Thundermax AFR settings
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Seasoned HDF Member
Joined: Sep 2007
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From: Danbury CT
Thundermax AFR settings
My bike runs great with the Tmax autotune but mileage is low, around 34. The Target AFR is 13. What is a good overall target for power and mileage? Would raising the target to about 13.8 overall work or is it better to adjust the crusing ranges only. TIA
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Seasoned HDF Member
Joined: Sep 2007
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From: Danbury CT
I had it up to 39-40 with the PCV after tweaking the cruise range. It started out at 30. I'm sure I will do the same with the Tmax but the learning curve is a bit more complicated.
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
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From: Western South Dakota
Yeah, I didn't want to go there and decided to stay with my PC-V too.
I had sort of shitty mpg myself(33-35).
Used some chevron techron here a few tankfuls back and the other day got 40 mpg.
Don't know what's up with that, but hope that it stays that way.
I can deal with 40 mpg w/a mild stage 2.
I had sort of shitty mpg myself(33-35).
Used some chevron techron here a few tankfuls back and the other day got 40 mpg.
Don't know what's up with that, but hope that it stays that way.
I can deal with 40 mpg w/a mild stage 2.
Thread Starter
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,599
From: Danbury CT
Yeah, I didn't want to go there and decided to stay with my PC-V too.
I had sort of shitty mpg myself(33-35).
Used some chevron techron here a few tankfuls back and the other day got 40 mpg.
Don't know what's up with that, but hope that it stays that way.
I can deal with 40 mpg w/a mild stage 2.
I had sort of shitty mpg myself(33-35).
Used some chevron techron here a few tankfuls back and the other day got 40 mpg.
Don't know what's up with that, but hope that it stays that way.
I can deal with 40 mpg w/a mild stage 2.
I have Woods 555's & Woods lifters. It really does run better with the Tmax after writing the autotune adjustments to the map a few times.
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
Likes: 88,717
From: Western South Dakota
I said "Screw it" and had it dyno-ed.
I had an AT on it with the PC-V and got real tired of being on phone with dyno-jet and Fuel Moto all the time. "Try this go for a ride and try that. ""Accept the trims" and ride some more and go thorugh it all again.
It got real old.
Needless to say, the AT is history and I am happy with the way the bike is running now.
I had an AT on it with the PC-V and got real tired of being on phone with dyno-jet and Fuel Moto all the time. "Try this go for a ride and try that. ""Accept the trims" and ride some more and go thorugh it all again.
It got real old.
Needless to say, the AT is history and I am happy with the way the bike is running now.
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Thread Starter
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,599
From: Danbury CT
I said "Screw it" and had it dyno-ed.
I had an AT on it with the PC-V and got real tired of being on phone with dyno-jet and Fuel Moto all the time. "Try this go for a ride and try that. ""Accept the trims" and ride some more and go thorugh it all again.
It got real old.
Needless to say, the AT is history and I am happy with the way the bike is running now.
I had an AT on it with the PC-V and got real tired of being on phone with dyno-jet and Fuel Moto all the time. "Try this go for a ride and try that. ""Accept the trims" and ride some more and go thorugh it all again.
It got real old.
Needless to say, the AT is history and I am happy with the way the bike is running now.
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Road Master
Joined: Aug 2007
Posts: 838
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From: Northern California
34 ave is all I have seen for mileage w/ my T-Max. I had the bike dyno'ed out of curiosity and it was interesting to see the AFRs for each cylinder. The T-Max showed little ability to control AFRs as they were all over the place. Also, take a look at how sooty your exhaust pipes are. I am dumping the T-Max for a bunch of reasons and looking forward to seeing how well TTS performs.
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
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From: Western South Dakota
Interesting observation(s) Jeff.
My understanding is that TTS was re-tweaking their unit?
That be the case, the verdict will be out on TTS for a while until they get the tweeks worked out of their tweeking..
I think that the PV is close to having the tweeks worked out of it,as it is a little over a year old now, even though there is a new update for the firm-ware. Many on this site are having a lot of success with it.
I'm still using what I got and it is working, even though it is antiquated, as is HD for that matter. lolol..
My understanding is that TTS was re-tweaking their unit?
That be the case, the verdict will be out on TTS for a while until they get the tweeks worked out of their tweeking..
I think that the PV is close to having the tweeks worked out of it,as it is a little over a year old now, even though there is a new update for the firm-ware. Many on this site are having a lot of success with it.
I'm still using what I got and it is working, even though it is antiquated, as is HD for that matter. lolol..