[stephen_bernasc]

Am experiencing vibtrations at different rpms. This is what I have done to this....thing. Any suggestions? Am stationed in Italy with zero professional mechanics to engage.

Computer Code G1Z1 JMS Chips reprogramed
C&L 80mm MAF
BBK75mm TB
C&L Upper Plenum
Typhoon Intake
Steeda Underdrive pulleys w/ adjustable timer
Comp Cams Adjustable Timing Gears
Comp Cam Grind XE270AH-13
Intake Exhaust
Valve Adjustment
Gross Valve Lift .550 .550
Cam Lobe Lrift .3000 .3000
ADV. DUR. @ .050 VALVE LIFT 270 274
Valve Timing @ .050 OPEN CLOSE
INTAKE 8BTDC 46ABDC
EXH 56BBDC 2ATDC
Intake Exhaust
Duration @.050 234 238

SHORTBLOCK:
5.0SB3021 5.0 SUPER MODular Max Quench: Balanced to racing tolerances
and blueprinted, forged DSS Pro-X Series pistons, assembled in a
Level 10 race prepped iron block with the billet aluminum Main
Support System installed with custom ARP main studs.
SPECS: BLOCK: Level 10 race prepped iron block - deck equalized
and squared, deck plate bored and honed .020" in CV616 with sub 10
micron filtered man-845 honing oil, and numerous other race prepped
operations. RODS: 4340 forged 5.850" H-beams w/ ARP 2000 bolts
& full floating pins, CRANK: forged steel 3.750" stroke 8-bolt,
PISTONS: forged Pro-X # 4650 (Max Quench -21cc), RINGS: ductile
iron, plasma-moly E-916K, ROD BEARINGS: tri-metal CB-745P,
MAIN BEARINGS: tri-metal W: MS-2202P/R: MS-2204P
4,449.95 4,449.95T
51.80 51.80T
186481 4.6/5.4 SFI aluminum flywheel 8 bolt 339.95 339.95T
Off Road X-Pipe
3:73 Rear End
Lowered 1.5 Inches

[cindys_sn95]

is this at speed or sitting still? if you are going down the road it could be a lot more stuff! driveshaft,wheels,tires......

[towkingmck]

if any thing check bal/flywheel weight make sure the same poss

[stephen_bernasc]

Vibrates in neutral and when driving. Leaning towards the fly wheel out of bakance. is this unusual in a new clutch assembly? Have to mail it back to the States as no one can do it here. I miss America!!
Thanks for the advice.

[rj8806]

Originally Posted by stephen_bernasc

Vibrates in neutral and when driving. Leaning towards the fly wheel out of bakance. is this unusual in a new clutch assembly? Have to mail it back to the States as no one can do it here. I miss America!!
Thanks for the advice.

If it vibrates while sitting still and bringing up the rpm's, then it is either a out of balance flywheel or a bad harmonic balancer on the front of the crank.
Clutches are all zero balanced so that should be ruled out.
Typically, the 5.0 motors are 50oz counter balanced but you stated that the motor was balanced and blue printed. Did they have the flywheel and clutch installed when they balanced the rotating assembly? If not, that is likely the culprit.



Richard
Tech Support
Tremec TKO, T45 & T56 Transmission Systems