Yes, you read the topic / title right.... I've recently completed my rebuild and install of my new "INLINEPRO" 2.5L engine into my 2002 S2K!!!



In-linePro

Now I'm at the point to where i have everything up and running smooth, but the engine is running super rich with the 575ccl injectors I'm required to have. (The O2 sensors trip all the time) The solution to this is to have the engine dyno tuned, but I'm looking for some solid base-line info to try and get my car running semi-smog free at least until I can get the car Dyno'd. (Dyno run and tuning will be done sometime next week)

Anyone have experience working with this system, and experience with the 2.5L IN-LinePro motor? What air / fuel correction settings can I "safely" use, until i have my dyno work completed next week?

I have an "Apexi" V-AFCII installed to handle the fuel management, with the following settings:

Sensor No (Sensor Number, manual page 46)
IN OUT
6 6
Note: This is the default setting.

Car Select (Vehicle Type, manual page 47-49)
CYL: 4
THR: up-right arrow (Sets throttle voltage)
V/T: 1 (Sets VTEC range)

V/T CONT (L>H VTEC Engagement, manual page 32)
@: 6000 RPM

V/T CONT (H>L VTEC Engagement, manual page 32)
@: 5800 - 5900 RPM

Ne-P:Hvt / Ne-P:Lvt (NE-POINT, manual page 41)
Air correction engine RPM for high and low cams.

HIGH LOW
3500 1000
4000 1500
4500 2000
5000 2500
5500 3000
6000 3500
6500 4000
7000 4500
7500 5000
8000 5500
8500 6000
9000 6500

Wide / Narrow Throttle (Air correction factor, manual page 30-31

Wide % Correction
3500 0
4000 0
4500 0
5000 0
5500 0
6000 0
6500 0
7000 0
7500 0
8000 0
8500 0
9000 0

LOW CAM % Correction
1000 -3
2000 -2
2500 -1
3000 0
3500 0
4000 0
4500 0
5000 0
5500 0
6000 0
6500 0

 

Not to nitpick, but your post is the third or fourth from Inline Pro 2.5 owners. Of all the cars that I've seen, many seem to still be using a VAFC instead of proper engine management. Is there a reason why you didn't spend a little extra money on something that could control timing, rev limiter, fuel, etc. in a more effective manner (i.e. AEM EMS?)?

Sorry to hijack your thread, but I really wanted to ask this as it just seems silly to mess with a VAFC on an expensive, completely modded engine like yours.

In answer to your question, you really shouldn't alter your settings until getting tuned with a wideband O2 sensor. However, you could safely pull out 10-15% fuel on your narrow throttle settings given that your injectors are about 60% bigger for a 25% bigger engine.

SC

 

Thank you for your reply "ultimate lurker".

The VAFC was what was sugested by the staff at inlinepro... As this was my first rebuild and install, (Yes I did rebuild and install myself) I was apt to take what I was told by inlinepro as being normal for this engine. if this is what you are your are seeing in other 2.5L's, then i can assume that this is the norm.

BTW: Is the AEM EMS really that good, and should i consider scrapping my VAFC for it?

Also... Am i correct in assuming that a negative air-correction factor will lower the fuel supplied? (i.e. 1000rpm -3%)

 

[QUOTE=ultimate lurker,Jun 23 2005, 07:42 AM] Not to nitpick, but your post is the third or fourth from Inline Pro 2.5 owners.

 

aem ems > apexi vafc...........

the only reason inline uses the vafc is because thats all they've used for the longest time, and it's actually more cost effective in the SHORT run....

i for one would swap out to an ems...... but it's not always neccessary but it is a lot better and you will pull out more power from the car with an ems...

PM. whites2000@16... he's the first one to have this stroker kit....his car runs fine by the way.. and yes he's using vafc II......

 

good god, I'm really tired of the sh!t talking of the inlinepro 2.5L all because we use an AFC. That being said im not ignorant to the fact the AEM EMS is better but so many features of the EMS is completely unnessecay.Another huge downfall to the EMS is there are very little "good " tuners in the country. For your set up (inlinepro 2.5L) all you need is to control your enlarged fuel injectors, you DO NOT need to play with timing. That being said all you NEED is an AFC. I know this for a fact, my 2.5L did 250WHP and 190ft/lb THIS AFTERNOON with only a VAFC, alli have changed in my set up is a new exhaust which is now InlinePro's 3in. (dylan saw me driving home the day i got it )

-UL the math you used to say you could pull out 10-15% of fuel isn't quite right even though it is the most basic and sensable logic. There are other factors like the compression and such that make it untrue.

stoner- are you in Alabama??


-Matt

 

I didn't see much sh*t talking about a AFC. Everyone should know it's a piggyback system, and has limitations.

The only thing that bothers me is inline pro's failure rate on low milage engines.

 

i was wondering what exhaust that was... it looks good and sounds mean as hell...

 

Slow- The only failure is the customers that are out of state or out of countrys inability to follow directions and asemble the motor corectly. InlinePro can only do so much for their customers, when they cant assemble a 2.5L set up completely for them from the ground up. I was speaking to jeremy (engine builder) today and he was speaking to me about the problems others have had with the set up the end result of all the problems come back to two factors the customer not following directions and inability to finish the motor assembly properly. Yes, its unfortinite but you have to realize the exacting specifications that must be complied with when assembling the motor the stock motor is tricky and demanding enough so just think all that is involved with assembling a stroked motor to this degree.

blue03- thanks for the compliments . the exhuast is umm well loud but i like it alot and the power gain is well worth it.

Here is a dyno graph of the motor as of today .


-Matt

 

Can you still rev the car at 9k with no problem?