302 (5.0) help

[woofer700]

just got the reply from comp cams.
After looking through your information I suggest one of our XTREME ENERGY series cams. Here is the part number for the cam I have suggested (35-246-3). I recommend that you change you valve springs and lifters if you are interested we here at Comp Cams can put kits together. Just let me know? I will list the specs on this cam below. If you have any questions feel free to reply or call our tech line. Have a great day.
NOTE: You either will need to use a very mild cam or put this cam on a 112 degree lobe separation angle to increase your vacuum.

INTAKE MASTER 5445
EXHAUST MASTER 5208
ENGINE FW XE274H-10
GRIND NUMBER FW XE274H-10
INT EXH
HYDRAULIC Y/N YES DUR @.050 230 236
INTAKE EXHAUST LOBE LIFT .3270 .3270
VALVE ADJUSTMENT HYD HYD ROCKER RATIO .00 .00
MAX GROSS VALVE LIFT .519 .523
DUR @ .006 TAPPET LIFT 274 286 LOBE SEPARATI 110.0
ADVANCE 4
VALVE TIMING OPEN CLOSE VALVE SPRINGS 986-16
.006 INT 31 63
EXH 77 29
THESE SPECS ARE FOR CAM(S) INSTALLED
106.0 INTAKE CENTERLINE



For more information about any other COMP CAMS product, please feel free to contact COMP CAMS at 1-800-999-0853 or at COMP Cams - Performance Camshafts, Valve Train, & Much More
Thank you for choosing COMP CAMS


COLE VENTRONE, 901-795-2400 Ext 534
Technical Consultant
Competition Cams

 

[Zookie400]

sounds like a pretty aggressive cam, you going to run it?

 

[JLDickmon]

gonna have to have them custom grind it to 112* or so lobe centers?

 

[f100cleveland]

I have an engine building program that will tell what the vacuum should be with that cam even at different lobe centers. I'll try it tonight if I get a couple of spare minutes.

 

[woofer700]

this cam looks pretty good, i just might run it. hey someday were gonna have to get togather for a beer. this is way cool, the help is amazing. just need to figure out what rods to run, stroke, pistons, and start the process of building this thing.

 

[f100cleveland]

Did a few other combos with cams and you would have to go way below .500 lift with alot less duration to get 17 inches of vacuum. This is with the cam spec'd out to you.

 

[JLDickmon]

Did a few other combos with cams and you would have to go way below .500 lift with alot less duration to get 17 inches of vacuum. This is with the cam spec'd out to you.

did you run it with the cam advanced 4 degrees?

 

[f100cleveland]

did you run it with the cam advanced 4 degrees?

That is the dyno sheet with 4 degrees. Did a few more with different heads and cam profiles but 250hp with 15-16 inches af vacuum is about it with his restrictions. I think the hp numbers are a little low with this program cuz I compared it to a couple of engines we had real dyno sheets on and they are higher, but the vacuum reading were just about right on.

 

[f100cleveland]

Did another one with Comp Cams off the shelf 268 and it came up with 280hp and 17 inches of vacuum. It might be right but you can't trust this engine program 100 percent.

 

[woofer700]

i will most likely run roller rockers (1.6) going to check into porting also. gonna need to build strong bottom end for sure. I have asked some questions to the person that built my fe block, about heads, will see what he says.