Tillotson 225cc Big Valve Build | 9,000 RPM, 25HP Billet Maniac!

The Tillotson 225cc high performance go kart or mini bike engine is already a powerful small engine, but in today's Honda clone build episode of CarsandCameras, we're installing billet parts and doing a ton of DIY head work to the Tillotson 225cc engine to take it from 15 horsepower stock to 25 horsepower. In fact, on Go Power Sports dyno, this engine makes over 30 horsepower running on methanol fuel. The parts list is long and very impressive- this engine build represents the cutting edge of widely available small engine performance parts. Thanks for Watching!
----------------Go Power Sports Parts Used in Today’s Video---------------
Tell them CarsandCameras sent you at checkout:
Tillotson 225RS long block: bit.ly/38VCvzv
Billet side cover: bit.ly/3Nd3QSI
Billet rod: options available, call for your specific application
285 camshaft: bit.ly/3wYW5cs
Billet flywheel: bit.ly/3m3Xx8d
Dual 55lb valve springs: bit.ly/3zhe7cJ
Exhaust valve (25mm): bit.ly/3m5ze9Z
Intake valve (28.5mm): bit.ly/3wYTOOl
Titanium valve retainers: bit.ly/3PUkzfv
Racing coil: bit.ly/3x9rQk0
28mm flat slide carburetor: bit.ly/3oWSFRJ
Header: bit.ly/3x9R2Y0
Chromoly pushrods: call for availability + length
Gauge roller rockers: bit.ly/3m2W2XI
3/16” fuel line: bit.ly/32iAlNe
Fuel filter: bit.ly/3f81xRe
Tillotson oil: bit.ly/3sRRgAk
Facebook: goo.gl/VR6mh2
Instagram: bit.ly/3T8njaF
Go Power Sports: bit.ly/3QKyODE
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The following video features activities performed in controlled environments by knowledgeable persons. DO NOT attempt to duplicate, re-create, or perform the same or similar activities at home, as personal injury or property damage may result. CARS AND CAMERAS, the persons shown in this video and ANY CONTRIBUTOR, ARE NOT LIABLE FOR ANY such injury or damage. ALL CARSANDCAMERAS CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
Cars and Cameras makes no representation about the sufficiency of any safety precautions and equipment used in this video.

[@DriveBetter]

The Ikerometer needs to be a T-shirt. At a previous job we had to observe ASTM testing methods. My boss Jerry would fudge the numbers and thus implemented JSTM testing. It all works.

[@aaron7520]

Eye-crometer

[@leviwilder1205]

@@aaron7520 it's a play on Ike's name! ike-rometer!

[@justinwatch]

The eyecrometer has much closer tolerences than the Ikecrometer ever will do to aging optic faculties and the "Aw hell send it, it'll be fine" factor.

[@GrooveyGrubworm]

Big companies would like to know your bosses location

[@CarsandCameras]

I realized we built a big valve head, but we didn't share the valve specs! Stock is 27mm intake, 25mm exhaust, and we upgraded to stainless steel 28.5mm intake, and 25mm exhaust. Doesn't sound like much, but between the better design, larger intake valve, big cam, 1.3 ratio rockers, heavier valve springs, and lighter components, the valve train is WAY better than even a stock 225.

[@gokarting1018]

Y not 32 28mm valve head with a 308 cam

[@bryduhbikeguy]

Thanks for the update.

[@zachariekelley]

I just got an EC 228r wonder how it compares.

[@DetroitMicroSound]

The exhaust port on my DMP 70cc Puch E50, is 25mm.

[@moto6ixmoto83]

Still waiting for Tilloston to make a 225 with a dohc head.

[@GooseGosselin]

You know it's a serious CarsandCameras build when the "click" is real. Awesome build, can't wait to see do a hotlap.

[@spyder7758]

You guys should go on more adventures, you always remind me of the original Top Gear cast, and their adventures were truely legendary! Thanks for all the great content

[@EJ-74]

I'd love to see them do 3 hot wheel builds and take them on a adventure with Grind Hard Rather B Welding etc etc. That would be EPIC 🔥

[@timwilkinson2797]

Great idea Spyder !!!!

