What do you think of this cam???

BKB

Registered User
J. DIAM: STD INT EXH
VALVE ADJUSTMENT HYD HYD
GROSS VALVE LIFT .548 .548
DURATION @ .006
TAPPET LIFT 263 273
VALVE TIMING OPEN CLOSE
@ .050 INT 5- 39
EXH 48 4-
SPECS FOR CAM INST. @ 112.0 CENTERLINE
INT EXH
DURATION @ .050 214.00 224.00
LOBE LIFT .317 .317
LOBE SEPARATION 114.0
ROCKER ARM RATIO 1.73 1.73 REQ

I really want 400rwhp and a very streetable motor. Car weighs around 3500 pounds, with 5-speed and 3.27 gears. Mods are stock SC bottom end, ported blower and everything else 15psi, Huge front mount IC, modified lower intake (roof raised 1'') 1.73 RR, 70mm TB, 89MM MAF, Tuner, 50lb injectors, Mac long tubes (this is in a Mustang) Mac 2 1/2 pro chamber, duel 2 1/2 tail pipes.

Head flow #s
Intake
.100 86.09cfm
.200 134.47
.300 174.99
.400 209.82
.500 228.99
.600 241.67
.650 245.73
Exhaust
.100 64.93cfm
.200 97.83
.300 118.79
.400 126.02
.500 149.71
.600 158.50
.650 160.90
.700 162.09
.750 164.44
.800 166.75
 
I know you are asking about the cam. .. But you put the Head Flow#'s in as well. And to say the least, you are going to need to heavily increase the exhaust flow #'s.

Anthony
 
Right now money is tight so head work probably wont happen. If anyone knows how much it cost to install larger exhaust valves let me know. I have e-mailed several places on installing 1.55 or 1.60 exhaust valves and no one ever got back to me.
 
That cam should work really well. I think your old one was 208 on both right?

And I'm assuming your heads were flow without the pipe on the exhaust, so to do an apple to apple comparison, add about 15% to those numbers when comparing to Coy, Steig or the other head folks.

Larger valves can be expensive. You need to have new seat inserts installed, a valve job done, pressure checking after the seats are installed and the valves themselves. Seats are about $6 ea ($36) and usually $5 per to install ($30). Then pressure checking is around $60, a partial valve job on the exhaust only about $75 and around $60-$75 for the valves. So... say around $275-$350 total. Not including any time to blend the bowls to the larger seats. Ferrea makes a 1.56" 6000 series SB Chevy valve that I used. It's about .125" longer than stock but adjustable rockers takes care of that.

As for needing more exhaust flow, that isn't an absolute necessity. By adding more exhaust duration, you'll get more flow through. Although it isn't the optimum solution, it will work better than a single pattern cam. But, you're not going to get 400 RWHP with a 214 cam unless you hit it with NOx. The cams to small to make top end HP. It will launch like a cannon though. With an M90, go for torque and forget HP. Torque wins races, HP sells motors. Aim for 400RWT and HP to peak around 5500 (which a 214 cam fits nicely).

Later,
Steve
 
Yes, old cam was a 208/208 .576 lift. If i were to get larger valves installed would i want the 1.55 or 1.60 using a stock bore? Also how would that cam work with the better flowing heads? Or should i really hold off on the cam untill i see if i can afford the larger valves.
 
Torque wins races, HP sells motors. Aim for 400RWT and HP to peak around 5500 (which a 214 cam fits nicely).

I hate that quote..I here it way to often..You need RPM and torque to win races..Because that my freinds makes HP!!!!
 
You don't need RPM if you have the proper gears.

You can accelerate as fast if you have high torque with low gears (#) then if you have high RPM with high gears (# wise) as long as the engine accellerates at the same rate in both cases, and have traction.

Jeff
 
Back
Top