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HarleyTechTalk

Dyno & Tuning Zone => AFR & Tuning Zone => Topic started by: itsafatboy on February 20, 2019, 12:53:01 PM

Title: TMAX map for my 116" have a look
Post by: itsafatboy on February 20, 2019, 12:53:01 PM
Hi my setup is a 116" 11.3 comp fatboy ,  been using this map for about a year would like some opinions, I have made changes to AFR and timing quite a few , 

116"
11.3 comp
zippers billet heads 2.0 int , 1.63ex
boarzilla from a dyna , quite baffle
TW9BG cams running at +2
53mm HPI intake

bike runs fine just would like some opinions on areas I have done wrong or would be better , I have no pinging issues , but it is pretty fat AFR,  the timing was taken from base but modified based on some other high comp, maps , mostley in the low and mid rpm areas , added timing ,
Title: Re: TMAX map for my 116" have a look
Post by: Barrett on February 20, 2019, 10:12:52 PM
It seems like a build like that would like a larger throttle body.

That's just going by what I see.. I'm not a pro and I didn't sleep at a Holiday Inn last night. ;)
Title: Re: TMAX map for my 116" have a look
Post by: itsafatboy on February 21, 2019, 12:08:06 PM
I thought that also, but when I sent throttle body to HPI for a blade bearing mod, I was going to go 55mm they said that they would stay with the 53mm ,  something about velocity ,  I did get 132hp 140tq when I had the TW8G cams awhile ago
Title: Re: TMAX map for my 116" have a look
Post by: itsafatboy on March 14, 2019, 11:50:45 AM
changed it a bit more , for little less rich ,
Title: Re: TMAX map for my 116" have a look
Post by: rigidthumper on March 15, 2019, 08:24:43 AM
Can you record data while riding? That would tell you what AFR you are asking for, at which RPM. You may find you are only at 10% throttle at 60 MPH, flat & level as you wave at the guy shooting radar :). No need to have a rich AFR there. I like to cruise ~13.8:1, power between 12.8-13.2:1, and decel just rich enough to not pop.
Title: Re: TMAX map for my 116" have a look
Post by: q1svt on May 16, 2019, 03:58:38 PM
Quote from: itsafatboy on February 21, 2019, 12:08:06 PM
I thought that also, but when I sent throttle body to HPI for a blade bearing mod, I was going to go 55mm they said that they would stay with the 53mm ,  something about velocity ,  I did get 132hp 140tq when I had the TW8G cams awhile ago

I'm late to your post... but I run a HPI 55 on a built 95'er 06sg, the key was the heavy breather from an 08 Dyna (smaller cross section than the bagger versions), the dyna just happen to match up very well with to the HPI openings) it more then doubles the runner length...  the HPI 53 would see an improvement (if you like the look of a HB, and no need to change TMax timing tables and fuel curves as a HPI 55 would require).
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