im kinda surprised that the torque is so low on my dyno sim , a stock W puts out over 318lbs , of course its just a sim
I suppose our modeling programs are pretty different... Here is what I got on this one. I put an exhaust on mine, but very free flowing. (I wish mine was easier to post. It's alot of work to show it here. Even then it doesn't look very good when posted. Graphics are great in the program.)
Dang, only 456 HP! Well, I guess I will just have to live with it. Thanks for running that. I appreciate it!
This is my old setup & the new one that are being done now. Just want to compare to make sure i'm headed in the right direction. Thanks OLD SETUP 600 Holley air gap intake gt40 iron heads 1.6 roller rockers 3.55 gears stock manifold comp ratio 8 CompCam:31-418-4 custom grind flattapped Advertised Duration 270-4 int. / 280-4 exh. Duration @ .050 224 int. / 230 exh. Valve lift .501 int. /.512 exh. Lobe Separation Angle 108 New set up 650 holley hp air gap intake GT40 iron heads CNC ported 1.90 / 1.60 valves flowing 230 cfm int. / 175 cfm exh. 1.7 roller rockers 3.55 gears 1 5/8 shorty headers comp ratio 9.5 CompCam:35-425-8 Hyd. roller
Hey, I was playing with my program, so I threw this in. I need a great deal more info, but I just filled in the blanks with standard stuff, and left the variables the same for both tests. Also, I have a zillion Comp grinds, but they are not by part number. So, I just threw in a 281HR, which is fairly aggressive, but probably not the cam you have. Here is what I came up with, using limited info and filling in blanks.
hey ratio i also have engine analyzer but i have 3.3 and im still trying to figure it out but what do you get with my setup that i listed earlier, seeing if it compares at all with the numbers i got
Dave, what other info you might need? I was thinking I would be around the 350 hp range. I may not have a choice but to go with aftermarket heads. Dont know if it makes a dofference but I do have 2 1/2 exhast with MAC flowpath mufflers. I NEED MORE POWER PLEASE. There's never enough hp but I need more.
Here's what I come up with... Edit: For giggles, I threw a Vic JR intake on... seeing as how you don't make power to 3k anyway. It slaughtered the RPM after 3k. 20 lbs more torque and 30 more hp... throughout the 3000 to 6500 band.
my numbers were way way different than that i got 393 ft/lbs@5500 and 439 hp@6000 and averages were 346 ft/lbs and 317 hp
Wow! Those are huge numbers for a 306... Does your version have all the specs built in? Mine has an extensive list of any kind of aftermarket part you can think of. For yours all I had to do was pull down each menu and click the part you have. Your exact head, intake, carb, cam, and all were in there. The only part that wasn't in the menus by brand name and factory spec was the 6901s. However "long tube header, 1 5/8" primary, 34" long tubes" is in my menu, which matches. So there was no 'ad libbing' on my part. I think the numbers I got are much more in line with a 306 and those parts. IMO you would need much more radical parts and more rpm to make 439/393 with such small cubes. Never know though...
thats what i thought too i had to do a lot of inputting of numbers on my parts but all the numbers i put in i looked up factory specs for the parts
Try mine and see what it does: 85 302 T Bird stock block and heads Crane H-272-2 cam 484 & 512 lift, 272 & 284 adv duration, duration @ .050 tappet =216 & 228 Offy 360 intake [single plane] Holley 600 carb [vac sec] Hooker 6901 headers
My turn? 1968 302 .030 over, 10.25 comp, Comp cam 282s, edelbrock rpm's, speed demon 650, long tube 1 5/8, Scott
combo? Since my combo is a little different, would you mind trying it? .040 over 302, 308 inches, stock crank and rods, balanced flat tops, 10:1 compression 1971 351 Windsor heads, heavily ported and epoxied by Bennett Racing, probably one of the most heavily worked set of old Windsors around, 1.94/1.60 valves, double springs Lunati custom cam, 230/240@.050, 280/290 advertised, .523/.555 lift, 108 lobe seperation. 1.6 Harland Sharp roller rockers Edelbrock Performer RPM, 750 Holley, 2 inch four hole spacer 1 3/4 Hooker Super Comps, Jet Hot Coated, dual 3 inch exhaust, no bends. Full MSD ignition, distributor, coil, and digital 6 Any other information needed?
