Dyno Day question

[Wil Ferch]

Folks:
I'm facilitating our local club's Dyno day at a local shop. I was hoping that the shop would be in a position to measure air-fuel ratio as we do the various runs. It looks like they are not equipped to do this. Nor can they do CO readings ( which can be crudely compared to A/F via a generic table).
Any hints of what we can yet do to make this more meaningful ?

---Wil Ferch

[ttweed]

Ummm, find another dyno shop? I wouldn't pay to put my car on a dyno that couldn't give me A/F readouts for the whole run, myself.

YMMV,
TT

[tobluforu]

If any of the cars are turbo's, you will want a\f to be measured for sure.
My car is not a turbo, but I would still want to know. Find another shop.

[Bill Verburg]

Doesn't Joel Reiser live out your way? You might try contacting him for some direction

[ValveFloat]

This might help
http://www.dynojet.com/maps/autodynos/ny.htm

[kstylianos]

How about an LM-1 with an RPM pickup. Maybe someone locally has one.

If you ask the dyno shop, they'll usually provide you a floppy with the necessary data that you can import into Excel. Do the same with the LM-1 and you'll have your hP, torque, rpm and AFR.

[Wil Ferch]

Thanks for all the suggestions.....
---Wil

[tsuter]

Yikes is right!! Find another shop!

[Wil Ferch]

Well...did some searching and found a shop that met the criteria of being relatively close, can do A/F monitoring, and will give a flat unit price "per car" regardless of number of cars that attend ( helps guys like me who organize this sort of thing).

Still a problem...although rather minor, perhaps. The new shop uses a "Land & Sea " dyno , set up as an inertial unit ( like DynoJet248C)..but I have no reference as to what kind of numbers this unit spits out..and how comparable to 248C base-runs this might be.

So... anyone ( here?) ever run on both of these types of dynos with no changes done to the car in the interim ??

---Wil