Hey 'Geek

[Freiburger]

Can we put a Megasquirt on our minibike with a Chinese-knockoff B&S motor? Think nitrous enrichment.

Turk needs some minibike humility, and we're gonna deliver it.

[KeithTurk]

Dude... you need to think Burbank street racing for that Mini bike... mine's been so humbled it won't even come out of the corner...

Now if you want to race Honda's... I'll even bring out Tonya's Passport... simply cause it WILL run and ride... LOL

Keith ( always get um where ya know you can!!! )

[dieselgeek]

Hell yes we can do that. I was thinking of offering that up last night...


Have chad find a wrecked EFI motorcycle, grab a tiny fuel pump, 1 or 2 injectors, fab up an intake. If just running fuel control, we can trigger off the ignition (no need for a trigger wheel). If you want to go nuts and retard timing when you feed it the 75-shot, then ahve him put a trigger wheel and CKP sensor on it and we'll do timing as well.

sounds like fun to me. Sadly, a ton of the other megasquirt geeks have already done this on lawnmowers, weedeaters, and - get this - jet skis. So it's not totalyl original, but the good news is someone probably already has tuned maps we can download and fire it up! oh yeah, you'll need a hobby battery (6v is fine) to run the megasquirt until the engine is running and the generator comes online.

;)

[Freiburger]

Ooo, this is going to be good!

Sending in the medical insurance check today!

[Tommygun]

didnt they develop a microsquirt?? I forsee the need of knee pads and a rubber helmet

[Freiburger]

Good thing Chad carries both everywhere he goes.

(Man, I'm on today)

[slightlywickedchick]

It sounds like I to take out a life insurance policy on Chad and make sure his medical is up to date as well!
BTW...good one Dave...I knew I liked you :)

[shaun callaway]

this would be awesome. if it was me i would make sure you widen the frame a little bit and try and put a wider tire in the back. when i had mine we use a honda pressure washer motor, widened it and put the big fat tires on it because once you hit 60-70 mph you dont want the high speed wobbles. that can be a mess. with nitrous that thing will be a monster lol

[dieselgeek]

this would be awesome. if it was me i would make sure you widen the frame a little bit and try and put a wider tire in the back. when i had mine we use a honda pressure washer motor, widened it and put the big fat tires on it because once you hit 60-70 mph you dont want the high speed wobbles. that can be a mess. with nitrous that thing will be a monster lol



shaun makes a great point, if you want to really haul ass on one, you could go for the bigblock upgrade. 10.0hp motor instead of the weak 3.5 or 5.0hp motor. Hell, turbo it - why not?!?


a microsquirt would be a good idea but they won't support a nitrous output. Gonna have to go regular megasquirt on this one.

[KeithTurk]

My recommendation here is to NEVER walk away from your screen... even for a minute... next thing you know...

[shaun callaway]

the good thing is if you atch yard sales you can pick up edgers that have motors of all sizes for super cheap. the last go kart i built i had picked up a 5hp edger for 20 bucks. when i built the mini bike i had bought the pressure washer from a yard sale for 35 bucks. all it needed was a tune up (some people are just stupid) lol. i saw the bike in chads garage and it would be good for a starter but if it was me i would jump right in and drop the bigger motor in.

[VWMMP]

Or add one of these

http://www.mjmturbos.com/images/SMALLEST.jpg

[Narider]

Could this be the beginning of the Pit Bike Challenge?
Can anyone enter?












http://i122.photobucket.com/albums/o244/narider/Pit%20bike%20stuff/100_3231.jpg
http://i122.photobucket.com/albums/o244/narider/Pit%20bike%20stuff/100_3232.jpg

And people used to snicker at my basket....
Todd

[VWMMP]

THE PIT BIKE BS Challange. BS = Briggs and Stratton - Limited to 5HP motors - one power adder allowed. 1/8 Mile drag.

LOL

[KeithTurk]

Ain't no "used" to snicker to it Narider ( Todd )


Oh man... this just isn't good...

