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- เผยแพร่เมื่อ 16 ก.ค. 2021
- Predator 212 Cylinder head comparison/Hemi vs Predator 212 vs GX 160
Tested a Hemi predator 212 for top speed and zero to thirty times,and then swapped the head with a GX 160 head to see if the head swap would make any difference in performance. And then did the same with a non-Hemi head. Used a Coleman CC100x Predator swapped minibike for the test.
All three heads had 22lb valve springs installed for the test.
Music -Elevate - LiQWYD _ Background Music No Copyright (Chill)-BHncmtRSLCU
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Parts used -
Predator 212 head
GX 160 head - www.amazon.com...
Predator Hemi-head
*********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.
ALL BLACK66 CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
You have the best videos! Very informative. Thanks for your great work bud!!
Thanks!
Going back and watching this again as I'm considering what I want for my next engine. It's comes down to the larger valves in the Hemi outperforming the other two heads with Higher compression ratios. But I can't help but think it's still going to be more cost effective to use a Lifan 200cc motorbike engine, and do a little more work on linkages and wiring, (especially as I have to order parts from the USA for the Stationary Clones & the shipping cost is more than the parts, and the exchange rate means I'll pay 4 times what people in the USA get to pay) The Lifan 200cc Motorbike engine is 16hp and $1055 with Carb, loom and exhaust/header, the cost of building an equivalent 212cc is well over $2K)
Yeah, sounds like the Lifan is the way to go. And it is already together. No waisting time on a build.
Buy far the best TH-cam videos on mini bikes .keep up the great informative work.
Thanks! Thanks for watching the videos!
Thanks for doing all this testing for us!
No Problem! It's kind of fun tearing these things apart.
Great comparison video. I’m about to do the 14cc GX160 head on my non-hemi 212. Hope I get the same or better results. Thanks for sharing
Thanks! I really like the GX160 head. I have them on a few engines. The extra compression seems to make them snappy.
I love your comparisons I've tried the fcr carburetor on my 212 with ported head and Cam and compression and I've got the insane top end still fighting with the lien on top and rich on the bottom maybe you can show me how to do it if your friend to fcr carburetor I'm running a 39 but it doesn't seem to matter how big the carburetor is it takes it all on top end
Nice video, great comparisons. Can't wait to see what's next!
Awesome comparison
Thanks! I have another one coming out on Wednesday.
A lot of people balk on the Highsan engine the 195cc and swap the predator 212 engine. The main difference I think is the crank shaft output thickness. You have to get the adaptor with the CVT with the 196 engine. This video is very interesting showing the various specs and time trials. Fatbuddycat does the same thing. If you want more output just bore out the exhaust port and use a thicker head gasket.
Can't wait to see you do Sprocket test I got a APC mini Harley with a predator 212cc Hemi 10t clutch with Cateye pocket rocket rear wheel assembly,40t sprocket 420 chain
Nice!! That is a nice bike. Ill do it pretty soon.
Gx160 with 22s is a great combination with a stock or mild cam.
That's the combo on the blue bike. I have a 252 rattlesnake cam with 1.2 ratio rockers with the GX160 head. That little bike moves out.
@@Black66 right on!
I don't know why everyone thinks 22lb. springs are so great myself I go with the 26lb. with mod-2 cam with one to two rockers in my hemi head predators with 26mm Mikuni carburetor ported n polished,,, it's a beast with a stage 3 header of course Billet rod with Billet flywheel replacing plug wire with 8 mm. with a heavier ground strap...
Ooooo......what about a gx160 head with ratio rockers for the best of both worlds! I heard they are boss with bigger valves too.
My little blue bike has ratio rockers and a GX160 head with a little port work. That little bike moves out! I need the bigger valves like a Pauls's karts head.
Nice
212 non hemi and clone heads have bigger ports than the stock 212 hemi and i did the same but using a non hemi head on my built hemi block😁👍
I liked the NON-Hemi head the best on this test. The GX 160. It seemed more snappy to me.
Nice!
The Hemi is good but the GX160 is snappy.
Good stuff man you still did not email me waiting lol 😂 nice job
Thanks! lol
Did you use same clutch for predator 212 ? On 100cx ?
@@Mason-to9fv No, I used a 3/4 shaft clutch . The Coleman came with a 5/8 clutch .
If there's minor differences in those heads I'm sure u could make one good for torque with the current cam and one good for high rpm with a bigger cam
Ya, for sure
I have 2 carts and a minibike. All 3 stage one hemi Gov removed
Yes! Hemi is a really good head. I want to do the same test with a bigger cam. I bet the Hemi will really do good with those bigger valves.
Would the tillotson 212 head be compatible with the non hemi 212 predator? And would there be a benefit to using the tillotson pushrods on the non hemi block? Thx
Yes, I did exactly that in this video. th-cam.com/video/wHIKyVU4oxw/w-d-xo.html I don't see much benefit unless they are Chrome moly pushrods.
I bought a mini bike with a stock Honda gx200 on it that needs a new head, would I be better off getting a 18cc head kit or 14cc head kit for it? It’s a completely stock motor. Looking to just bolt it on and go and not do any extra custom work to it. Which would you recommend for the least amount of work or custom work? Thanks in advance!! Love the channel.
Where can I buy that coil setup? Thank you
I installed my own wire on this coil.
Question,my clutch keep making noises,and if my chain is to small will is make it faster or slower
Other questions, so I install my carburetor mikuni,took out the gov out but left the gov arm in and I cut of the oil sensor out, and I have a 12tooth clutch with a 75toorh sprocket, what speed can I reach?!
I would lube the bushing in the clutch? They will make noise if they are dry.
@@rico7844 It really depends on the weight of the rider, tire height etc. But if you're talking about a Coleman cc100x I think mine hit around 50 with that combo. Mine did have a cam. There is only one way to find out.
@@Black66 and what special oil I need to use for my clutch
@@rico7844 drip a little motor oil on that bushing. Or even WD 40 if don't have anything else.
That GX160 head probably bumps the compression to over 10:1. What gas do you use?
standard 91/92 octane
yo it’s that’s stock engine where you get the air filter from?
No, not the stock engine. Here is the link for the filter www.ebay.com/itm/143362678851
My apologies