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my father in law use to race karts out at manzi back in the day (nows its a crane storage yard)..... dont know how far back but i imagine back in the 70's at the latest..... jack andrews was his name. wonder if any of u guys knew him. another funny thing..... i just ported a clone head a few...

**** thats best looking TB ive ever seen....what engine do u have in it??? mike

heres a good example of what my all out high rpm race port looks like on a gm ld9 exhaust port compared to stock, big in all directions but down..... for big power in the higher rpms.... mike

i rarely lower the floors on any given head. i lowered the floors on the inlet of the intake port and the outlet of the exhaust port on the clone head just enough to even them out and no more. i can only assume u say u would see this on a high revver because it looks as though hogged the ports...

im a detroit diesel engine tech so i get all my tooling through my tool guys. cornwell, matco, mac or snap on. heres a set that would be good for a dremel... just remember use plenty of wd40 or some other lube. i dip mine after every minute or so of extensive cutting. if its just trimming or...

yes but u will need to find a cartridge roll anvil thats 1/8" because i believe thats what most chucks on them are. all my tooling consists of pneumatic die grinders with 1/4" chucks. mike

thats a pretty sick little porting kit at the top..... never see a setup that small. but thats gotta be specially made for doing just that sort of thing, hence the price tag on it. yes flow benching is what ive used...... but flow benching doesn't tell u all, it just tells u ur going in the...

the good thing about tig welding aluminum is if u u cant clean the area to be welded very well u can always adjust the a/c balance for more cleaning which will leave a wider haz trail but the beads will look good. the same goes the other way around, if its super clean u can back the cleaning...

its funny how it all looks like crap when ur under construction and u think.... "man its never gonna look good" and then ur done and u see the final product and ur like " wow it turned out good!" i wanted a tig for one reason back in the day..... i wanted to build my own aluminum sheet metal...

and heres some from a more modern 4 valve h22a honda head.... intake....

heres some more of the dart head pictured above... mike

nothing special, basic porting supplies is all it is. carbides for material removal and catridge rolls for clean up. i use to use flap wheels and cross buffs but now ive got it dial in without the use of those tools. now theres different shape carbides that i use depending on what kind of room i...

lol thanks..... funny thing is i know quite a few people that are better then me..... if i did this full time i could probably get there in no time but i only do this a few times a month or so. mike

if ur referring to me im sorry to say i can not help with the mig welding aluminum questions as i do not do it. ive got a tig welder and am self taught. i only say that because if i had some schooling in welding (stick, tig, mig) i may be able to help a little bit. as for making the frame out...

who me? ive done some v8 stuff.... mike

looks just like my first go kart i got when i was 12. mike

thank u sir..... practice and time is all there is to it. mike

i too have a Chinese pit bike (its a tall frame one) but uses the 12" front tire and 10" rear. its a blast and its only a 49cc.... it gets up and goes rather quickly with me on it with a top speed of 37mph and i weight 260lbs. i can only assume a 125 will be even better.... and i vote the 4...

i vote to sticky it....... never had anything sticked before :p mike

yes sir, ive decided to hold out until i can get a raptor 700 engine. mike