I BUILT MYSELF A CRAZY FATBOB
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- čas přidán 26. 07. 2024
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I got a chance to build myself a bike!
This is by far, the craziest Fatbob I have ever built & ridden.
Cam Specs: Cycle-Rama CR 540
Intake Opens 25* BTDC
Intake Closes 45* ABDC
Total Intake Duration 250*
Exhaust Opens 69* BBDC
Exhaust Closes 9* ATDC
Total Exhaust Duration 258*
Its a 128ci Alpha Performance Engines Cylinder & Piston kit with 12.0:1 Pistons.
The Heads are from A.P.E too & are their stage 2 heads which have been CNC Ported & come with high lift springs installed. They are still running the stock size valves.
It has a 64mm Throttle body & intake manifold from Screamin' Eagle.
The compensator ramp has been upgraded as well as the clutch springs.
New high capacity lifters from A.P.E went in as well.
The D&D Low cat is my favorite 2-1 pipe on the market because of the performance levels offered from it, but more importantly, the sound!
I decided to put this combo together because I had these parts sitting on the shelf not doing much & it has been a long time since I have used the CR540 Cam.
While it didn't make as much power as I thought it would, it is still VERY FUN to ride & sounds absolutely mental.
I have lots of plans with this bike involving cam swaps & different exhaust pipes to try out on it so Subscribe to the channel so you can stay up to date with the uploads & changes.
Please leave any questions in the comments & I will get back to you asap.
Follow me on Instagram / tommy_twincam_miller
I work here ddhd.com.au/
You can call me on 0746342766 during AEST business hours.
Intro 00:24
Cam Install 1:02
Centering Oil Pump 1:22
Lifter Cuffs 2:11
Ring Gaps 2:55
Pistons On 4:18
Cylinder Sealant 4:35
Cylinder Heads 6:01
Installing Heads 6:47
First Start Up 7:16
Pre Dyno Talk 9:28
Dyno Runs 10:36
Dyno Graph 11:19
Skids 13:18
Outro 14:00 - Auta a dopravní prostředky
Only in the 140's you say. Smoking the tires while rolling and the huge smile on your face says it all.
It's sooo much fun!!!
appreciate when a master tech goes out and does some rollers to make sure the bikes built right instead of comparing dyno numbers and hitting the cruise control its whole life.
💯
Out of all the videos on M8 builds, you definitely have superior results than all others. I've referred to you many times on other channels. I guess when you know your stuff, your the best. Wish you were in the states. Shipping costs would kill me.
Thanks for the awesome feedback mate.
I'm glad your finding the channel helpful!
Thanks for watching
Beasty! Great Build!
Nice build ! Love watching your videos!
I am thinking about putting CR483 cam in my breakout. What do you think about this cam?
A 114 is already more than enough. I was just doing over 100 on my FXDR earlier today and I wasn't even in top gear.
I also have a Vrod Muscle. I thought I wanted a 128 kit but these two are more than I need.
Top job Tommy, looks like a great ride right there!
Keep the videos coming.
Thanks, will do!
Now that’s what a Harley is supposed to sound like.
That FATBOB rides great stock. I just can't fathom what it would be like with that engine build. Like to see what a smaller cam produces. Finding a bone stock bike like that for a good price point then having engine work like that. Hmmm. 🤔 Enjoying the channel and subscribed.
😮 nice!!!! Have fun ripping around on it.
Absolutely love these start to finish build videos, congrats hitting 9k, keep them coming champ 💪☝️
Cheers for watching!
Congratulation Tommy on 9k subscriber, awesome build & with some handy tips,
what a little HULK , look forward to the next video on it cheers
Cheers for watching & supporting the channel 👍
Congratulations again on an incredibly informative video. Ihave viewed soooo many of these I feel I might be able to repeat it blindfolded , except for the rings of course and the test ride lol Thanks Wil
Thanks for watching 👍 glad your enjoying them
Great video as always.The smile on your face said it all😊
She's a ripper!!!!
Thing sounds so good mate. LUMPY
Great video mate, I havent watched one for a while. You're getting better and better. Keep it up!
Cheers mate! 🍻
Glad to see
I think there's more than plenty there to be a wicked sick boulevard brawler. Very nice.👏👏👏💀
Awesome job mate.keep up the great work
Thanks, will do!
Thing is a ripper. That number on a tiny bike will defo spin, lol. Thanks man!
