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Search found 248 matches

by rebelrouser
Sun Feb 16, 2020 11:33 pm
Forum: Engine Tech
Topic: Tightwad at wallyworld
Replies: 61
Views: 2090

Re: Tightwad at wallyworld

I knew an engineer for BG products, and I was attending one of his seminars about carbon cleaning and oil additives. He had a slide that showed how much BG oil additives improved a list of popular oils, and how much longer you could run those oils after using BG stuff. At the very bottom of the list...
by rebelrouser
Tue Feb 11, 2020 8:51 am
Forum: Engine Tech
Topic: Question to carb tuners, booster signal ?
Replies: 2
Views: 379

Re: Question to carb tuners, booster signal ?

Just to understand how you guys are measuring booster signal, I take a carb jet and solder a small brass tube to it and hook the velocity probe from my flow bench the get a number on how hard the venture pulls on the jet. I have never seen any number from anybody else. I race a Chrysler in NSS so I ...
by rebelrouser
Mon Feb 03, 2020 9:08 am
Forum: Engine Tech
Topic: Porting question...
Replies: 14
Views: 1054

Re: Porting question...

No expert by any means, but the best runner is a slight taper in form. A head runner has a complicated shape, but I always went on the assumption that air doesn't like to expand and then contract. If you take out the guide boss on a stock head that is what sometimes happens. I used to p[ort several ...
by rebelrouser
Thu Jan 30, 2020 9:46 am
Forum: Engine Tech
Topic: Best oil for 6.7 Cummins
Replies: 21
Views: 613

Re: Best oil for 6.7 Cummins

I run T4 15w 40 Rotella in my 99 dodge diesel, 350,000 miles and still running great. Your 6.7 has the newer emissions package and just like cars, the tier 4 engines don't like the zinc and other wear additives, it fouls the catalyst in the after treatment. The T6 5w40 Rotella should work good. My m...
by rebelrouser
Wed Jan 29, 2020 8:38 am
Forum: Engine Tech
Topic: 318 Chrysler Assembly Questions
Replies: 12
Views: 597

Re: 318 Chrysler Assembly Questions

Most of the guys I build LA engines for are restorations and they always tell me I want it stock but I want a little lope at idle so it sounds mean. In my experience in using cheaper mild cams, like those provided by sealed power, or elgin for example, when they make them I guess they grind a stock ...
by rebelrouser
Mon Jan 27, 2020 9:10 am
Forum: Engine Tech
Topic: 318 Chrysler Assembly Questions
Replies: 12
Views: 597

Re: 318 Chrysler Assembly Questions

If the plugs have been removed from the oil galleries, make sure the one right below the distributor hole has been installed, other wise you will not have oil to one side of the engine. I learned that the hard way when I was 16 years old, and have fixed this issue on several LA engines others have d...
by rebelrouser
Fri Jan 24, 2020 9:52 pm
Forum: Engine Tech
Topic: Valve lift vs. port flow and cam selection
Replies: 86
Views: 3239

Re: Valve lift vs. port flow and cam selection

I have a homemade flow bench and it does OK. Some of the bigger big block heads I can not pull 28 inches on at max lifts. But What I notice is just by listening to the air you can tell a good port from a bad one. When you start to get the port right, it gets noticeably quieter, and a string pulls a ...
by rebelrouser
Wed Jan 22, 2020 6:35 pm
Forum: Engine Tech
Topic: Land and Sea Dynos????
Replies: 5
Views: 789

Re: Land and Sea Dynos????

I am sure they are still in business, I talked to them at their booth during the PRI show a few weeks ago. They had several dyno's on display. I have had trouble sometimes getting them to answer the phone as well sometimes.
by rebelrouser
Sun Jan 19, 2020 3:11 pm
Forum: Engine Tech
Topic: SB Mopar oiling mods
Replies: 10
Views: 632

Re: SB Mopar oiling mods

The only ones I do for a street engine is to drill the oil passages from the top of the main saddle to the lifter galley on the PASSENGER side of the block to 9/32. Do not drill passages to the cam. Do not restrict oil to the rockers. And just take a small die grinder and radius the oil feed passage...
by rebelrouser
Sat Jan 18, 2020 6:07 pm
Forum: Engine Tech
Topic: How much oil pressure
Replies: 3
Views: 573

How much oil pressure

Hope I can get some free advice. Finally have my engine back together. It is a 540 CID RB mopar, World product aluminum block, Edelbrock victor Jr. heads. Ohio crankshaft 4.25 stroke crank, and Ohio H-beam rods 7.1 inches long, they are BBC rods. Ross flat top pistons. Before it blew up from a broke...
by rebelrouser
Thu Jan 16, 2020 5:30 pm
Forum: Engine Tech
Topic: Mercury cruiser heads?
Replies: 7
Views: 467

Re: Mercury cruiser heads?

I only work on jet boats used in the local rivers, and like several have said make sure they are not so rusty as to have leaks in the water jackets. The jet boat guys suck up sand and mud which gets hung up in the water jackets both block and heads, so blow them with air and make sure they are not s...
by rebelrouser
Mon Jan 13, 2020 9:12 am
Forum: Engine Tech
Topic: Flexplate gap bbc
Replies: 12
Views: 454

Re: Flexplate gap bbc

I would go with the .093 gap as well. All that is needed is for the pump drive not to bottom out in the pump housing and tear metal off. Good converter that does not balloon and a ridged flex plate, you should have no issues. I am not sure how the converter companies jig their units before welding, ...
by rebelrouser
Sun Jan 12, 2020 11:30 am
Forum: Engine Tech
Topic: Plastagage versus bore gauge
Replies: 37
Views: 2015

Re: Plastagage versus bore gauge

My issue is putting scratches on the bearings with any measurement tool I have tried, snap gauges, inside mic, even dial bore gauge, which causes the least marks. Maybe I just don't have the skill? Main Issue I see with plastigauge is people who use to much oil on the bearings when checking, as it c...
by rebelrouser
Sat Jan 11, 2020 12:08 pm
Forum: Engine Tech
Topic: Engine swap ideas for a 1979 Mercedes 240D
Replies: 85
Views: 2530

Re: Engine swap ideas for a 1979 Mercedes 240D

A ford v-8, 289 302 etc. I think is the narrowest of the the V-8's several years ago I did a 289 into a Jaguar, fit really nice. I would say this would be the best swap. Not sure what part of the country you are in, but make sure it's old enough you can legally drive it. Federal emissions laws say a...
by rebelrouser
Fri Jan 03, 2020 1:05 pm
Forum: Engine Tech
Topic: Back cut valves...
Replies: 22
Views: 1343

Re: Back cut valves...

check out this link viewtopic.php?f=15&t=58997