I know it is the rod/stroke ratio, but what does it actually mean for the engine?
i want to know if it is possible to use eagle H22a rods in a h23a with JE forged pistons.
how much work is involved? does it affect R/S ratio? is this a good or bad thing? Especially in terms of running a FI setup.

 

the Rod and Crankshaft determine the rod/stroke,

If you have an H23 crank you can't use H22a rods or your pistons will stick out of the block and likely smoke your pistons pretty quickly.

and if you search on 'rod/stroke ratio' you'll find some info

 

you can use the h22 rods if you move the pin up on the pistons. if you havent bought the pistons yet, it is no big deal. the worst part is the 2-3week wait on custom pistons.

it makes the r/s slightly better being the longer rods. better is always better in any engine, any use.


Modified by fastludeh22 at 12:11 PM 9/21/2003

 

I have done a search, and the only things I could find of R/S are from people wanting to know what r/s ratio's are on specific engines...

The problem is that I HAVE just forked out for JE forged pistons. I figure that they can't be altered...

 

I thought the H23's had the longer rods, so the H22's in an H23 would have the piston stuck down in the cylinder?

Anyways, the lower the R/S ratio, the more sideloading there is on the cylinder walls, making for more wear and tear and a lower rev-limit and powerband.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">I thought the H23's had the longer rods, so the H22's in an H23 would have the piston stuck down in the cylinder?</TD></TR></TABLE>
Nope, H23 has the shorter rods to match it's longer stroke.