Please comment on my Dyno Sheet
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Joined: Feb 2008
Posts: 89
Likes: 4
From: Md
I am now having my dealer install a 103" big bore kit to my 2011 Fat Boy Low with the 96 it has as stock. When I bought the bike I had a Stage 1 done from the get go, 2 into 1 V & H Big Radius, race tuner, K & N filter and dynoed....then a few months later I wanted more umpffff...and was told adding bolt on 255 cams and another dyno tune would be the best bang for the buck. It wasn't, only picked up 1-2 ft lbs of torque and it was over 3000 RPMs. It did run smoother but that's not what I was looking for.
My dealer is giving me a sweet deal on the 103" big bore kit and dyno time. Do the techies out there think this'll be the difference I was looking for all along ? and as compared to just adding the cams? Just curious what everyone's thoughts are. getting it done in about 2 weeks. I am definitley as excited as I was before the disappointment of the cam addition. I hope this'll be the real deal this time around. Not looking for a crotch rocket but I am looking to get the best I can from what I have. Do you guys think this 103" Big Bore kit and dyno tune will do it? Opinions??
My dealer is giving me a sweet deal on the 103" big bore kit and dyno time. Do the techies out there think this'll be the difference I was looking for all along ? and as compared to just adding the cams? Just curious what everyone's thoughts are. getting it done in about 2 weeks. I am definitley as excited as I was before the disappointment of the cam addition. I hope this'll be the real deal this time around. Not looking for a crotch rocket but I am looking to get the best I can from what I have. Do you guys think this 103" Big Bore kit and dyno tune will do it? Opinions??
Seasoned HDF Member
Joined: Oct 2006
Posts: 5,977
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From: Nevada
If I'm reading your post correctly you've already added the 255 cams? If that's correct and you didn't get a noticeable improvement I'd say you have a tuning issue. Everything I've read is that those cams work really good in a 96.
While going to 103 is great without a proper tune it won't help that much in your case imho. You should have picked up a lot of torque down low.
While going to 103 is great without a proper tune it won't help that much in your case imho. You should have picked up a lot of torque down low.
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Joined: Feb 2008
Posts: 89
Likes: 4
From: Md
The only thing I got was a smoother ride..decel popping was elimitated, but as far as low end torque improvement..."NADA"..."ZERO", which is why I was so unhappy, per my earlier post of 2 months ago. My dealer knows I was unhappy and that I was "sold" a product I didn't receive. After the fact, many told me after already having a stage 1, good pipes and tune, that adding the 255's wouldn't do much...again after the fact...and IF I knew that I wouldn't have thrown away $1100. My dealer is actually doing this for no charge...the retail value was $1500. I have been a great customer and bring alot to the table with connections to bring them business. A side note, which has nothing to do with anything, is that I am back on a bike after losing my left leg in a MC accident 2 1/2 years ago...the infamous "old lady" failing to negotiate a tight turn, and I got hit head on, along with my wife and another rider. My only point being, anything to do with riding is a wonderful "big deal" to me. And so, while I don't mind paying dealer prices, I absolutely expect great service and straight up recommendations in an area I fall short in (engine work or anything except checking the tire pressure, oil and gassing it up 
Dean
Dean
Road Warrior
Joined: Jun 2009
Posts: 1,943
Likes: 3
From: NYC
I asked that it be leaned out a tad at cruising speed for better mileage.
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Joined: Feb 2008
Posts: 89
Likes: 4
From: Md
Speakerfritz...I am in complete agreement with you. This 103" big bore upgrade service they are doing for free because I was led to believe that the cam 255 upgrade that i had done a few months back would give me a nice increase in torque, which didn't, and as I now know "couldn't". As far as gas mileage I do know it is a trade off. I couldn't care less if it drops from 38MPG to 30 or even less MPG. My bike is for fun and if the entertainment value costs a few more dollars, then it is totally worth it, IMO. I was laid up for over a year after my accident and every mile I ride now is pure "icing on the cake", and worth its weight in gold.
Oops...I just reread that you weren't responding to me, sorry. If I did say that , then the above is what my response would have been....LOL
Dean
Oops...I just reread that you weren't responding to me, sorry. If I did say that , then the above is what my response would have been....LOL
Dean
Road Warrior
Joined: Aug 2008
Posts: 1,318
Likes: 26
Speakerfritz...I am in complete agreement with you. This 103" big bore upgrade service they are doing for free because I was led to believe that the cam 255 upgrade that i had done a few months back would give me a nice increase in torque, which didn't, and as I now know "couldn't". As far as gas mileage I do know it is a trade off. I couldn't care less if it drops from 38MPG to 30 or even less MPG. My bike is for fun and if the entertainment value costs a few more dollars, then it is totally worth it, IMO. I was laid up for over a year after my accident and every mile I ride now is pure "icing on the cake", and worth its weight in gold.
Oops...I just reread that you weren't responding to me, sorry. If I did say that , then the above is what my response would have been....LOL
Dean
Oops...I just reread that you weren't responding to me, sorry. If I did say that , then the above is what my response would have been....LOL
Dean
Really sounds like a poor tune??? I added 255 to my 96 and it was like night and day. tq jumped from 86 to 99 and pulls very nice. It was very noticable. perhaps they didnt put cams in and just tuned it?? Maybe now they will put cams in and call it a 103BB ;-). did you get a dyno printout? What TQ are you running now? Personally, the 255 works so well in the 96 I dont think it would be worth me going to 103. If I did I would change cam and do heads.
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Cruiser
Joined: Jul 2011
Posts: 196
Likes: 2
From: Murfreesboro, TN
Rode 265 miles today, it runs a tad smoother, and I picked up a few extra MPG...BUT I didn't care about either . I wanted and was SOLD a roughly 10% increase in torque. What's worse is that there was absolutely NO difference at 3000 RPM and below, which is most of my riding. I simply got screwed...ripped off, lied to, no noticable riding difference, with the numbers to substantiate that as well...and I have a dummy light that stays on and they can't figure out how to get it to stay off...it's annoying during the day and a glaring safety hazard at night. I can't begin to tell you how bothered I am...and I'm keeping my response "clean" as a public site. I wasted a 130 mile drive/ride round trip to my dealer, had nothing done, got charged 50% more than quoted, then my integrity was questioned with a "I never said that", and they can't fix my dummy light that stays on. This dealership is great and I've had an amazingly positive experience and really like their crew...let's see what their gonna do? It's not like thev've never added cams to a 96" engine and had it dynoed. Dean
Cruiser
Joined: Jul 2011
Posts: 196
Likes: 2
From: Murfreesboro, TN
Rode 265 miles today, it runs a tad smoother, and I picked up a few extra MPG...BUT I didn't care about either . I wanted and was SOLD a roughly 10% increase in torque. What's worse is that there was absolutely NO difference at 3000 RPM and below, which is most of my riding. I simply got screwed...ripped off, lied to, no noticable riding difference, with the numbers to substantiate that as well...and I have a dummy light that stays on and they can't figure out how to get it to stay off...it's annoying during the day and a glaring safety hazard at night. I can't begin to tell you how bothered I am...and I'm keeping my response "clean" as a public site. I wasted a 130 mile drive/ride round trip to my dealer, had nothing done, got charged 50% more than quoted, then my integrity was questioned with a "I never said that", and they can't fix my dummy light that stays on. This dealership is great and I've had an amazingly positive experience and really like their crew...let's see what their gonna do? It's not like thev've never added cams to a 96" engine and had it dynoed. Dean
Last edited by slickrick_58; Oct 9, 2011 at 08:30 AM. Reason: sorry for the ouble post