Speaking with Don today it seems that for my engine project the LT4 Hot Cam and from the close similarity of my motor to Vincent's engine the ZZ-9 both seem like much better choices than the current cam that is in the motor. I would just take your time like Kevin said and investigate a bit, ask other people that are running "close" to the same setup you are thinking of doing and getting their feedback on some ideas. If your project is special enough you can always consider a custom cam, of course that's only going to drive the price even higher
If you have the cam cards (or actual opening and closing degrees) for
each cam I can runs sims for you based on the engine data software I
have at work.
One big key to this is what you are actually looking for. big HP, big
torque, best 1/4 mile time. overall street-ability? first you have to
answer this. then move on to analyzing what cam is best for your
purpose.
You also need to know gear ratio and trans info to get proper operating
range for your setup.
The cam is the LAST thing you pic when building a car. Just because it
works in well in a Chevelle, doesn't mean that it will work in a
Camaro. (weight difference)
If you do have a contact that is running a similar engine combo that
cuts your research incredibly.
I would stay away from Crane. Comp has the best choices. TPIS has the
best that I've seen for TPI street use. Lingy's cams aren't dual
profile because most of his builds have heads that make up for the lower
efficient exhaust sides of most of the shelf manufacturers.
btw.........you need to have all your duration and lift specs at the
same point (usually .050" is the standard to adhere to) as i think on
the comps you list advertised duration which every cam maker has a
different way to get that number.
You might want to add the Cost of each of those bad boys, since I thought you were trying to build your "new" motor on a budget. That way people can give you a more of best bang for the buck recommendation on the Cams you've choosen. Just my $0.02.
If those are your three choices I'd pick the LT4 HOT cam. Cheapest price and most duration. Dont forget to check the price using our discount at Valencia Chevy.
The ZZP will not do as well as the LT4 hot cam or the 51010.
I software we use at work is a very advanced design that takes into account for more variables than the DD software can. You can also customize a number of factors.
Next I plug the HP and TQ curve into drag 2000 and base that on the weight and Cd I have for the third gens to get an idea of 1/4 performance with the same motor but with other variables changed, like CR's, flow rates on heads, cam changes, etc.
Wow! :hail: Wish I had all that soffware, not to mention the knowledge you guys have. Please keep posting about the results of the Cams because as things stand I am all set to swap mine out and would like to make sure I will get one that will keep me :rockon: and ing LOL
Dwayne,
I definitely thing the LT4 Hot Cam is the way to go, but the key thing I want to know is have you contacted Steve Spohn about this new motor yet?
You've murdered two torque arms with just your 305, what do you think is gonna happen with a 383, 6000 clutch dump.
You've murdered two torque arms with just your 305, what do you think is gonna happen with a 383/6000clutch dump
He'll be replacing the scattered T-5 with a T-56 and then the 9-bolt with a 12-bolt because he keeps blowwing the caps off it and gets tired of replacing ring gears
G80 is the code for posi-traction. Your code for the 3.08 gears should be GU4.
The crappy ratio in the 9-bolt is 2.77 . You could spend $500 and get a 3-series posi and a set of 3.45 or 3.73 gears for it from Miles, and have a nice almost bulletproof rearend that will last up to 11 second runs. Or keep using the 10-bolt 3.08...
')
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Scout master orders.
