CGT wrote: ↑Sat Oct 13, 2018 12:06 pm Detonation=bad for power and score
Out of control valvetrain= also bad for power and score
Piston rings, bearings, etc with extremely accurate dyno pull activated fuses that initiate destruction= unicorn $hit
Also...im out^2(off to break more records) but possibly could be right back
FACT^
And MOO
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Winner Of The Race Engine Challenge
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Re: Winner Of The Race Engine Challenge
Re: Winner Of The Race Engine Challenge
We're off to a truck pull to test a new carb.Warp Speed wrote: ↑Sat Oct 13, 2018 12:26 pmCGT wrote: ↑Sat Oct 13, 2018 12:06 pm Detonation=bad for power and score
Out of control valvetrain= also bad for power and score
Piston rings, bearings, etc with extremely accurate dyno pull activated fuses that initiate destruction= unicorn $hit
Also...im out^2(off to break more records) but possibly could be right back
FACT^
And MOO
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Hope my dyno queen 421 survives another pull.
Not sure we'll set any records, but I hope our new carb works great ^2 LOL
I may be out or in,.... not too sure yet. LOL
Randy
Re: Winner Of The Race Engine Challenge
I have some old 78's and some 45's I could send you if your into breaking records... May even have a "Queen" album you can break!.CGT wrote: ↑Sat Oct 13, 2018 12:06 pm Detonation=bad for power and score
Out of control valvetrain= also bad for power and score
Piston rings, bearings, etc with extremely accurate dyno pull activated fuses that initiate destruction= unicorn $hit
Also...im out^2(off to break more records) but possibly could be right back
FACT^
And MOO
tenor.gif
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THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
Re: Winner Of The Race Engine Challenge
Sorry for this but just wanted to verify how the scores are calculated. Best HP from 3 dyno pulls, add together than get avg. Take that figure, multiply by 1000 then divide by the cubic inch of the engine. Is this correct?
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Re: Winner Of The Race Engine Challenge
NO ...
For the REC scores; (the EMC is different);
Best AVERAGE HORSEPOWER from 4,000 RPM to 7,500 RPM for the best 3 pulls. Times 1,000 divided by CID.
PEAK horsepower is not figured in the score anywhere.
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Re: Winner Of The Race Engine Challenge
If peak is between 4-7500, I believe it is figured into the score! LolWalter R. Malik wrote: ↑Sun Oct 14, 2018 3:42 pmNO ...
For the REC scores; (the EMC is different);
Best AVERAGE HORSEPOWER from 4,000 RPM to 7,500 RPM for the best 3 pulls. Times 1,000 divided by CID.
PEAK horsepower is not figured in the score anywhere.
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Re: Winner Of The Race Engine Challenge
Then it would suggest what is the incrementals to figure the 'average' HP numbers?
Every 100 RPM, 500 RPM, 1000 RPM?
Every 100 RPM, 500 RPM, 1000 RPM?
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Re: Winner Of The Race Engine Challenge
Every 100 RPM increments.John Wallace wrote: ↑Sun Oct 14, 2018 6:01 pm Then it would suggest what is the incrementals to figure the 'average' HP numbers?
Every 100 RPM, 500 RPM, 1000 RPM?
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Re: Winner Of The Race Engine Challenge
I bought Scott Mains 2nd place 400 block from emc a number of years ago and we went to do a clean up hone and the cylinders were so far out we had to open her up some more. The only running it had was test runs and emc. A ton of stress from what i seen. I beleive the any dyno runs are the hardest times a engine sees. My dyno operator always says he takes the best life out of everyone's engine.
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Re: Winner Of The Race Engine Challenge
If peak is between 4-7500, I believe it is figured into the score! LolWarp Speed wrote: ↑Sun Oct 14, 2018 3:57 pmFor the REC scores; (the EMC is different);
Best AVERAGE HORSEPOWER from 4,000 RPM to 7,500 RPM for the best 3 pulls. Times 1,000 divided by CID.
PEAK horsepower is not figured in the score.
[/quote]
OK, sarcasm wizard, PEAK horsepower is merely 1/36 th of figuring the final score.
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Re: Winner Of The Race Engine Challenge
I remember the late great Joe Sherman saying about his winning engine that he did Many, many dyno runs in testing, then either refreshed or maybe put the whole combo into a fresh block for the Challenge.Steve.k wrote: ↑Sun Oct 14, 2018 6:28 pm I bought Scott Mains 2nd place 400 block from emc a number of years ago and we went to do a clean up hone and the cylinders were so far out we had to open her up some more. The only running it had was test runs and emc. A ton of stress from what i seen. I beleive the any dyno runs are the hardest times a engine sees. My dyno operator always says he takes the best life out of everyone's engine.
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Re: Winner Of The Race Engine Challenge
I beleive Joe was on the right track. My own 436 we put 29 pulls on it testing various combos. Did the same as joe.That engine of Scotts was hard blocked to 1" below deck to. I couldn't believe how much that old block moved.Im sure these new blocks move less.
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Re: Winner Of The Race Engine Challenge
OK, sarcasm wizard, PEAK horsepower is merely 1/36 th of figuring the final score.Walter R. Malik wrote: ↑Sun Oct 14, 2018 6:35 pmIf peak is between 4-7500, I believe it is figured into the score! LolWarp Speed wrote: ↑Sun Oct 14, 2018 3:57 pmFor the REC scores; (the EMC is different);
Best AVERAGE HORSEPOWER from 4,000 RPM to 7,500 RPM for the best 3 pulls. Times 1,000 divided by CID.
PEAK horsepower is not figured in the score.
[/quote]
But still part of the figuring none the less!
Re: Winner Of The Race Engine Challenge
I disagree. dyno time is probably the easiest time an engine gets.Keith Morganstein wrote: ↑Sun Oct 14, 2018 6:38 pmI remember the late great Joe Sherman saying about his winning engine that he did Many, many dyno runs in testing, then either refreshed or maybe put the whole combo into a fresh block for the Challenge.Steve.k wrote: ↑Sun Oct 14, 2018 6:28 pm I bought Scott Mains 2nd place 400 block from emc a number of years ago and we went to do a clean up hone and the cylinders were so far out we had to open her up some more. The only running it had was test runs and emc. A ton of stress from what i seen. I beleive the any dyno runs are the hardest times a engine sees. My dyno operator always says he takes the best life out of everyone's engine.
Our 2011 short block has never been apart. Probably has 450 dyno pulls on it now. Been in my nova for some racing, been in my brother's dragster several times. Last time I had the heads off it still looked fine. Could still see the honing marks.
Our 2017 engine had well over 100 pulls on it, and it still looked fine when they tore it down after the contest. It got put right back together at the shop with no new parts but gaskets.
And if it's for a pulling truck, the dyno time will absolutely be the easiest time the engine sees.
Dyno time is a walk in the park compared to a season of pulling.
Randy
Re: Winner Of The Race Engine Challenge
Truck pulling seems way harder on equipment than I've ever seen. Drag racing compared to dyno runs. Nope.