I think power adder guys go to the dragstrip more than just about anyone on this board. Why else would we be running F*ing power adders right
I don't know about you guys but when my car is apart or dont run I still go to the dragstrip on days when my friends are racing. I like to help them out.
Well it seems that the pit area available is always really far away from the staging lanes. After numerous trips there and back on foot you start to get pretty worn out. Its further than the car has to go all day thats for sure. It also sucks to be at the starting line helping your bud stage and after his loud car tears off down the strip you hear them making the last call for YOUR class (HOLY CRAP!). Who wants to run all the way to the pit and then drive back to the staging lanes and try to cut a lgith while you are sill huffing and puffing from your half mile sprint.
Well I have seen some of my friends come upwith some pretty interesting solutions ranging from bikes to gas powered scooters, gopeds and quads. I like the goped idea because most times I dont trailer. I can drop the folded go-ped in the trunk. I looked into them and they have a few problems. They cost as much as some nice heads, they are smallish for my 260#, 6' 3" tall, size 13 foot frame. They look more like they are made for a 12 yearold than a big guy like me. They are barely the size of my one foot let alone both. They have a push start and no centrifugal clutch which I liked but when they bog down on a hill sometimes they die with a big guy like me.
I was looking through the paper and I see a sales ad for the parts store and on the front page is a scooter at the CSK stores (Checker, Kragen, Schrucks). It says 250 #'s and 20 mph and $249!. I have looked at some different ones for slightly less on e-bay but I always get afraid of getting e-raped on something like this. I figure well I will go check them out. If I get one and it breaks right away I will take it right back. My buds went with me and when we saw them we all bought one! They rock, and they go closer to 30 mph when topped out which is like twice as fast as I can even run! All this from 22cc's, I am amazed. I suggest if you need one and you have a store near you to check them out.

• ad for them at CSK
• Movie of us riding them like jack asses

 

That was awesome!! I love the video!!

LMAO

I may have to look into one of these little gizmos.

 

Im sorry if some feel it should be locked. I cetainly hope this is not the case. I feel this is as pertinent as "which heads to use with a blower" as far as Im concerned. We can call this, "which scooter to use with yor power adder car.

I know its a sickness, but everyone that knows me locally said "so when are you getting nitrous for it?" Its a sickness it really is. "Hi, my name is Tom and I'm a go fast junkey..." I thought about it and considered "what would I do if I put nitrous on it and blew it up? then I discovered

THIS!!!

It even has a centrifugal clutch and tranny like the 22 cc already on my scooter. It really is a sickness...

 

Nice vid! LOL I should tape me and my brother dragging riding lawn mowers (or anything with wheels and a motor for that matter)... That would be a good thing to have at the track, especially if you're going from the pits to staging lanes often. To keep this power adder related, when are you gonna turbo that thing???

 

actually Im waiting until I get the other motor then I might N2O it unless you can direct me to a turbo that is small enough for a 22 to 43 cc engine? I have looked, I figured the aftermarket would have something for a model airplane motor or something. maybe the compressor side of T25 would work if I could run it off the pull start side of the motor as a centrifugal style. As far as using a T25 as a regular turbo, I doubt these motors have enough exhaust gas to make the thing move even a pund or two what do you think? should I start a new thread? "Whats the smallest turbo currently available anywhere?" Maybe I dont need to...

 

Here you go B4C, it still may be a little big, but if you stuck a 5hp on there, then it would scoot!! And $1400 is a little steep.

http://www.tgfab.com/Funny.htm

 

You ask and you shall recieve......
it supposedly runs low 12s.. I have a video of it eating up an LS1 somewhere I'll post it if i come accross it

 

I think that my 22cc to 43cc idea could make a major difference.

There is such a turbo called a Tx-75 new from IHI but its like barely or unreleased. Also there is a T10 or T15 but I have only seen a pic of a T15 (the wastegate diaphram is like the size of the turbo). I dont see myself procuring either one of them anyhow. A T25 or some smaller stock mitsubishi like-import stock turbo would do to marginally. Maybe one from the geo metro canadian clone made by pontiac, the "turbo firefly" or a chevy sprint could donate a turbo. They were only lil 3 cyl cars. I talked to a two stroke pro today, he says "they are very airflow sensitive. a filter change or even the slightest bit more air in there makes a major feelable difference..." (insert electric ebay turbo jokes here please). I figure if I run the tiny exhaust tube into the turbo itself and get it real close to the impeller then I might get it to spin some. Even if it just "waves" some air in or makes 1 # of boost it would be considered a success because it would make a major difference according to him.

 

Ive seen that, I dont like it much, I like the concept but it sits wrong

I have one of a scooter racing a N2O bird but the scooter is a N2O scooter and its a nice one.

 

I like it too its the first one I ever made

 

My buddy and I thought about getting one of those. Doesnt it have some kind of gov on it to keep it slow that you can take off? If so I might be more interested.

Brian

 

no it uses a centrifugal clutch other scooters are direct drive. It revs as high as it's little two stroke "reeds" will let it. there is no govenor other than its onl 22cc...