Sweet bike mate love your work
Thanks 👍
Fair play Tommy, the quality of your videos is getting better every time and this one is as good as any content created out there. Keep up the good work legend.
Much appreciated! Thanks for watching 👍
awesome tommy close to my new build 131 12.1 + 2mm valves cr540 7.1 injectors
hope to hit 160 hp trying out a noon 2-1 pipe will see soon but snowing here.
way COOL😆like fatbobs even more now
Just found your channel mate.. Awesome content, Thank you for posting up your knowledge and skills. Subbed and following.
Thanks for watching mate!
Wow what I build!!! Another great video from a true ‘Master Tech!’ I love watching your videos and loved this one even more as I own a 114 Fat Bob but mine has S&S wizardry in it! Look forward to the cam swap vid!
Thanks for watching! Glad you enjoyed it.
Cam swap video will be a few weeks away yet.
@@MasterTechMiller well I’m sure you’ll have a lot of fun on it before the cam swap 👍🏻
Test ride!! SMOKIN. 🙏🇦🇺
Superb Mr Miller
Thanks for watching!
I'm very impressed with your numbers.
I was a little surprised it didn't make 150hp & 150ft/lbs but either way, it's still VERY fun to ride.
Thanks for watching!
I am a huge subscriber, love your videos, keep them coming. Miss my Fat Bob, softails are too low and light for me...But I miss it...
Cheers for watching & supporting the channel!
Love it....
Skills 🔥🔥 The end.
Thanks for watching
When I find a pre owned, bone stock one that I like, your doing an A.P.E. build for me mate.
I know where a 2018 one is. It's only got a stage 2 kit in with really low ks. It's got T-Bars on it & it's White.
I'll give you a ring tomorrow mate.@@MasterTechMiller
Sounds bad ass! The cr 482 would be a proper ripper at that comp
Another ripper build, I’d love to get my fatboy built by you
Thanks for sharing Tommy. Another great build. Cute little ring gap grinder! How can i get hold of you to chat about building my 2019 Breakout 114. Cheers
Sorry for the late response. I missed your comment.
You can email me at workshop@ddhd.com.au
What a beast! Would love to give you my old 96 twin cam to put in whatever parts you had sitting around….Can you give a rough cost breakdown for all us who love to dream. Love you work TM
If you were to do a 96 to 107ci kit from APE with Cams & had it built for you including a dyno tune it would be somewhere around $6700 AUD. Thats ride in ride out.
Great build, sound and Numbers!! what was the reason you didn’t just enlarge the valve?
I had these heads on the shelf doing nothing. I thought I'd use them
Fuck yea man, damn that sounds bad ass. Very nice Tom. Do those heads come ported like that or did they get special porting? Love the DND pipe too. I'm going with them next time....I always use bassani, ready for something different
So these heads in particular are from the exchange program from APE.
You send your heads to them & they send you these back,
However, if you want a set of stage 2 heads from APE nowadays, they don't come CNC ported. They come hand ported & textured, flow bench tested & proven. They still come loaded with high lift valve springs too.
The reason is to help lower the cost for the customer on the exchange program. The hand ported & textured heads flow just has much as the CNC ported heads in this video.
They do still offer a CNC ported option if it is requested though.
Thanks for watching!
The D&D Lowcat is my favorite 2-1
I love the fat bob. I bought one brand new back in 2014. It was an experience for sure,was my first brand new bike. We put vance and hines 2 into 2 big radius, screamin eagle heavy breather, the cone fiilter, had the orange tuner back when they were tunable. I hadna 12" mini ape bar for it too, but after riding it a couple weeks with the stock bar, i left the stack bar on it. Will you leave the stock bar on yours Tom?.
Yeah I think I'll leave the stock bars on this one. T-bars are pretty cool but I still don't think I'll be putting them on.
I will sell this bike in a few months.
Absolutely beautiful build and excellent tuning.. what do you think of the CR 480 MT for a stage 2
It's a great choice for a Touring model 👌
I would suggest a CR485 for a Softail
Ok thank you
nice
Love the Chanel, thanks for your commitment.. Have you ever looked at different oil filters and have any that would be considered good filters and any that are not considered as good filters? I have always used an OEM filter however was looking at trying a K&N.
Thanks for watching 👍
I prefer to use the OEM Filters as they are superior to many aftermarket filters in many ways.
There is a video going into detail about this on CZcams. I will try find it & comment the link to you.
Please like, share & subscribe if you haven't already.
