JALVORD_2003_68

I was wondering the other day what was the largest wankel motor built. I think it would be interesting to see how a 3 or 4 liter would perform. What do you think?

Defprun

I've seen a Six Rotor, Carburated, no turbos 900hp!!!!

DrKillJoY

Hurley Engineering in the UK sells up to 6 rotors I think.

82streetracer

iTrader: (1)

gm made a rotary corvette concept car. it had a 2.6l rotary.

diabolical1

iTrader: (3)

rotary Vette


say ... anybody got some links or sites for those six rotor engines? until now, the 26B was the largest one i've known about. but 900HP on carbies ... christ! that's fantastic!!!

i wish i was a millionaire ...

82streetracer

iTrader: (1)

take a look at the road and track or car&driver,

whichever one has the 50 years of the Corvette issue.
in the artical about failed vettes there is a really ugle one that had a rotary engine.

a 2.6 L rotary would sound tight as hell.

diabolical1

iTrader: (3)

just in case ... i want to let you know that i wasn't trying to attack you ...

it's just when i think of GM going public with "ideas" of using a rotary engine ... i feel like i just got pee'd on by a homeless guy with gonorrhea or something ... that's all ...

peace

SunRedRX7

I have found the largest Rotary Engine I believe.
http://www.pegasuspower.com/SpecSheet/580rot~2.pdf

34.7liters, 6 Rotors, and 3000HP, so maybe its meant to be a generator not a car engine.

Rotary Power International's website
http://www.pegasuspower.com/

Vohaul

did you see the weight of those things.....??

good grief the 6 rotor weighs a lot more than my entire car

ioTus

iTrader: (5)

I think insted of doing a TII swap i'll just get the 3000 hp engine

Hurley UK:

http://www.hurley-engineering.ltd.uk/

The built a custom 3 rotor engine there, not too sure why that would be better than a 13b tho....

RotorMotorDriver

iTrader: (1)

I have seen that beast before...I had it under the hood of my car, but she didnt pull as hard as I wanted it to above 12,000 RPMs, so I sold it off to this company and bought myself a real car, 1983 GSL .

~T.J.

BrianHeston

Did anyone notice the length of 116 inches? Thats longer than our cars... More than 11 feet.

BrianHeston

peejay

Mazda had prototype 21A/22A two-rotor engines for the 240Z fighter they were going to make, before the oil crunch killed that idea. Much larger trochoid dimensions than the 10A/12A/13B/20B/R26B engines.

I consider a "big block" anything to me larger in all dimensions... for a piston engine this means the deck height is larger and the bore spacing is larger. For example, the 396 Chevy is a big-block because it has much lerger bore spacing and deck height than the small-block, even though its displacement is smaller than the largest small-block (400cid). The Dodge truck V10 and the Viper V10 are small-blocks in my mind because they are the same dimensionally as the 318/360 (technically, the Viper is based on the 318/360 and the truck engine is based off of the more modern 5.2/5.9( it just has an added pair of cylinders.

Hans

right, but a wider rotor face would lower compression right?, how much is there left to push against the housing? i guess you could do a really wide rotor with a big blower, or turbo since compression would be complementary

correct me if im wrong, but thats how i be seeing it working

peejay

A wider face wouldn't lower compression unless you widen only the middle where the dish is.

Likewise, if you keep the dish the same size, widening the rotors will cause compression to increase.

Hans

i see says the blind man, after i posted i kinda wondered about that, but didnt want to try and real world model it for my dumb brain

Manntis

Terms like "motor" are flexible even though some insist that "engine"is correct for mechanical and "motor" for electrical (were that so, how are sales at General Engines and Ford Engine Company?)

In contrast terms like "big block" or "small block", or the definition of displacement, have more specific meanings. For the purpose of concise communication, especially when dealing with engineering issues such as automotive mechanics and all the associated bits that make physical or financial owies if tinkered with incorrectly, it's important that well-defined terms not be assigned elastic or relative meanings.

JALVORD_2003_68

ok, sorry about that

Manntis

that was a quote from peejay's post, jalvord. NOt that I'm giving anyone in specific sh*t, just trying to keep communication clear.

JALVORD_2003_68

ok, i hear you

peejay

Well, exactly. Big block and small block are relative to the size of the basic engine and have little to do with displacement. Take a look at, say, a 351 Windsor (small block) versus, say, a 332 FE (big block), or a 400 Chevy (small block) against a 366 Chevy (big block) and you'll see my point.

So a 21A or 22A would be a big block Mazda, since they were huge in relation to our little 10A/12A/13B engines.

Directfreak

iTrader: (2)

peejay

Exactly what I'm talking about.... notice the 12A and 15A are the same size except for width... they're the same trochoid dimensions - same "block" just lengthened. (A 15A would have been a 13B with 10mm wider rotors just as a 13B is a 12A with 10mm wider rotors etc - 10A 60mm, 12A 70mm, 13B 80mm, 15A 90mm) The 21A is just enormous.