LS Cam Challenge Cam Cards And Dyno Sheets

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Күн бұрын

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@glennborek2359 Ай бұрын

Great videos Eric , I am somewhat of a novice building engines for horsepower . I am a club member and I purchased a set of cylinder heads, Jessel shaft rockers , custom grind cam and lifters from Eric for my SBC 427 , when you do business with Eric, he will give you his undivided attention. I sent him an email, just a question about piston to valve clearance figure he would get back to me in a day or two. I sent the email when I was standing in the kitchen of my house and before I got to my living room chair, he called me immediately with an answer. You’ll be hearing from me again for more parts. Thanks Eric 👍

@samstewart4807 Ай бұрын

hi eric, You are givng people a great deal. You should not have to defend the prices you are charging. EVERYTHING you showed here is very fair and straight forward.

@Terry_Ford1a1 Ай бұрын

Great job Eric! Never got any in depth info like this before. When i get off work im definently going to calculate the dynamic compression ratio on all of these. Keep up the amazing work and will support the SBF test for sure.

@kennethpruitt8534 Ай бұрын

Back in the day when I built a motor, I'd sit forever going over manufacturers cam specs before choosing. It was probably more miss than hit. Now that I'm 70 and most my toys are gone except my 08 Vette with bolt ons and tune I can't tell you how much I've enjoyed being a backyard mechanic again making by own picks based off your data. Yes, I contributed but, just like I can't tell you I've enjoyed this I also can't explain it to my wife who thinks I'm nuts. I look forward to the SBF challenge and will contribute again. In the meantime, I'll enjoy your videos, and I've also latched on to Danny Powel who just seems overflowing with knowledge. Wish I'd run into someone of these guys when I was in my 20s.

@realazliving Ай бұрын

Thanks. I have the cards already but thought I’d leave a comment. I ordered the SBF one too. I like all the engines no matter who makes them. Thanks for the hard work and good luck on the next one. I really enjoy your straight shooter way of explaining things. Sometimes it seems you feel people don’t believe you or something. Just ignore those people and the trolls. You have an excellent channel and 95% of us don’t need you to tell us you are telling the truth, aren’t cheating, or bsing us. Hey I need some iron e7te heads ported. I do that right? If there ends up being enough donations for more spaces I’d love to enter and send you a cam.

@Adrenacyde Ай бұрын

If more spaces open up, I'd like to have one ground and run through the Lie Detector as well. Also, if he starts doing an E7 program, I am ***IN***. 😆

@davidwickboldt712 Ай бұрын

Thank you. This was a lot of work on your part.

@riggedandjimmiedgarage7268 Ай бұрын

I'd be interested to see a aftermarket cathedral port heads dyno test

@Thumper68 Ай бұрын

Didn’t get to see bottom of Brian salters sheet

@ThomasELeClair Ай бұрын

,,,,,,,,,,,,,,,,,SBF,,,,,,will be something unreal.................lots to learn....................thanks Eric.....................

@xozindustries7451 Ай бұрын

Great job on the cam test, I hope you’ll do a big block 540 test some day, I’ll do a donation for that for sure

@abdullaalameri90 Ай бұрын

Thanks for the spread sheet

@Matthew-uj4zx Ай бұрын

Very interesting results. Before looking at the specs, a big split between intake and exhaust duration seemed to be what the engine wanted. But second and third place did not have a large split. Tight lobe separation (more overlap) seemed to do well, then a couple cams with 112 and 114lsa did well.

@realazliving Ай бұрын

@@Matthew-uj4zx yes there was a lot of data and different types of cams did well. It’s interesting to look through.

@bretbauer7582 Ай бұрын

There is only one winner folks, and it did so by a big margin.

@Matthew-uj4zx Ай бұрын

@@bretbauer7582 NK performance didn't win by a big margin in any single category, But to place 1st in all 4 categories is a huge win. Top effort

@rolandotillit2867 Ай бұрын

What I want to see, is that now that the cat is out of the bag, and everyone understands what principle gave the best results, if the next challenge will have people converge on a particular type of cam depending on whether the intake or exhaust side is the bigger bottleneck in the system.

