I'm about to buy a set of SRP 9.1:1 and Eagle con rods for my D16... Are the rods and/or pistons heavier than the stock ones, due to the fact they're more beefy? For those who have aftermarket piston/rod setups, have you noticed any vibrations never there before?

 

forged rods and pistons are generally lighter and stronger than stock.

 

accually the eagle H beam rods seem to be a little heavier than stock (not all applications though)

if you can find a set of I beam rods those would be great.

 

Depends on the application. But I wouldn't worry too much if you're running forced induction. The "beefier" parts will most likely be stronger - again depending on the application.

BTW, what is the application? I mean besides D16, FI or NA or NOS?

 

My buildup is a D16 running FI, plans for about 15psi of boost.

Apparently, the second generation of Eagle rods do NOT require the notching of the bottom of the cylinder?

 

I have the same set up with the exception of 10.5-1 CR and yes they are a little heavier. You need to get the pistons and rods weight matched (make them all the same weight) which they will probably be really really close right from the manufacturer. Because of the design of the four cylinder engine the crank does not have to be balanced when changing pistons/rods as would be the case with a V6 or V8 engine. I had the machine shop spin my crank anyway and it came out dead on. They said they couldn't have gotten it any better than it already was....GO HONDA!!!!

 

You will need to have a machine shop pin fit the rod and piston to the wrist pin. Eagle leaves the tolerace of the small end of the rod real tight so that it can be machined to the proper clearance for the application. You'll know what I mean when you try to slide the pin through the rod. TIGHT!!!