badass1000
Registered
This is not to start a technical argument or "all dynos are different blah blah blah", so please don't bother posting it in this thread. This is just me sharing my findings with the ECU Editor on the dyno.
I found out last week a Gen II under full throttle will tolerate 36 degrees of throttle advance with no issues running premium fuel. The colors are where I adjusted the timing. I made a few minor adjustments in the cruising ranges resulting in a 45 MPG freeway average in 6th with hard luggage attached. There was no ping on the dyno, and it was smooth under full throttle. Here is the fuel and ignition maps I ran on the dyno last Friday with 92 octane, no cat, K&N filter and a 190/55 rear tire. The dyno printout was essentially with no smoothing, resulting in a twitchy output. From the look I have some work to do on my fuel tables.
thinking of leaving the engine in my new 09 busa stock for awhile and trying to get the most out of it I can on stock engine. So I want to try modifying the ignition tables next time I am out to see what it does.
I run 87 octane pump now. thinking of putting some premium pump in (91 octane non ethanol) and trying your timing map. I am looking at my timing map right now. sorry I am not the best with computers or I would post the timing map like you did, but in the newest version of ecu editor I pulled it up and it says you have to use ignition unify and the map in their has the timing pulled back a bit at the 9600, and 10000rpm 90 and 100% throttle cells to 31 degrees timing. it is 32 degrees below this rpm and 34 degrees above. your map is at 36 degrees at these point so I am adding 5 degrees of timing in these cells if I use your map. just wondering if your original map was higher then mine and wondering why my map has the timing pulled at those rpm's. I look forward to trying it out.
last weekend I started with a map from some one else on my 09 busa with gsxr 1000 short stacks, bmc race, and brocks alien head. first pass was a 9.62 at 145.72. 114.51 1/8th. this is at firebirds 2800' elevation. it was 12.4-12.5 a/f on first pass. I got it all tuned in to 13.1-13.2 a/f and the 1/8th mph came up to consistant high 118's. 1/4 mph was consistantly high 145's with one 146.3mph run. so it slowly brought up the 1/8th mph 4.5mph throught the day tuning it in, but the 1/4mph stayed the same. if I gain 4.5mph in the 1/8th I would think it would come up atleast that much in the 1/4.
My chain was good at the begining of the day and was kinking up bad by the end of the day. so I don't know if this affected it. putting a new chain on and see what happens. if the 1/4 mph does not come up I am going to try useing the ram air compensation to fatten it up in just 4th and 5th gear and see if it brings up the mph on the back half.
ended the day with a 9.44 at 142 with a 118.89 1/8th. the wideband commander was showing the rpm's alot lower then I was shifting on the gauge. so I ran it in 3rd untill it actually hit the rev limiter just to see where it hit on the gauge is the reason for the slower 1/4mph on that pass. I can't remember exact numbers, but the stock gauge is around 500 rpm higher then actual rpm near redline.
