GeorgeC

There are only a couple of shops in town with dynos, and the one closest to me mainly does work with imports, and has no available time that coincides with my work schedule. I found another place here in town, and took the car over there this afternoon. It's not the typical Dyno-Jet chassis dyno, but a Clayton eddy-current dyno. I'm not the most dyno savvy guy around, but supposedly the eddy-current dynos have quite a few advantages over the Dyno-Jet.

Anyway, the owner of the place asked me to change tires before coming over, since he said he's run into some issues with cars with wrinkle wall slicks, since they tend to bouce around a bit more than a radial tire would.

Anyhow, to make a long boring story short, after 3 attempted pulls beginning @ 50mph in 3rd gear, we were never able to keep the rear tires from literally smoking on the rollers. It looked like the car was doing a damn burnout there on the dyno. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

From what we can tell so far, I'm a little on the lean side @ idle and just off idle/light part throttle. The WOT blasts we did show the car a tad on the rich side, but not terribly so. I'm taking the slicks over tomorrow and see if we can get some traction so I can get this thing dialed in a little.

Anybody know how well typical eddy-current dyno numbers correlate to Dyno-Jet numbers? I'm shooting for a target AF ratio of ~12.8:1 or so. I am going to try a few little changes (other than LS1Edit tuning) while there, such as !mufflers, !air filter, and changing the plug gaps some (I have them pretty tight now). I'll also throw some more timing at it and see how it responds.

I doubt there's a ton to be gained, but I think I can find a few ponies. I'm sure the valve lash issue I found yesterday was choking things a bit as well...

More news tomorrow... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

CHRISPY

BWAHAHA! That is AWESOME <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Eddy current dynos read lower than dynojets but allow you to load the car much more effectively. Cant wait to see your numbers!!
Cheers,
Chris

CutlassRacer

Thats hillarious George, sorry it didnt give you any numbers though. Im working on you know who to speed up our dyno program <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

StreetStalkerZ

iTrader: (1)

That's some funny stuff there george hahahaha! You know you got some power when you need to break out the slicks to dyno <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> Make sure it don't hook and pull the rollers out of the floor <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

GeorgeC

I don't know if it's really that the car makes that much power, or that the hard as a rock very used tires are just that bad. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Fenris Ulf

You got the T350 back in there George?

GeorgeC

Yes, until Friday... I'm putting the 'glide back in then, and leaving it in.

CutlassRacer

Woo hoo I get to see the underside of Georges car again. LOL, hey George, remember what I said about the Trans Brake lines, HA HA <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Maybe we should put them on quick disconnects this time, just incase.

I hope the car picks up again this Saturday for you, sounds like you have been finding a little power here and there.