Thread: this combo with nitrous

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ok, i just found this combo and was wondering if it could handle a nitrouse system? or supercharger?

Displacement: 383 cu. in. Carburetor: Barry Grant Silver Claw 750 Heads: Air Flow Research 190, with 2.02/1.60 in. valves, 190 cc intake runners, CNC porting, and extra hand-porting Intake: Edelbrock Performer RPM Camshaft: Comp Cams hydraulic roller, with 235/242° of duration @ 0.050 in. of lift, and 0.555/0.576 in. of lift (Corrected valve lift with 1.6:1 rockers is 0.592/0.614 in.) Rockers: Comp Cams 1.6:1 Pistons: TRW forged Rods: Lunati 5.7 in. Crank: Scat 8060 cast Timing: 36° Comp. Ratio: 9.4:1

Thanks for any help u leav

Not enough compression ratio for the cam. You'll need 10.25:1 to 12.0:1 to make cylinder pressure.

Or, to put it another way, too much cam for the compression ratio. Here's a suggestion to get you in the ballpark. I'm not saying run right out and buy this cam, I'm just suggesting an alternate grind that would work with your static c.r., plus nitrous or a huffer. Read the description in the upper right hand corner. Always consult your favorite cam grinder for a recommendation based on your needs and your combination.
http://www.cranecams.com/?show=brows...tType=camshaft

how much might that cost me, and would it efect the combo?



thanks for any help.

that not a nitrous motor....here's some basic guidelines for a juice motor

strong bottom end...like a Dart block and steel crank...

alum rods cushion the hit and save bearings...these days they last much longer

PISTONS...ROSS OR JE...top ring down .350" at least witha 1/16, 1/16, 3/16 package...use a Speedpro Hellfire ring on top

balance it internally & use a jesel or gear drive with crank trigger for accurate timing

cam should be a split with #'s similar but lobe separation at least 116 or so

for all out strip do a 14 to 1 CR...more wont get you more power and 14 will help with maintenance

for every 100hp shot, pull out 3 deg of timing

what about a super charger?



thank you for helping

yes, i have one more qestion. could it hold a supercharger
or dose the second reply, "Here's a suggestion to get you in the ballpark" answer it.

Apparently you didn't read the description that Crane provided for you on the cam I showed. Naturally aspirated alone or naturally aspirated with plate nitrous for your present compression ratio. Recommend maximum 8.5 compression ratio with blower at 8 lbs. of boost with this cam.

It is not out of the question to run a blower at your present compression ratio, but the boost must be limited and the cam chosen carefully by the provider of the blower system. Here's a statement from Blower Drive Service about cam selection.

Choosing the proper camshaft would be the most important requirement for a blower motor. An improper cam will cause a variety of problems that can easily be avoided by following a few simple guidelines. Hydraulic cams are recommended if you intend to drive the vehicle frequently, requiring little or no maintenance, and the maximum engine RPM's are kept around 6500 or lower. Roller rocker arms are recommended. Flat tappet and roller cams are recommended for high performance applications especially where the engine will see high RPM's. Exact camshaft specifications vary depending on the performance level you wish to attain. BDS offers ten different types or stages of cam grinds specifically made for blower motors. Refer to camshaft specs listed in tech info for BDS' individual engine camshaft specifications and their intended uses.
If you wish to purchase your cam from one of the many fine camshaft manufacturers, we suggest using our camshaft specs as a guidline. Extremely high lift and long duration cams are recommended for high RPM, high performance racing only.
The lobe center of the cam will play an important role in determining the performance characteristics of an engine. Wide lobe centers (112 to 114 degrees etc.) will create higher cylinder pressure providing more horsepower with cooler burning fuel such as alcohol and methanol. We have found 110° lobe centers to produce the best overall power on gasoline.
Whatever cam you choose, make sure that it will operate and perform properly in the RPM range required for your application.

Here's more....
http://www.blowerdriveservice.com/camspecs.php