@gagemosley8365 Ай бұрын

Never been second before on a youtube comment section

@timtaylor6147 Ай бұрын

So after seeing this I feel a lot more confident with the cam choice for my 454 Lunatic 240hr On a 108 Installed at 104.5 No offset on the gear The cam dialed what the card said

@timtaylor6147 Ай бұрын

I'm using a gear drive So I was surprised that the cam dialed straight up

@jameswhitesell3076 Ай бұрын

Never been first before on a youtube comment section

@AndrewReiwitch-sw9lf Ай бұрын

Can't say that again!! 😂😂🤪 (Firsts..)

@robertfontaine3650 Ай бұрын

From what I can tell the big winner focused on a restricted exhaust and most of the rest were very tightly bunched which isn't really a surprise. Although I'm sure that the players had a good time as a spectator I haven't learned a lot. Use software, use 20 years of experience, use rules specific to this engine block, but not much discussion on generalizing how to measure engine flows and match the cams to it. Hopefully someone will take this on.

@crd-nz_001 Ай бұрын

My take away from only a single look. Valve closing event @0.050 - closer to 40°ABDC improves low and mid torque with a loss of top end hp. Nk Performance cracked 670hp with the intake closing at 43°ABDC due to lobe design (gets the valve open and holds it open longer at higher lift points) so scored both low/mid torque advantage by having a higher trapped mass without cutting the top end off that comes from closing the valve early.

@realazliving Ай бұрын

@@crd-nz_001 yes I go with around 40 is a street motor, as you go to 50, 60, 70 it becomes more race and less street drivable. Also you need more static compression to go with later closing.

@ViperMods_216 Ай бұрын

Do you port cast iron heads? 😂

@krusher74 Ай бұрын

or make a graph!

@The0utmode Ай бұрын

Do you port Flat Head engine blocks? lol

@WeingartnerRacing Ай бұрын

If I made a graph you wouldn’t be able to see which cams are which they would almost bleed together

@WeingartnerRacing Ай бұрын

If I put all the cams on a graph it would be almost impossible to see the difference. There are graphs in the data people can buy.

@rolandotillit2867 Ай бұрын

Well Vizard was right, 108 lobe centerline angle did the best, what he got wrong was the profile of the exhaust lobe, who knew getting more out of the biggest bottleneck in the system would give the biggest gains. Real eye opener.

@optimumperformance6998 Ай бұрын

Are you referring to Intake lobe centerline or Lobe Separation Angle (LSA - LCA) ?

@rolandotillit2867 Ай бұрын

@@optimumperformance6998 LSA, my mistake.

@optimumperformance6998 Ай бұрын

@@rolandotillit2867can you explain how a 115 LSA came in 5th, a 113 LSA came in 13th in front of his 108, at 14th, if it has any merit at all?

@rolandotillit2867 Ай бұрын

@@optimumperformance6998 Look at the winner 108.5 can you explain that? Again, the LSA affects torque, because it affects overlap, in 4 valve engines the LSA is controlled by cam phasers. Is there more to selecting cams than over lap? Sure. The biggest difference was in the exhaust lift and duration, because the exhaust side was the bottle neck.

@optimumperformance6998 Ай бұрын

@@rolandotillit2867proper event timing at the valve and lobe shape for this specific application and test parameters. Bobby, who designed the winning lobes, and the lobes on multiple cams in this competition explains this in his own video. He does not look at LSA, that is just a result of a properly designed cam for a specific application. I will ask again, how does a 115 LSA cam with less lift come in 5th? Which part is important? LSA / Overlap or events at the valve and area under the curve?

@brandonrohrer7914 Ай бұрын

You could make a dyno idle clips of cams that sound different. That could be cool.

@doomman700 Ай бұрын

I do port cast iron, no I won’t do anyone else’s heads.

@sean5comet Ай бұрын

Bigdogs Porting Tony B will do cast iron heads

@slows102 Ай бұрын

What was the setup on this motor?

@WeingartnerRacing Ай бұрын

408 Ls promaxx large bore ls3 heads 11.45 to 1 super Vic intake 1000cfm carb.

@slows102 Ай бұрын

@WeingartnerRacing ok. Thank you. I'm actually almost finished my 408 with 12.8:1 dss pistons but I have the liberty ls3 heads. Hoping to make close to 700hp. Cam is a martin smallwood nitrous spec cam .254 .276 on a 113 or 114.