My First Kart: Nitrous + 358cc = PAIN #2
- Thread starter Kenny_McCormic
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jr dragster T
New member
Yeah I'm pretty good at spanking your *** in a race in my kart!
Ibnzmonkey
Keep Austin Weird
Cant wait to get the rest of my parts tommorrow, im so stoked! Ill be driving in no time! BTW, i just ordered a 2.5lb Nitrous bottle off ebay for $45. Yes!
jr dragster T
New member
Nitrous is SOOO useless with your setup. That motor will blow in no time! And if your going all out with nitrous why would you put a muffler on it? It's like putting air filters on a top fuel dragster!
Ibnzmonkey
Keep Austin Weird
thanks for the dash of enthusiasm. I would like to think this is DIY and not www.letsbashpeoplesideas.com. I made this build thread to log my progress and to show people what im making. If this engine does blow, i have a Kohler CH25 V-Twin i purchased from a local that i will use.
The nitrous jet i am using is from the kits they sell on ebay. i believe its a .015 orifice or something like that. its really tiny. I would just have to modify the carb to add a little more fuel on the top end to prevent a lean condition.
jr dragster T
New member
Buddy...I wasnt trying to let you down I was just saying that the nitrous is just going to spray everywhere. Plus your motor wont like it very much. But I'm sure it will add quite a bit more power for a short ammount of time before she blow's. I was just letting you know incase you wherent aware of the risk's. EDIT Now that I know that your using a small jet I think it will be alright. I thought you where just going to let the entire shot right in.
Ibnzmonkey
Keep Austin Weird
Update, box of parts came in today. i have everything mocked up. Ill post pics tomorrow. Also, i just got the cylinder head back from the local machinist, i had it milled .016" to bump the compression a bit and hopefully get some more power. It will be running 93 Oct. or maybe ill throw a dash of my C16 in there to keep it from pinging if that happens.
Since i found out that an aftermarket piston and rod combo would cost me over $400 i was like, no way jose. so i sent the stock piston and rod to a local performance shop called xXx motorsports. Theyre going to shot peen the Rod/Piston and add a thermal coating to the piston skirt. All for the sweet price of $120. Ill post pics when they come back next week.
Since i found out that an aftermarket piston and rod combo would cost me over $400 i was like, no way jose. so i sent the stock piston and rod to a local performance shop called xXx motorsports. Theyre going to shot peen the Rod/Piston and add a thermal coating to the piston skirt. All for the sweet price of $120. Ill post pics when they come back next week.
jr dragster T
New member
How much was the milling of the head? And was xXx motorsport's a joke? Also you might want to lap the valve's so it can hold it's raised compression ratio better. Couldnt hurt to do some light head and port work either.
Ibnzmonkey
Keep Austin Weird
It only cost me $35. and xXx motorsports is a speed shop here in Pensacola. I might try porting the head a little as well like you stated while i wait for more parts.
jr dragster T
New member
Just be carefull when porting the head and the port's. Stay away from gasket surfaces and seats.
Ibnzmonkey
Keep Austin Weird
A few Update Shots.
BradenM
Etre Et Durer.
Very nice, keep it up mate. That thing will fly.
Ibnzmonkey
Keep Austin Weird
hopefully, im kind of regretting not getting a Lifan 150cc with 5 gears. This is a 358cc, so hopefully it has more torque than a lifan.
jr dragster T
New member
Wont have as much power as a bike engine.
Ibnzmonkey
Keep Austin Weird
The lifan 150cc has 12HP. My Tec has 11 HP in Stock configuration. With my Mods i think it will be at a conservative 15-17 HP.
jr dragster T
New member
So in all what mod's do you have? And it's not the same as a 5 speed speed bike engine.
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