M8 Dyno Numbers
https://forum.concours.org/index.php...%25%20in%20SAE.[/QUOTE]
Well ****. So that would lead me to ask why my numbers are low then. I feel like with the TTS 175 i should be pushing these numbers if not higher using SAE correction.
Sounds like it blows the doors off of the S&S 540 torque cam. Anyone have or seen a good dyno sheet for it?
https://thedynoguy.com/harley-davids...ama-540-2-cam#
Last edited by Bayou FLHR-M8-128"; Oct 20, 2023 at 07:25 AM.
SE Ventilator Extreme AC
SE 64TB/ported intake
Star F35A cam Kibblewhite springs
HPI 6.2 injectors
S&S Superstreet 2-1 decatted plus 3 2.25 ID pipe in place of Db reducer. The 3 pipe comes out flush with the end cap. +3hp +4tq
135HP @ 6,140
134TQ @ 3,750
Jakelt24. The CR 114 that made SAE 138hp 134tq was legit but they listed the same upgrades as mine only with a crazy custom CMT pipe that had the huge 2 primaries for a big displacement motor or in his case bike used for drag racing.
Last edited by VernDiesel; Oct 22, 2023 at 09:57 AM.
Sounds like it blows the doors off of the S&S 540 torque cam. Anyone have or seen a good dyno sheet for it?
https://thedynoguy.com/harley-davids...ama-540-2-cam#
I personally want my SE128 to be a torque monster that pulls from VERY start as did my 83 Shovel 80" FLH as well as my 91 EVO FLH.
Don't get me wrong the SE128 does run good and much stronger (no doubt at all) and I am being petty, but when I can just twist the throttle (completely off of the clutch, rolling) on the old 80" bikes and ride out all of 1st gear on back wheel each and every time I ride, I want "THAT"!🤦♂️
Yes, mine will pull the wheel with a quick blip of the throttle but very rarely carries it far.
Yes, it has more to do with the lower 1st gear ratio but still 128" should surley compensate for that loss 🤷♂️😄
(has me seriously considering the Baker 7 speed, which gives lower gear ratio's in the 1st 4 or 5 gears and then just a bit higher in high gear for highway. BEST OF BOTH WORLDS at of course a BIG expense 💰

Last edited by Bayou FLHR-M8-128"; Oct 23, 2023 at 07:50 AM.
The Best of Harley-Davidson for Lifelong Riders
SE Ventilator Extreme AC
SE 64TB/ported intake
Star F35A cam Kibblewhite springs
HPI 6.2 injectors
S&S Superstreet 2-1 decatted plus 3 2.25 ID pipe in place of Db reducer. The 3 pipe comes out flush with the end cap. +3hp +4tq
135HP @ 6,140
134TQ @ 3,750
I also changed the belt sprocket and belt wheel pulley to lower final drive ratio from 2.79 to 3.15. Cheap & easy and quiet & smooth compared to a chain conversion. Have not had it to the track yet but it can come out of the hole really Hard. Takes more practice and nerve than Ive given to it to not spin wheelie or slip the clutch.
Ran a 128 bagger 145hp 155tq on the street 3 runs. Took all three. We only run about 1,000 feet past a marker but I hole shot him good every time and he could not run me down. Lil butt hurt from his buddys busting his butt about getting smacked by a lil 114. That was a fun night.
I wanted to do a big bore kit but personally couldnt do it without doing heads & crank read $$$. I bought the stage 3 107 to 114 kit when the bike was new prior to the days of the big bore kits so I decided to make lemonade. Glade I did its great fun. Occasionally you can still find these kits for peanuts because everybody wants big displacement.