@@MasterTechMiller Thank you
Another great video seeing it all come together. That thing would love to rev!!! Just a question you don’t have to answer if not comfortable but Is that dealership your at tied in with A.P.E dealing/partnership
Yes it is. The owner of APE owns the Dealership I work at.
Oh fair enough cheers
Do you like the HD throttle body and manifold 6.4 back ordered only (6.8) or the HPI 6.2 and HD 6.2 injectors for my 128 with 483 CR . Going to replace my 475 S&S , decided on that and will not have to replace valve springs . What air cleaner do you like , I have a Arlen Ness 65 deg side funnel .
Hi Tommy, great build, do you think the 2-step 4.5” Union 2-1 pipe by freedom performance would work well in a similar type build?
I am very confident that exhaust would work well
Great build mate. Are you confident in the belt drive running 140hp? Cheers
Absolutely mate. No concerns at all with the drive belt.
Did you 5 thou times 4.25 on second ring also?
love it Tommy. Don't forget you're at 2,500ft !!
How come years ago manufacturers supplied piston kits with rings pregapped for their design bore, now its grind your own? It was only special order where you gapped your own rings?
I believe it's because a lot of people may been assembling their engines & not checking the gaps, just assuming they're good to go.
Then if the engine failed they would argue that the ring broke due to manufacturing faults.
I would assume that they make the rings to be nice & tight so they HAVE to be set otherwise the engine can't be put together.
That way the ring company know they have at least been set.
It is true that you can order rings from Total Seal that are specifically set to your requirements.
I want one.
Hi did you do Chain Kit Conversation from the Belt Drive ?
Nope. No real need to at this stage. The belts are good for upto 180hp.
Would trust you to build my engine up, thanks for the awesome videos 😊
Thanks for watching 👍
Do you know if a full fender from the low rider will fit on the fatbob?
I'm not sure but considering the from ends are very similar & the way the fender fits, I would assume it will
Very nice builds...Do you recommend a Cr 483 or a cr485 cam for a 114 Roadglide Special with stock heads,2into1 into 2 Bassani headers?
Absolutely 💯 you can't go wrong with wither choice.
Both provide awesome grunt with great peak HP numbers. The 485 will make sightly more peak HP & the 483 has the best idle sound out there
I got the CR485 in my 114 fatbob with 127 hp and 130 tq.I love it bro
Stock heads on your 114 fatbob? Gas mileage decent?
@@alfredomiranda7002yeah mate stock heads.Nah gas mileage is down but only got a 3 gallon tank.Gets about 250 km to a tank ,if i down pound on it.Even less if i flog it.ive got v&h short shots.But dam bro it sounds awesome
Thank you Brother.
Would love to see you do a 480mt in a lowrider or similar to compare to the 483 torque curve and how early it comes on vs how long it lasts compared
If I get the chance, I will
@@MasterTechMiller love your work mate keep it up 🍻
🤘🏽🤙🏽
What made you decide to use the 128, over a 131 or bigger displacement now that they are avaliable.
I just had the bits on the shelf.
I've built plenty of other 131ci demos before. Check them out on my channel.
You build the meanest bikes, Bro....Whats your favorite cam? i like the s&s 475!!
Cheers mate! Thanks for watching.
The CR485 is my favourite for Softails.
For Baggers I prefer the CR480
@@MasterTechMiller nice
Would there be a big difference on a cr485 and a cr483 on a stage 2 softail fatboy? I’m debating which one to get. I love the choppiness of the cr483..
Just subscribed 👍👍
Thanks for the support
just wondering if you have done anywork with rb racing 2/1 exhaust looking at replacing my bassani 2/2 pro streets if not which is the best 2/1 exhaust for torque and hp with out been too quiet
What's your current engine combo?
@@MasterTechMiller currently just stage 1 the bassani pro streets 2/2 and the screaming eagle extreme wedge and tune i would like to put a ape 128 kit on maybe street performer or sneaky pete
I really like the D&D Lowcat (same pipe as on my Fatbob in this video).
Elevation have anything to do with that peak number at all? Or was that corrected for sea level?
Add 6% to these numbers to get corrected sea level numbers
CR515 cam in next mate?
I think so! 🤔
CR 483 cam ?
It's too small for the 12.0:1 compression ratio. I think I'll do the CR515 next
The problem is I think it's the 2 into I exhaust,,,u would get better numbers with the 2 into 2 system
What size injectors?