[@jason3044]

I always heard you gap exaust a little more than intake because exhaust valve gets hotter and metal expands more and the intake gets cooled off by fresh air fuel

[@dirtyd2316]

I gotta admit that when Charles first got added to the team I thought it was gonna mess with the dynamic of your videos but I was dead wrong and think he is a great addition and brings a lot to the channel.

[@robertevans9354]

Charles in charge big time

[@TheMapleDaily]

I am so ready for that next video ! I suddenly jumped into gokarts recently due to being gifted a old Manco White Fox 2 451-391 that I am replacing the B&S 5hp for a 212 predator and new tires, replacing a bent tie rod end on the steering, and a new seat and she should be ready to rip!

[@jamesmcgee9279]

Nice engine! Looking forward to the first rip on whatever you throw it on.

[@hensleyshobbies-doug7761]

Man that thing sounds wicked! Can’t wait to see that on something and going, around the course or track or whatever! Get er did boys, get er did!!!

[@joebufford2972]

roller rockers on a small engine I love it!

[@ChristopherIsIT]

Ike, so much knowledge to give and so good at presenting it. Charles seems to really know his stuff, too, with the added levity. And John brings it all together. Great channel all around, fellas. I always look forward to another episode. Looking forward to some car build stuff. I get some of that from Ike's channel. Keep them coming!

[@the900bot]

I’ve been subscribed since freshman year of high school, maybe earlier. I’m 23 now and still enjoy every video like when I was younger. Always enjoy seeing a cars and camera video pop up! Especially lately, lots of cool projects going on

[@EJ-74]

Card and Cameras 😆🤣 sorry bro but that was funny 🤣 We all screw up some times lol ✌️

[@CarsandCameras]

This engine is a monster! What should we put it on first?

[@robmanueb.]

The Ruckus!

[@manks5491]

the yard dart!!

[@magstrikefjerstad3192]

Ruckus!

[@traviskeeton6313]

Put it on the mtd minibike

[@DriveBetter]

Just for kicks, the smallest real car in the fleet?

[@miguelarmando2991]

I would love to see you guys do a video on how not to build an engine with the worst parts you can find and the worst technique, maybe a competition to see who can fry an engine first

[@twiztedmowers2]

Rtv wars coming I can see it.

[@FordGTmaniac]

The easiest way to destroy a small engine like this is to turn it into a race engine but cheap out by using the stock cast connecting rod, which will be thrown right through the side of the block at sustained high revs.

[@Sausketo]

Thank you for the 2nd click, i was taught to always do 2 clicks when using a torque wrench; many times i do it and the nut moves just a little bit more before clicking the 2nd time

[@brushybillroberts2654]

Putting the lapping compound on the flywheel and crank, is known as, "lapping them together." This is done on gears, slides on 1911 model pistols. We did it a lot when building inspection gages in order to obtain very close fitting parts.

[@Gear_Banger]

When checking the push rod length, you can also color the tip of the valves with a sharpie and instal the rockers try then rotate the engine a few times and when you take them off you can see where the rockers are sitting.

[@humpday2267]

I usually freeze my parts overnight if possible. That way I know they’re cold as they can be but good video regardless.

[@countrylife5199]

It would be nice to see more use of the already existing builds. It seems like it's just one project after another. It would be cool to see old builds revamped with your current skills and resources

[@CarsandCameras]

I agree. There are lots of builds that need finishing/tuning. Most of our energy has gone into building out the new shop (going on a month now), so our regular uploads have been less episodic. We're planning on getting back to finishing other builds soon. Thanks for the comment.

[@countrylife5199]

@@CarsandCameras looking forward to it !

