Jesel 440-1 paired rockers, what oiling?

Indy makes the valve covers.

spray bars on mine too. The cooling effect on the springs must work because my valve springs last a lot longer than I thought they would with a big roller cam.

Spray Bars on my wedge Cab. I ran standard Indy Oiling then I had the heads CNC ported and had them milled for the jesel stand and system. I couldnt stand to pay $400+ for the oiling spray bar system, so I set out and made my own...
I ran this top end on a stock 499 short block, then built a real engine to put those on. Indy Maxx block...
I dont know how many pass's over a period of several years it had, but my stuff looked great. I know some have trouble, but I think the Jesel Cup on the adjuster, and ball end to ball end pushrods is the best.

Sorry for reviving a thread from the dead, but I'm trying to figure this out. I'm having to go to my "spare" motor due to a nitrous "incident"...

Megablock motor - I put on my 440-1's and Jesels. I have the spray bar setup from the other motor, but this motor was previously pushrod oiled, has 829's and hollow 7/16 pushrods. We fired it up, 100# of oil pressure cold (keith black pump) - about 70 warm, motor sounded great. I thought all was good...

Until I broke a Jesel shaft - the prevailing though behind the breakage is that in our hustle, we think we installed a shaft upside down (bolt recesses facing down) - at least I hope it was human error - we really don't know because it took out the shaft... Regardless, the result was a humungus drop in oil pressure to about 5# even though the lifters stayed in... Luckily it was at low engine speed - no bearing material.

Now I am paranoid, there is obviously not enough restriction in the oil feed to the lifters to prevent destruction should I have another valvetrain incident. Thoughts ??

On my mega block / 440-1 I have pushrod oiling via MRL lifters and hollow pushrods, PLUS the Indy head oil supply for the HS shaft rockers. I have 0.090 restriction in each cyl head oil feed line. Seems to be working OK so far but I do not know how the rocker roller tips get oiled.

Well I spoke with Jesel, they actually recommend going to pushrod oiling versus the spray bars. I guess my concern is really limited to just how much oil I'm getting up top - it's a bunch. !

This s JMO.. but I have played with a lot of TD rockers
but in a drag car I think the spray bar is a waste of oil.
if you run(lets say 9 sec)then the springs should be able to
handle the PR oiling that directs the oil to both sides of the
rocker to lube the rocker and the left over to do any spring
cooling... the single shaft oiling works very well but might
need a restriction in the supply to the shaft(basically if yo
have full time oiling you will) but the part time might want
just a little more slot in the bearing to add oil.. spray bars
by themself is asking for a shaft issue(lack of oil) and I dont
think I would ever run 2 systems to oil(either PR and spray
bars or shaft and PR and or spray bars)

I pushrod oil my paired T&D's on my -1's. The pushrod holes are big, over .100". The most oil pressure it could get was about 45 psi@7000. Ended up restricting my comp tappets. The holes were plugged with epoxy. Then the hole opposite the lifter bore orifice was drilled to .040". Been that way 2 years. Bearings look great (checked at 100 and 200 passes). It runs 65 psi @7100 with 5w30 royal purple. The adjustable pump relief screw is backed out about .250" from where it was before the tappets were restricted.
Doug

Doug,
Are you saying the 0.040" hole is exposed to the oil galley in the lifter bore? That is how mine are setup too.

I wonder if the stock large lifter hole on the side not exposed to the oil galley would work (no hole or plugged exposed to the oil galley).

I like how you did that plug Jim... did you get a
increase n pressure with that... also how big is the
hole in the galley.. I have bushed lifter bores with
a .062 hole... also do your lifters have the EDM hole
in the roller area... I think between the hole in the
side of the lifter and the EDM hole and using PR oiling
I get a pretty good loss at the lifter... I might try
the plug idea

Those are brass plugs and I used a 0.032" bit to drill the hole. The lifter oil galley is a typical large opening (not bushed). I never ran this motor without the plugs/holes so I don't know what effect it has on oil pressure. I don't think these lifters have the pressurized oiling to the roller wheel bearings, they are a little older than that (1 season use, but sat on the shelf).

No, the oil hole next to the galley is plugged. The hole on the opposite side is .040". Though not near as zoomie as yours.
Doug

I run bushed lifters, a .060 hole in the bushing, lifter holes are Comp with the hole 90 degrees from the lifter. Never looked at the hole diameter on the lifter. Pushrods are always full of oil, and with the added oil from spray bars everything looks great. I have restricters in the fittings on the outside of the valve covers.

Thanks Doug,
I bought a rebuilt set of offset lifters from a guy and they don't have an oil hole on the same side as my KB block oil galley. From your experience, they should work just fine. I guess there is enough pressure all around the lifter to oil thru the pushrods to the heads. The rockers don't need that much oil anyway (that is why all us racers are restricting it).

I'm going to put it to the test, I plugged the hole facing the oil galley. I'm going to fire it up tomorrow and see what I get.

Well, looks like it worked out great, 80 psi, just enough oil up top using the holes opposite the oil galley and the ones facing the galley closed. Was going to head to the track tomorrow - even bought a fresh set of M/T's, and now I have a rear main leak. !!!!!

Can you please tell me what did you use for the restrictors in those lifters and how difficult was it to fit them ?

I'd like to update. Since My last post I failed a needle bearing in one lifter (829 Comp 320/800 psi springs). They had 200 passes. There was nothing in the restrictors that wounded the lifter that I can see. Water soluble epoxy was used. A small amount was placed in the oil feeds then one hole was drilled .040". However I did notice that the epoxy that was used did not stay bonded to the metal. The epoxy "slugs" were loose in the lifter itself. They were trapped and could not exit. But I didn't like the fact that it was loose. Probably should have used JB Weld or a similar product. The pushrods and rocker surfaces all looked like new.
Doug

None, bushed lifter bores no holes... just spray bars with Jesel components.

Absolutely NO problems in the 15 years running this combo.

Oil spray is enough!