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Search found 645 matches

by RCJ
Fri Jul 10, 2020 4:49 pm
Forum: Engine Tech
Topic: Best power steering fluid to quiet fussy pump
Replies: 3
Views: 191

Re: Best power steering fluid to quiet fussy pump

On our dirt late model you could not use over the counter p/s fluid. I used racing fluid from Sweet. It was noticeablely thicker. After a little research I tried 68 hydraulic fluid, it worked as good as racing fluid.
by RCJ
Tue Jun 23, 2020 8:21 am
Forum: Engine Tech
Topic: Dyno mufflers
Replies: 16
Views: 811

Re: Dyno mufflers

Several years back a friend and I came up with some 6'' diameter pipe. we decided to try and make mufflers for our trucks. We used 2 1/2 pipe and only extended it a couple inches in to the 6'' tube. We built H pipes and the entire exhaust system. Everybody was surprised how good it sounded ,it was n...
by RCJ
Sun Jun 21, 2020 8:49 am
Forum: Engine Tech
Topic: Dyno mufflers
Replies: 16
Views: 811

Re: Dyno mufflers

Building dyno exhaust also. I going to build a termination box inside the building with flex tube to attach to headers. Being in a rural area, the outside mufflers will the the simplest thing I can find. I have built mufflers before and the quietest was a heavy gauge pipe drilled full of holes runni...
by RCJ
Mon May 11, 2020 9:54 am
Forum: Engine Tech
Topic: Msd 8991 / French grimes timing light
Replies: 6
Views: 671

Re: Msd 8991 / French grimes timing light

Aaa are 1.5 volts.installed in series ,wouldn’t that be 9 volts
by RCJ
Mon Apr 27, 2020 10:00 pm
Forum: Chassis / Suspension / Body
Topic: How hot is the actual air expelled from center dividers on a brake rotor?
Replies: 11
Views: 637

Re: How hot is the actual air expelled from center dividers on a brake rotor?

If you found the lowest pressure area on the outer body of the car.This area would give the greatest pressure differential, also this area would have the least down force. You would also be drawing air from the underside of the car.Even if it did nothing to cool the brakes, BY eliminating a low pres...
by RCJ
Mon Apr 27, 2020 9:39 pm
Forum: Engine Tech
Topic: Anti-seize on spark plugs with aluminum heads?
Replies: 44
Views: 2053

Re: Anti-seize on spark plugs with aluminum heads?

I've read that the coating on the plugs act like anti seize. if you put anti seize on the plugs it inhibits the heat transfer,making the plug act like a higher heat range plug.If I do use some, it is a very small amount.
by RCJ
Thu Mar 05, 2020 8:03 am
Forum: Engine Tech
Topic: Engine Masters rod ratio test results
Replies: 151
Views: 12045

Re: Engine Masters rod ratio test results

We've tested the heck out of different rod lengths in limited class circle track engines. There are a ton of circle track classes that limit you to 358ci, stock stroke, a compression limit, and unported production heads. In these classes, Rod length is one of the few things that can be changed, so ...
by RCJ
Mon Feb 24, 2020 8:19 am
Forum: Engine Tech
Topic: Ir intake manifolds and carbs
Replies: 43
Views: 2505

Re: Ir intake manifolds and carbs

We are getting my little grandson (6 years old) in to kart racing.That have a tach called Mychron 5 ,it logs rpm ,gps lap time ,2 temps ,g force and has a play back feature.Its has a add on package that does 02 sensors.The base tach is $500.I don't know how it would transfer to a v8, but this is the...
by RCJ
Mon Feb 24, 2020 8:02 am
Forum: Engine Tech
Topic: Tightwad at wallyworld
Replies: 65
Views: 5067

Re: Tightwad at wallyworld

It was 20/50 Brad Penn vs 20/50 O'riellys house brand oil.When poring it out of the bottles you could see that the o'riellys was thinner. We were not monitoring oil temp ,so in hindsight I don't know how valid the test were. After the first test all other test are actually contaminated because there...
by RCJ
Fri Feb 21, 2020 6:09 am
Forum: Engine Tech
Topic: Valve Spring Tester/Checker DANG!
Replies: 9
Views: 1033

Re: Valve Spring Tester/Checker DANG!

Anybody ever try to build one using a load cell.I have a homemade checker that works very good, but a digital readout would be perfect.
by RCJ
Thu Feb 20, 2020 6:35 pm
Forum: Engine Tech
Topic: Tightwad at wallyworld
Replies: 65
Views: 5067

Re: Tightwad at wallyworld

We had found a low cost house brand oil that made 6hp more than brad Penn. During the second night the oil pressure dropped. Changed back at the track and the oil pressure came back. How it was explained to me was a cheaper oil starts with a lower quality base stock and pump it up with additives. Th...
by RCJ
Thu Feb 20, 2020 12:52 pm
Forum: Engine Tech
Topic: Tightwad at wallyworld
Replies: 65
Views: 5067

Re: Tightwad at wallyworld

My number 1 rule for oil is you get what you pay for. No 2 .Use the oil that is designed for what you are doing. Diesel oil in a diesel ,drag race oil in a drag car, kart oil in a kart... 3. Don't waste time dynoing oils 4. pick the weight by oil temp , bearing clearances by, .001 x journal diameter...
by RCJ
Tue Feb 18, 2020 10:20 pm
Forum: Engine Tech
Topic: Tightwad at wallyworld
Replies: 65
Views: 5067

Re: Tightwad at wallyworld

You get what you pay for. If you are having good luck with low cost oil keep using it.What the oil is doing is meeting your expectations and your motor is not stressing the oil enough to hurt any thing.You will see a difference in oil when you get out on the edge.
by RCJ
Fri Feb 14, 2020 10:45 am
Forum: Engine Tech
Topic: Piston ring question Napier second ring
Replies: 23
Views: 1413

Re: Piston ring question Napier second ring

How long does the napier ''Hook' actually last? I was dissembling an engine last night that I had no history with.I randomly put the top and second rings back in the bore to check end gap.The top ring was a little loose , as would be expected from wear.The second ring had over .100 gap.I can see the...
by RCJ
Tue Jan 28, 2020 1:19 pm
Forum: Engine Tech
Topic: Free - hi-tech 5-75 hp dyno
Replies: 19
Views: 1743

Re: Free - hi-tech 5-75 hp dyno

Have been wondering what happened on this myself. From the pixs the motor has a external coil and spark box.If you measure the voltage to the plug wouldn't that give a sense of the cylinder pressure.