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EMC builds are interesting, I think the SBC 23* valve placement isn't high enough either.

Anyone clue you in to what next years rules changes might be?

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I have spoken with Jesse many times on the phone this guy isn't afraid to think out of the box!Very honest no BS kinda guy. You guys did an awesome job and you should be proud!

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One question, what do you consider optimum adjuster angle?

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Once again, two schools of thought:
1. Maintain same range of angle change in the relationship between the pushrod & the adjusting screw from min to max lift (e.g. 15 degrees "under" to 15 degrees "over") to put them both on parallel planes at the mid-lift. IIRC, that's Miller's design.

2. Start out w/ the most out-of-parallel condition when the valve is closed and have them both on parallel planes at the peak lift where the highest spring loading is. From some of what I've seen, this might be what Jesel is attempting, but I can't say for sure.

Without going into all sorts of different types of specific measurements (impact on peak lift, impact on area under lift curve, stresses on adjusting screws & pushrods, etc.), I really can't say which is mechanically "ideal".

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Are you limited on what ring pac goes into each engine?

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Here's a shot of the engine that never made it. It featured MPI, crank trigger, Victor heads, ultra light internals etc.... J.Rob

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Here's a shot of the engine that never made it. It featured MPI, crank trigger, Victor heads, ultra light internals etc.... J.Rob

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What do you think that beast would've made? Also how big is it?

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...
One question, what do you consider optimum adjuster angle?

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Once again, two schools of thought:
1. Maintain same range of angle change in the relationship between the pushrod & the adjusting screw from min to max lift (e.g. 15 degrees "under" to 15 degrees "over") to put them both on parallel planes at the mid-lift. IIRC, that's Miller's design.

2. Start out w/ the most out-of-parallel condition when the valve is closed and have them both on parallel planes at the peak lift where the highest spring loading is. From some of what I've seen, this might be what Jesel is attempting, but I can't say for sure.

Without going into all sorts of different types of specific measurements (impact on peak lift, impact on area under lift curve, stresses on adjusting screws & pushrods, etc.), I really can't say which is mechanically "ideal".

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My thinking is that the more angle the adjuster is on, the side loading forces are increased exponentially. Add to that that the pushrod is literally trying to shove the rocker body into the shaft and lift the shaft off of the head as the lifter starts up the opening ramps on the cam. I would think that would create more load on the adjuster than what would be present by splitting the sweep angle between over and under the parallel plane. Don't forget about the additional harmonics incuced by the increased lateral movement of the pushrod. Think pole vault.

Hmmmmmmm!

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Jesse !! Can't believe I just saw this. Thanks very much for trusting our Firecore50 Wires and Mechanical Distributor. Great job having a backup engine ready to go. Can't wait to read all about the sessions. Rick Gorski. Huge thanks out to Ron Wilson for bugging you to try our parts. Thank you.

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Anyone interested in some IN-CELL dyno footage at the EMC? J.Rob

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Does a Shark $hit in the ocean ?

Yes, we want some dyno clips !!!



Ron

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Anyone interested in some IN-CELL dyno footage at the EMC? J.Rob

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Does a Shark $hit in the ocean ?

Yes, we want some dyno clips !!!



Ron

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What lifters did you end up using?

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I wound up using Johnson/Hylift rollers in a short travel design. Joe Lewis is the guy to talk to there. Best lifter for the $$$ out there. J.Rob

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What lifters did you end up using?

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I wound up using Johnson/Hylift rollers in a short travel design. Joe Lewis is the guy to talk to there. Best lifter for the $$$ out there. J.Rob

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how much plunger travel did those lifters have?

how much plunger travel did the original lifters have?

what style retaining clip were used in the Johnson style lifters?

any part number on the Johnson lifters?

since you said you used this cam in a previous build with solid lifters, i gather its a solid roller design lobe??

what lash did you run with the solid lifters?

when you had the stability issues, did you try the solid lifters before you had the Johnsons?

its interesting on the motor not liking any more cam advance than that.

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i am assuming that wthh the moving of the cylinder head and the angle milling of the head you had to redrill or elongate the cylinder head bolt holes

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