superstock top end combo

[sj valley dave]

Propit, we ran that 00308 Crower as per Bill Hendren's suggestion a few years ago..We ran Crower S/S 1.7/1.6 combo and ended up with .608/.586 lift combo on a set of Dart 215's that had been slightly rolled over. It would pull hard up to the 8200 chip, did not nose over...I would as Dave Bauer suggested, get a smaller carb, a Super Vic, keep the 220's on it or switch over to the Darts and run the 00308 and you will be a happy camper..IMO

[propit21]

sj dave-so you are saying that 00308 cam will work in a 383 with 220 worlds just fine. Do we need to run a 1.6/1.5 rocker combo or the 1.7/1.6 combo.

Perfconn- do we need to get a special grind cam with the number you recommend because i can not find those number for any off the shelf cam. If so i read on here you perfer comp cams would that be the cam maker of choice. also what else beside the carb would we need to make sure we have to make that combo work. we have 1.5 rockers on both int/ext right now.

let r eat- why is the hurrican manifold bad, ive heard ok things about them, don't mind getting a new manifold but just wondering what makes the victor jr so much better

with the combo we have now are we overflowing what our motor can do at lower rpms? If i understand correctly we are not producing any torque at lower rpm with the motor combo we have because it flows to much fuel and air and not getting rid of it fast enough unless we turn more rpm's?

[Egoracing]

Not the Victor jr but the 2925. It is one of the best overall intakes for a small block that uses 23 degree heads. We have dyno'd them on 350ci motors with .450 lift to 430+ci roller cam motors and it tested the best out of 10 intakes on every engine we tried it on.

[perfconn]

Yes,Comp Cam is the only cams I use.A custom ground cam is the same price as a shelf cam so why use a shelf cam.Normally only takes 2-3 days and you have a cam thats right for your engine.You can order a cam for whatever rockers you have.They have lobes from the low threes to five hundred.

[propit21]

can you pm me or tell me in this forum what i spec i need to tell them i want. i am learning here and don't want to screw things up which i do alot haha. Thanks for the help again.

[sj valley dave]

If you do run the 00308 I would suggest the 1.7/1.6 rocker combo...We went with this when Hendren suggested the cam...We played with some different rockers combo's on the dyno when we had the 360" built and that combo worked the best...

[perfconn]

Before I can give you lobe numbers I need more information like carburetor size,stainless or titanium valves,rocker ratios,compression ratio,intake runner size,maximum rpm.

[propit21]

ok we have options since we are doing complete rebuild of the motor and are going to buy some new parts.

Perfconn- heads with be the motown 220 head with 64cc chambers, carb size will be eaither a 950 cfm or 750 cfm which we are in the process of building, we will run whatever carb works best for what track we are at. compression of the motor is close to 13 to 1, stainless steel valves, max rpm will be 7800. The engine will get a new victor jr or super jr intake manifold also we are using a 1 inc wilson manifold tapered billet spacer. the motor is on gas.

Went to the shop today and did some digging around and found a cam that we had in another one of our motors. And turns out its a comp cams 12-657-5 which has a lobe sep of 106, int/exh at 050" 256/262, valve lift of int/exh 0.549/0.543 and valve timing at 0.02. Was wonding if this is the cam we need and if so can we use it again with new lifter or do we need to get a new one with new lifters and all from comp? Do we need to get new rocker arms because we have 1.5 on both int/exh or do we get 1.6 or 1.7s?

We also have a 355 motor we are putting back together and going to be using some double hump heads that have been ported and polish. We are going to go with the 00308 cam from crower with that one. it seems like it will be a good combo to go with. With the 355 do we neeed to go with 1.6 or1.7 rockers as well or will 1.5 be fine.

thanks for the help guys.

[perfconn]

Degree the intake lobe in on 102* and use a new set of lifters on the Comp 12-657-5

[C10]

I wouldnt change the cam personally at first. I would change that God awful hurricane pos intake, and get a better carb. The Vic jr, or Super Vic will really change how that thing behaves in the upper rpm.

[let-r-eat]

sj dave-so you are saying that 00308 cam will work in a 383 with 220 worlds just fine. Do we need to run a 1.6/1.5 rocker combo or the 1.7/1.6 combo. Perfconn- do we need to get a special grind cam with the number you recommend because i can not find those number for any off the shelf cam. If so i read on here you perfer comp cams would that be the cam maker of choice. also what else beside the carb would we need to make sure we have to make that combo work. we have 1.5 rockers on both int/ext right now.let r eat- why is the hurrican manifold bad, ive heard ok things about them, don't mind getting a new manifold but just wondering what makes the victor jr so much betterwith the combo we have now are we overflowing what our motor can do at lower rpms? If i understand correctly we are not producing any torque at lower rpm with the motor combo we have because it flows to much fuel and air and not getting rid of it fast enough unless we turn more rpm's?

The cross section on the Hurricane is too large. Made for drag racing. Also its not good in stock form.

[propit21]

i know am bringing this up again just wanting to learn and get what will work the best. Here is a cam spec that i have been looking at and wondering what might be the result of running on our engine set up. Again this a is a 3000 lbs superstock 3 link car on gas, motor is a 383 with lightwight bottom end, 6 inch rods, 7 cc domes with 220 world motown heads, going to get a super victor or the one inch taller one and it will be either on a 950 cfm hp holley or 750 cfm hp holley. 7800 rpm chip rule, track is normal dry and dusty for the main tight corner 3/8mile track.

cam specs
duration at .050 int 258/ext 262
valve lift int .570/ext 5.80 thats with 1.5 rockers but will more then likely run 1.6 on the intake?
lobe center 106*
ADV duration int 286*/ext 290*

@ .050
intake open 23 btdc exhaust open 57 bbdc
intake close 55 abdc exhaust close 25 atdc

[DANNY]

Propit21- I would take Terry's advise and not limit yourself to an "ok" cam rather then the cam that will do what your motor needs. As Ego and others said get a 2925 intake and a 2" HVH super sucker. Your runnin WCSS rules right?

[propit21]

Yes we run wuss rules. This cam is real close to what he recommends I believe. This is an isky camshaft. We have a real nice Wilson manifold tapered spacer already. What makes the super victor so much better then the hurricane. Just want to make the right decisions and not keep spending money for unneeded parts.

[sj valley dave]

The 2925 has a smaller CSA with longer runners than the Hurricane. Will work better on a circle track deal almost always...