Anyone have any info or know of anyone using rotary engines in dirt track racing. Can you you setup up a rotary on mechanical injectors (Hilborn or kinsler injectors for example) with methanol fuel and dry sump oil sytem. Trying to find links of any sort to help me research. 13B two rotor engine is what I'm thinking. Whats the weight of engine and where can I find dimensional info on the web.



Thanks, kerry

 

I'm not aware of any mechanical injector kits for the rotary engine, but it's possible to set it up.



Take hilborn for example. The single throat application. Appears to be IDA mounted.



http://www.hilborninjection.com/product.as...45&CatId=36



That's 1 and 11/16 " bore, which is around 42 mm. Good sizing for a single rotor, so you could get two of these, and perhaps check out this website for an IDA manifold to bolt to whichever block you want to go with.



http://www.tweakit.net/shop/index.php?cPat...230d1262e7d8b57



They have an array of IDA manifolds (dual mount) for the 13B. That's pretty much a bolt on kit without doing much research. Better yet, two of those 42mm bore mechanical kits would work pretty slick on a peripheral ported 13B. The hardest part would be syncronizing the throttle plates, since it doesn't appear they sell them with a single throttle linkage for two throats. Still, not too difficult to fabricate. As far as the fuel pump goes, the mechanical units they sell appear to be pretty easy to work with. You wouldn't have a problem mounting it to the front cover / front iron mounts where the A/C compressor typically gets mounted. Even when not equipped, the 13B has a big "blank spot" on the driver's side for the A/C and power steering, where racers have been seen mounting their alternators for real estate to fit big intake manifolds or I/C piping. Even if it didn't fit properly on the drivers side, you could relocate the alternator in that spot (proven to fit), and mount the fuel pump where the alternator is typically, and run nice short lines right to the mechanical injectors. Although expensive, it's still possible for roughly half the cost of the same type of setup for a 4 cylinder engine.



Forgive any errors in my input, I've worked with a ton of diesel mechanical injection systems, and only one alcohol mechanical injection system on a drag car. The gasoline injection systems might have a few slight differences, but anyways there's something to think about.



I'd estimate the shortblock 13B (block with no manifolds) ~150lbs - ish. It's a pretty small package with alot of punch. There is dry sump kits out there for the 13B, can't remember exactly what website it's on. Might be on tweakit.net as well.



For more links, checkout the general rotary information thread in the FAQ section, it's got a ton of external links to parts manufacturers for the wacky/wild stuff that you don't see everywhere (helps you understand what is easily accomplishable).

 

Thankyou!

 

there was a guy out in washington state who built a 4 rotor and used it in a dirt late modle. unknown if he is still running that combo. google serch for that car. i do not remember what the site was but i do remember it was rather informative.





randy

 

on the 80's they did run a klugelficher/bosch mechanical injection setup. they ran pump gas though



http://www.jerryslittlecarshop.com/photos/...or13b_motor.gif

 

I JUST happen to have THAT slide throttle hanging on the shop wall. I am getting a new project so the shop needs a cash infusion. Make the right offer and it can be yours!!!!