Hello RDJ,
Welcome to this site. Regarding your TMAX, it can be tuned, but you have to remember some basics. First, Zippers has created a lot of maps for a variety of combinations for you. What this does, is tells the Thundermax to do whatever neccessary to make your bike FOLLOW the fuel ratios, timing etc, that the map is set for. This is the automatic part. If you tell the bike to run 13.5 AFR, it will, perfectly.
But a question for you first, do the 2/1 fatcats have the 02 sensor bung, and are you running the 02 sensors, and, are you running in either open or closed loop??
A common misunderstanding is that the TMAX is fully automatic, meaning take any ol bike, and with any combination, just hook it up and it will run great. Well, this is not the case, but for some reason, some think it works this way. Simply, the pre-created maps are very close to what you bike likes, and then the TMAX automatically adjusts conditions so the map and bike work in harmony. But, you really need to have some type of a BASE map. Now, with your combination, there is not a pre created map, and Zippers recommended map as you said is # 275. Let me take a look. The 275 map is for the following: HCRESJSGEF010307.slk and kind of matches, with the exception of the cam you are running, the 37G. So, right away, the cam profile is very different than the stock that this map was designed for. So, you have to compensate for that. a little. The map choices in this 95" instance are either harley 203, redshift 557, or stock. The idea is to get as close as possible to the configuration you have #1, and then make minor adjustments to AFR and timing #2.
I personally think you have retarded timing far enough. I also think you need to increase your target AFR to 13.0 if not already, and also, if closed loop, richen up a bit at the top end throttle degrees from 2500rpm up. But first, let's simply see what you have, so....
Rather than guess at the answer from my question, I await your response, and will go from there.
Rhino
I am also having trouble with my thundermax unit but my bike is rideable wish i would of found this site before i bought one ......i am getting pinging @ 3000 rpms like if I'm running between 65 and 70mph and i roll on the throttle i hear it ping just a couple times before the t max i had the power commander3 had it tuned the tuner said he could"nt get the ping out at that rpm also...Emailed zippers they had me lower the timing in that rpm range by -1 in a smoothing effect didn't help went all the way to - 3 still pinged .Emailed then again told me to add gas in those area's till i found it didn't ping anymore i also thought this tmax was suppose to do it for me..What i have is a 2005 roadking 95" kit with SE flat top pistons, SE air filter,37g cams,2 into 1 fatcat exhaust, heads ported and polished for a 9:8-1 they told me to use map #275 hope this is the right map.. Also sorry to hear other people are having troubles also....... Glad i kept my PC3 looks like i might need it and also a better tuner..................
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Topic: TMAT (Read 46286 times)