Yenko Hood Tachometer

blue thunder · #1 05-26-2005, 12:08 AM

Does anyone know if any of these new electronic spark controls that fit under our existing distributor caps will still allow the Dixco hood tachometer to function properly. I understand from a friend that the tachometer won't function properly unless the standard mechanical points are in place. Any thoughts?
Many thanks, Alan
'70 Deuce YS-65

camarojoe · #2 05-26-2005, 02:34 AM

Good question, and one I'd be interested in knowing the answer to myself... My Deuce has points, but my Camaro has the "Pertronix" unit you describe, and I have never been able to get a SW 970 tach to do a darn thing in it... I have always blamed it on the tach itself, as I have tried several 990B monitors without luck... never thought about it, but maybe the problem is the ignition system, not the tach...

PS.. i just made this post because i wanted to use that new graemlin.

blue thunder · #3 05-26-2005, 03:46 AM

Joe,
That graemlin is pretty cool. He looks like I feel about so many questions. Thanks for posting, maybe somebody will take a look and give us an answer. Anyway, perhaps what I heard is true about the module units. That could be the answer to your tachometer problems. Let's see what somone can come up with.
Alan
'70 Deuce YS-65 Also

Chevy454 · #4 05-26-2005, 04:36 AM

While not *exactly* the same...

I have an MSD manual that mentions work arounds with different tachs and monitors...let me dig it up, and maybe it will lead us in the right direction...

blue thunder · #5 05-26-2005, 05:13 AM

Thanks for the help

Motion Camaro · #6 05-26-2005, 05:35 AM

<font color="blue">MSD sells a tach adapter which should straighten out the signal.
Call the tech dept, they 'may' be some help. </font>

Chevy454 · #7 05-26-2005, 05:45 AM

Good luck getting through...

blue thunder · #8 05-26-2005, 05:55 AM

That sounds like it is certainly worth a try. Is everyone else still running on regular points or am I trying to be too "high tech" about this? I just remember so many times with the thickness guage and dwell meter and of course the old emery board to re-juvenate the points contacts. I have owned this car since it was new so I have been under the hood more times than I can count. But, it sure is less imtimidating than opening the hood on a new car.

camarojoe · #9 05-26-2005, 06:10 AM

Personally, I'd leave the points in it if you haven't already bought the electronic ignition module... I'm sure Rob could point out the pros/cons as to how many 10ths its worth to install the Pertronix, but personally, I haven't noticed any difference from a good ol' set of points. I originally installed it on my Camaro when i was battling an ignition problem that was later traced to a bad reproduction delco plug wire, otherwise it would still have the stock points in it. My Deuce still has points, and I have no plans to "upgrade". PS.. my hood tach works too! (thanks to Joe Swezey!)

Chevy454 · #10 05-26-2005, 06:25 AM

[ QUOTE ]
... I'm sure Rob could point out the pros/cons as to how many 10ths its worth to install the Pertronix, but personally, I haven't noticed any difference from a good ol' set of points.

[/ QUOTE ]
Actually, I'm not a fan of Pertronix...and according to some of my fellow Pure Stock racers, a good set of points (I've had good luck with Accell) will out power the Pertronix on the dyno! In fact, I believe it was Casey that said "Pertronix is the devil!"

Anyway, if you're still looking to do away with your points for good, and do it correctly, then I'd pursue *other* avenues...