Hey I am shopping around for a V-tec Controller and I was wondering who made some good ones...let me know thanks

 

Apexi
Fields
Whichever new ones have come out.

 

Apexi VAFC.

 

Let me summarize how this post will end up for you:

"Fields is better! It goes on first and cleans the hair! "
"No APEXi is better! it leaves the hair silky and smooth! "
"Oh really fool?"
"Yes really!"
"STOP LOOKING AT ME SWAN!"

 

best piggy back=Apexi VAFC

fields causes too many codes

 

wow. that's completely unfounded. I've run both. The apexi caused codes while driving on the highway for extended periods, the fields hasn't flashed a code yet.

 

I have seen no field controllers cause any problems.
However EVERY SINGLE vafc i have seen caused problems, and in a lot of cases
a decent loss in power(sometimes as much as -10whp w/o even adjusting).

Another reason I like the field, it has a voltage limiter to keep the less informed
from overincreasing map voltage and causing the computer to throw a light.

 

I like the fields although one of mine fucked up. The fuel controller was all screwy and made my car run like total dick and shutoff randomly ( Fast94GSR can account this as well as willis.) But I still love it over the VAFC.

 

Get the Vafc. It's badass, it's all digital, and has a dope screen.

 

i have the fields controller and i like it....except when it cause the car to shut off and throw a map sensor code...i think the controller must go bad after a while cause i have heard of many others with this problem (even people who soldered their connections). does fileds replace their faulty components or am i just stuck w/ this?

 

Unlike stephen, every field controllers I have seen has caused problems. It throws map codes, causes the car to studder. But all VTEC controllers are the same concept, so they all probably cause problems every now and than.

 

90% of problems with a field controller stem from poor connections.
I have fixed many. Might want to look at it again.

 

Apexi

 

FOr the 100th time Apex VAFC when properly installed causes no problems. Has way more flexibility then the fields.

 

My field unit worked fine in my car for a year and then it started acting up about once a month, car would go into a limp mode, I had the field harness also. I removed it and the car has been fine. Gave it to a friend and told him it was bad. He ran it for a month and it started acting up on him every couple of weeks. Haven't tried a Apex unit yet.

Mattj

 

I know of many that have been in service for years with 0 problems.

Bottom line, get what makes you happy.

 

I have experience with both, and I can agree with Steve that the A'PEXi unit causes more problems. There are not one, but TWO cars locally that are throwing code 3 and code 21 about twice a week. All the wires were checked, and they were installed properly. The factory procedure in the Helms was used to diagnose the CEL problems and it came to no solution.

Only possible thing is the V-AFC. The VTEC on both these cars are both around 4700-4800, which is not out of the ordinary... and the fuel changes are minimal, with +4% being the most. So I'm really dumbfounded.

On the other hand, the SFC-VTEC unit has NEVER caused a problem that I have seen. Only thing that it doesn't do is adjust for different throttle positions. THis is where the V-AFC has it beat.. thats about it.

Oh, and for those who want it because of the "cool LCD", whatever floats your boat, man. I keep my VTEC controller in my glove box.

 

Sometimes even +4 can be too much.

 

My S-AFC could hold up to +15% on the S-AFC before it threw a code

 

All that really means is that you werent that close to 0 vacuum.

on my motor, at some rpms +1 would be too much and at other places
+4 would work and sometimes +8

 

I heard that. I just wish I soldered the Field in instead of taking it out (suspecting the unit, itself) and soldered the the OEM loom back together.

The MAP codes (specifically extreme manifold pressure) are caused by the ECU seeing the connection "open".

Grrrr...

 

Hmm..guess I dont really know how it works???

I usually had vacuum displaying...hit +0.03 a couple times! BOOOOST! LOL

 

VAFC all the way. It was one of the first electronic I´ve instaaled into my car. So I was a rewbee on it. I read the manual a few times and installed it without ever getting a code or misfunktion.

 

Under hard acceleration, my Integra hits +0.14 and on a cold night it has hit upwards of +0.18

I've been told that this is due to a high "dynamic" compression ratio... where the motor is working so efficiently that it almost makes boost.

I don't know.. I am not too informed on this subject.. but I can say my peak torque is about 133 ft/lbs at the wheels, and stays a constant from 4800-7000 or so.