cy motor

[andyken]

http://www.largescalerc.com/285ccgp290motorwithclutch35hp-black.aspx


http://www.largescalerc.com/285ccgp290motorwithclutch35hp-black-1.aspx


Any one tried these in a xb?


Are they better than the stock motor?


Direct bolt in?


I think they are both 4 bolt 3.5+ hp

 

[Guest]

They would be a direct bolt in. They would not be much better, if any, than the stock engine. You would maybe get better top end as they would rev higher.

 

[andyken]

Just been looking to hop up a little without breaking the bank.

Is the stock motor 3hp?

Any other sugestions ?

Maybe around $2-300 range.

I have a rear jetpro, and a [hard to start] 990 carb on the stock motor.

I can reuse those parts, if I get just the motor, but I think I want a carb with a choke...

 

[Guest]

If you don't mind using your flywheel, coil, covers and clutch case. The long block engines are a less expensive way to get more power. http://www.oneillbrothers.com/rc-car/engines/prostock-ported-full-mod-long-blocks/1722-5hp-prostock-29-5cc-4-bolt-long-block.html

 

[cherryride]

what about a head kit?

 

[Guest]

what about a head kit?

If your not afraid to do it the head kits give the most bang for the buck, for sure!

 

[cherryride]

this 1 is beast.

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.4168/.f

30cc doesn't need the crank.

get the zenoah gaskit

 

[larryo]

HI i would just lighten the piston and cut eyebrows in the head,widen the exh port and arch the top.The piston skirt on the intake scide file off 15tho at a time.I have pic of the work i do but just can't get them on the forum lol.

I do mod engines it's fun to see what u can get out of them.

 

[Guest]

A lot of guys will tell you that kit makes great power.

 

[92 vert]

I have the 4 bolt F270 with a side dominator...its a great motor for the money..

 

[andyken]

If you don't mind using your flywheel, coil, covers and clutch case. The long block engines are a less expensive way to get more power. http://www.oneillbrothers.com/rc-car/engines/prostock-ported-full-mod-long-blocks/1722-5hp-prostock-29-5cc-4-bolt-long-block.html

http://www.oneillbrothers.com/rc-car/engines/prostock-ported-full-mod-long-blocks/6261-5-5hp-prostock-30-5cc-4-bolt-long-block.html

Is there a difference between these?

29.5 = 5hp

30.5 = 5.5hp

Both same price?...bigger cc any better?

 

[Guest]

I'd go with the 30.5. It should have a bit more torque also.

 

[andyken]

I'd go with the 30.5. It should have a bit more torque also.

Will all the parts off my stock motor fit on ok?

Pull start, flywheel, coil, clutch etc?

 

[Guest]

Yes it will bolt right on.

 

[andyken]

Yes it will bolt right on.

What about carb intake manifold? Should I get a new one?

 

[Guest]

What about carb intake manifold? Should I get a new one?

If you don't like the 990 you could go back to a 668. However the 990 rocks on the ported engines. As for the intake, now would be a good time since its in the build stage.

 

[andyken]

If you don't like the 990 you could go back to a 668. However the 990 rocks on the ported engines. As for the intake, now would be a good time since its in the build stage.

I think I will try my 990, but should I reuse the stock manifold?

I heard the stock one can warp, If get get a new one...is there a non warping/ metal version?

Thank you for all your help!

 

[Guest]

Yes I use the aluminum versions with the Teflon gaskets. This is the one I like. http://www.largescalerc.com/ShortBilletAluminumIntakeforCYZenoah.aspx

Before you install it do a test fit of the carb screwed to the intake to make sure your screws don't extend through to the back side of the intake. This is a common cause of air leaks. You may need to shorten your carb screws a few threads.

 

[andyken]

And another one....do I want 3/4" or 1" velocity stack?

I'm pobobly going with a dt1 tripple stage.

 

[Guest]

The 1 inch. I'm not sure why its not printed in the description, but the 3/4 inch stack has a smaller inside opening. Too small for our carbs. I thought I'd try one once. LOL Still have it with no use for it.