How to tune your J series EG, EK, EP, DC, EF, etc

[EP3FAMILY]

Since the AEM plug and play is still a few weeks-months from the release date, I decided to try a Apex i VAFC.
I know they are out dated and wont work as good as a real management system but some thing is better than nothing at all right? I gained power on the entire band by just adjusting the air fuel ratio and changing the VTEC transition. My J motor ran really lean from 1100 Rpm to about 3700, then ran rich from 3800 to 6300. The bonus part is bought the VAFC for $25 so say what you will but I saw and felt the imporvment all motor and on nitrous.
Big thanks to Erick and willy at Erick's racing engines for the long hours of tuning sqeezing every last bit of power, Brian @ Hasport for making such great mounts, KRIZN Industries, John @ M&H tires, Mike @ High end auto sports, Frank @ F&S Clutches (everything breaks but the Clutch Frank) Fonzee for all the help and putting aside his V6 to finish mine.

This is the all motor Horse power differance.

Before VAFC With VAFC
125 3000RPM 125
160 4000RPM 177
205 4500RPM 215
230 5000RPM 252
275 5500RPM 280
283 6300RPM 290

This is the all motor Torque differance.
Before VAFC With VAFC
200 3000RPM 211
203 4000RPM 237
220 4500RPM 243
240 5000RPM 263
253 5500RPM 270
230 6300RPM 241

VAFC
http://i121.photobucket.com/albums/o217/1MARCO1/v6dynoVAFC.jpg
Old dyno graph.
http://i121.photobucket.com/albums/o217/1MARCO1/dynov6004.jpg
New dyno graph.
http://i121.photobucket.com/albums/o217/1MARCO1/v6dyno2001-1.jpg

[jacobuchanan140]

Nice man, it's always encouraging to see results like these

[projectcivicjp]

very nice numbers man!

[darkcityv6]

your numbers are sounding real nice !!! espeacily for the price of an VAFC

[RPM SYSTEMS]

the numbers look great and all , what combo were you using to get those number?

don
rpm systems

[EP3FAMILY]

the numbers look great and all , what combo were you using to get those number?

don
rpm systems

I'm running a J35A3 Acura MDX motor, I matched ported the cylinder heads with the manifold runners milled both cylinder heads .030, I put a 72mm throttle body.Tom @ portflow port match the intake opening to 72mm, cleaned the top of the pistons with a dye grinder soft pad for a smooth finish.
Changed a few things inside of the intake manifold, Other than that every thing is stock. I'm running a modified Megan header with a 2 3/4 inch exhaust.
On the nitrous the motor made 362hp and 373lb ft of torque.

Im running the car this weekend @ California speedway 1/4 mile I will update with those times.

[darkcityv6]

post some pics or videos!!!!!!!!!

[projectcivicjp]

Holy Mole-E! Those are very impressive on nitrous!

[EP3FAMILY]

Here is a video from Irwindale, I dont know who filmed it but that's me vs. an Evo.
http://www.youtube.com/watch?v=3GqOh3AssJk

Remember this track is 1/8 mile best time there was 7.62 @ 91 mph.
I did a 1.626 60 foot.

According to this web site that pass should be a 11.90 1/4 mile.
http://www.eldemoniorojo.com/calculator.htm
But I wont really know until I run 1/4 mile this weekend.

[Atlas.46]

Here is a video from Irwindale, I dont know who filmed it but that's me vs. an Evo.
http://www.youtube.com/watch?v=3GqOh3AssJk

Remember this track is 1/8 mile best time there was 7.62 @ 91 mph.
I did a 1.626 60 foot.

According to this web site that pass should be a 11.90 1/4 mile.
http://www.eldemoniorojo.com/calculator.htm
But I wont really know until I run 1/4 mile this weekend.

Damn that thing moves.

[emilio]

was the 7.6 n/a or spray

[Chibi]

Since the AEM plug and play is still a few weeks-months from the release date, I decided to try a Apex i VAFC.
I know they are out dated and wont work as good as a real management system but some thing is better than nothing at all right? I gained power on the entire band by just adjusting the air fuel ratio and changing the VTEC transition. My J motor ran really lean from 1100 Rpm to about 3700, then ran rich from 3800 to 6300. The bonus part is bought the VAFC for $25 so say what you will but I saw and felt the imporvment all motor and on nitrous.
Big thanks to Erick and willy at Erick's racing engines for the long hours of tuning sqeezing every last bit of power, Brian @ Hasport for making such great mounts, KRIZN Industries, John @ M&H tires, Mike @ High end auto sports, Frank @ F&S Clutches (everything breaks but the Clutch Frank) Fonzee for all the help and putting aside his V6 to finish mine.

This is the all motor Horse power differance.

Before VAFC With VAFC
125 3000RPM 125
160 4000RPM 177
205 4500RPM 215
230 5000RPM 252
275 5500RPM 280
283 6300RPM 290

This is the all motor Torque differance.
Before VAFC With VAFC
200 3000RPM 211
203 4000RPM 237
220 4500RPM 243
240 5000RPM 263
253 5500RPM 270
230 6300RPM 241

VAFC
http://i121.photobucket.com/albums/o217/1MARCO1/v6dynoVAFC.jpg
Old dyno graph.
http://i121.photobucket.com/albums/o217/1MARCO1/dynov6004.jpg
New dyno graph.
http://i121.photobucket.com/albums/o217/1MARCO1/v6dyno2001-1.jpg


do you know the number on a afc-neo? cause mine is lean at low rpm and then get rich at higher rpm too

[darkcityv6]

u took off like u were slingshoted off the line!!!!!!!

[EP3FAMILY]

New 1/8th mile update, 7.4 @ 97 mph
ran 7.4 three times last night, Can't wait to run the 1/4 mile.

According to this web site that should be an 11.54 1/4 mile.
http://www.eldemoniorojo.com/calculator.htm

[hondaboy4life]

congrats!

[EP3FAMILY]

Latest 1/8th mile update, after adding metal bushings to the front control arms, new rear control arms, and having the car corner weighted and aligned it went 7.04 @ 97 mph last night.
According to this web sight that is just in the 10 second 1/4 mile barrier.
http://www.eldemoniorojo.com/calculator.htm
I am very excited and very happy with the latest pass, there has been alot of research and development in the past 48 days just trying differant things and getting the car to just go a few tenths faster every week. It all feels like the hard work is paying off. I CANT wait to run the next quarter mile event. Special thanks to West end alighnment, Ericks racing engines (erick, willy), pro car inovantions(Brian), Hasport(Brian), High end autosports(Mike), willy works(willy), fonzee, snicker, KRIZN Industries, and M&H tires(John).

[Tillotson 09]

did you by chance ever post your vafc settings? seems my j swap is doing the same as yours did at the begining.

[jesus]

r u gonna post up ur settings for ur vafc

[mlotz29]

Any updates? This car is a beast.

[Fullly Built Stock Motor]

Any 1/4 mile times yet.....

[EP3FAMILY]

No 1/4 mile times yet, motor mounts broke at the last track event so I did'nt get a pass.