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Re: 514 on the dyno
[Re: AndyF]
#804295
06/06/11 03:49 PM
06/06/11 03:49 PM
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Joined: Aug 2008
Posts: 4,212
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,212
Mo.
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Quote:
Here is what the spacer looks like with the shear plate installed.
I would  think u would need a pretty tall hood to fit the shear plate/spacer under.
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Re: 514 on the dyno
[Re: AndyF]
#804297
06/06/11 09:07 PM
06/06/11 09:07 PM
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Joined: Jan 2003
Posts: 10,207
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,207
Frostbitefalls MN (Rocky&Bullw...
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Andy,Any idea if the shear plates increase airflow? Or is it just improved atomization? I'm curious if they would help a constant flow injected combo go fast by helping airflow only.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 514 on the dyno
[Re: gregsdart]
#804298
06/06/11 10:04 PM
06/06/11 10:04 PM
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Joined: Jan 2007
Posts: 1,170
MI
68shifter
super stock
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super stock
Joined: Jan 2007
Posts: 1,170
MI
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Nice build!
Any chance of running it once without the spacer? You've done such a great intake comparison just has me wondering on the spacer as I hear all sorts of numbers for what they are worth.
What do you think?
Thanks again, keep up the good work!
68' Barracuda (4 speed)
64' Savoy (4 speed)
65' Satellite (girl tranny)
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Re: 514 on the dyno
[Re: gregsdart]
#804300
06/07/11 12:30 AM
06/07/11 12:30 AM
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Joined: Jan 2003
Posts: 31,344
Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,344
Oregon
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Quote:
Andy,Any idea if the shear plates increase airflow? Or is it just improved atomization? I'm curious if they would help a constant flow injected combo go fast by helping airflow only.
I'm actually not sure what the shear plates are supposed to do. I've talked to a bunch of different people and they all give me different answers. Some say it is anti-reversion, others claim that the shear lip helps with atomization. I've done some shear plate testing before without seeing any power difference so I'm not convinced that they even work on a low rpm motor like this one. Maybe I'll learn some more during the next dyno session.
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Re: 514 on the dyno
[Re: AndyF]
#804301
06/07/11 06:35 AM
06/07/11 06:35 AM
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Joined: Jan 2003
Posts: 10,207
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,207
Frostbitefalls MN (Rocky&Bullw...
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If my uneducated thinking is correct, With too little plenum volume and/or too small of a carb they may show airflow improvements? That would seem to be critical to some stocker applications? Fuel flow may become more consistent, improving atomization on the same trouble combos I describe?
Might be a good mag article.
Last edited by gregsdart; 06/07/11 06:38 AM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 514 on the dyno
[Re: AndyF]
#804309
09/03/11 10:21 AM
09/03/11 10:21 AM
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Joined: Nov 2003
Posts: 2,144
New Lenox IL
cudadon
top fuel
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top fuel
Joined: Nov 2003
Posts: 2,144
New Lenox IL
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Quote:
I also designed up a tapered spacer to work with the Wilson shear plate. We'll see how it works during the next dyno session.
That spacer looks nice. Would that design work on the Indy cloverleaf openings (400-3)?
Thanks, Don
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Re: 514 on the dyno
[Re: AndyF]
#804310
09/03/11 10:27 AM
09/03/11 10:27 AM
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Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing
master
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master
Joined: Mar 2007
Posts: 3,300
Northern Indiana
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Quote:
I had it back on the dyno all of last week but nothing quite worked out right. We tried different fuels, different carbs, different carb spacers, etc. Nothing seemed to make much of a difference. I'll have to sit and think about it for a bit. Hopefully we'll figure out what the hang up is and get back to making some progress.
When that many things don't make a difference,it starts to sound like a problem with the dyno. Maybe the fuel delivery(pump,filter)? If you were using the dyno ignition that is another place to look,just my 
Keith
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