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Search found 260 matches

by Racing68
Wed Jul 01, 2020 4:35 pm
Forum: Engine Tech
Topic: BBC oil restrictors
Replies: 10
Views: 260

Re: BBC oil restrictors

I'm using a canton 13-334 with 10778 melling pump and 10-30 oil in my 505 with no issues. Your pan is very similar to the one i'm using but my pickup is only 5/16 from the bottom of the pan. I've never run one that far from the bottom and that could be the issue.
by Racing68
Tue Jun 30, 2020 1:53 pm
Forum: Engine Tech
Topic: BBC oil restrictors
Replies: 10
Views: 260

Re: BBC oil restrictors

What part number pan? Avoid restrictors if possible since it will see highway driving, you will need more oil to the springs to keep them cool during long running periods.
by Racing68
Mon Jun 29, 2020 5:40 pm
Forum: Engine Tech
Topic: Fuel system architecture question (mechanical pump / filter)
Replies: 20
Views: 394

Re: Fuel system architecture question (mechanical pump / filter)

I always put filters on the pressure side of the pump. Had a customer put one on the suction side and promptly burned a hole threw the side of the head on a blown alcohol sbc once. Changed location and no problems since.
by Racing68
Sun May 24, 2020 11:57 pm
Forum: Engine Tech
Topic: Rocker arm ???
Replies: 18
Views: 1097

Re: Rocker arm ???

I'm using the Elgin black ice long slot rockers at .540 lift and 7400rpm with good results in my circle track builds. I replace them every 40-50 nights and rarely see a failure.
by Racing68
Sun May 24, 2020 11:52 pm
Forum: Engine Tech
Topic: Mark IV BBC cam bearing orientation
Replies: 7
Views: 440

Re: Mark IV BBC cam bearing orientation

Durabond CH12B has a grove machined in the back of the bearing already if you want to save some time.
by Racing68
Wed Apr 29, 2020 4:38 pm
Forum: Engine Tech
Topic: Scat I beam 3/8 rods
Replies: 4
Views: 496

Re: Scat I beam 3/8 rods

I've used them in 10+ engines that turn around 6800-7200 with no problems, but these all had light pistons and under 420 horsepower. Mainly factory stock dirt engines and mild street builds.
by Racing68
Tue Apr 07, 2020 6:34 pm
Forum: Engine Tech
Topic: 8mm Stems and Keepers
Replies: 13
Views: 879

Re: 8mm Stems and Keepers

Switch to a ten degree retainer and keeper.
by Racing68
Tue Mar 31, 2020 3:42 pm
Forum: Engine Tech
Topic: Wrist pin into the second land.
Replies: 24
Views: 1584

Re: Wrist pin into the second land.

If it's a N/A application could you put the piston .060 out the deck with a .100 Cometic gasket. That would give you a little more room to fit the ring pack. I've done this on antique pull tractor builds to add a little more stroke.
by Racing68
Thu Mar 19, 2020 12:04 pm
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Re: Diagnosing damage

Nothing to indicate any butting of the rings top or second. I have not checked the gaskets yet but it's a felpro mls gasket i will check that later today for water port alignment. Clearance was set at spec plus .0012 extra i'll check what it is now also
by Racing68
Thu Mar 19, 2020 9:54 am
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Re: Diagnosing damage

No egt's just a pair of wide bands 12.5-12.8, plugs looked good no speckles and fuel ring looked good. Running Brad Penn 20-50 this past season and using a pan heater. Mezzere elecrtic pump and small radiator with fan starts pull at about 150-160 and ends around 195-200. No burnt oil on any pistons ...
by Racing68
Wed Mar 18, 2020 10:30 pm
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Re: Diagnosing damage

Wet sump, Moroso 20485 double kickout pan, melling anti-cavitation pump. .0032 mains .0028 rods. It holds steady oil pressure 80-82 psi on the dyno all the way to redline during a 200 rpm/sec pull about 14-15 sec total time for the pull. I did one pull like that to see if it had any pressure loss ov...
by Racing68
Wed Mar 18, 2020 4:48 pm
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Re: Diagnosing damage

From the pulls i watched he was on the rev limiter several times in each pull anywhere from a quick touch to a couple of seconds duration. Yes center counter weight callies magnum. Runs a MSD 7 AL3 with HVC 2 coil. This is a single carb, NA, with 15.5 cr on gas making about 1050 hp, limiter is set a...
by Racing68
Wed Mar 18, 2020 12:42 pm
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Re: Diagnosing damage

It's 15.5 cr on VP c-15 gas. The bearings are coated. There is a pan heater for the oil and it the engine is warmed to 150 before the start of the pull.
by Racing68
Wed Mar 18, 2020 11:54 am
Forum: Engine Tech
Topic: Diagnosing damage
Replies: 13
Views: 1039

Diagnosing damage

This is a 590 BB Chevy pull truck engine that just came in for freshening. I've watched some of his pulls and the truck bounces down the track loading and unloading and bouncing off the rev limiter at 8400 on almost every pull may have something to do with this or tuneup is off i don't know for sure...
by Racing68
Mon Dec 16, 2019 1:11 pm
Forum: Engine Tech
Topic: Info on Penn Grade 1 oil
Replies: 8
Views: 548

Re: Info on Penn Grade 1 oil

So you learned nothing new, then? From your previous post on the subject, it's been stated here before that ARG wasn't providing their base stock any longer and that they were using a different additive package because Lubrizol discontinued whatever they were using previously. Since you got no conf...