Mod 2 cam versus 265 cam on a Tillotson 212 / Doodlebug minibike

Mod 2 cam versus 265 cam on a Tillotson 212 / Doodlebug minibike
Tested the Mod 2 cam and the 265 cam back to back with a zero to thirty and a top speed run on the Tillotson 212 Doodlebug minibike to compare the difference in performance.
Doodlebug minibike playlist - • Baja Racer/ Doodle Bug...
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Parts used -
265 cam -
www.ebay.com/i...
Mod 2/3 cam - www.ebay.com/i...
Don't forget to leave a comment to let me know if you enjoyed this video! :)
*********Disclaimer*********
Please do not try to re-enact or recreate anything you see in these videos.
Black66 does not take any responsibility for injuries or equipment failure created by doing so.
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[@scrappyhustler7467]

Merry Christmas Dave now my Christmas is complete and I'm remotivated to complete my build 😄

[@Black66]

Lol ! Thanks! Have to get out there and enjoy that bike ! Merry Christmas 🎄

[@heathenprojects2639]

I need to work on some of my bike I've got 2 running out of 6 right now

[@srcobra50]

I have a suggestion for a video of you’d like to do it. Test between a Hot 265 cam and a Dyno CM 265 cam. The dyno has the same lift but more duration than the hot 265. Think that would be a interesting comparison. Just ordered a Dyno 265 for my bike can’t wait to try it

[@leeboi96ify]

can i buy this baja doodlebug db30 from you?? willing to pay

[@Black66]

Check out the doodlebug playlist. The bike looks a little different now kzbin.info/www/bejne/iaalf61mn61oprc

[@trevorgog3776]

What’s better the fire265 or the Superman 265??

[@Black66]

Its a matter of opinion and the set up but I really like the Hot 265! Check out the Doodlebug playlist for many cam tests. kzbin.info/www/bejne/Z2WUoKp6f7x9ndk

[@albertpeterson7134]

Black66 I Hope You Had Merry Christmas

[@Black66]

Same to you and yours! Merry Christmas!

[@Jalen_Knight8526]

The 265 could have climbed to 60

[@Sosant260]

Merry Christmas buddy

[@Black66]

Merry Christmas!🎄

[@CaptainMurphy627]

I know I'm a bit late, but do I need to put on a billet flywheel and rod before I put in the cam, or can I do the cam without the flywheel and rod?

[@JadenCrocker]

Could I get a away with using the hot265 cam with no billet rod? I have the billet flywheel, 18lb springs

[@JadenCrocker]

Etc. pretty much everything but the billet rod

[@Black66]

I would Add the billet rod.

[@JadenCrocker]

@@Black66 thought so. Thank you

[@BuckeyeBallistics]

Any 301 or 420 builds planned?

[@Black66]

I possibly could do one . I never know what type of bike or vehicle I’m going to end up getting .

[@tashatorrid]

You try the mod 2 with ratio rockers yet? I've had a set but hadn't got around to it. Probably on the next build

[@Black66]

I remember you mentioning that . I haven’t tried it yet . I’ll have to do that

[@madness_-yg3lw]

@@Black66 yes the mod 2 with 1.3 ratio rockers is a real power house

[@madness_-yg3lw]

But when you add them you will lose some rpms im running a mod2 in a non hemi 1.3 ratio rockers and 26lb valve spring and ec billet aluminum retainers i turn 8k on the dot with no valve float it just hangs at 8k

[@jamesrothwell8508]

@@madness_-yg3lw For some reason my mod 2 cam runs 8200rpm in a Tillotson/ducar engine hemi

[@MrLopez-lm4jk]

What kind stamped or roller ​@@madness_-yg3lw

[@bradcarpenter2396]

What does it feel like when the valves float ❓❓❓

[@AnGryCruizer]

happy holidays Doc Man that lil grasshopper is bionic with that 265

[@Black66]

Happy holidays man! Ya that 265 is bionic!

