tcgs13
Redneck
does anyone know where i could get aftermarket parts for a lct powerhorse 208cc engine (nothing internal just basic things to give it a boost.) its on a go kart. thanks for the help
clone parts????
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r_chez_08
Should be in the shop...
Affordablegokarts.com,
Nrracing.com
Arcracing.com
Nrracing.com
Arcracing.com
tcgs13
Redneck
do you know whether or not it is safe for a 6.5hp engine to run a header with no muffler i dont want to screw up the back pressure or anything 
Doc Sprocket
*********
Tcgs13- you should totally ignore my brain cramps. FIXED! 
That said- many, MANY people run open headers with no problems. At absolute worst, you may need to alter your carb jetting- but test first.
BTW- BACK PRESSURE IS BAD!!!!!!!
Too many people confuse "back pressure" with the concept of cylinder scavenging- two different animals. Back pressure is bad! The name of the game is flow- your engine is like you- the better you can breathe, the better you can perform. Back pressure is BAD! (Did I mention that?)
That said- many, MANY people run open headers with no problems. At absolute worst, you may need to alter your carb jetting- but test first.
BTW- BACK PRESSURE IS BAD!!!!!!!
Too many people confuse "back pressure" with the concept of cylinder scavenging- two different animals. Back pressure is bad! The name of the game is flow- your engine is like you- the better you can breathe, the better you can perform. Back pressure is BAD! (Did I mention that?)
r_chez_08
Should be in the shop...
Toystory- what are you on about, it's his thread!
There is no problem with a straight pipe except noise. However, I have heard that some people gain a bit of torque using the Briggs style can muffler.
There is talk of bending valves if you run no header because they will cool down quicker. I am unsure how much truth there is in this.
There is no problem with a straight pipe except noise. However, I have heard that some people gain a bit of torque using the Briggs style can muffler.
There is talk of bending valves if you run no header because they will cool down quicker. I am unsure how much truth there is in this.
tcgs13
Redneck
thanks for the info i really appreciate it as im just getting started with this stuff
(BTW i did make this thread)
(BTW i did make this thread)
Doc Sprocket
*********
HAHAHA! Sorry- My Bad, I apologize!!! Sometimes I flip through the threads so fast, I lose myself! Please accept my apologies, and a stale Snickers bar.
(Jeezus, I feel like a retread!)
(Jeezus, I feel like a retread!)
tcgs13
Redneck
no big deal...
also what would be better to do first k&n air filter or header because i have limited cash
so i can only get 1.
also what would be better to do first k&n air filter or header because i have limited cash
so i can only get 1.
r_chez_08
Should be in the shop...
What's a retread? Aha I will leave you alone now.
I would go for the filter first.
You can always make an exhaust if you have a welder. Just cut the flange from your old exhaust (or make one), then weld some pipe approx 3/4" i/d to the flange. It wants to be about a foot long.
As far as a filter goes, you can order some k+n style one from eBay for about $10. They do the job. You will need to buy a filter adapter though. Another $10 from NR.
Don't forget you may need to rejet after the filter mod
I would go for the filter first.
You can always make an exhaust if you have a welder. Just cut the flange from your old exhaust (or make one), then weld some pipe approx 3/4" i/d to the flange. It wants to be about a foot long.
As far as a filter goes, you can order some k+n style one from eBay for about $10. They do the job. You will need to buy a filter adapter though. Another $10 from NR.
Don't forget you may need to rejet after the filter mod
Doc Sprocket
*********
It's an inside joke at my house- It's like "retard", but dumbed down for the kids- with a vague reference to when re-treaded truck tires fail. Hence, Retread.
Doc Sprocket
*********
no big deal...
also what would be better to do first k&n air filter or header because i have limited cash
Either or, really. You will do no harm in any order. Like I said, at absolute worst you may need to richen your mixture a bit, but the difference will be minimal. Can you weld? You could make your own header, and spend the money on the filter- getting BOTH!
r_chez_08
Should be in the shop...
Ah ok, makes sense.
tcgs13
Redneck
im 14, so im not the best at welding though i can do it, also what jet should i use the engine is a 208cc lct clone.
Doc Sprocket
*********
Don't mess with your jetting unless you know you have to. Only if reading your spark plug indicates a lean condition should you do it.
And making a straight pipe is easy, I bet you can do it!
And making a straight pipe is easy, I bet you can do it!
tcgs13
Redneck
well in that case i hope i dont have to rejet it i can rebuild a 460 but i HATE carbourators they are too small and its hard to get to the parts you need.
Doc Sprocket
*********
Honestly, it's a piece of cake. The jet's easy to get at, and a cinch to replace. You don't have to disassemble the whole carb, just take the float bowl off. Reach right up the middle with a small flathead screwdriver and unscrew it. Cakewalk.
As for the pipe, your easiest option is probably to cut the flange off the factory muffler and save it. Nip out to your local Home Depot and get some 3/4" EMT (electrical conduit). Get a pre-bent 90* elbow, and a straight section. Cut the 90* to the actual angle that will serve you best, weld the flange on, and a section of straight pipe. If you know an electrician, you can probably get this stuff free.
As for the pipe, your easiest option is probably to cut the flange off the factory muffler and save it. Nip out to your local Home Depot and get some 3/4" EMT (electrical conduit). Get a pre-bent 90* elbow, and a straight section. Cut the 90* to the actual angle that will serve you best, weld the flange on, and a section of straight pipe. If you know an electrician, you can probably get this stuff free.
tcgs13
Redneck
awesome thanks so much for the tips.
Doc Sprocket
*********
No Problem!
mckutzy
Well-known member
OP- if you have a construction site near you, ask and they might have a dumpster nearby that you can raid for some electrical scraps.
On my bike I made an exhaust pipe out of EMT scraps I found, there was even a 90* bend.
If you weld it, make sure you grind off the galv about an inch to each connecting piece. the fumes will make you really sick if you get a good dose. It can be done just have good ventilation.
On my bike I made an exhaust pipe out of EMT scraps I found, there was even a 90* bend.
If you weld it, make sure you grind off the galv about an inch to each connecting piece. the fumes will make you really sick if you get a good dose. It can be done just have good ventilation.
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