[@mulld]

You guys need to build a jig onto a workbench for doing cylinder heads. I have one with a piece of stainless with a big hole drilled in the center for the tool to go up through. Then a small wooden catch basket right on the front edge to put all the small pieces valves guides keepers etc. Saves me tons of time and headache and only took me a couple hours to build

[@peterchristlieb]

I just test fired a Predator Ghost tonight and had the throttle do that, kinda figured it would so I put the front wheel up against a wall before pulling the cord. The 7/8 throttle kits need a thread or two cut off the cable sheath or the pressed on end pulled off and about 1/8 - 3/16 of the sheath cut back or the internal cable is too short for the Mikuni, Chikuni and WalBro carbs. Pain in the ass. Finishing up a 236 Tillotson with a Billet head, need to cut the pushrods to length and check the rocker arm sweep. Might post a Video on my little channel. Love you guys 👍🏼

[@pongping1378]

Seen red beard build a ghost great little engine keep up the content 👍

[@zacharywarren939]

Hey cars and cameras love the content keep up the great work

[@sonnybrooks264]

You can use an offset key in the key way to advance the timing, two fuel pumps, methanol fuel, bore the block 0.030 over.

[@jeffrykopis5468]

Does the offset key just change the ignition timing, or the cam timing?

[@silverbell800]

@@jeffrykopis5468 ignition timing

[@JVScustoms]

Man this is my favorite kind of video from you guys!!! You guys have no idea how much y’all have inspired me. Just did my first big build on a predator 224, tires out pretty nice if I do say so myself. Thank you guys!! Y’all are awesome!!!

[@oldirtyguru7004]

Damn 1 mill subs?? I remember watching this channel when I was in middle school around 2013 give or take an you guys had like 20k subs and I thought that was a lot

[@SabastianU]

It's been a lot of fun watching y'all progress over the last few years to, at times, almost seeming like you actually know what you're talking about (teasing). I know I.C.E. motor's aren't going anywhere anytime soon, but I wonder how long until you guys do a project with an electric power train?

[@nikkogives4883]

I’m early yay I love you videos you guys inspired me to buy a go kart and work on it 😃 have a nice day and I have bin sub for 2 years now

[@mikemelchiorre7414]

John , I see that your Dishwasher is around the corner from your sink . I used to deliver and install D/W 's . The Water needs to be real hot to do a good Job , So I recommend that you fill and drain it Several times to get actual Hot water to enter the D/W , The Energy requirements eliminated the Long duration internal water heaters long ago , until the water is Steaming , the machine will only do a sub standard job . Proof to me was my friend in an apartment over the massive water heater , doing a great job with the cheapest model Hotpoint , Mine being a high end Kitchen aid and I needing to run water hot , at the sink and then the fill drain trick .

[@guyhaydu364]

also you need to have the appropriate crush on main bearings so they dont spin, .003-.005 roughly definitely do your home work tho. on polishing the intake you want a desired 800 lubricated grit finish for correct atomization of stoichiometric ratio. i learned the hard way when i was a kid. you guys are doing great! keep it up.

[@Nocturnal5841]

been waiting for this all week work is a pain in the ass and watching y'all makes the week a little bit better

[@MikMech]

36:10 *John* - The 'Viva Frei' of the Cart World, with Stronger Hands.

[@CLCIII]

Nice thing with the methanol is it will definitely run cooler. More Power is a plus as well. Cooler And More Power - Mo Mo Betta!

[@budddove6480]

Using the compound is to ensure a good tapered fit when you decide to remove the timing key completely. The timing key is just that, a timing key. Its not what holds the flywheel in place, its used to line up timing. Myself as well as many others remove these keys completely when advancing timing. The taper on the crank is what holds the flywheel in place. We just use the compound as seen here to make that tapered fit even stronger since we remove the key. FYI, advancing a quarter width of the key is around 7 degrees advanced.

[@StpBeingPoor]

For those breather hoses look at using a vent to atmosphere baffled catch can. The more the crankcase can breath freely the better and it will also lower oil temps.

[@albertvenable4122]

The smoothness of the intake runner is debatable since there's no Dyno results to prove it makes a difference

[@ronniethompson3498]

My flow bench says it makes a definite difference

[@NN1Ckl.]

I'd love to see you guys collaborate with the "Robot Cantina" channel! Ya'll would like his Predator powered Honda Insight project.