[@AnGryCruizer]

@@Black66 hell ya thanks for keeping the dream alive

[@JNC1973]

So I have a 196cc with torque converter and the usual air filter, carb and header upgrades on it. I also have 18 lb valve springs that i never bothered to put in yet but will eventually. I was thinking about swapping out the cam for a better one but not sure which one i should order. What cam would you suggest i buy in order to make my bike hit a top speed closer to the 50 mph mark or higher ? As it sits right now with the stock cam it hits 41 - 42 mph. I really want to get up to 50 minimum.

[@Black66]

I would try those 18lb springs . I gained about 8 MPH by upgrading the springs on my MB200. Check out this playlist kzbin.info/www/bejne/jmG2nnSQf5ukjZo

[@JNC1973]

@@Black66 oh really ? I had no idea the springs alone added any speed. Now i'll have to try that. Thanks !!

[@JNC1973]

@@Black66 I've been buying most of my mini bike upgrade stuff from OMB Warehouse and the Grey Goat has been basically guiding me on what to do in order to get the most speed and surprisingly when I asked him if I needed to install the 18 pound springs he replied no they wouldn't change anything in my set up. That's why I never bothered with them. Now I'm kinda surprised to hear you tell me yes install them cause I could get 8 more mph from them lol. Has the Gray Goat lost his mind ? Thought he was supposed to know everything about mini bikes hands down lol ? ;)

[@Black66]

@@JNC1973 On a MB200, the springs are really light weight. They totally limit RPM potential of the engine. So adding 18lb springs let the engine rev to is full RPM potential .I gained 8 MPH. If your engine already has decent valve springs, 18lb springs won't make much difference. If it does have weak valve springs the 18lb springs will make a difference.

[@Deucealive75]

Did the 18lb springs get you to 50? What were your results?

[@slim2peezy281]

So I’m about to do a build on my tilly hemi I’m adding a 308 cam, 26 lb springs, billet flywheel, billet rod tillotson 212, champion rockers, chromoly pushrods 5.11, retainer kit for 26 lb springs, and a tilly race flattop piston, and a .010 gasket, and I’m porting the head and valves. Do u think I need anything else to be safe? bc imma be riding around town a lot and about how much hp u think I will add?

[@JVScustoms]

I was hoping to see a video from you today. Thank you for the awesome content. Hope you had a merry Christmas

[@Black66]

Thanks! Merry Christmas!

[@jacobneymeiyer9091]

Sometimes it seems like you run out of road to get a true top speed. Sounded like it coulda turned more rpm if you had a bit more road

[@Black66]

Ya I think so . I use a different test site now with a longer road so I should get some better speeds .

[@scottjoy2094]

Merry Christmas 🎅 🎄 Black66 !

[@Black66]

Merry Christmas!

[@Black66]

Merry Christmas! 🎄

[@ThatbaggedOBS]

You should do a 308 cam vs like the 265 or something like that. Im curious because i have a 308

[@Black66]

I will do that. I have a few other cam comparisons coming out too

[@ThatbaggedOBS]

Thanks man

[@mylandbristow6854]

Hey man merry Christmas, and what website did u get that cam from.

[@Black66]

Merry Christmas! I just added the links for both cams in the description.

[@Matt-im4jz]

Would you sell it

[@waynebrown5428]

Merry Christmas David!

[@Black66]

Merry Christmas! 🎄🎁

[@javierpagan364]

In the next video can you try a 3 stage f&b pipe vs a normal 3 stage

[@Black66]

I have a video on that already . I’ll put it out there soon

[@krisjenkins4040]

Niiice! Does the police ever bother you while driving on the road?

[@Black66]

No not yet...

[@eliastrejo5989]

Merry Christmas

[@Black66]

Merry Christmas!

[@koljag5]

It'd be interesting to see what rpms they are running.

[@Black66]

Ya me too . I’ll have to add a tach

[@madness_-yg3lw]

I got a mod2 in a predator 212 non hemi turning 8k on the dot under load and by the sounds of it hes getting anywhere from 6800 to possibly 7500 but hard to tell that would be my guess he only is running 22lb spring and no shims

[@jagman2962]

Hope you and your fam had a great Christmas!

[@Black66]

Thank you! I hope you did too!

