...

idk about this... the ecu is suppost to restore a lot of that lost low/mid-range power but i still feel a huge slackin in the mid-range. forgetting the extended rev for a second, an ecu (whether JWT or TS or an EU) is suppost to restore most of that lost power but i still notice a decent lag in mid-range...

maybe TS sucks and JWT is the way to go

 

Thanks for answering the questions guys..if i had the time and money to do the 00vi i would..but spending 400 on the whole thing. plus the down time, because i can pretty much garuntee i would run into tons of little but time consuming problems, means that i wont have my daily driver and only car.

Mevi on the otherhand is pretty much bolt on. Less work and not as many little driveability problems that could arise. Also ALOT cheaper(mevi is basically free). So just need a RPM switch/VAFC2, vacuum canister and some locktite lol..already got the the collector gasket.

 

why do you need a VAFC2?

 

My best time prior to MEVI with I/Y was 14.41 @ 96.7, after adding MEVI I went 14.43 @ 96.x, don't rememeber what the weather conditions were, that was like 5 years ago. I'm sure I posted about it though if you want to look for it.

With I/Y I dynod 182whp 189tq. After MEVI I dynod 184whp and 172tq but this was on a different dyno.

If you are only interested in 1/4 mile gains then you shouldn't do MEVI alone. Honestly most drivers will probably be slower with MEVI than without - it makes the car more peaky and thus more difficult to get good times out of - your shifts have to be that much more precise inorder to extract every last ounce of performance out of the car now that it has about 15wtq less.

Cartest is great for modeling these sorts of differences by the way. You should check it out. It takes the driver variable out of the equation, which we all know is the biggest factor, every time.

 

he knows that already so whats your point?? thats why i clearly stated theres a trade off for certain mods far as midrange loss never felt it like every one says ,if you feel a tremendous loss of power then something is wrong with your car power loss is not that bad my car still pulled the same as if it still had the usim nothing changed until it got past 5200 rpms it pulled even harder thats where the high end power kicks in thats with the stock ecu

 

autos feel the mid-range power loss a lot more than a 5-speed

 

I was just answering your question, "what do you have to lose by buying it?"
Ive owned both ECU's, the G Force without a rasied limiter and the JWT with the raised limiter. Ive run the MEVI with and without both. Without the upgraded ECU I definately noticed a bit of power loss in the midrange, and trust me nothing is wrong with my car.

 

Im getting one for cheap(100), seeing as i wont be able to afford a jwt ecu for abit, i read that it can control the vi switchover so i wouldnt need an rpm switch. Also it would allow me to tune it.

Thanks again for all the replies. I am definately getting it, just whether or not to install it. I think i still probably will, i wind my car out quite a bit, and it really sucks in 1st gear past 6K it takes forever to get to redline..2nd gear i shift at 6k, so its not bad.

Winding out any gear in the top end though really takes its time and you can really feel it running out of breath after 5500 range.

Another quick question, i will be on the hunt for a jwt ecu. I have a 98 fed spec, so i believe i need a 96 fed spec ecu. What rev limiter would you guys recommend, 7000, 7200 or 7600? My engine has 180K miles on it but runs pretty damn good, compression numbers are within spec along with leakdown numbers. Im leaning towards the 7200..7600 seems a little to high on stock internals with my mileage.

 

Either run the MEVI w/ raised limiter, or don't run it at all.

Just MEVI'd you'll hardly feel any difference. You'll lose half a car length due to the loss of torque when racing. However, if you race on a long enough strip you catch back up at the higher rpm's and pass up a USIM maxima at the end of 4th gear. But that's a long wait.

 

Wait .. What..

JWT ECU will not activate MEVI.. unless you have a v-safc or EU you will need a rpm switch of some sort.

JWT ECU does not allow you to tune it to my knowledge.. you can tell them your mods and they can try and tweak abit for your setup but I don't think you can easily dyno and reflash ECU.

 

do it do it do it . blahhh to all that hp loss stuff you wont even notice it. i had mines in in auto and it was great on the highways and i still had all my power that i had down low b4 the mevi . only mods i had on it was y-pipe,intake,and catback.