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Old April 26th, 2011, 05:15 PM   #30
Racer x
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Name: Eric
Location: Iowa City
Join Date: May 2009

Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X

Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
Quote:
Originally Posted by Lowspeed Lowside View Post
$4000? I think you misread that! In volume they should be <$300/piece.
There is very little information on small turbochargers. I read somewhere that the RHF3 (I think the RHB31 is larger) powered a 650cc Daihatsu (diesel?) engine. 650cc @ 5000 rpm would generate the same airflow as a 250cc @ 13000. Of course, we'd still like to find something smaller, but under our budget constraints that's probably as small as it gets.
the RHB 31 is very small perfect for a 250 four stroke.

http://www.chinese-parts-canada.com/...injection.html

the electric supercharger is 3795 to 4500 dollars.
http://www.superpowercharger.com/spc...crusher-hv.htm

one other thing to keep in mind . Since the 250 ninja is a flat bearing engine you need to use a flat bearing turbo. If you have a ball bearing crank then you use a ball bearing turbo. I could be wrong but that is the impression I got. Still doing research at this point.
As for engine ware with nitrous . I have passed about 15 lb of nitrous 20 hp shot through my engine. Only problem so far is the clutch . I fixed that with beefer springs. I did have some engine damage but that was totally my fault . So far this year no problem .
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