Then install the ****** 4-6* ahead. What don't you get? What I'm saying is exactly what you are either too stupid to understand or you don't want to LEARN.
How does advancing the cam change the LSA and the overlap period?
We are talking two cams with relatively low overlap. If you can't make a 284 MP idle and be streetable you need to quit and go golfing.
Love golfing, sadly haven't been out for a round in a long long time.
You still have NOT explained why I can use 255 at .050 and get idle and vacuum that YOU can't? I posted my numbers. It's even on a 105 LSA. That's at least 5* ahead of what you think is the greatest thing since pussy.
I don't believe anyone is disputing you on this.
Cams have come miles and miles and it's stupid to contend that a ******* passenger car head needs anything wider than a 108 is pure ignorance. And YOU continue to preach ignorance. Youre so ate up by the numbers that you can't see the numbers. ******* crazy.
Now I'm going to post WHY comp, the crap company that it is, decided 110 LSA was the best thing since pussy and it had ZERO to do with performance.
As comp grew in size to the monolithic sloth it is today, they had to do what crane had already done...own a company that made cores. If you are grinding cams at the rate comp does, you can't wait on cores. I don't recall all the machinations that went on, but comp ended up either buy a core company or went into an exclusive contract with a supplier. Now comp had all the cores it needed, all the time.
Since most HFT and SFT cores are cast iron, they are EXACTLY THAT.....cast.
To make a core that will take that spread is very expensive.
If we are talking about cast cores and I believe you were--this is 100% false.
And, it takes longer to grind. Unless you are somewhere in the middle. So the marketing jerks got with the engineering nerds and THEY decided for COST and PRODUCTION that 110 LSA would be the de facto standard. Comp had now birthed, blessed and baptized the living abortion of the production LSA.
In 2016 and beyond, it has become almost impossible to get a core that will go tighter than 107.
Again totally incorrect. I have a SFT Mopar cam here on a 104 LSA. When I inquired how tight I could go my contact @ Comp told me I could have it on any LSA I wanted right down into the 90's.
106 is a push. Anything narrower than 106 and you are pretty much **** out of luck,-See above. unless you are somebody who is somebody.Believe me I am a nobody. Engine builders no longer want to spend time trying to reeducate the customer from 3 decades of marketing stupidity. So they give the customer what he wants, even though the customer, most of whom are just casual with the hobby, have no ******* idea what they want, let alone what they need. Sadly this is frequently the case, but that's what we're here for right?
So engines are underachievers, and all the fools applaud and say bravo to an engine that is down on power, down on torque, has the torque curve too wide and makes RPM like a flat head ford. Never saw a flathead Ford turn 5800+ Yes, bravo indeed.
The LSA triangle is the single most misunderstood, misapplied and abused function of cam timing I can think of. And that's because it starts with your CYLINDER HEADS. Nothing else. If you can't make that connection, I can't help you. Every single cam event is based on YOUR cylinder heads, induction and exhaust system. Agree here but how you have prepped your heads to minimize reversion is not what sparked this discussion.
With that in mind, I take BACK my comment for the OP to use the 284 MP cam. F-T-P says it will never work, so therefore, it is so. Again you stated that the OP could stick that POS 284 MP cam in and have the same or slightly better idle quality with more power. I took this to mean in his engine as is cam for cam with his cylinder heads NOT prepped by you. 2 things--1. It will idle worse on account of the now much larger overlap triangle. 2. It will make less power probably everywhere--especially down low.
I will go back to what I always have said. Buy a CUSTOM CAM. Agree again if the customer is open to it. Don't get ate up by the LSA if it is more narrow that what the brainwashed masses claim is de facto. Rise above their ignorance. The earth is NOT flat. Never was. You have been duped by production oriented manufacturing and Madison Avenue pukes.
It's time to leave the dark ages of cam timing and get to the light.
