FORGED 355 VS 355 WITH STOCK CRANK AND RODS [Archive]

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STROKER B

01-18-2010, 03:06 AM

ME AND MY BOY HAVE A LIL BET GOING ON THE HP NUMBER WE ARE GONNA PUT DOWN FRIDAY WHEN WE GO GET OUR TUNES
I HAVE A FULLY FORGED 355 WITH 6 INCH RODS
235/242-601/601 110LSA LIFT CAM
LONGTUBES
1.6 RR
SPEC STAGE 4 CLUTCH
4:56 GEAR
FULL SUSPESION
HARDEND PR
PORTED MANIFOLD
58MM TB
AND TRUE DUAL
PORTED HEADS

AND HE HAS THE SAME SET UP MINUS THE
6 INCH RODS
BEING FORGED
4:10 GEARS INSTEAD OF 4:56 GEARS

WAT DO U GUYS THINK WE ARE GONNA BUT TO THE GROUND ...NOTE WE ARE BOTH GONNA RUN 112 OCTANE

1FASTSS

01-18-2010, 09:59 AM

Since you have different gears this won't be an apples to apples test. You'll pull less becuase of the gears...M6 or A4?

AChotrod

01-18-2010, 12:31 PM

Who did the head work?

STROKER B

01-18-2010, 01:00 PM

THE WERE PORTED BY A RACE SHOP OUT HERE CALLED R&D THEY ARE REALLY GOOD
BUT THEY BOTH ARE M6'S THE FORGED ONE HAS A STAGE 4 SPEC CLUTCH AND THE OTHER ONE HAS STAGE 3+ CLUTCH

Fastbird

01-18-2010, 01:23 PM

Non forged and here's why: Those 6" rods will hurt you (weight, and rotating weight at that -- the crank has to spend extra power to move those suckers) not to mention the forged components are heavier than the non-forged. That, and the 4.56 will transmit less to the ground than the 4.10's. I'm betting on the non-forged motor, all other things being equal.

AChotrod

01-18-2010, 07:05 PM

i would think both should break 400rwhp

redtransam95

03-08-2010, 08:04 PM

what ever happened did you race yet?

myfirstchevy

10-10-2010, 07:12 PM

I am for the shorter rods on the non-forged engine making more power. A shorter rod will move the piston faster through the stroke as it rotates creating more velocity in the trough the head when the valve is open.

joelster

10-10-2010, 07:23 PM

So many more variables that aren't mentioned. Why the 112 octane? Your cars probably won't like it if they run fine on 91 or 93. What oil do you guys run? How much oil do you run? What air filters? Are they both 10-bolt rears? Is the forged motor balanced and the cast motor a stock untouched bottom end? You guys running the exact same cam? Who assembled each motor? Same valve lash? Same tune? How many miles on each engine?