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#1
11-25-2012, 01:25 PM
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"Happy Holbrook" Dyno and Track Comparisons
I put together information from posts here on PY and actual info I’ve received from the participants. Attached is a break down of engine size, car weight and dyno info. All comparisons used the same formula, the data is correct for comparison purposes only, I don’t have the actual track temps and DA, but that’s the great thing about Norwalk, it becomes the true equalizer.
I also posted data from the 2011 heads up race including Marcella’s small engine and Rick Johnson’s info as I know Ricks car and dyno info. I also know the dyno information used by Rick has been backed up at the track by no less than 4 or 5 other cars. I projected the weight by 6.75lbs, if any of this information is incorrect, please provide it and I will update the data. * I also projected out Marcella’s 2012 engine taking consideration for his transmission issues, based on his 1/8 information and projected his ¼ MPH to match Kinsler’s. Based on this info, I would say Holbrooks dyno was about 40 to 50 HP high when Marcella’s small engine and Mike Leech’s engine were tested. Marcella would need to run 156 MPH @ Norwalk in the same conditions to back up the dyno results from his 2012 engine showing 960 HP on the track. Calvin Hill Hill Performance 708-250-7420 |
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#2
11-25-2012, 01:33 PM
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Are you taking into the calculation the loss of " power" from the auto trans and a loose convertor ???
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#3
11-25-2012, 01:36 PM
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Calvin, how can you compare Dyno Numbers on Holbrook's cell when you have no Dyno Temperature, Barometer, or Humidity (Wet/Dry Bulb) information in your analysis? Your data means nothing.
Tom Vaught
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#4
11-25-2012, 01:42 PM
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Quote:
As you know being around NHRA class racing, the Stock and Super Stock cars can really cheat the ruler with the right convertor. Calvin Hill Hill Performance 708-250-7420 |
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#5
11-25-2012, 01:50 PM
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Quote:
The dyno numbers were corrected at the time of the dyno. If you look at Leech's numbers and Marcella's small motor numbers, only 3 HP variation between the two test from the test to the track. Lets not argue about 20 or 30 HP, but Marcella's big motor isn't even in the same time zone when comparing dyno numbers to actual track data even with me projecting his 1/4 MPH off his 1/8 MPH. btw, my data has the same cars running on the same track with the same ci to weight, don't tell me the data means nothing. Calvin Hill Hill Performance 708-250-7420 |
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#6
11-25-2012, 01:51 PM
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Picketts wagon has a 430 c.i. engine
Picketts coupe has a 445 c.i. alum.engine Ken |
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#7
11-25-2012, 01:53 PM
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Are they both running Liberty transmissions? Thanks, Tom Syron |
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#8
11-25-2012, 02:06 PM
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John's car was a rush job to make Norwalk, to compare it to proven sorted out cars isn't really fair. Now if by mid summer John's car isn't running the expected numbers you can poke fun at his performance.
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#9
11-25-2012, 02:09 PM
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Thanks for updating me, I'll make the corrections,. Would you be willing to share the dyno info? Calvin Hill Hill Performance 708-250-7420 |
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#10
11-25-2012, 02:10 PM
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Quote:
Calvin Hill Hill Performance 708-250-7420 |
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#11
11-25-2012, 02:17 PM
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Calvin can you post the formula that you are using?
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#12
11-25-2012, 02:21 PM
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NORWALK 2013, Go Big or Go Home.
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#13
11-25-2012, 03:22 PM
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Quote:
__________________
First Pontiac powered street car in the 7's 7.940@170.84. 3460#s |
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#14
11-25-2012, 03:33 PM
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Don't jinx yourself Jack.
 I mean the bust part!
__________________
68 Firebird Are you running with the wind or breaking it? |
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#15
11-25-2012, 04:01 PM
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LOL, put your calculator down. You dont have any real info on my car anyway. I have had the car out 1 time sense Norwalk. Only 1 pass to the stripe, in and out of it 4 times and lean as hell ( 14.0 on the o2) 9.30 @ 157.4 LOL , Not a good pass.LOL I could not leave the line with the radials, or get enough fuel in the motor, (new carb). I dont know what you are trying to do but i can assure you you dont even have half the information to do it accurately  At least with my car. Because i dont.And 2011 i was 160? over weight, and had the same phucked up trans in it.
__________________
John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
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#16
11-25-2012, 04:15 PM
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Quote:
Leech did not run in 2011, so comparing his 2012 to my 2011 is crazy  Plus my times in 2011 in the 1/8 dont jive with the 1/4. Trans????? My junk is so spun out that the best glimpse that i have for track performance is 1/8 mile MPH compared to Jeffs car on the same day. I had 1+ mph on him to the 1/8 at norwalk when we look at best to best. Pretty dam sad, at this point i have crap for usable info, so how can you have usable info? Oh-your data means nothing
__________________
John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
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#17
11-25-2012, 04:30 PM
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#18
11-25-2012, 04:32 PM
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The data I provided is the data I have. Do I need to go back to 2011 and pull the MPH and weight on all of the cars? Kinslers 2011 MPH was posted as was Rick Johnson's. I spoke with Chris Holbrook last year about dynoing a few more engines, I really don't care as much about the actual number as much as if it is repeatable. I'm not knocking your car or your work, but where is the HP? Even at 157 MPH in the cool fall air has t shown the power. So how far off is that dyno or is it spot on? Are your numbers and track times consistent with the engines you have dynoed? Is that dyno repeatable? Seems to be conflicting reports from you and Tom V. Calvin Hill Hill Performance 708-250-7420 |
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#19
11-25-2012, 04:37 PM
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I understand. Must be those Liberty transmissions making all the extra power! Hats off to you guys with the Picketts program. Calvin Hill Hill Performance 708-250-7420 |
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#20
11-25-2012, 04:46 PM
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Me and my car are that far off. At this point i can even look at the dyno #s. I have not even made 1 pass at full throttle all the way down the track  Give me a chance to get it sorted. 2011 my car weighed 3085. can you run that across you calc i would like to know?
__________________
John Marcella Marcella Manifolds Inc. john@marcellamanifolds.net ph. 248-259-6696 |
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