[@eugenesbackyardrepair4593]

I love the billet parts and thT awesome orange/red lines a dedicated subscriber sent you 😁

[@mrromantimothy]

looking at that window seems like you need some lawn Care I'll come over and pull those weeds for you. lol

[@michaeltaylor7122]

You guys should work with arc racing and do a 5hp Briggs flat head build!

[@larrydavidson3402]

Looking forward to see this installed on the cart.

[@twocvbloke]

oooo, seeing the output shaft spinning away there and Isaac's shoelaces jiggling about near it, I had thoughts of those things getting wrapped round that at speed and acting like a cheesewire on his feet, best have him tuck them into his shoes when working that close, just so we don't have him in the hospital again....... :S

[@joshuahoward4962]

There’s a new mini Massimo mini bike with full suspension at Lowe’s for $699. Looks like you have to have to order and pick it up in store. You guys might have to try one lol

[@mattseddo94]

please make a drift kart and put this in it, would be prefect

[@gokarting1018]

I’ve seen 10k and 16hp out of a bone stock long block it on methanol to the tire of a kart

[@erickvond6825]

You know if you want to check a valve seat all you need is some DyeChem or a sharpie. Just color over the area in question and push the valve into it. Rotate it a little and see where it removed the sharpie or other marking fluid. Its easy enough to clean off with a bit of isopropyl alcohol.

[@shark11175]

Y'all are the best, so informative! Would love to see this motor on a Mini Bike!!

[@joelslone67]

These build are what I like to see

[@vaoutdoorssportsman3555]

3:39 - she said all of that! 😆

[@Mysteriousgamer78]

"To b honest i dont really no what that means" 😂😂😂 lmao love the honesty lol

[@kennethdispain1807]

Can't wait to see that one run

[@brianhanel6897]

The smart thing to do would have been to break in the.cam at lower rpms with the spring's that came With that engine 💡

[@botchman5947]

U need to do a video on the 212 ghost. I know ur videos are better and bigger. But everyone's curious about it.

[@darploin5071]

I love Isaac's petrol I/V. bottle

[@lostsocketgarage330]

Love the ducarti and all the builds, do another motorcycle engine on a gocart like a Honda 1200 that would be awesome

[@MrAPCProductions]

would be a gun video series to find one of the 32ci big iron briggs to make videos about.

[@dakotachristian7368]

If yall usr methanol make sure you put top lube in the methanol bc we have race cars that run off methanol and we've had valves get stuck

[@guyhaydu364]

im curious on how changing the rod may offset the balance of the rotating assy and you can use blue dichem to check the actual valve seat. permanent marker works also. id like to also see what kind of roller tip rockers would be avalable and what ratios could be used to cheat the cam keep in mind the push rods may need to be changed to satisfy proper length when adjusting ratios. cool stuff guys this is my favorite show. o ring heads would be really neat to play with also at some point for super high comp.

[@SwissArmyFishing]

Ya'll need to get up with Red Beards Garage. He just did a similar build with a Predator engine. Love to see a head to head competition.

[@SC2TiMeLorD]

btw offering higher res videos doesnt help much when the source is always blurry and out of focus

[@glendecuir6317]

Man I'm not getting notifications. This video says 13 hours ago, and no notification on my end found it while browsing. Long-time subscriber check all my bells and whistles, what's up. Peace out guys keep on rolling🇺🇲🇺🇲

[@Philc231]

I’m not getting notifications either . Wonder if KZbin is messin with the boys .

[@alexprzysiecki8970]

55lb springs is to much for that cam just so u know I run 36lb springs with a 292 cam and I get 9800rpms out of my 236r and even it’s not 30hp u guys are gonna be probably making 23ish hp that’s all

[@deathtrapperformanceminibi260]

This is a GPS marketing video not a build video and on a reputable dyno like Brad Hills dyno (dyno used in the small engine builders competition)this engine would be lucky to make close to 20hp and a 5+hp gain switching to methanol? Bwahahaha! The average is around 2hp the lies GPS tells just to sell parts crack me up

[@kcraig51]

You're right about not lapping valves. There needs to be a 1 degree difference between valve head and seat. This difference goes away at temperature because the valve head gets way hotter than the seat, therefore different expansion. You really need a PCV to keep the crankcase under vacuum. This reduces oil leaks and helps keep the crank motion from pushing all the oil to the sides of the case.

