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Search found 553 matches

by lefty o
Fri Dec 06, 2019 10:46 am
Forum: Engine Tech
Topic: Nitrided cams
Replies: 14
Views: 381

Re: Nitrided cams

Tuner wrote:
Fri Dec 06, 2019 10:40 am
Is this process AKA "Parkerizing", or is that a different deal?
nitriding and parkerizing are entirely different. parkerizing is just a phosphate finish designed to hold oil. nitriding is an actual heat treat.
by lefty o
Thu Dec 05, 2019 4:07 pm
Forum: Engine Tech
Topic: Rod strength
Replies: 35
Views: 1058

Re: Rod strength

in my experience, and i may be wrong, but in general powdered metal, or MIM etc, are all very strong in the direction they were designed to take force, but when force is applied in a different direction the stuff is fairly brittle. The cap gets cracked off on the direction the rod is loaded in the ...
by lefty o
Tue Dec 03, 2019 11:10 am
Forum: Engine Tech
Topic: Rod strength
Replies: 35
Views: 1058

Re: Rod strength

in my experience, and i may be wrong, but in general powdered metal, or MIM etc, are all very strong in the direction they were designed to take force, but when force is applied in a different direction the stuff is fairly brittle.
by lefty o
Mon Dec 02, 2019 8:43 pm
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 25
Views: 980

Re: Hemi vs Chevy wager...

Anybody that pay $24k for 650hp has more money than brains. That's just ridiculous. I guess he paid that so he can say it has a hemi? My money is on the Chevy. It started out as a lot less money... he bought the complete iron head 426 with single 4 bbl for under $12K add dual quad setup add new sol...
by lefty o
Mon Dec 02, 2019 2:05 pm
Forum: Engine Tech
Topic: Rod strength
Replies: 35
Views: 1058

Re: Rod strength

Rick! wrote:
Mon Dec 02, 2019 1:54 pm
lefty o wrote:
Mon Dec 02, 2019 11:22 am
rod being strong where they crack the cap, does not dictate rod strength as most would view it.
^^This guy gets it. It's a manufacturing operation, not a strength test. A few years ago, cracked cap rods were popular.
packardV8 explained it better though.
by lefty o
Mon Dec 02, 2019 11:22 am
Forum: Engine Tech
Topic: Rod strength
Replies: 35
Views: 1058

Re: Rod strength

rod being strong where they crack the cap, does not dictate rod strength as most would view it.
by lefty o
Mon Dec 02, 2019 9:53 am
Forum: Engine Tech
Topic: Hemi vs Chevy wager...
Replies: 25
Views: 980

Re: Hemi vs Chevy wager...

cant you just buy a 632 crate motor from gm that makes that and then some , and save a few grand?! :roll:
by lefty o
Fri Nov 29, 2019 1:28 am
Forum: Offtopic Forum
Topic: CRS syndrome
Replies: 4
Views: 212

Re: CRS syndrome

i was going to say something, but now i cant remember what...........................
by lefty o
Sun Nov 24, 2019 4:32 pm
Forum: Chassis / Suspension / Body
Topic: cheap chassis to save drag racing
Replies: 16
Views: 508

Re: cheap chassis to save drag racing

I would have thought a short dragster would be a good idea? ( I have one of course, 180" long :) ) When Junior Dragsters started there were a ton of new kids getting into racing. Dads who previously had no racing experience put their kids in JD. Well, when they turn 18, where do they go? If there w...
by lefty o
Fri Nov 22, 2019 4:39 pm
Forum: Engine Tech
Topic: New distributor gear...no roll pin holes??
Replies: 22
Views: 889

Re: New distributor gear...no roll pin holes??

travis wrote:
Fri Nov 22, 2019 4:37 pm
I called comp cams...some dude with a name I couldn’t pronounce simply said “you need to call Summit” and hung up on me :x
call center in india most likely. summit will take care of you, but no one representing comp should be an azz like that.
by lefty o
Fri Nov 22, 2019 4:33 pm
Forum: Engine Tech
Topic: New distributor gear...no roll pin holes??
Replies: 22
Views: 889

Re: New distributor gear...no roll pin holes??

easiest is to send it back and get another one that didnt miss QC.
by lefty o
Tue Nov 19, 2019 4:07 pm
Forum: Engine Tech
Topic: 72 corvette heads, manifold, and camshaft questions
Replies: 51
Views: 1315

Re: 72 corvette heads, manifold, and camshaft questions

my opinion is that you are looking at a mismatch. cam is in a decent ballpark for what you want, going to need a little more gear, and while the afr195 is an excellent head, its more than you need.
by lefty o
Tue Nov 19, 2019 3:22 pm
Forum: Engine Tech
Topic: What would you do if your motor was built like this?
Replies: 20
Views: 1473

Re: What would you do if your motor was built like this?

if those arent the pistons that were supplied to the engine builder, and they have suspicion he swapped heads, well i have a short temper and id probably knock the guys teeth out.
by lefty o
Sat Nov 09, 2019 2:11 pm
Forum: Engine Tech
Topic: Modern Engines & Static CR vs. Boost Levels?
Replies: 32
Views: 1063

Re: Modern Engines & Static CR vs. Boost Levels?

with small modern engines, it seems to me that most of them that run what was once considered hi compression for a naturally aspirated are now running 10.5-11:1 with a turbo to top it off, and what i see as the common denominator is direct injection. seems that being able to time exactly when a shot...
by lefty o
Mon Nov 04, 2019 12:31 am
Forum: Engine Tech
Topic: Pros/Cons of using aluminum ring harmonic balancer?
Replies: 21
Views: 760

Re: Pros/Cons of using aluminum ring harmonic balancer?

cant say as im an expert on them, but have run an ATI super dampener with the aluminum shell for a lot of years. have yet to see a downside. the pro's are it weighs less, so a little less weight in the car, and a little less rotational weight bolted to the end of the crankshaft.