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Re: 514 on the dyno [Re: AndyF] #804292
06/06/11 11:59 AM 06/06/11 11:59 AM
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Oregon
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AndyF Offline OP
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Here is what the spacer looks like with the shear plate installed.

6669267-ShearW.jpg (420 downloads)
Re: 514 on the dyno [Re: AndyF] #804293
06/06/11 12:11 PM 06/06/11 12:11 PM
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Odessa, Tx.
cudarex Offline
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Nice work Andy, as usual.
Re: 514 on the dyno [Re: AndyF] #804294
06/06/11 01:15 PM 06/06/11 01:15 PM
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
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@#$%&*! Offline
New user name, Same old jerk!
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Thigh-Gap Junction
Put a video camera in that plenum and let's see how it all really works.
Re: 514 on the dyno [Re: AndyF] #804295
06/06/11 04:49 PM 06/06/11 04:49 PM
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Mo.
racerx Offline
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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.
Re: 514 on the dyno [Re: racerx] #804296
06/06/11 07:32 PM 06/06/11 07:32 PM
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Oregon
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AndyF Offline OP
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Yep, that combo isn't going to fit under a flat hood.
Re: 514 on the dyno [Re: AndyF] #804297
06/06/11 10:07 PM 06/06/11 10:07 PM
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Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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Frostbitefalls MN (Rocky&Bullw...
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..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: 514 on the dyno [Re: gregsdart] #804298
06/06/11 11:04 PM 06/06/11 11:04 PM
Joined: Jan 2007
Posts: 1,169
MI
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68shifter Offline
super stock
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MI
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)
Re: 514 on the dyno [Re: 68shifter] #804299
06/07/11 01:26 AM 06/07/11 01:26 AM
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Oregon
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AndyF Offline OP
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No, I don't think I'd bother running without any spacer at all. That usually just kills the power.

I'm more interested in figuring out the difference between an open spacer and the hour glass shape that mates up with the Super Victor plenum. I had to have some spacers custom built with the hour glass shape because nobody sells that shape. I've used open spacers in the past with good results but I think the hour glass shape will pick up even more power.

It will be interesting to see if the extra height of these spacers helps or hurts the power. It will also be interesting to see if the different shear plates make any difference. I currently have three brands of shear plates to try out.
Re: 514 on the dyno [Re: gregsdart] #804300
06/07/11 01:30 AM 06/07/11 01:30 AM
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Oregon
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AndyF Offline OP
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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.
Re: 514 on the dyno [Re: AndyF] #804301
06/07/11 07:35 AM 06/07/11 07:35 AM
Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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 07:38 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: 514 on the dyno [Re: AndyF] #804302
06/10/11 12:25 PM 06/10/11 12:25 PM
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Oregon
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AndyF Offline OP
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I fabricated a slightly different mount for the dry sump. I'll probably end up using something like this. The double shear plate design off the Jesel cover seems to be strong enough but is fairly simple to fabricate.

6675959-pump.jpg (356 downloads)
Re: 514 on the dyno [Re: AndyF] #804303
06/10/11 10:06 PM 06/10/11 10:06 PM
Joined: Nov 2003
Posts: 399
SouthEast Michigan
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PETE@BESTMACHINE Offline
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That will never work in a car, has to be closer to the engine.

www.BestMachineRacing.com
Re: 514 on the dyno [Re: PETE@BESTMACHINE] #804304
06/10/11 10:14 PM 06/10/11 10:14 PM
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Oregon
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AndyF Offline OP
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Different width mounts are easy to fabricate. This one fits fine on the dyno and leaves me plenty of room for the lines. If I was building a car I would most likely need to move it tighter to the block.

I did design up a new low-profile block plate for the oil inlet. My new design is about an inch shorter than the previous design.
Re: 514 on the dyno [Re: AndyF] #804305
06/11/11 02:35 PM 06/11/11 02:35 PM
Joined: Nov 2003
Posts: 1,664
North Sweden
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RT540 Offline
top fuel
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North Sweden
I thought it would be easy to fit an autoverdi pump in a Haas chassi, but I am on my third test fit bracket, to get the AN12 fittings under the pump to fit, and still get some belt stretch working.
Interested in how much vacuum that new R4 design will give you.
Re: 514 on the dyno [Re: AndyF] #804306
06/11/11 05:47 PM 06/11/11 05:47 PM
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Posts: 167
mi
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dirty magnum Offline
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are you going to put that thing in a car so we cane see what it will do?
Re: 514 on the dyno [Re: RT540] #804307
08/07/11 03:43 PM 08/07/11 03:43 PM
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AndyF Offline OP
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I'll have the engine back on the dyno next week so we'll find out how the R4 pump works then. I also have a new Moroso vacuum pump to try out as well as some other new tricks.

6767886-lines.jpg (262 downloads)
Re: 514 on the dyno [Re: AndyF] #804308
09/03/11 02:30 AM 09/03/11 02:30 AM
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Oregon
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AndyF Offline OP
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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.

6808452-dyno.jpg (267 downloads)
Re: 514 on the dyno [Re: AndyF] #804309
09/03/11 11:21 AM 09/03/11 11:21 AM
Joined: Nov 2003
Posts: 2,131
New Lenox IL
cudadon Offline
top fuel
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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

http://i131.photobucket.com/albums/p314/cudadon/BKD6_09_10_191A.jpg
Re: 514 on the dyno [Re: AndyF] #804310
09/03/11 11:27 AM 09/03/11 11:27 AM
Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing Offline
master
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Northern Indiana
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

www.dunnuckracing.com
Re: 514 on the dyno [Re: cudadon] #804311
09/03/11 12:35 PM 09/03/11 12:35 PM
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Oregon
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AndyF Offline OP
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This spacer was designed for the Super Victor which is a partial clover leaf, but it would be possible to make the same type of spacer to work with an Indy spacer. Spacers like this are expensive to make though so I doubt I'll build anymore.
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