Re: '67 El Camino H/SA
 

Looks great Rich! and not too shabby for the first outing with the budget
motor! Love it!

Re: '67 El Camino H/SA
 

Saturday May 27, 2017
Beech Bend Raceway
Bowling Green, Kentucky

Re: '67 El Camino H/SA
 

Thanks Doug! Sunday morning brought a first round heads-up race against a .900-under the index car lol...I almost had him. :p

Re: '67 El Camino H/SA
 

Looks like it leaves nice and square, Rich. Cool car, for sure. -Al

Re: '67 El Camino H/SA
 

A recent operator error revealed something of interest I had not considered. At a local TNT session my first pass was a beast off the line...not so good down track. By beast I mean my 60' times went from it's usual 1.61 to a stellar 1.50...launching hard and jerking the front wheels 2' off the ground. The et's and mph were not reflecting what was happening on the starting line however.

It was not until I returned home that I discovered that somehow my locked timing was at nearly 50 degrees advanced. It did not like it at the end of the track, but boy howdy did it love the timing at launch.

With the programmable 6AL I have installed I was able to plot a timing curve which will allow 48 degrees until 5000rpm and then begin pulling timing out thereafter down to 36 degrees. I have yet to test this and no idea if it will pan out.

http://i434.photobucket.com/albums/q...pskqeel1it.jpg

If anyone here sees a problem with this experiment I would be happy listen to the pros/cons.

Re: '67 El Camino H/SA
 

I think you should do some more checking first. Agreed that you can utilize more timing at the beginning of the run, but I've never seen anything like your combo have that much timing. Something is amiss.

Re: '67 El Camino H/SA
 

X2 that is a pile of timing

Re: '67 El Camino H/SA
 

Agreed it is a lot, but it will be pulling most of that out before the 60' lights easily. Talked to some racers at the SportsNationals and they were also running near that much timing initially at the start...difference was they were using micro-switches on their shifter to activate the retards.

My thoughts are the engine will never drop below 5000rpm again after the launch...it will only be utilizing the high timing for a very brief period of time. Testing will tell the tale.

Re: '67 El Camino H/SA
 

Reminds me of the dual point distributor mods that permitted turning off the one set of points, so as to retard the timing.

But, if an engine makes the most power with say, 35*; how could it run better with 50*?
Especially if the stall speed is what? 5000? 5500? I mean maybe it will make more torque at low rpm's, maybe. But it never spends time there and the convertor won't allow it to.

Just thinking out loud. I had this idea for a car years ago. (Over advancing.) We never tried it because we "bench raced" past it. (And had another beer, but thats another story.)

Re: '67 El Camino H/SA
 

All I can report at this time is the effect it had at the last outing. Weather permitting I will be taking it to Bowling Green this Saturday afternoon and the et slip will determine what it wants.