LIMITS ... someone has to put limits on this... or it's going to get outta hand....

How bout it's gotta have two wheels and a motor? Single cylinder... Or twins under say... 50cc's.. ( see I just got my 650 thumper in there didn't I... )...

screw it... just say Mini bike and if you don't bring one we laugh and send you home...

[dieselgeek]

joel, WHERE CAN I GET ONE OF THOSE TINY TURBOS!!!!


I was just starting the EFI project on my Scag lawnmower. two cylinder Kohler engine, needs a few pounds of boost, THAT LOOKS PERFECT

[VWMMP]

I snatched the picture from www.mjmturbos.com
For use in ultralight planes.

Try these guys for a TD02 http://192.48.234.65/ I think this is a TD02 here.

http://www.btinternet.com/~goosegog/turbodax_files/P8180049.jpg

[VWMMP]

LIMITS ... someone has to put limits on this... or it's going to get outta hand....

How bout it's gotta have two wheels and a motor? Single cylinder... Or twins under say... 50cc's.. ( see I just got my 650 thumper in there didn't I... )...

screw it... just say Mini bike and if you don't bring one we laugh and send you home...



How about 2 wheels - Pick a max size tire - Must have one power adder - Single Cyliner Briggs motor (keeps out the aprilla and bike motors) - Put a size limit on the frame.

[KeithTurk]

nahhh then I'd have to build tire gauges...

Just bring a mini bike or we laugh you off...

[bowtiemonster]

Those are cool. Wondering how to put it on my gas powered blender. Humm ::)?

[JeffMcKC]

Make it 1 gear 100 CC or less,N/A Class I will rule!!! I still have some of my old Komet open 100cc Kart motors laying around, I dont think I can Talk Doc into driving so it will be the Fat Guy on a Little Bike.

[BOWTIE6872]

did this ever run..
and if so.
where is the smokey burnout

[Brian Lohnes]

He actually put nitro through the thing until it blew apart.

Seriously.

Brian

[SpiderGearsMan]

this thread is worthless without photos

[SpiderGearsMan]

nitro or cox fuel

haha cox haha

[CM325]

this thread is worthless without photos


X2 ;)

[Brian Lohnes]

nitro or cox fuel

haha cox haha


The real stuff. I had my snoot in the mason jar.

Brian

[mike343sharpstick]

I have seen real-life pit bike races and the riders were actual expert/pro road racers that may or may not have ingested a fair amount post race-day beer.
I have also seen scooters and other assorted motorized two-wheeled whatevers do many things the engineers would never have imagined (think Honda Spree, 55 gal drum and a loading ramp ;)).
Anyhoo, ya' can't go wrong with a pit bike race, best mostest fun ever!

[milner351]

Not to divert - but while we're talking "small engines"

Scott - would you care to step into the 2 stroke outboard realm with your minisquirt magnificense?

I'm thinking about my "tower of power" straight six outboard with it's three carbs, and starting to wonder, how hard would be be to make this thing EFI?

[dieselgeek]

Not to divert - but while we're talking "small engines"

Scott - would you care to step into the 2 stroke outboard realm with your minisquirt magnificense?

I'm thinking about my "tower of power" straight six outboard with it's three carbs, and starting to wonder, how hard would be be to make this thing EFI?


We've done a few Jet Skis

The issue with a 2-stroke is that it's manifold pressure signal is NOT proportionate with load on the engine. In fact, when you hit the right rpm & load, you get POSITIVE map due to pressure wave tuning.

The good news is, a friend of mine in St Louis figured out that you can use a good old Ford MAF (0-5 volts) to meter the air and end up with a perfectly tuned 2-stroke. Figure out how to mount a MAF through a commin intake, and use a Megasquirt-1 and I can help you out. I'd still try to do port injectors.

-scott

[fahrenschnell]

Count me in for any mini-bike race..... ;)

Seth