hey guys i know this might sound weird but its a legit question. Ive always wanted to do a turbo project but considering i might be selling my car next year for school i dont wanna do it to my car so here was my idea.


My friends neighbor is selling a go cart he bought 2 years ago and used for about a week and has been sitting ever since. He has decided to sell it for 150 bucks and it still runs and drives perfect except for a bent linkage in the steering.

Heres my question, i can get one of those 10 HP briggs and stratton engines for like 15 bucks from the guys i used to work for at a custom exhaust shop. Is there a turbo that would be small enough to spool on this engine and if so which one.

I think it would be fun as hell to play with a turbo go cart and it would also be a great excuse to buy a MIG welder. let me know what you guys think, thanks a lot.


Matt

 

Over the summer at a car show I saw a turbo at a vendor's booth which was about four to five inches in diameter. My friend has a go-ped and we thought of the same thing, however the guy said you would need at least 25 hp to push it. I don't remember what kind of turbo it was but that sure would be badass..

 

stiener lawnmowers make a small turbo for their diessel garden tractors.

 

I was thinking of doing the same kind of project, and your best bet is to supercharge it using a smog pump off of an older V8.

It is a belt driven pump that injects air into the exhaust to help the catalytic converters work better. Hook it up to your intake and it injects air in ther, and on a small enough engine, it makes positive manifold pressure.

Just do a google search for "smog pump supercharger" and there are a few pages that can give you some basic information, but you really gotta figure out a lot of stuff on your own.

 

yeah that might be fun, it would be a winter proect so i want it to be something that i can work on for a while

 

holy **** i just found this link and this it exactly what i want to do now, this owuld be so sick, ill do it on the 5 hp engine forst to test it then ill create the baddest briggs and stratton on earth!!!!!!!!

http://www.turborick.com/dirt.html

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by madhatter07 &raquo;</TD></TR><TR><TD CLASS="quote">holy **** i just found this link and this it exactly what i want to do now, this owuld be so sick, ill do it on the 5 hp engine forst to test it then ill create the baddest briggs and stratton on earth!!!!!!!!

http://www.turborick.com/dirt.html</TD></TR></TABLE>

Yeah, thats the site that I got most of my info off of. I looked up prices at a junkyard and a smog pump is like $4, so even if it ends up not working, you didnt pay much for the engine, and $4 for the "supercharger", it would be a good, ceap learning experience.

 

so are these smog pumps belt driven or how would i drive them on the engine. does anyone have pics of one

 

Some of them are belt driven, and this is the kind you want. I was looking at getting them off of an older ford 302.

You can get them off of F-150 trucks or older mustangs, you will know if it is belt driven or not, don't get one that isnt belt driven.

 

what about a 20 lb bottle of nitrous with a 10 HP shot? hehehe

 

our concrete saw at work is a 3 cylinder diesel, and has an internally lubricated turbo about the size of my fist on it..seriously

 

I been throwing this idea around for a long time. It would take a small T2 to make this possably work and even then I am not sure. I think if you could get some small turbo's from European cars (The 1.0L turbo's) you would have somthing that a briggs may be able to turn. Also think about how cheap it would be to get a piston and rod made up for the extra strength. The other issue is you need oil pressure for the turbo.

 

I think a K03 off a 1.8t might do the job...they are **** small, you can almost cover up the inlet with a quarter.

 

I have built a few xr 50 honda dirt bikes and i did a a similar progect, except i used a super charger made out of a vacum cleaner motor i turned using the flywheel i have also put one on a go cart frame it works okay, and you can pick an xr50 motor up for cheap hell actually a hole bike. make sure you get a 1985 or later because before that they were point motors and the electronic ignition is much stouter you can even morph an old xl 75 manual clutch to the motor, these motors are better for what you want to because they have 3 speed transmissions you need to figure out how to pressurize the float bole or you will blow the motor in about ten minutes

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89civic1.8T &raquo;</TD></TR><TR><TD CLASS="quote">I think if you could get some small turbo's from European cars (The 1.0L turbo's) you would have somthing that a briggs may be able to turn. </TD></TR></TABLE>

You would prob need an even smaller turbo for it to turn that and make usable power. Remember that it is only one cylinder, so its displacement is severely limited.

Just go with the supercharger, way easier and much more cost effective.

 

yeah thats what im thinking, im looking to spend no more than 50 bucks and by the time i get the turbo and all the piping done with it wo9uld be much more than that.

what would i use to turn the belt for the smog pump, is there a pulley on the briggs ans stratton engines

 

That is what i had to figure out before i gave up on it and decided to spend my money on a header.

I think you might be able to attach a pulley to the flywheel somehow, then run a belt up to the blower pulley and route your own piping.

Im, not sure about it tho.

 

well what i was thinking was to make a freely spinning shaft to attach to the engine where i would then have both ends with a pullley on them. The i would have to flywheel drive one ene with the other end in turn driving the supercharger, i know it a bad description but i hope you get what i mean.

 

The way we figured it out with the engine we had was to weld a shaft to the flywheel and put a pulley on the end, so it would spin with the engine, and therefore spin the blower at the right speed.

I will see if we can make up some plans or drawings tomorrow, my friend races go-karts, so he would know how to go about it.

 

thats awesome, i think it wouldnt be tremendously hard, and it would be a blast to drive, did you come up with any drawings?

 

My friend wasnt at school on friday, so i didnt get a chance to talk to him, but he is probably gonna come over and do some welding for me, so I will talk to him about it within the next few days.

I am sure it would be fun to drive, as a extra cirricular school activity, we have a "super mileage" car that we built, it gets over 500 mpg, it had a stock 3.5 horse, and it got up to 60 mph in under 1/4 mile, so I am sure with 20 hp, it would be a very exciting ride to say the least.

If you havent ever driven a fast go-kart, 50 mph when you are 3 inches off the ground is like 120 in a regular car.