The max series is 53 grams heavier than the standard, which one should I use with the 8200 RPM redline? Will the max series clear the 4.25 inch stroke without issues?
I feel that the standard rod is plenty good for what you want to do. A lot of this depends on the weight of the piston and pin you use. If you were running a blower or NOS you might need the heavier rod but if you are normally aspirated you should be fine. You want to stay as light as you can and still have the rod do its job. Good luck, Keith Craft
This spring the 3400 + lb mustang will be in the 10.50 inch tire, 8.50 class at 3 tracks, Maple Grove, Atco, and Cecil county; it will be on the spray though.
jeez. how the heck do get it all to stay together? isn't 8200 pushing it a bit for an FE? i wish mine would rev to 8200, i'd be doing about 200mph!!!! LOL!!!
Hey Gary, I know that your combination was deeply thought out but IMO its asking alot of your engine with that much stroke to be spun that high. If your running NOS I really don't think you'll need to spin it that hard to run 8.50's. NOS engines work better if they are "lugged down" meaning less timing, lower rpms, higher rear gear ratios. Doing this will take full advantage of the torque provided by the NOS. Hey its your call so please don't be mad with my suggestions but I'm just throwing some things out there for you to think about.
I suggest you talk to the rod manufacturer, tell them what you propose. Rods and rod bolts are designed around the reciprocating weight, having the bob weight will help them design the right rod. I also would talk to the crank people. My engine is set up for 8000 rpm with a 4.375 stroke, however the rod people and crank people help me out, RWJ
This message has been edited by tdm434m on Nov 11, 2008 6:01 PM
You need to know your stroke, piston weight, pin weight, lock weight, and ring weight. With this info call Oliver and see what they recommend. We have run as high as 9000rpm with the 4.250 stroke crank. We were using aluminum rods though. Remember that at 8200 your piston speed will be just over 5800fps. Make sure you have a good vacuum on the crankcase to keep the rings sealed.