[@peniaji_yt5762]

Ok can you make a video how to put a 212cc predator on the coleman CT200U-EX mini bike, it seems a bit small and I seen people use it for monster moto 80.

[@Black66]

I have a video made on that topic. Check out this playlist kzbin.info/www/bejne/jmG2nnSQf5ukjZo

[@peniaji_yt5762]

@@Black66 it won't let me click the link

[@Black66]

@@peniaji_yt5762 kzbin.info/aero/PLkbj-ip-5FzbVBVqMi23O5noFSAbhNOp1

[@Black66]

@@peniaji_yt5762 kzbin.info/www/bejne/iXOYomuFfLeclaM

[@Black66]

@@peniaji_yt5762 If tou cant use the link maybe you could go to the channel home page and click on playlist.

[@srcobra50]

Merry Christmas great video

[@Black66]

Thanks ! Merry Christmas!

[@BustedKnucklesBuildsTexas]

Is that cam the 265 Hot or 265 fire ? Bike runs good .

[@Black66]

It's the REV PRO superman series. Dover power

[@BustedKnucklesBuildsTexas]

@@Black66 where can I get one ? Thanks

[@Black66]

@@BustedKnucklesBuildsTexas I'll get you the link when I get back over to my computer

[@BustedKnucklesBuildsTexas]

@@Black66 Thanks

[@Black66]

@@BustedKnucklesBuildsTexas The link for the cam is in the description

[@keithbrown7088]

I got that cam it's pretty nice and a mild build fly wheel and rod 22mm makuni no head work yet but if I put a 24mm carb on it will it hurt tje moter with tje head still being stock besides the 22 pound springs

[@Black66]

No , it won’t hurt it .

[@madness_-yg3lw]

The bigger you go the lower your port signal will be. the more low end power you will lose but you will make more top end i run a vm22

[@keithbrown7088]

@@madness_-yg3lw eventually I will have get some porting and upgrade valves right some head work it's just a cruiser om not racing or anything I just want go fast 😉👊🏻

[@madness_-yg3lw]

@@keithbrown7088 oh it will move iv been running my set up almost a whole year together built very powerful and very fast

[@madness_-yg3lw]

@@keithbrown7088 as for valves stock ones will work but keep the spring pressure 26lbs and lower i run 26s on stock valves and any some porting and polishing nothing to crazy just knock off the sharp edges other then that it will be a rocket but i would run a stock carb for now then swap to a vm22

[@antoniomosqueda4809]

Don't need set screw on those clutches better if it has play side to side; it aligns itself as you accelerate.

[@Black66]

if you look at my other videos, I usually don't use set screws.

[@Black66]

This was my favorite clutch so far kzbin.info/www/bejne/i5urmmtjfrWFr5Y

[@Black66]

But then again, I liked this clutch and this combo too. It almost pulled 70 MPH ! kzbin.info/www/bejne/bqi5fpd6idqnhrM

[@ant-lr5iv]

Did this cam require clearencing

[@Black66]

No, it was a drop in .

[@ant-lr5iv]

@@Black66 it is very good, I gained a lot of top end in my tilly and I still ran out of road. I’m 240lbs and I hit 48 but it has more

[@sailingvesselkuma4366]

If u upgrade to a 275 cam what else do u need to do to make it smooth and work easy ?

[@Black66]

One thing I would need for sure is some stiffer springs . I think piston to valve clearance would be ok . This engine has a lot of clearance. I would make sure the lobes clear , but I think it would be a pretty easy swap .

[@madness_-yg3lw]

If you wanna a easy set up run a mod 2 cam on 1.3 ratio rockers that set up will run 292 lift for intake and 300 on exhaust the cam itself will be easy on your valve train rockers give the cam the lift it really needs absolute moster

[@sailingvesselkuma4366]

Ok 👌

[@madness_-yg3lw]

@@sailingvesselkuma4366 depends on what your looking to do with the engine and how you want it to preform but for a fast cruising mini bike run the predator 212 non hemi so you can run the stamped 1.3 ratio rockers they are dirt cheap and super easy install but theres a whole list of reasons why i choose the parts did but from experience with the mod2 and 1.3 ratio rockers its a sneaky little set up to some great reliable power

[@jamesfalvey77]

Love the channel

[@Black66]

Thank you!