 

With it being a 2 stroke you should b able to get or make a tuned pipe for it and pick up a noticable gain.

Brian

 

lol yeah, I been checking ebay,

43cc mitsubishi motor to replace my 22cc one : $120

tuned pipe to replce lil muffler:$108

you choose...

 

um.......both? Should be real fun then. After that you will have to do suspension work

 

I have an idea for a real fancy muffer (it looks suspiciously like a turbo)

for now I just bought one of THESE

 

Checked out that TG Fab place and man doies he have a cool shop. I'd like to spend some time aroune there... I'm not sure what you could do for the turbo, I don't really have a lot of knowledge about them. Maybe you could run a centrifugal blower, or a roots blower if they make them??? You might go to your local kart store and check out what they have for it there, you might be suprised with what they have. Now what would be really funny is if you do some mods to it and run it at the track one night... lol I wonder what safety reqs you'd have to have for that...

 

I would go ahead and get some Good LCAs and relocation brakets for it.

Oh yeah and a GMC 6-71 Blower!

 

Dude we need burnout movies .

 

I dont figure to raise the top speed much more or less to raise the takeoff some

 

my go ped would school that thing

Oh ya where's that turbo getting oil from that two stroke engine?

 

it depends on which turbo I use. if its not going to spin full rpm and barely produce boost, I intend to "resevoir" the bearing like is done on industrial equipment bearings with a gravity feed of oil.

If I can find teensy turbo that will run like its supposed to then a low pressure pump will be used to oil it.

I just dont know about running nitrous on it because nitrous is kind of passe, done, overdone, you know?

show me one "regular" goped, two stroke and all runing a turbo. I could be the first.

 

i read somewhere that its really hard to turbo a 2 stroke gas engine.

 

there are many kits for quads and snowmobiles

 

What about a vaccum pump? Use it in reverse somehow.. Its positive displacement tooo so you get your take off0.0

 

very very good idea

 

Anybody know or heard anything about this one?

http://www.rabbitscooters.com/products/18.htm

Tim

 

..... all you guys have way way WAY to much time and money on your hands....



and the nitrious scooter vs LS1 nitrous TA is a fuel **** vid. They have a lot of funny stuff on there site.

 

These things are pretty cool. Bit more than one of those little go-peds though lol Rode a friend's Ruckus over the weekend goes about 40 mph and is street legal. Just waiting on performance stuff to wake up the 49cc 4 stroke

 

i've got a goped sport for sale if anyone would be interested in it...its in decent shape, freshly painted blue and red.....the engine runs good, the carb needs some fine tuning, the tires still have about a quarter inch of rubber left before they hit the little dot that says to change them.....its got a bigger spindle for greater top speed, third bearing support so the spindle doesnt snap....yeah, so 200 bucks + shipping if anyones iterested PM me....lol
(BTW i gutted the muffler so it sounds BADASS, neighbors dont like it much though lol)

As for the smallest turbo, they make superchargers for nitro RC cars, thats pretty small.......lol so you may want to look for a SMALL turbo or supercharger, not the smallest.....lol

 

they do? show me...



Yeah some guy is selling them on ebay for way less, thats where Im getting that 43cc motor.

 

Here you go. Geez, I feel like the bartender who keeps serving the drinks even though he knows better.

http://www2.towerhobbies.com/cgi-bin...?&I=LXBY66&P=0

I don't think it's the type of thing you could rig onto any engine, kinda built specifically for this engine. I have never seen another supercharged R/C engine besides this.

 

A blown nitro motor.... I think you should put that on there... lol

 

no supercharger just a lil motor in the link, mebee it has a supercharger on it, but even if it does nothing I could use on mine.

I was looking at the pics of the mini V8's whese guys build and I think a blower from one of them would be really nice.

The 43 cc motor has arrived but it has a horrid muffler on it and power isnt up in mass like I expected. top speed seems similar. maybe a lil midrange. maybe its the muffler (I hope) I cant even put the better billet can muffler from the 22cc onto the 43cc (different bolt spacing). Friend is looking for a 3 cyl turbo from a chevy sprint.

 

Yeah the little r/c motor in the link has a roots supercharger on it.
I was just showing you, since you asked where.

 

yes i think i heard that too about 2cyl motors being hard to turbocharge. you have to remember, 2 strokes dont have "valves" as we know them, they just have ports drilled in the cylinder walls. they rely on the incoming intake charge to expell the hot exhaust gasses. they dont have nearly the exhaust pressure that a 4 stoke will, and thus its hard for them to spin a turbo.



Chris B, that is just wicked!!! did you build that?


you might be a gearhead if...

your kids go-kart has a blown small block and runs 9's

youve ever tried to turbocharge your washing machine

you have the only lawn mower in the state that has 500+ hp and a roll cage

your weedeater runs a 50shot of nitrous


lol i thought that was appropriate for this post

 

snow mobiler's and crazy sand racers that run quads all with 2 strokes swear by them, if they can do it as well as that R/C motor then I figure I can too

 

here is a new picture of it, the turbo is whats left unless anyone sees some 50cc weedwacker/chain saw motors around. I found some motorcycle 50 cc motors but they all have intregal transmissions I dont want that.