[@cerealkiller1638]

Go back and run some of the rigs on e85, to see how fast they really go.

[@marksmithson1414]

I just enjoy watching Isaac and Charles doing all the work. They work so well together.

[@braxtonoconnell6096]

You guys should do a mud bog go cart and make a mud bog on your property

[@bradleyharkness2537]

it’ll be nice to see a blockzilla build from a Briggs engine

[@18wheeler77]

Charles seems more confident on the camera, but here is some advice for him. Just speak louder, don’t mumble and pretend you are a host in radio.

[@jeffjankiewicz5100]

Cool little engine, what are you 3 gonna power with it? Whatever it is, it`s gonna fly. Hang on fellas, I see a sketchy ride coming.😁

[@acurarl9929]

How can you cut a valve seat an set the valve in and say it looks good. You can’t tell a single thing from setting a valve into its home. Not even a valve pro of 100 years could set valve in and decide if it’s good or not. That was purely a scratch ticket gamble. When you lap then you see the contact on valve and see contact on the seat. It’s the absolute only way possible to know a single thing. Unless you have a bench leak down tester. Just crazy you’d lap a flywheel to see everything your needing to see but then you cut new valve seats and just winged it on if it’s seating correctly. And doing it by hand I can guarantee I mean absolutely guaranteed that valve is not sealing 100% with out hand lapping it. Lapping grinds them seating surfaces in. Not a chance them seats are 100% with out lapping them. Let’s remember we cut seat by hand in your lap. Not even on a stable bench. Your legs were torcing and hands were torcing if there was a most important time to lap a valve it would be from hand citing valve seat while heads in your lap on a swivel chair. Hp build just tossed horse power in the trash over 5 min lapping job. Now have fun chasing spark plug heat rages and carb running and coil gap and timing ect in the very near future. Or just be happy with less power I guess. That valve cutter wasn’t made for that valve. Like they were not made side by side at same time and lapped for ea other. That’s why lapping is so important unless you have bench leak test on hand. An you’d only skip lapping if you used a real cutter set up. Not cutting by hand in your lap. I love you guys I’m not like dogging you guys. But I gotta call it out. This just needs to be torn down and done. Lil time and a gasket no big deal. I’d go backwards to to it with no thought into it. It must be a joke. No one told you not to. This must be a prank. Y’all know wat better then that. And you’ll nvr know the valves leak as you don’t know the engine with non leaking valves so you’ll just think the engine is running top performance but it’s not. Cause leaking valves doesn’t mean misfires ect unless super bad. But leaking valves mean hp left on the table and hp build means your trying to do opposite of that. I leaked down my stang heads on real head shop fer fun almost all had leaks and thing ripped. But period hp left on table. Was putting aftermarket heads on and was doing a leak check on brand new heads witch cheacked out great but old head leaked multi valves and I didn’t suspect that was going to be the case at all no indication. But fact is hp in the bucket rather then the engine

[@reitzy69]

Instead of running any kind of zinc additive...could always run rotella 15w40 or 5w40 diesel oil. It's loaded with high zinc

[@bigbobk1963]

IKE said "TO CLERENCE MY ROD!!!!!!!" LMAO

[@jocrp6]

Ya'll didn't want get rid of the governor gear and clean up the casting on the crank and go ahead and knife edge it to get rid of windage which = MO POWA BABY!

[@jocrp6]

Tsk,tsk,tsk,,, No bee hive valve springs? lol

[@SB-fe4gt]

I disagree on not using the one way valve for the crankcase vent! By using the one way valve, you create a vacuum below the piston therefore it has less resistance or "pumping loses". I'd be tempted to install dual one way valves from something like an older 650 twin Yamaha that had both pistons moving together so the pumping losses were substantial...you'll have the same thing turning the engine 9,000 rpm. Dyno it and see :).

