carpunk

im a bit confused over cam choice etc could somebody test this set up and advise output + any changes poss needed before it gets put back together.

fast road use traffic light drags lpg use i would like it at that point where you can drive it ok but anymoire and its getting serious.
aussie 351 +30 flat tops
aussie closed 2vs
ballanced crank/rods
ford motorsport roller rks 1.73
adj pushrods
mallory dizzy + coil
tri y headers (gennie)
arp rod bolts
p.a.w ssi cam (hyd)
@ cam intake .297 ex .297
@valve .514/.514 rocker s@1.73
cam @.006 intake 50 btdc open closes 78abdc sae dur 308
ex 78 bbdc closes 56 atdc sae dur 314
cam timing .050 intake open 8 closes 36 .050dur 224 lobe centers 104
tappet lift ex 47bbdc closes 5 atdc .050dur 234 lobe center 112
or suggest better please
anti pump lifters
matching springs
true roller chain set with 3 way key
alloy water pump
weiand x elorator 2v +holley 650 or impco 425 on 750 base
if some of yoiu could tell me expected outputs for this or/and advise any changes or settings that would be great

very gratefull thanks guys

xbgs351

What is the car, transmission and diff?

Racer

That is an old school cam with short duration (at .050) and long duration (advertised) and no lift. There are many better choices out there.

carpunk

thanks racer your the 1st person who knows what it is! caqn you tell me anything else about it? it came from paw (usa) advertised as street n strip i was advised to use this spec for lpg but maybe thats wrong?
have also been offered (see other thread) f246 solid crane wich appears great but i hear may cause me to buy more parts and junk some i have ??
sounds like i just need a good recipe using what i have but with a better cam
(may go to chi, heads later) any ideas?
many thanks

carpunk

(more interested in actual engine output)
but here you go as much as i know anyway
xy ute 9inc rear unknown ratio at mo
unknown comp 10.1>?
c4 unknown stall (will get one so please advise)
fuel possibly lpg but i guess if built for petrol slightly more crazy than needed should be fine adjusted for lpg?
again many thanks

cnj351

engine will have a 5500rpm 370hp torque 357 give or take with 10.50 comp
that on advanced engine simulation

carpunk

cheers cnj that doesnt sound so bad
was that on petrol or gas?
could you try swaping in some different cams please (your choice) see what happens
maybe a hyd version of cranes f246 if they do one?il leave it upto you
many thanks cnj

xbgs351

So:
Advertised Duration (0.006") = 308 degrees inlet/314 exhaust
Duration at 50 thou = 224 degrees inlet/234 exhaust
Lift at valve = .514" inlet / .514" exhaust
LCA = 112 degrees

Compared to a similar COME camshaft CLH 575

Advertised Duration = 282 degrees inlet/300 exhaust
Duration at 50 thou = 222 degrees inlet/234 exhaust
Lift at valve = .533" inlet / .562" exhaust
LCA = 112 degrees

The PAW camshaft has the same duration at 50 thou but a much higher advertised duration and less lift. It basically means it is slow to open the valves.

See the following article to see what that means:

http://www.4secondsflat.com/Cam_Design.html

Rhett

I was under the impression that adjustable pushrods were a big no-no? I can't remember why.

cnj351

ok i did 1 with 234 dur 244 at 50 lift 562. 588 hydr same comp 10.50
thats a blue racer cam n u had 374hp 5500rpm torque was 383 at 4500rpm
r your heads ported it good to no yes it on fuel that out of the engine n your
ex headers good to no cheer guys
do you want to tri mechanical u will mal out of it.....................?