Topic: RC engineering parts load....

[ColinMc]

Ok I need some help. I just picked up an RC engineering big bore kit with pistons, golden rods, modified head with RC cam and reinforced cam towers, crank, lower end.... All off of an old drag bike that was torn apart. Is this stuff worth using in a street motor?

Pics to follow...everything looks barely used. I know this is a vague post. But i'm trying to decide if I should use or sell the stuff. I already have a motor that was Action4 modifed I was planning on using.

If I do decide to sell how is the market on RC Engineering stuff? Or am I better off just keeping and admiring the amazing looking rods lol.

[Jerry Rxman Griffin aka MuthaF'er]

Just depends on if you'd like to have 100hp vs 50hp under yer ass  Never hurts to have a spare engine!

Give you $100 

[754]

 Run it.. any idea of piston size ?

[Bill/BentON Racing]

Pics,we like pics!!!!! Good Luck,Bill

[CR750]

I think he's going for the money... parts are on E-bay  ?

Item number:  170672485029

Item number:   170672487162

Item number:  170672489062

Item number:   170672491598

Item number:   170672494116

[bert96]

 I just look at picture of the cam.....if it was me,i would not buy it



Bert

[ColinMc]

Lol thats not me...I'll get pics up tomorrow

[MCRider]

Lol thats not me...I'll get pics up tomorrow

I love the ambiance of the old parts. But practically...

The cam is probably too bumpy for a street engine. Would you use the rods without having them tested first? And if you're going to spend money testing, would it be better spent on modern bits and tech?

Crank is probably usable, but you'll still want to have it tested and balanced.

The head is proabable usable, but may need a valve job, which may uncover expensive problems. RC had a tendency to hog them out for drag racing, JMR head or an APE head may have a more modern finesse.  Pistons probably too high of a dome for a street motor.

I had collected a bunch of new/used parts and when it came time to use them, sold most of them on eBay and bot new.

Etc. you see?

I'll bet it would bring good money. Pay for a set of high performance shocks, HondaMan swingarm,  cartridge emulators in the forks.

[NitroHunter]

Just depends on if you'd like to have 100hp vs 50hp under yer ass 

Put it together, buy some GOOD gas and a hot ignition and go have yourself some fun.
While it may not be the most commuter friendly ride, it will certainly put a smile on your face when you screw it on. There were plenty of those bad hot rods rolling down the So Cal roads back in the day. 

[MRieck]

 I just look at picture of the cam.....if it was me,i would not buy it



Bert

Right on. Check out the valve to valve clearance problem on one of the head pics. That is very interesting (and telling) if it is a head built by RC.

[754]

 I dont think, other than visible cracks that you can test the rods..
 But if they handled 300 hp back then, you may have to try for a very long time to break them with 85 -110 hp..
 Anything can break being used wrong. I would just build an engine using cases that had little value, ie 73 or later, and if they do get damaged, no big deal.
 I think they built some very hot street motors back then, That would still be fun today....jmo..

[MCRider]

I dont think, other than visible cracks that you can test the rods..
 But if they handled 300 hp back then, you may have to try for a very long time to break them with 85 -110 hp..
 Anything can break being used wrong. I would just build an engine using cases that had little value, ie 73 or later, and if they do get damaged, no big deal.
 I think they built some very hot street motors back then, That would still be fun today....jmo..

There are some tests NDT (non destructive testing) like xray, and dye testing for cracks. I'm sure more. I'm with you in concept, but my paranoia wouldn't let me live with parts from which I don't know the history. Breaking some cases is one thing. Getting tossed on the pavement at speed is something else.  There's a reason it was taken apart i assume.

If it were all A-OK, yes it would be a fun ride!

[Jim F]

are those valves hitting one another or are they burnt?
they just look kind of funny to me

Jim

[MRieck]

are those valves hitting one another or are they burnt?
they just look kind of funny to me

Jim

They are hitting each other Jim. Actually the intake (which is opening) is striking the edge of the exhaust valve (which is closing). That is why I said if RC did that head it is BS. They knew what valve to valve should be set at. I'll tell you what...if both valves had been undercut a bit they probably never would have hit. You can do that on a belt sander if need be.

[Jerry Rxman Griffin aka MuthaF'er]

Would a little less cam duration have helped that also?

[MRieck]

Would a little less cam duration have helped that also?

More than likely Jerry. The intake valve appears to be oversize which really changes everything. The stock valve would be no problem. You can put wild cams in there but you really should mock up the head, spin the cam and see what is happening. I recently did this with a Harmon "SuperF" cam.

[MCRider]

are those valves hitting one another or are they burnt?
they just look kind of funny to me

Jim

They are hitting each other Jim. Actually the intake (which is opening) is striking the edge of the exhaust valve (which is closing). That is why I said if RC did that head it is BS. They knew what valve to valve should be set at. I'll tell you what...if both valves had been undercut a bit they probably never would have hit. You can do that on a belt sander if need be.

(Oops, bad post on my part, nevermind)