MustangWorks.com : Ford Forums - View Single Post - Engine Balancing Basics

2FastLX · 12-20-2002, 06:59 PM

Please keep checking this post because I will probably think of more questions as this thread gets responses.

This may seem to wander off topic a bit, but bear with me...
I will be doing one or the other options below.
OPTION #1:
Go all forged internals and stroke the engine to 393 cubes with a main support, windage tray, etc. In other words Satan himself under a hood.

OPTION #2:
Freshen up the stock 5.8L, add a main support, and drive it until I can afford option #1.

I don't plan to race the car other than an occaisional trip to the drag strip, but I do want it to be streetable and more importantly - dependable. I'm guessing I will be able to pull somewhere in the vacinity of 12lbs of boost from the T3 turbos I have and I have been told I should see max boost by 2500 RPM. I could not even venture a guess at how many RPM the engine will be turning at max HP, but I'd like to keep it under 6500 RPM.

With that said I won't be altering balance if I use a stock bottom end, but what do you think I should do if I do go with the 393 kit? Should I go zero balance or will 28 do? Any idea what the price difference would be for a 28oz balance and zero balance? Also if I decide to go zero balance, or actually if I can afford to, does it require a special crank? Or will any forged stroker crank do?

Thanks for the info and advice.

12-20-2002, 06:59 PM	#9
2FastLX The Photoshop Guru Join Date: Feb 2001 Location: Mecca, Indiana Posts: 1,419	Lots of questions... Please keep checking this post because I will probably think of more questions as this thread gets responses. This may seem to wander off topic a bit, but bear with me... I will be doing one or the other options below. OPTION #1: Go all forged internals and stroke the engine to 393 cubes with a main support, windage tray, etc. In other words Satan himself under a hood. OPTION #2: Freshen up the stock 5.8L, add a main support, and drive it until I can afford option #1. I don't plan to race the car other than an occaisional trip to the drag strip, but I do want it to be streetable and more importantly - dependable. I'm guessing I will be able to pull somewhere in the vacinity of 12lbs of boost from the T3 turbos I have and I have been told I should see max boost by 2500 RPM. I could not even venture a guess at how many RPM the engine will be turning at max HP, but I'd like to keep it under 6500 RPM. With that said I won't be altering balance if I use a stock bottom end, but what do you think I should do if I do go with the 393 kit? Should I go zero balance or will 28 do? Any idea what the price difference would be for a 28oz balance and zero balance? Also if I decide to go zero balance, or actually if I can afford to, does it require a special crank? Or will any forged stroker crank do? Thanks for the info and advice. __________________ Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. "The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance." Griggs Racing ICQ# 42269241 Last edited by 2FastLX; 12-20-2002 at 09:16 PM..