Do it ur-self 1.6:1 /6 rockers
Well, I for one wouldn't mind seeing you toss that set on after a couple passes,and get a real
-time mph read to see. Also I would be a bit careful in your comfort level with "avg." HP springs
with the higher boosts. Remember 20#+ of boost times the area of the backside of your int.
valve could easily mean 40-50# of load trying to unseat your valve against say, a 110# seat
load spring. You can do the math so..... also as noted in mopars books, the lift rate is just as
impacting as rpms are to valve/spring stability/ability.
Sadly, I am aware that one of the cox bros. passed away, I am not sure if there will be any
more rockers from that outfit again. I may make that phone call next week if nobody chimes in
with an update...... I don't recall the $ at the time for those, were they at least more reason-
able? I mean, I don't mind dropping the coin for top parts if they perform on par w/my invest-
ment,accuracy-quality-reliability wise.
This is not rocket science. I am just one old (REALLY O-L-D) guy, trying to have a good time and embarrass a few Corvettes... LOL!
If I were building an NHRA Competition Eliminator car, and had serious aspirations about setting a national record, I'd be going about it totally-differently, but, my plan is to just see how much bost I can shove into this thing before it blows up (and, it will...) but, I am not totally oblivious to trying to do it "right." For example, you have a
really good, valid, point about boost affecting valve spring pressure, and I WILL address that issue, for sure.
But, my advice (and, nobody asked,) is, just build your own 1.6:1 rockers; it really isn't hard at all if you can weld, and if you can't, hire it done; it's not that expensive.
But, an experimental engine with a much-longer duration cam MIGHT work well, and could make the 1.6 rockers a moot point. The potential for mechanical variations on this forced-induction/slant six theme are endless.. We haven't even scratched the surface.
For someone with more smarts than I, EFI is an obvious choice... carbs just don't go well wiith blow-thru, because that was never a part of their DNA...
The best part of this whole exercise, is the rewarding way slants respond to boost, even when a moron like ME fools around with it; It is just SO rewarding.... even in my ignorance.:cheers: