Paul your a freaking genius!! I thought I understood valve trains.. increasing power, after listening to Paul explain how to achieve Rpm’s by adjusting/shimming valves I was able to increase power from bottom end through mid and increased Rpm’s
I love these videos it gives me hope I can keep running open flatheads at 9,800 rpm or more for 30 laps for 6 races ...... Or have big power 12,000 rpm for 30 laps one race haha
I agree with the bigger dia. Vent tubes and connect to a large 1/2" or so tube running up as high as practical for minibike use with just a filter on end - no need for catch can BS. I hope your head nuts are loose because the look to have about 1/2 engagement
Paul where you get a .500 cam!?!? My man said he has .650 of lift and I can see those are 1.3 ratio RR’s. Bad ass video, thanks for sharing. I’d love to have more of your teachings like this. Talk to us about your coil pack and are you the OEM for the Venom RRs? Definitely love the way you think and the details you get into. That vent tube discussion on diameter had me 🤯!!! So true and would have never thought of that detail. Anyway, big Ol bro hugs coming your way, happy turkey 🦃 day and thanks for giving us this gem of a video. 👏🏼
@@captainspeedracing9564that makes sense. So I did the math, the highest ratio rocker I’ve found is a 1.5 so to achieve .500 lift you need a .333 lift cam. Biggest one I’ve seen was a .308 lift but I’m sure someone custom builds lobe profiles for PK. I’m just amazed there is clearance for that kind of lift and without coil bind. He’s got to be at the absolute edge of everything. Including cutting eyebrows in the piston. Definitely not using hemi heads. lol. 😊
i have a pull start but do you ever get kickback when you go to start it mine will sometimes start but i’m having a hard time starting it idk what’s wrong with it any tips ?
This build is pretty average around here lol, no welded block or deck extension or crazy big sleeve or crazy huge porting for EFI or flanged welded manifold stuff but I do see a lot of the upper end of race engines here. As far as 670’s go I have only built heads for them so far. A few sets have come thru every couple months but never been contracted to do a 670 full build so far. I am really a Gx series specialist and clone of the gx200 type engines like tillotson and predators
Hey guys really need some help here iv got a non hemi 212 mod 2 cam, arc rod stock length, arc flywheel ,stock piston, .010 head gasket, 5.200 chromoly push rods, 1.3 ratio stamped rocker arms, ec billet retainers and 26lb valve springs pk hot coil with the jegs ground strap, vm22 carburetor the engine seems to have lost all low end power compared to the stock carb iv tuned it and it runs strong all the way to 8k but feels less torque than on the stock carb on take off so basically what im asking is am i sacrificing torque for hp or should i keep tuning the vm i am currently run a 130 main and the needle set one notch down to raise the needle that helped alot but i feel as if it now needs more compression to get back that off the line power. Paul iv been watch your videos for over a year now and they have so much information they are litterly priceless keep up the great work and i hope to get a head done soon my dream head is a 12cc welded with 27 25 valves ported 11:1 ish 10:1 just to wake it up even more without really putting to much on the piston or block
I think your cam choice is wrong and you need bigger carb , 24-26 mm carb. But I'm not Paul, what ever he says is right. I think 8 k is alot of rpm, is that static or under load. CM3 cam for torque down low ,24 mm flat slide carb or 26 vm. GOOD LUCK. Do you really get to 8k on track,, run. I know PAUL Can get you to 9 k plus the moon if you really got the need, however you may find that you only get round 6-7 k before letting off for braking , curve etc. I 'd try a trinity package from Paul's Kart.
Mod 2 cam is terrible. Get a 275 or 290 cam and get a bigger carb the vm22 is a good stock replacement and a stage 1 build but after that you Need a bigger carb like a 28mm
@@wylieruneyjr my old set up only turned 7 thats why i swapped to 26lb valve springs from the 18 and a mod 2 cam with 1.3 ratio rockers is 292 intake and 300 exhaust
@@dabtech7456 you will sacrifice to much low end torque going for a bigger carb rn especially on stockish compression flow gives you hp compression torque
Paul your a freaking genius!! I thought I understood valve trains.. increasing power, after listening to Paul explain how to achieve Rpm’s by adjusting/shimming valves
I was able to increase power from bottom end through mid and increased Rpm’s
Glad to help man. Keep building and pushing the power limits. Having fun is so important. Thanks for watching man. 😎👍
Good stuff man! Merry Christmas to you and the family.
I wanna hear some of these bad boys running!
Good luck...
