Turbo Whizzer

now how does that turbo oil...all the turbos ive ever dealt with have to have oil pumped to them...the ones i deal with at work have oil and coolant to them...now me and a friend got drunk in the garage, we finished that 30 pack with a mass of cans and a mazda turbo attached to an old honda motorcycle...his brother in law put in on the dyno the next week and asked why would we build a 187hp motorcycle...the only thing he could say was we were drunk...oh by the way i was scared to ride it...it lagged real bad taking off but when that thing spun up you couldnt keep the front wheel on the ground...so lessen learned...no more drinking beers with a mig welder and a mill...hahaha just kidding thats always a fun night...sorry got side tracked....ive heard of some smaller turbos being sealed units just not the 80lbs monsters i deal with at work

It's not just a matter of RPMs.
A turbo has to be sized for a target flow rate, and that's when it delivers maximum boost.

The smallest turbo production motorcycle I can find online is the Honda CX500TC, but I cannot find specs on it online anywhere.

The Yamaha XJ 650 Turbo (made in 1982) is the next-smallest size I could find. It was a 650cc engine and its max torque was at 7000 RPMs and max HP was at 9000 RPMs. That's flow rates of 4550 and 5850 liters/min.

The flow through a 138cc engine @ 8000 RPMs is only 1104 liters/min. The XJ 650's turbo will spin, but is not going to produce much boost at all, and might not produce any more than without the turbo at all.

Turbocharged motorcycles didn't last long, they were tried a few times back during the 1980's and weren't real popular in the US marketplace. What else would use turbos as small? (or even smaller???....)

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My point here is not that "I don't believe he did it" because obviously he did, but what I'm wondering is what did the turbo come off of? Because even the smallest (motorcycle) turbos I know of are still way too big for a Whizzer-sized motor to run.
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I dunno much about it - but a few minutes on Google turned up these;

RHB31
GARRET GT12
KKK KP31
Borg Warner S1B


KKK KP31

Notice the guy's finger, that thing is tiny! Yet TBH they're all still a lil on the large side, there's a lot of talk out there but it seems most are on around 300cc engines...

Hi Everyone,

Maybe I can use the turbo and connect to both Whizzer motors [276 CC] on my Bonneville special. Hummmmmmmmm.

Have fun,

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Quenton
www.ezmotorbike.com

I got interested in building a turbo jet-engine at one point, but couldn't find any sources of cheap turbos.

Local salvage yards all strip the turbos and blowers off cars they get, and send them to rebuilding companies for the core fees. The turbos that junkyards have are all thoroughly ruined, from rain getting into them through open intakes and seizing the bearings with rust. None of the local auto-parts stores I asked at sold turbo rebuild kits at all, they could only get new or re-manufactured turbos for prices of ~$1000+.

You can find used (pulls) turbos on eBay, as well as some rebuild kits. The eBay turbos were all at least $300-$350, which was more than I cared to spend, so I never did it. And most of the turbos you see on eBay, you still can't find any rebuild kits for..... So, you almost have to see what rebuild kits there are, and then buy that model turbo + a few rebuild kits at once.

I did buy one junkyard one for $25, just to see what I would get. The bearings were very-much ruined, and the rotating parts were severely rusted.

If anyone knows anywhere to buy smaller/functional or rebuild-able turbos and rebuild kits (other than eBay) I'd love to hear about it.......
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theres a guy on thumper talk who sells turbo kits for the yamaha wr 250x, he uses the little RB turbo. is making 54hp with it.
when ever the carb is placed before the turbo (which means the throttle is a restriction to the turbo inlet) any time the throttle is closed there will be vacuum in the turbo. the turbo uses positive pressure in the compressor and turbine housing to keep the oil in the chra, when you place the carb before the turbo it needs to be a sealed type turbo that can work under vacuum or it will suck oil out of the chra. accel made a blow through system back in the 70's, it used a diverter valve and a sealed turbo, was for a small block chevy. check out the acme web site, theres a vid of a 12hp lawn mower with the turbo off of a dodge mini van on it. it made 3lbs boost and was enough extra power to eventually blow the crank out of the block. was fun though.

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www.acmemotorbikes.com

Again with the warning that I know zilch about this product or the site it's from - I was wanderin' the webz and found these turbos and fuel injection systems for small engine apps: Turbocharger and EFI Fuel Injection kits

*shrug* Jus' thought someone might get a kick outa checkin' em out

yeah, thats the turbo you want, IHI is the leader in small turbos and thats a great price for it. never dealt with that site before but IHI's rb turbos sell on e-bay used for more than that sometimes.

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www.acmemotorbikes.com