I figure all thats left is a turbo. anyone have a turbo sprint or firefly turbo laying around?

hows this for a before and after?

 

FWIW, if you get a lawnmower running too well, you’ll find that you start cracking the blade hub. When that happens 2 or 3x you’ll rip/crack the keyway in the crank (don’t ask how I know)

B4C- looking good. I’d be looking for a 70cc or better off of one of the bigger chainsaws. That should wake that thing up with about 2x the hp that you’ve got now. THEN turbocharge it.

 

I cant find anything like that.

 

I don't know where you'd get one aftermarket, but they're out there.

the 70cc is the start of stihl's "magnum" line... check out the 088 Magnum, 122cc's and 8.5hp:
http://www.stihlusa.com/chainsaws/comparison.html

(your 43cc engine is probably about 2.5hp at best)

 

whats the top speed on that new engine?

 

I have no accurate way to check it I know its fast enough to cause serious bodily harm If I decided to just "get off" at full speed. I doubt its even close to some of the beasts built using the common Patmont offerings (go-ped brand). then again patmonts dont offer suspension or nice as brakes as mine has.
I contacted stihl to see what they have.

 

actually I am trying to work out a deal for a 70cc right now. My 43cc is chinese made there are many 36cc - 40cc japanese made motors that make more power.

I thought I would update a little. Not wanting to rush into things I have been pondering over this thing quite a bit. Fueling seems to be a big issue on any power adder vehicle. I wanted to "blow through" because hooking it up would have been the easiest and starting would be way easy too but the boost (if any) could blow the unpressurized fuel back into the tank.

Idea #1: Im thinking either a lil manifold reference line into the tank would do so that the lil tank sees the same pressure the engine does. This would not allow the fuel to be "pressured" back into the tank because the same pressure will be there. I like this idea the most.

Idea #2: make it a draw through and use elecric start to get over the starting difficulty. I found electric starters for this think they are tiny and go between the pull start and the block.

I got the turbo. I intend to run a teensy resevoir under it and a little inline fuel pump to supply light oil pressure. got any tiny inline pumps in mind?


I also really need a source for the tiny turbo flanges so I dont have to get new ones fabricated.

 

FWIW, pressurizing the tank with pressure from the turbo will work, but I wonder about the wisdom in doing that. O2 + gas = bomb, and it really doesn't take much gas to get a good boom under the right conditions, or if one of the seam splits I bet a stream of gas propelled by fresh air, heated air will make a nice flame thrower (but I'll also admit that I'd probably try it myslelf).

I'm not sure that I'm following why you're expecting starting problems.

BTW, I got a chace to play with one of those 70cc magnum stihl's 2 days ago... I've got to tell you, if you get one of those working on that thing you probably wont want the turbo...

 

I dont think it will make a whole lotta boost and definitely not enough to burst the tank. if the tank starts looking a bit weak I will address a metal replacement.

The starting problems are the nature of the beast. two strokes are cold blooded enough as it is. because they lack any kind of low speed vacuum getting priming fuel into the engine from hand pumps alone can be a chore (two to 5 pulls atleast when ice cold) and thats with the carb half an inch from the jug. put a turbo in between the jug and the carb and I dont even wanna think about it

I would love to get a kick *** stihl powerplant, and you arer right a huge stihl motor would be enough but I tried contacting stihl through several different ways and was stonewalled even by the tech guys. This totally took the wind out of my sails considering that stihl is a major hot saw competition sponsor They did every thing they could to NOT help me.
No wonder people are using small blocks to build hot saws
(if it dont play for you then quit being lazy and update your media player)

 

The airflow on the little engines has got to be pretty small, so it might be in the realm of a weedwacker blower Better yet, why not "supercharge" it by taking a junked backpack or handheld blower, remove the engine, and attach a pulley to your engines output shaft, and spin the blower with it. It'll give you a bit of positive pressure which will be huge for 2 strokes

A.

 

I agree but all the blowers are plastic junk and are bulky. if this doesnt work the way I want it to then a centrifugal based on half of this turbo could be do-able I suppose.

There are a few things I have been as of yet unable to find.

1) supplier of turbo flanges

2) any info on the T17 turbo's used by RC guys with this sized motor.
3) any info on how this motor will handle the use of the nitro based RC car fuels.

 

I like this idea but how about with a little modification… how about trying a small smog pump or something similar?

I’d definitely go blow through here. I haven’t looked to see what those carbs need to handle boost, but worst case you can rig something to just dribble fuel into the intake through a small jet…

WRT to the big engine, have you checked with a small engine repair place (almost every town has a few “lawnmower mechanics”) or a pawn shop? You might be able to buy a complete chainsaw for less then the price of the engine, and I believe repair/rebuild parts are available.

 

the biggest part with chain saws is they use a different block case. The engine block is intregal to the device. Weedwackers and two-stroke snow blowers are more like the kind of engine I could use. They usually use the same shaft size and 4 bolt "bell pattern" I need. I am currently looking into a 73cc makita cutoff saw motor.