Hondata

I have a limited knowledge of tuning, but I learn fast. I have seen that with some street tuners they data log a WOT 3rd gear pull, and adjust from there. My concern with that being boosted, is going into boost without a proper tune could cause excessive knock and possible engine failure. How do I go about adjusting the fuel tables in the upper rpm band to lessen knock? Also is there a better angle to begin tuning from? I was able to clean up the idle and get the car mobile to begin tuning, using the greddy turbo kit base map. Right now the car idles at around 14.7 a/f and stays within 13.6 up to 3,500 rpm no boost with very light throttle. Beyond 10-20% throttle it becomes rich going lower than 10.0 a/r. I have not had a chance to work on the upper rpm range in fear of engine failure. I dont beat the car nor drive like an idiot. It is not my daily, any help is appreciated. Sorry if I posted in the wrong section.

1997 honda civic EX
03 k20a2 full swap
ported shroud gt3076r w/ tial .63 v-band hotside
synapse sidewinder manifold
tial MVR 44mm
ID 1,000cc
Hondata boost controller
Hondata intake gasket
IACV deleted
Hybrid Racing 70mm throttle body
stock rsx type s manifold
AEM wideband/ boost

Sounds like you have spent a good chunk of change on a nice setup. This is not the answer you were looking for, but I would highly recommend getting this on the dyno and spending a couple hundred with a reputable tuner. I have street tuned my own cars on s300 and Flashpro, both NA and boosted, and still recommend going to a professional tuner. You can follow guidelines on tuning ignition tables + boost all day long, but the dyno is the only way to tune, the proper way.

If you must insist on advice to street tune (hopefully just to get you to a tuner), I will bring up a few points.

If you are running boost by gear, limit the boost to the wastegate spring pressure. Read the helpfile 10 times until you know it like the back of your hand, then tune your lowest boost setting safely. If you are not running a 4.35psi spring for the Tial, I would purchase one. Very nice for BBG and tuning.

After your maps are tuned for 4.35, turn up the boost and repeat, over and over and over.

Again... I've done many many street tunes, and I would still recommend getting that thing to a reputable tuner on the dyno.

My 2c.

Mike


Tial springs for the MVR series: http://www.tialsport.com/documents/MVRspc.png