Screaminz28

Jason, I have read most of your posts and had a few questions. I understand you use an egt gauge for timing. Would you say that you have an average range for timing on pump gas depending on engine? Also, do you run individual egt gauges for each exhaust port or just one? I don't see how you could modify individual cylinders with the hondata anyways, so I figure one is fine. Do you do your timing tuning only on the dyno or on the street? What temp do you aim for usually, and where do you have the probe mounted? I have usually used the slightly hazardous and unfortunately time consuming method of increasing timing 2 - 3 degrees per run on the dyno until it quits making power, loses power, or begins to ping. Street tuning would be a lot less expensive. Also, I haven't seen any of your dyno sheets. Where do you keep the a/f before full boost comes on? Do you simply make it run 11:1 across the board, say from 3K on, or do you have it start around 13:1 and go down as boost pressure increases. I haven't checked hondatas site in a while, but I would love to look at some of your maps. I know they are only good for one car, but it would be a great learning tool. One last thing, have you used Hondata's new autotune feature? Just looking for some first hand info, on how usuable it really is. Thanks and sorry for all the questions!

ITR981002

I usually shoot for 12.0 - 12.5 A/F depending on what your threshold of risk is. I've seen cars putting down 260whp @ 12.0 and 280+ at 12.5 so there is something to be gained by being bold. Don't worry about the A/F graph when you first floor it, its always going to be lean as hell, when the turbo spools and your motor gets some load on it things will flatten out. 12.0 at redline is safe, 12.5 is starting to get risky IMO but you'll get more power. I've personally tuned my own cars leaner than that, but I don't run pump gas.

rOby

search for him here
http://www.houston-imports.com/forums