Oil recommendation retro fit hydraulic roller 400 SBC 500+hp
- Thread starter RickSBC400
- Start date
So does yours! 👍🏻
OVERKILL
$100 Site Donor 2021
Nope, we don't have any test data for it, the new Ultra or the EaO unfortunately. Just the advertised specs.
Forgive me if I asked this already, but do we have any efficiency data for the Merc Racing filter?
I didnt see one.
I'll try to find my C&P - It was like a royal purple/ EAO so my guess would be it basically what they are.
The stock merc BBC filter is a joke - I compared these two a few years ago for the boat guys, I'll see if i can dig it up.
OVERKILL
$100 Site Donor 2021
97% @ I assume 20 microns (doesn't explicitly say), so not quite as efficient as the EaO or RP, but pretty darn close. Looks like a great filter!
Other than the seam… wonder why they didn’t use a metal crimp.
OVERKILL
$100 Site Donor 2021
Thermal weld, you see that on some of the synthetic filters.
Yeah, I've seen it and know what it is. But on a filter that is surely premium cost, it would be nice to see premium construction throughout.
Looks like a HD SP5 - if they are build the same that seam is a double fold and glued... it aint coming apart.
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This filter certainly isnt the best I've seen.
At the time I notes this efficiency test Merc referred to HS806 was not the standard I was used to seeing.
Double foot... folded over media? Not sure what you meant. Please explain.
Dang it.. Double fold its like a Z flattened...
I use Baldwin filters in everything I own. I order them from Application Associates.
Hans was a well known lobe designer. In the 80s Super Shops owned Erson (& Mallory) located at the Carson City location, hired Tanzi to make or break the Erson brand. The lobe selection at the time was dismal, so Hans was paid to design about 400 new Berco masters.
Due to the fact Erson & Mallory pulled a trailer to all the national NHRA events to service magnetos, Erson cams ended up in many of the cars that were running Mallory mags. Fuel cams wear quickly, on the exhaust side especially, opening the valve against high pressure from the late burning fuel, so cam and magneto service went hand in hand. Records were set over and over with the .375s lobes, not because they were agressive, but because they were stable and didn't beat up the valvetrain, with instant "idle to full rpm" of blown fuel engines off the line. The big cam cores
"grew" the lobe durations a couple of degrees so a 296 @ 50 intake lobe would measure out to 298-300ish. The exhaust duration on fuel cams were usually 4-6 degrees less on 111-114 LCAs.
Fast foward 10 years, in 2004 #2 guy at Erson, John Steele went to Oshkosh, WI to make or break Howard's Cams. A year or two later Erson was a dumpster fire.
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I can tell you had some inside experience....
Tanzi would have ground 5 degrees advance into that 242/254 cam because he liked to put the intake L/C @ 108 on just about everything.I can tell you had some inside experience....
In that case your timing card would read Int; 13/49 exh; 65/9
Direct injection engines should be less sensitive to overlap. Remember you read it here first.
I agree, Steve initially did want to cut it with less separation. But at the time, my brother was convinced he was going to be racing it frequently (VIR is nearby) and spraying every time, so after some discussion Tanzi relented and said since it was going to be bottle-fed all the time he could justify the low-end loss of torque because of the lack of advance. He still suggested the possibility of advancing it 2 or 4 degrees with the timing set... like a Hex-A-Just or belt drive.
Is he still around at Lunati or DYK?
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I am not sure, but fram its the ph30 or 30 ending numbers.
OVERKILL
$100 Site Donor 2021
Looks like it crosses to the:
LF3679
Which does not have a synthetic media upgrade option, nor does Donaldson (I checked them too).So, your best option may be the Mercury Marine filter @UncleDave mentioned unless you want to pony up for the AMSOIL EaO, which is the EAO24 if you want a part #.