I've got a set of eagle rods for my GSR motor... and some CP pistons in the mail. Is it possible for me to mate them together myself, or do I have to pay a machine shop to do it? A friend of mine was telling me that you could freeze the wristpins (to make them slightly smaller) and then slip them in... is this feasible?

 

^^^

 

ttt

 

anyone?

 

Hey, just call any local machine shop, I used Napa here in Loveland and they assembled my pistons and rods for $20 out the door.
HTH
M

 

That's pretty cheap, I assume that is for all 4? Still, it would be nice to know if it is possible to do yourself?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by piscorpio &raquo;</TD></TR><TR><TD CLASS="quote">That's pretty cheap, I assume that is for all 4? Still, it would be nice to know if it is possible to do yourself?</TD></TR></TABLE>

Yeah $5 per piston, so $20 total.
Mark

 

Thanks for the heads up.

 

What about balancing? A local shop (that's definitely reputable) put my buddy's JE's onto his crowers and balanced them... for $80

 

What needs to be balanced? I was under the impression that those parts (and most race parts) should already be balanced.

 

I thought that as well, but I guess there was some balancing needed in my buddy's case... crower rods and JE pistons.... I think he just made sure that the rod/piston combos all weighed the same withing a certain (unknown) tolerance. I just don't want to have to pay $80 to have it done if I can do it myself.

 

i believe the eagle rods are for full floating pins and the cp pistons have the snap rings to hold the pin in - shouldn't need to be pressed in - just slide the pin thru the piston and rod and put the snap rings in each side of the piston

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">i believe the eagle rods are for full floating pins and the cp pistons have the snap rings to hold the pin in - shouldn't need to be pressed in - just slide the pin thru the piston and rod and put the snap rings in each side of the piston</TD></TR></TABLE>

That would certainly make things simpler.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by servion &raquo;</TD></TR><TR><TD CLASS="quote"> A friend of mine was telling me that you could freeze the wristpins (to make them slightly smaller) and then slip them in... is this feasible?</TD></TR></TABLE>

If you have to do that, then you have too little clearance. you should be able
to easily assemble it in room temp.

 

all conrods and pistons must be balanced,
my friend once ordered custom demello rods, and Wiseco pistons with totall seal rings, we weighd it in house at our garage, and saw that the rods differ a little bit all four of them, and same with the pistons, we took at it to a reputable shop to weigh, and the guy there says its pretty normal with those tiny weight diff. but my friend has spent way too much for the engine alone , so we were not accepting the "its pretty normal" answer, so we went to a machineshop that does the machining for a F-3 team here, man it was expensive, but we got them rods identical in weight, and same with the pistons, later on the guy in that shop and the guy who machined them for us, says that yes its pretty normal having those weight diff. and the only porb would happen is if the engine would see 9k rpm all the time, and or even higher than that, he says that by that rpm range those tiny weight diff.'s becomes huge weight diff. it makes sense dont ya think,
hope all you guys, would do this , if u plan on drag, or any racing at all, hope i shed some light

tnx