6.2
Hey mate have you ever use moonshine kits from the USA
Nope
Should've put T Bars on em'
Being from the US, I always have a moment of fear when I see you turn onto the main road and merge with traffic 😂
😆 😂 😆 Yeah I can only imagine some of you guys stress levels
Hey Tom, question. Is it possible a cam for the M8 have an 800 lift???. This channel Official Mac revealed his road glide build with a custom built 2 into 1 and told me the cam had an 800 lift. It does has a crazy lope to it, but 800 lift?
I've never heard of a cam with that much lift but I would say it is possible with the correct ratio rocker arms.
I know that when guys are using .60p lift cams they have to modify some cam support plates to accommodate the lobe.
@@MasterTechMiller...he could be embellishing the story a little. Check out the bike, his channels called Official Mac, and the bike he calls it "bipolar".....he does have an insane custom built 2 into 1 stainless pipe that is incredible.
@@michaelmitchell5909 yeah cool. Will check it out
What did you use for tuning software
Direct Link from Technoresearch
Do you ever use the PV? I had years of SE tuning, the original then the orange box. Used the TTS on occasion, but never the TR software.
Hi Tommy just wanted to ask why. Plug up the oil passage in the cylinder head. What does that benefit from
The passage is there from factory. It's part of the pil cooling circuit around the exhaust valves in an effort to keep the heads cooler.
The head gasket has an embossed area that specifically seals around the passage.
The idea of tapping the passage & adding the screw plug more or less eliminates the possibility of an oil leak from the head or gasket.
In saying that, I have never came across and M8 Head that's leaked oil from that area.
I just like the effort & level of professionalism taken with the heads
@@MasterTechMiller understood. I also build big cubic inch M8. And I have never also. Sean an issue with oil leak at the heads. But plugging the hole will now make the valve area on the seat run way hotter with no oil to it. That could eventually burn up the seat of the valve through time.
Hi Tommy, why not 515 cam instead of 540?
@iginogasparini3369 it's not the feed or return passage. It's a casting hole to clear out the other passages. No harm to the cooling system. It's blocked off by thr OEM head gasket in stock form.
@RickyG512 I didn't have a 515 on the shelf when I picked all the parts. This 540 has been there a while so I thought why not.
What Does the EPA say ?
We don't have EPA here. Our State is pretty relaxed about it all.
Sometimes you may get a cranky officer that will write you up for modified exhausts. If they do, you need to have the stock one fitted then have it inspected & ticked off. Then you can swap out your OEM system to the aftermarket one.
It's simple, don't be rude or aggressive towards the police, they won't write you up.
Would you have been better with the CR 515 maybe . I just sent you a copy of my tune you ask for on my 132 build with 515 CC cam you said i should have got more out of the build that i did . What did you think of the tune and did you get it .
I will reply to your email
@@MasterTechMillerwe’re are going to reply on an email or one of your videos.
515 is golden. Not using it is cost cutting.
It's a great cam! I have used it in a few other builds & so far it's never let me down.
I thought I'd go with the 540 this time just for something different.
I'll be doing a 515 & 485 swap in this bike in coming weeks. That's going to be a great comparison as the 485 & 515 have the exact same timing events, only the lift is different so that should be a great back to back comparison
@@MasterTechMiller I was actually talking about the Loctite 515. I think its magic and easy insurance for leak prone flange surfaces.
@TheCuttz1984 Oh my bad!!! Yeah I'm all for it.
That’s a break in ride
Should have known that. 483
Thinking the CR515 is next
Great video. I have same bike wih 114 andSE torque cam, extreme ventilator air filter and Rinehart mufflers. Your attention to detail is amazing. Why no oil pump mods? What is your break in process?
The 2020 & Up models all come with the latest 8 lobe oil pump from Harley-Davidson. It is by far more than capable of meeting the demands of all the big bore kit builds out there.
The cam plate too is also up for the job.
I believe the first few generation oil pumps gave it all a bad name leading to people thinking an aftermarket upgrade is the only way to go.
My break in process involves heat cycling the engines 2 or 3 times then it's straight to the dyno to get the Air fuel ratios as close to spot on as possible to avoid cylinder wall washing from being too rich or from excessive heat from being too lean
@@MasterTechMiller Thanks for informative response. I have the 22 model and read about pump improvement.
What’s involved for a heat cycle, will heat cycles be good for brand new bikes as well as rebuilds?