How fast can you go with a Magnum? Who has the quickest setup?
So it seems like a set of heads, cam/valve springs and the right intake can pretty easily get you into the 12s but how far can you go with this platform?
Minus oiling mods I'd say 6500 rpm's for safe operation. Head port flow limits. Valve train instability issues with extreme lift and rpm. Actual displacement limitations. (HP per CID.)
AKA, total HP per CID & also total engine, weight, drivetrain & chassis combo issues. The amount of power that can be built into the stock (or create) engines is limited. But that is the question now isn't it?
I don't think going into the 11's or less is a huge issues as it isn't the engine that has the only burden. But it has the highest hurdle to overcome.
Are we sticking with the OE heads & pistons or moving away from them?
From what I gather, the LA 360 has some advantages at the higher end over the 5.9 and I assume that the same applies to the 318/5.2. Have you found that to be the case?
I think there is an advantage to the earlier rocker arm set up. Stock head vs stock head, the LA ports out better from what I have been reading.
Also, if I have this right, there are only 2 aftermarket heads for the Magnum. 1 iron, 1 aluminum. There pretty limited vs. all out race heads.
Who has built a beast out of one of these motors? How did it go compared to other builds? Which bottlenecks show up first? At what level do you need to get into the bottom end of the engine?
1st 2 questions I can not answer.
The first bottle neck the Magnum engine faces is ether the heads port flow or the OE low compression ratio.
You'll need to get into the bottom end when cam specs exceed the stock pistons ability to handle ether the long duration holding the valves open or the lift limitations of the OE piston.
I do not know where this happens.
Alternatively, who is planning on building a monster and what's your plan for getting there?
Pipe dreams count?!?!
LOL!
I plan on use of a Magnum block but not the heads.