[@Spirit_Lanayru]

This thing sounds girthy as hell. Making me want to drop my budget on my project truck and build my 270 swapped coleman minibike.

[@dandil]

@26:10 isn't the upper side of your piston the combustion chamber? also isn't the crankcase ALREADY connected to the valve cover through the holes that the push rods go through? like I get that pumping losses are a thing, but don't you just need to vent the crank for that?

[@etscrapping9923]

I like to see yall get a hold of the 212 ghost. See your thoughts on it.

[@muddinco7289]

Okay carsandcameras on the valve lapping compound on the flywheel your half way right if your buying a aftermarket flywheel it could be off a little bit and the tappers not match because sometimes they use a different machine in the factorys or somthing i dont know but what i do know that you do that only because not all flywheels arent perfect for each motor and it could cause unstable movement and destroy your internals or break your flywheel off

[@Jesse_Jessie_James]

If u have never expierenced with methanol before. Then u better becareful. My drag car uses methanol fuel. I use it cause u don't need a radiator if ur running methanol fuel. Cause the motor is always cool. I use a radiator when i use regular gas when i am cruising around town.

[@Tampaboys]

285 that's it come on guys y'all got more than that

[@edmondpecotjr.8888]

a delicious tilerson wait how much butter

[@RAWRMotorsports]

Checkout viperizer for custom methanol carburetors !!

[@liftshootblaze42069]

Little bit of grease on the tip of a pocket screwdriver makes installing the keepers a breeze

[@fatnfurious9171]

I like how the bearing clearance was never measured. I would be worried about all the money u spent and then just slap er together. Best of luck to u guys

[@dragonrider6875]

Ok, it's time to get off the floor. You need to build a engine build and test stand to run you motors on. It should have a engine oil catch pan or bucket.

[@ol-man-duffyj688]

Why were you told NOT to lap the valves? I got a race head from GPS & was a bit surprised to see the valves were not lapped. I could blow air passed them until I lapped and I just don’t get it. 🤔

[@bobadam7021]

You guys should look into check valves and exhaust scavenging for PCV.. The exhaust gasses vacuum out the crank case gasses and it's good for more horsepower. 5-8 hp on a 355 oval track motor.

[@bryduhbikeguy]

I'd like to suggest the Yard Dart as the test platform.You guys built it for that purpose right?Then you can semi-permanent mount it on anything.

[@EJ-74]

I'd say the bottom end is the meat and the top is the potatoes 🤔 🤣

[@jacobthornock317]

I'm pretty sure lapping the valves is only necessary if you are unable to cut a new 3 angle valve job.

[@Lynn-ww7lh]

Love the videos man can't wait for more bangers

[@mrchips303]

Type 1 Eyemomiter says, yup, 10 thou.

[@bedspread6224]

you can use diesel oil for the break-in ... it has zinc and other vitamins the engine likes .....

[@mikerammelt2420]

Guys, you should of lapped the valves after cutting the seats then checked them with Blue. Why didn't you polish the combustion chamber. Did you match port them to the gaskets. You would of been better off to knock the guides out then do your port work.

[@pollyg562]

at the start were they talk about the flywheel and axel then making the tip not shiny so it doesn't slip, if anyone else told me that id call BS, but if Isaac and Charles say its a thing as far as I'm concerned 'it a real thing"

[@Canadian_Craftsman]

Thanks for showing the bearing install Arc billet rods recommend NOT to use Plastigauge for install!!😑

[@danielcassidy2275]

Get some fire proof clothes when using methanol because you can’t see it burning

[@rfrazier113]

Is there a way to remove the governor and install a safe flywheel that will allow you to charge or run lights? I have a Coleman B200X that we want to upgrade, remove the governor, but still keep lights for trail riding without the need of a stand alone battery. Charging coils and billet flywheel or equivalent. How to Video Please.

[@S.park.y]

Ike should be a half hammer. Cause he’s holding it half way up the handle

[@fatnfurious9171]

He can tell 1 thou by wiggling the crank. Thata boy