Oneill Brothers Racing

We just built a couple of new motors. They are 30.5cc's. They have a 36mm big bore kit and a 2mm stroker. I just test ran the motor and it has more torque then anything I have ever seen.




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Conversions:

Number Of Cylinders = 1 = 1
BORE = 36 millimeter = 1.4173228346457 inch
STROKE = 30 millimeter = 1.1811023622047 inch


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Solution:

Cubic Inch Displacement (CID) = 1.8634425300347 inch^3


Other Units:

Cubic Inch Displacement (CID) = 3.0536352E-05 meter^3
Cubic Inch Displacement (CID) = 30.536352 centimeter^3
Cubic Inch Displacement (CID) = 0.0010783810937701 foot^3
Cubic Inch Displacement (CID) = 1.8634425300347 inch^3
Cubic Inch Displacement (CID) = 0.030536352 liter
Cubic Inch Displacement (CID) = 30.536352 milliliter

turnell

whats the RPM like in comparrison to a 26cc?


..........TURNELL..........

JustxOnce

My Feedback: (7)

Few questions

Who makes the Kit?
Price?
Power....torque and horsepower?

Thanks

Oneill Brothers Racing

I just built the motor so i'm not sure of the rpm's yet. I will send one out for dyno testing.

The motor is made by CY. We pulled the motor apart and took out the stock crank and added a 2mm stroker. Price $269 I will not know the hp until we send it out to have it dyno tested. This is not going to be an rpm motor. This motor is going to be a torque motor.

turnell

OK Cheers.



..........TURNELL..........

2pock

My Feedback: (4)

So this motor will be selling for roughly $269 ???

JustxOnce

My Feedback: (7)

Thanks for the quick reply

No Moa

My Feedback: (1)

i think the kit is $269, you provide the motor?

JRexA

I guess that price will be for a complete engine.

Here is the GP290 at DDM: http://www.davesmotors.com/store/product1017.html

2 mm Stroker Crank: http://www.davesmotors.com/store/product137.html

And then some extra gaskets to rise the cylinder a bit, to make room for the 2mm stroker.

I was talking to DDM about 3 months ago, and at that time they told me, that they where waiting for the next shipment, due around January/february 06, since the quality of the first shipment of GP290 engines that they recieved, needed a bit of improvement.

I went with the 29cc Race ported head kit in stead of the GP290 head kit and a stroker.

original.mb

SWEEEEEEET

I want one

Oneill Brothers Racing

$269 is for the motor complete with carb, chromed out, and a clutch.

2pock

My Feedback: (4)

Not Bad, Not Bad At All ! ! !
I have a project MB in the works. I was planning on putting a stock G260 in it, now plans may have changed a bit !

Oneill Brothers Racing

You can get everything at daves but this is what you are going to pay plus you will have to build it your self

GP290 chrome $199 http://www.davesmotors.com/store/product1017.html
Clutch $29 http://www.davesmotors.com/store/product592.html
2mm stroker $40 http://www.davesmotors.com/store/product630.html
.040 copper base gasket http://www.davesmotors.com/store/product37.html

You would end up spending $277.50 at daves. Then you would have to completely strip down the motor and put it together your self.

StefanL

Oneill Brothers Racing, even though you do not seem to have the dyno results yet, how does the motor feel?

I mean, I understand it has a lot of torque (yay), but how much does it suffer in the revs department? I have a Marder but still want a big engine for it, I have always liked the idea of "nothing beats cubic inches...".

I want one, but I just donĀ“t want to get it and find out later it just revs too low. Hey, a 30,5cc engine with a two-speed?! WooHoo!!! I have a gearing of 20/44 on my Marder right now, and it flies at higher revs. It just takes a little while to get there....the torque of a big block would be perfect!

carpy100

ive been thinking the same thing after changing my mind about having a screamer built.would rather run taller gearing with more torque...

get that thing dyno'd mr o'neill!!!

Oneill Brothers Racing

I test ran the motor right after I built the first one. Its a monster!! Its not built for rpms. I'm guessing that it will turn about as many rpm's at the 29cc motors (probably a little less). This motor has so much torque that you will be able to run big gearing and get more speed out of it and still have plenty of torque. We will send the motor out soon to have it dyno tested.

original.mb

very nice

Dr.ArmoMaxx

I still don't get it how you guys choose sikk or cy motor over a zenoah...

OLD_SLOW and in the WAY

its easy.....price,durability, selection of different components and displacements....... besides that they mod up well

original.mb

exactly

StefanL

Well I just ordered one so I guess IĀ“ll see first hand how it performs in a couple of days!

Haha buying new stuff for these cars...the fun never ends!

Stefan

carpy100

stefanl, what pipe you gonna be runnin with it?.....
O'neill bros, how much is delivery to uk in Ā£.

regards,
paul.

StefanL

To begin with IĀ“ll use my FG performance pipe. I suppose the engine could use a slightly larger pipe so maybe IĀ“ll enlarge the FG pipe later, weld in a piece of pipe at the thickest part to increase the volume. I havenĀ“t made any calculations yet as to how big it should be, all that is in the future.

An over the counter option is the RN Tuning fat pipe, from what IĀ“ve seen it looks like a perfect match for this engine..

Stefan

carpy100

stefan... you know the way to go is the fatty!
i dont believe the other pipes will enhance the big bore as this does.
i know o'neill dont market this pipe but from what i can make of it , maybe they should get involved.
it looks proper 'works'.....

OLD_SLOW and in the WAY

My sikk 29 boat engines loved the big fat pipes or the 2" band ones worked well