60MPH (minimum) lawn tractor.

I got a Briggs and Stratton Vanguard Charlotte 660 racing engine, making 30hp at 5200 rpm. It's got a rev limmiter, oil pressure gauge and oil temp gauge stock for the motor, electric start, horizontal shaft. This thing is not a muddin tractor, its a full out street machine. This motor pushes a 800lbs car around a 1/3 mile track at about 150kph, I'm going to make a tractor do that speed.. Going to have stock law tractor tires, balanced and front end work to make the steering tight. Hydro rear disk breaks and a 12 tooth clutch, and 68 tooth on the axle... I wanna be able to get through the subdivisions in a hurry, it will be straight headers into a stupid fart can I'm going to cut off the nearest shitvic. I'm posting this here to see in anyone would be interested in watching youtube videos, or just building threads.

Sound like a cool build.
I would do videos.

I wanna see it.

This one is my Drag racing mower. 63.7 GPS 1/4 mile

24Hp Briggs Twin, 6 inch front pulley, 3.5 rear at the transaxle, no reverse. (Prevents internal chain break,)

Kel wrote:

24Hp Briggs Twin, 6 inch front pulley, 3.5 rear at the transaxle, no reverse. (Prevents internal chain break,)

Sweet!

Nice cant wait to see this

i like the trailer tires for the rear, atleast they wont wear out quick and are fairly cheap to replace.

For the reverse chain breakage, (in peerless 820)you can replace the stock #41 with a #40, which is almost twice the strength. Same pitch and roller dia, fits perfect. Reverse isn't too important in a road machine, but for a trail machine it's needed.

Check the front axle for camber, caster, and toe. I've had good luck with 0 toe, -5 to -10 caster, and 0 camber. Some stock axles have massive camber in them, and get unstable at speeds above 20 mph. We are at 45mph, and can drive no hands at that speed.

Those small front tires are going to be really spinning at 60mph. They make some decent high speed bearings for the 1-3/8 bore.

Looks like a neat build, pretty clean looking.

Thanks guys, this will be the 3rd year running it.

I'd have to disagree with the description of #41 and #40 chain. They may look the same but are different. I don't use the reverse chain during drag racing but yes off road you can for sure.
With this application it cuts down on heat and internal drag and vibration. But the specs on each type of chain is:
The specs on both chains are slightly different....
#41 is:
1/4" wide
.306 roller diameter
rivet end to centerline distance .313
connecting end to centerline distance .266

#40 chain is :
5/16" wide
.312 roller diameter
rivet end to centerline distance .392
connecting end to centerline distance .325

No thanks, I'll keep my hands on the steering wheel at 45mph....lol..

Yes, I used bearings and high temp grease for the front tires.

Thanks Stretch...more build are on the way.

Kel

Hence the numbers #40 and #41 lol

Kel wrote:

Thanks guys, this will be the 3rd year running it.

I'd have to disagree with the description of #41 and #40 chain. They may look the same but are different. I don't use the reverse chain during drag racing but yes off road you can for sure.
With this application it cuts down on heat and internal drag and vibration. But the specs on each type of chain is:
The specs on both chains are slightly different....
#41 is:
1/4" wide
.306 roller diameter
rivet end to centerline distance .313
connecting end to centerline distance .266

#40 chain is :
5/16" wide
.312 roller diameter
rivet end to centerline distance .392
connecting end to centerline distance .325

No thanks, I'll keep my hands on the steering wheel at 45mph....lol..

Yes, I used bearings and high temp grease for the front tires.

Thanks Stretch...more build are on the way.

Kel

yeah , im not gonna let go of it eather, lol

I would do videos and build awesome tractors.

30hp100mph wrote:

I got a Briggs and Stratton Vanguard Charlotte 660 racing engine, making 30hp at 5200 rpm. It's got a rev limmiter, oil pressure gauge and oil temp gauge stock for the motor, electric start, horizontal shaft. This thing is not a muddin tractor, its a full out street machine. This motor pushes a 800lbs car around a 1/3 mile track at about 150kph, I'm going to make a tractor do that speed.. Going to have stock law tractor tires, balanced and front end work to make the steering tight. Hydro rear disk breaks and a 12 tooth clutch, and 68 tooth on the axle... I wanna be able to get through the subdivisions in a hurry, it will be straight headers into a stupid fart can I'm going to cut off the nearest shitvic. I'm posting this here to see in anyone would be interested in watching youtube videos, or just building threads.

With that set you will top out at 40-50 unless you have giant tires see this website http://www.diygokarts.com/speed-calculator.html

i seen a guy with a 6 speed 2.5 in back and 6in in front with a 20hp twin doing 55

Relax guys, it will work, and work well. #40 is a wider chain, same pitch, perfect fit. 41 is the light duty application for 40 chain.

I looked up specs and dimensions when replacing the chain. The way they list dimensions is deceiving, the one's that don't match have to do with the wider width, and larger pins. Rollers are still same diameter, I measured them with the dial indicators.


You may not be able to use 41 chain in place of 40 chain, if the teeth are too wide on the sprocket.

Next time you have a set of 41 sprockets, take a piece of 40 chain and check it out. Perfect fit.

He is right... I helped him with replacing the chains and they work great.

dylansrockinrigs wrote:

30hp100mph wrote:

I got a Briggs and Stratton Vanguard Charlotte 660 racing engine, making 30hp at 5200 rpm. It's got a rev limmiter, oil pressure gauge and oil temp gauge stock for the motor, electric start, horizontal shaft. This thing is not a muddin tractor, its a full out street machine. This motor pushes a 800lbs car around a 1/3 mile track at about 150kph, I'm going to make a tractor do that speed.. Going to have stock law tractor tires, balanced and front end work to make the steering tight. Hydro rear disk breaks and a 12 tooth clutch, and 68 tooth on the axle... I wanna be able to get through the subdivisions in a hurry, it will be straight headers into a stupid fart can I'm going to cut off the nearest shitvic. I'm posting this here to see in anyone would be interested in watching youtube videos, or just building threads.

With that set you will top out at 40-50 unless you have giant tires see this website http://www.diygokarts.com/speed-calculator.html

Need a calc with pulleys, and yeah there's really a huge difference on the tire dimension.

Stretch44875 wrote:

Relax guys, it will work, and work well. #40 is a wider chain, same pitch, perfect fit. 41 is the light duty application for 40 chain.

I looked up specs and dimensions when replacing the chain. The way they list dimensions is deceiving, the one's that don't match have to do with the wider width, and larger pins. Rollers are still same diameter, I measured them with the dial indicators.


You may not be able to use 41 chain in place of 40 chain, if the teeth are too wide on the sprocket.

Next time you have a set of 41 sprockets, take a piece of 40 chain and check it out. Perfect fit.

You've tried it so...