5hp Briggs 7000RPM

[solomon]

Okay, so for now im gonna ride around stock W/ out governor. I am going to rebuild my generator and sell it for $200. I want this kart to go 7000 RPM. I plan on using
ARC BILLET ROD $65
DYNO 92-3 Cam $35
COMP CAMS Dual VALVES SPRINGS KIT $40
3 STAGE Header $20
K&N Air Filter $15

So that puts me at $175?

Anything I missed? I think i will keep my stock flywheel for the torque. I'm using a dual bushing block btw. I will get the head milled in a few weeks, how much should be taken off? How many RPM can i push outta that motor like that? Thanks

 

[r_chez_08]

I doubt stock flywheel will hold up at 7000 rpm

 

[Russ2251]

I doubt stock flywheel will hold up at 7000 rpm

Will hold at 10k or higher. Much more than engine will ever produce.

 

[sideways]

Okay, so for now im gonna ride around stock W/ out governor. I am going to rebuild my generator and sell it for $200. I want this kart to go 7000 RPM. I plan on using
ARC BILLET ROD $65
DYNO 92-3 Cam $35
COMP CAMS Dual VALVES SPRINGS KIT $40
3 STAGE Header $20
K&N Air Filter $15

So that puts me at $175?

Anything I missed? I think i will keep my stock flywheel for the torque. I'm using a dual bushing block btw. I will get the head milled in a few weeks, how much should be taken off? How many RPM can i push outta that motor like that? Thanks

$200 could buy you a motorbike engine, just my 2c.

Hayden

 

[Rotore]

or a kohler

 

[KieranM]

while you are at it you may as well changes the piston rings if you have motor for awhile.

 

[r_chez_08]

I doubt stock flywheel will hold up at 7000 rpm

Will hold at 10k or higher. Much more than engine will ever produce.

Does that apply to all industrial engines or just Briggs?

 

[Kaptain Krunch]

Motorcycle engine.

Chez, if the flywheel is torqued to spec, and unmodified/undamaged, it should be fine far past 7k. Of course there are exceptions, such as manufacturing defects, or a loose coil which could drop into the flywheel.

 

[r_chez_08]

then what is the point of billet flywheels?

 

[Kaptain Krunch]

Engine will wind out faster, and they technically are "safer".

 

[Russ2251]

then what is the point of billet flywheels?

Lines pockets.
Wanna buy a bridge???

 

[EagleTalons]

I think solomon wants to build up an engine. Or use it in a minibike.

 

[solomon]

I would love to build up an engine. I don't think a bike engine is really suitable on a 1 Wheel Drive Kart anyhow lol. Thats why i decided to build one up. Since i thik i might be building this over time, i figured the first parts i need, to pump some power are going to be springs and a rod right? That way i don't get valve lift and i can not worry about the rod going out. And since im not doing a high lift cam should i have the lifter bore welded? I just dont know anyone with a tig

 

[Kenny_McCormic]

Personally I would rather not trust my balls to a 20+ year old flywheel that I don't know the history of.

 

[solomon]

I would agree, but i need the torque, and i have a few spares if this 1 fails, only use the spares if the 1st one exploding doesn't injure me lol. Do guys think a dual bushing block will be fine? Thier are no bearings

 

[Kaptain Krunch]

at 7 grand you'll be working those bushings thats for sure. If you dont know the history of the fly, maybe a scatter shield would be a good idea. Some 3/8" plate between you and the fly wouldnt hurt.

 

[solomon]

Defiantly a great idea, i might use another flywheel that i know was never mistreated, the one i pulled has cracks already So i will be using one i know works great.