Thundermax base Maps

[pilot479]

Currently building 09' hammer perf 1250 , smash heads, 10.5cr, se 575 cams...looking for the best thundermax base map?

[LouisG3]

Contact Zipper's, I think they have high performance maps available.

[capitali$t_$lave]

Post your results on here.
I've got the Thundermax and plan on doing the SuperHammer kit as soon as i sell me Jeep.

[roadtrip]

map 543 is for high output engines(ported heads,aftermarket cams and 2-1 exhaust,domed pistons)

I was using that map a while back and didn't like it...too much timing advance,made the scoot run hot...then there is 561 not so bad,but still too much advance for my taste..

I opted for map 415 with a few changes I made on the timing curve(little more gradual) I
like that one much better,works great.

[pilot479]

Help! Working on tuning my new build.... Using map 817 and seeing the same results, bike runs good but getting hot. Seeing cylinder temps heading north of 360? Backed off wide open timing.... 2 heat ranges colder on plugs. Anyone have a dyno tuned map that I could take a look at?

[1250IRON]

360 on idle or after a ride? Pretty sure map 817 is the one you want with your build.

[pilot479]

Yes 360+ on short ride...

[NRHS Sales]

Yes map 817 is the one you want to use. 543 is more for a basic 1250 build.

[pilot479]

What exactly should head temp be on a fresh 1250 build?

[pilot479]

Are you making any significant adjustments to 817 map? Timing seems a bit aggressive

[NRHS Sales]

That is really a question you should pose to hammer asd they are the ones doing your parts. Everybody else here has no real investment in it should there be a problem. Have you asked them?

[1250IRON]

I'm not familiar with the parts you are using. i think the pistons are different from mine so i wouldn't know a safe operating temp. on those cylinders. I haven't done anything to base map 817 and have well over 1000 miles running it without an issue, but then again i'm not the type to think i need to squeeze every bit of power i can out of the engine. it runs really strong so i let it do it's thing.

[1250IRON]

Any luck with the thundermax maps?

[pilot479]

Still working on it....i have enlisted the help of axtell sales. They selected the 836 map for the 88" and made some changes to it. Cylinder head temp seem to be about 30-40 degrees cooler and the bike seems to run fairly well and improving with autotune, but not there yet.

[pilot479]

By the way.... Called zippers and they say that they dont even consider sportster to be hot until 425 degress....really?

[1250IRON]

well a safe oil temp is around 225 or higher so i would think that the heads would be much hotter. i'm still surprised that map 817 did not work for you.

[new2HDfrank]

Sorry, not trying to hijack, just spread the word. I have a Thundermax ECU listed for sale in the Classified Section, if anyone is interested.

Thanks, Frank :)

[IronDan-O]

There's several threads floating around about engine temps, a few as recent as yesterday.
385 in perfectly fine.
My Stock 883 ran at that and still does after my 1200 conversion.
Dakota Digital upgraded the temperature reporting software due to the warning coming on that didn't need to warn anyone.
The set temp can now go to 419 so it won't nag you anymore at 392 (if you have the old software)

BTW, my gauge is sitting at the post office waiting for me to pick it up. I sent it back a week or so ago to get it re-programmed with the newest firmware.