New Mule at the Dyno

This is a ZZ4 shortblock with AFR 195cc heads and a custom Erson cam.  Its role in life is to be a test valvetrain equipment I am developing.  The next step is a SB2.

What's it going in when I'm done with testing?  A storage unit.






 

491hp 442torque on a zz4 short block....nice build. cant beat the afrs. are the afrs out of the box or did you guys do any work to them? i wish it was in my storage unit. nice build sheets.  

that is one sweeeet r&d tool  
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the red-headed step-child of the mailing list

fuzzy dice, air shocks & N50's rule

We flat milled the AFR heads down to increase compression (I think 57cc chambers was the end result) and then opened up the spring pockets for the PBR springs, but that was all.  

nice, good luck with r&d. wish you guys were based out of flint,michigan. another shop would be nice.  

this is peace...

i have a dyno question..    has anybody every mounted their entire dyno on a tilting floor.. so you can duplicate the cornering forces for circle track racing..

i would think that depending on the track.. that the right side of the carb would be richer do to the fuel angle from cornering forces...   noting is more important than getting power coming out of the corner..

i don't get to many circle track races.. so i don't get to ask the race teams..     i would think that putting a camera in a car looking at a dash mounted clear plastic box part way filled with colored liquid.. to see what the forces are at each track in the different corners..     you could even use it to recreate the oil levels...  

Formula and Le Mans teams have these test rigs, and I'm sure NASCAR does as well:

http://www.youtube.com/watch?v=mfuleS9rnzc

Obviously, that's big dollar stuff.  I think the budget version would be to take a couple webcams and watch your fuel bowls through turns.  If someone made glass float bowls, it would be neat to mount a dummy carb on the dashboard, fill it with mineral spirits, and watch the sloshing during turns (like the fluid test you described).

Either way, good baffles should cut down on sloshing, and testing different jetting configurations at the track would help the team feel for how lateral g-forces affect fuel enrichment.  

Put a Holley on it and you will most likely get more power.  
Professional hi-performance engine builder

Horsepower sells Engines and torque wins races.

We tried a QFT (Holley) and a Demon, but the Edelbrock was just easier.  In any case, valvetrain stability is more sensitive to RPM than horsepower for this type of engine.  

Actually, a cheap El Camino or Nova might be cheaper than storage.  Or even a rat rod.  

I'm sure plenty of guys will donate a storage car if they get to drive it  

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Professional hi-performance engine builder

Horsepower sells Engines and torque wins races.