First of all I'd like to thank Ed and the guys at Balanced Performance (number's on the chart ) for all of the good work. Ed let my friend (ITR owner) and I pick his brain while he tuned my V-AFC, etc.

Here's a few pics of my car strapped down:







Well first of all my set-up is as follows:

1998 USDM B18C5 - 100% STOCK. 60K miles
AEM CAI for 99-00 Civic Si
DC JDM 4-1 Header (2.5'' collector)
CarSound 2.5'' Cat
Tanabe Super Medallion Racing Spec exhaust for 1992-1995 Civic hatch
Skunk 2 cam gears
B&M FPR
Kenji-Spec P28
Freshly Installed V-AFC
Fresh Ooil Change - Mobil 1 5W30 Synthetic

My old baseline before the header/cat combo was 175whp and 122 torque, but had HORRIBLE low and mid - HORRIBLE!

So here's the new baseline vs. tuned chart:



So what do you guys think? Notice how shitty the A/F readings were pre-V-AFC and FPR tuning? 15:1? Yikes!

Ed basically fattened the entire curve up with the FPR and then trimmed back the rich parts with the V-AFC. The results speak for themselves. Look at those HUGE midrange gains! I mean there's like +20 whp and +20 ft/lbs. of torque in some areas!

Driving the car sure is different too. Where there used to be a dip from 5000-6500rpm now there's a strong, fat-*** torque and hp gain. I can shift at a lowly 8000rpm and not have to worry about that big-*** dead spot I had before.



Peak numbers?

Well peak isn't the **** anyways, but IMO 176 isn't bad for what I have and the torque is crazy. I could not believe I'm .2 off of 130 torque to the wheels. I've seen some cammed motors not put too much over my torque readings even after tuning.



Lastly here's a video of one of the pulls - it was taken with my Fuji Finepix 3800 Diggy Camra, so it;s in .avi format and not the best diggy camcorder quality.

RIGHT CLICK SAVE AS PLEASE!!! ...or else I'll have to pull the link for bogging the Wee-Todds y0!

http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D

Oh and I'm coming straight back to the dyno next week for the results after the electric waterpump install.

Comments are welcome!

 

video not working?

edit - nice car and dyno btw


[Modified by usdm_ED7, 4:25 AM 2/19/2003]

 

Thanks, I fixed the link. Should work now.

 

Nice results.

 

Sweet...!!

 

finally some dyno numbers for vafc gains!

 

very nice result.

 

.......

 

wow, huge mid-range gains. nice.

you were running super lean...

 

I know - that **** was astonishing for real.

I was the biggest V-AFC skeptic until today. Had I not had the V-AFC all Ed would have been able to do was fatten the fuel with the FPR and basically flood the **** out of the motor everywhere that it wasn't running way lean before.

Anyone see the video yet?

Oh BTW:

The cams are set at +4 intake and +2 exhaust. Moving the intake cam either direction dropped the mid and peak whp and torque for some strange reason.

My next plans after the electric waterpump and CTR race pulley (should be in my hands tomorrow) would be Skunk2 Stage 1s and a Hondata S200 and tuning. Mild cams and stock 10.6:1 CR should be good with tuning. I'm hoping for 190whp or so - HOPING is the key word there.

 

what do they connect to the car to read the AF ratio?
nice *** results...
does the improved torque put a smile to your face?

 

nice car

 

Nice car and nice results

 

behold the p0w3r of tuning!

 

 

Wow, tuning the A/F really fattened up that mid-range. That car is too clean, looks like you could eat your lunch off of the engine.

 

Good job man. Congrats on the sucessful tuning.

I should be back in your area soon to tune the Power FC some more.

 

Nice numbers mang! That tuning really fixed that mid range.

 

awesome results!!!.... To your tuner!!!

 

BWHAHAHA can i get a WOO WOO on that one im glad that everything worked out for you

 

nice mid range gains vafc is definately worth having
clean hatch

 

 

I have been running a B16 ecu as a band-aid for a while and my base line graph looked very similar to his baseline in terms of A/F ratio.

VAFC Kicks ***......combined with an FPR it works very nicely....as would a bump in timing from 12 deg to 16 Anyone running 20 deg?

 

Didn't you add the dc header and 2.5" cat since the last dyno session? I would think that could have contributed to your numbers, and not solely tuning.

 

Yes, but no. I added the header/cat after my old baselines, but the graphs shown are both after the header. Gains are from solely tuning alone.

Those graphs overlayed are runs number 1 of yesterday and then the final run after tuning. There were 8 pulls done total.

My old graphs were at a different dyno, but i'll scan that too to see what the header/cat combo did.

Only shitty thing there is this:

Old baseline pre-header/cat was done at a different dyno under different temps. That pull was on lighter, less grippy Pirelli 195-50-15 P700Z tires while these pulls were with the oh-so-heavy and sticky Falken Azenis in 205-50-15 - more resistance on the rollers.

Most importantly though is this:

The old baseline was with an unaltered kenji P28. This new baseline is with the V-AFC on it's base settings, thus the huge, shitty lack of mid because of the V-AFC stock 6000rpm VTEC.

What else would the V-AFC besides the VTEC X-over in terms of power? I simply wired it up and did the little initializing crap but touched no settings.

I was a bit dissappointed on the lack of noticable whp gains too at first until I considered all of those things.