Like always. Appreciate you man. I don’t have a ton of money for teaching. My sons are made to watch your videos. Lol
Thanks man
I love these videos it gives me hope I can keep running open flatheads at 9,800 rpm or more for 30 laps for 6 races ...... Or have big power 12,000 rpm for 30 laps one race haha
I agree with the bigger dia. Vent tubes and connect to a large 1/2" or so tube running up as high as practical for minibike use with just a filter on end - no need for catch can BS. I hope your head nuts are loose because the look to have about 1/2 engagement
👍✌
what does the ground wire do for you?
Paul where you get a .500 cam!?!? My man said he has .650 of lift and I can see those are 1.3 ratio RR’s. Bad ass video, thanks for sharing. I’d love to have more of your teachings like this. Talk to us about your coil pack and are you the OEM for the Venom RRs? Definitely love the way you think and the details you get into. That vent tube discussion on diameter had me 🤯!!! So true and would have never thought of that detail. Anyway, big Ol bro hugs coming your way, happy turkey 🦃 day and thanks for giving us this gem of a video. 👏🏼
I'm not aware of any 500 lift camshafts. Most people achieve their desired valve lift with the higher ratio rockers.
@@captainspeedracing9564that makes sense. So I did the math, the highest ratio rocker I’ve found is a 1.5 so to achieve .500 lift you need a .333 lift cam. Biggest one I’ve seen was a .308 lift but I’m sure someone custom builds lobe profiles for PK. I’m just amazed there is clearance for that kind of lift and without coil bind. He’s got to be at the absolute edge of everything. Including cutting eyebrows in the piston.
Definitely not using hemi heads. lol. 😊
@@ol-man-duffyj688look up smalleneginecams. On the in
i have a pull start but do you ever get kickback when you go to start it mine will sometimes start but i’m having a hard time starting it idk what’s wrong with it any tips ?
Could be lash setting or timing or your not pulling it fast enough.
Hey Paul do you have a video of what your 212 sounds like that you’re selling thank you
I recently started not deleting tags on my Facebook there might be one running in there
@@paulskartslifan4206 OK thanks
Ever done a build that extensive on the 670 v-twin?
This build is pretty average around here lol, no welded block or deck extension or crazy big sleeve or crazy huge porting for EFI or flanged welded manifold stuff but I do see a lot of the upper end of race engines here. As far as 670’s go I have only built heads for them so far. A few sets have come thru every couple months but never been contracted to do a 670 full build so far. I am really a Gx series specialist and clone of the gx200 type engines like tillotson and predators
Hey guys really need some help here iv got a non hemi 212 mod 2 cam, arc rod stock length, arc flywheel ,stock piston, .010 head gasket, 5.200 chromoly push rods, 1.3 ratio stamped rocker arms, ec billet retainers and 26lb valve springs pk hot coil with the jegs ground strap, vm22 carburetor the engine seems to have lost all low end power compared to the stock carb iv tuned it and it runs strong all the way to 8k but feels less torque than on the stock carb on take off so basically what im asking is am i sacrificing torque for hp or should i keep tuning the vm i am currently run a 130 main and the needle set one notch down to raise the needle that helped alot but i feel as if it now needs more compression to get back that off the line power. Paul iv been watch your videos for over a year now and they have so much information they are litterly priceless keep up the great work and i hope to get a head done soon my dream head is a 12cc welded with 27 25 valves ported 11:1 ish 10:1 just to wake it up even more without really putting to much on the piston or block
I think your cam choice is wrong and you need bigger carb , 24-26 mm carb. But I'm not Paul, what ever he says is right. I think 8 k is alot of rpm, is that static or under load. CM3 cam for torque down low ,24 mm flat slide carb or 26 vm. GOOD LUCK. Do you really get to 8k on track,, run. I know PAUL Can get you to 9 k plus the moon if you really got the need, however you may find that you only get round 6-7 k before letting off for braking , curve etc. I 'd try a trinity package from Paul's Kart.
Mod 2 cam is terrible. Get a 275 or 290 cam and get a bigger carb the vm22 is a good stock replacement and a stage 1 build but after that you Need a bigger carb like a 28mm
@@wylieruneyjr yes the 212 really turns to 8k the under load i have a tach on my bike so i could keep a eye on it
@@wylieruneyjr my old set up only turned 7 thats why i swapped to 26lb valve springs from the 18 and a mod 2 cam with 1.3 ratio rockers is 292 intake and 300 exhaust
@@dabtech7456 you will sacrifice to much low end torque going for a bigger carb rn especially on stockish compression flow gives you hp compression torque
I'm dizzy now.
You need to get a camera tripod or something.I start to get dizzy watching the video.
I want one that straps to my forehead 🤣