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:

Billet rod: options available, call for your specific application
Chromoly pushrods: call for availability + length

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.

[dirtyd]

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.

[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.

[GooseGosselin]

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

[spyder]

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

[thebot]

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

[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

[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!

[countrylife]

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

[Nocturnal]

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

[marksmithson]

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

[brushybillroberts]

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.

[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!

[jason]

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

[budddove]

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.

[sonnybrooks]

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.

[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!!!

[zacharywarren]

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

[miguelarmando]

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

[erickvond]

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.