[@DIYbecause]

Were you still using the stock flywheel on this build?

[@Potato37184]

No at this rpm the stock would brake

[@markday2198]

What ( size ) pushrods are used ?

[@madness_-yg3lw]

Hey man you really need the non hemi head with the mod 2 and 1.3 ratio rockers the mod 2 has alot of duration no lift so the 265 is gonna feel a little better then the mod 2 when you give the mod 2 the lift it needs it will really wake up and pull alot harder then with the 1:1 rockers .2245 lift add the 1.3 ratio rockers and that will take the mod 2 to 292 lift on intake 300 on exhausted 245 duration for both in take and exhaust with a 109.7 lsa ( THE MOD 2 CAM WORKS BEST IN A NON HEMI HEAD) not to mention the mod 2 with low lift and moderate duration is easier on the valve train then a pointy 265 so you will need less spring pressure to control the valves and possibly get even higher rpms but man do you gotta run the mod2 with ratio rockers it the only way to really feel the potential of that cam

[@madness_-yg3lw]

But awsome comparison video when you optimize the engine for the mod 2 cam it will blow the doors off a 265 especially if with no lift it make such close power to the 265 that when you add the lift to the mod 2 it would almost be unfair to the 265 especially if your at optimal compression for the mod 2 of 11.5 :1 but personally when picking a cam i went with one that had duration not lift you can add lift later by adding ratio rockers you can add duration without changing a cam and duration is what gives you power throughout the rpm range lift determines where the power comes on at and lsa controls your where your power band is but in reality theres no bad cams only cams ment for different applications my next build im gonna really push my number in the 212 non hemi im gonna run a 274 cam 260 duration and 1.3 ratio rockers at a 111 lsa i wont share all my engine building secrets but i will tell you one thing start paying closer attention to your lsa and duration you can make lift later

[@Black66]

@@madness_-yg3lw I hear ya. I know the mod 2 is a really good cam. I do these videos to show what you might get with a given engine. . Like if a guy has a Predator Hemi and drops in a 265. I know there are many variables on any of these combos. Im just throwing one combo out there. I actually have a video showing that the mod 2 works better with a standard Predator head verses a Hemi head. I have more Mod 2 material coming out in future videos that you might like.

[@madness_-yg3lw]

@@Black66 that will be awesome i cant wait to see it thanks man

[@madness_-yg3lw]

@@Black66 there are so many good combos to set up that essentially theres no wrong way to build one of these little engines and in this video it is a great comparison of lift vs duration but if you get a sec check out puals karts video on choose a cam its almost a hour long but is packed with so much powerful information it blew me away listen to him talk about picking a cam and how different aspects of the cam effect different things i cant wait to pair one of his 32 28 14cc heads with my mod2 and 1.3 ratio rockers

[@Black66]

@@madness_-yg3lw Thanks! If you watch my Mega moto series, you will hear me mention Paul's karts. I'm going to use one of his cams in that build. Probably only for a little while and then I will most likely switch it out for something else to see the difference. If you check out my other videos, I have tried numerous combos. I'm not trying to get max power out of any given combo. I like switching it up to see what works on a given engine on an actual minibike or kart without the dyno. Thats the fun part for me.

[@koljag5]

You mentioned that it would be better with a long pipe, I'm building the engine on my ct200u-ex, do you have a header you recommend? I've see the really long one from go power sports and the other one from omb, but I haven't really liked either.

[@Black66]

They have a long pipe on Amazon that I haven’t tried yet . It exits out the opposite side , but has a screw on muffler . That one looks different than the other ones I’ve seen .

[@eliastrejo5989]

Hey If you don't mind me asking what size is that fuel line hooked up to the gas tank.

[@Black66]

It's a 1/4 ID fuel line. You can get it on eBay or OMB warehouse website

[@eliastrejo5989]

@@Black66 thanks man, just making sure It was that or the 3/16 line.

[@Black66]

@@eliastrejo5989 Sometimes I use the 3/16.

[@eliastrejo5989]

@@Black66 ok just making sure