Has anyone using this set up with out a generator had failures such as shown in a recent post?
Only had them fail if running a generator
I have had this set up on both a generator and alternator, 12 and 6 volt and have not had a failure thus far in 4 years of use. However, looking at Bill's post of the failure, I will certainly be inspecting the ones I have and may change them as preventative before failure. The 7.5 advance sure makes a difference in how the car runs.
Can you get a advanced timing gear in bronze or aluminum. thanks
Are you using a Stipe 280 camshaft with the 7.5 advance nylon gear?
Bill Stipe used to make an adjustable timing gear. I don't know what kind of metal it was made of.
Any timing gear can be drilled with an extra pair of dovel pin holes for an alternative timing. I bought an aluminum timing gear drilled with extra holes for 7.5 degrees advanced timing from Antique Auto Ranch in Spokane, Wa. I'm very pleased with the performance in combination with their reground camshaft.
Several years ago, we set up and drilled a few stock cam gears for the 7 1/2 degree advance. I put one in my old VERY tired '26 engine in my TT. It made a LOT of difference, very noticeable. JMHO. Dave
Did you find the improvement at higher speeds or at low speed?
I can supply my gears with ANY advance or retard you desire. Dan
The improvement fom advancing the cam is at low speed and only with a worn or reground camshaft. Some trade of at high speed - but without an accessory transmission you really need the power best at low speed when getting into high gear or when going up a steep hill. With the 3:1 rear axle gears in a light pickup I can both pull up all the hills I've found (yet) in high and speed on wide, straight & smooth roads up above 50 mph (Ok, I have a planed high compression head and a 3/4 race grind)
Takk Roger, og GOD JUL!
Hjertlig takk og det samme til deg
That's Merry Christmas Roar wrote - let's hope we all get a Merry Christmas
One of the gears is on a standard cam engine. One is on a Chaffin performance regrind and the third on a standard re-grind. Out of the 3, the Chaffin regrind runs the best in a 25 coupe. Better low and top end. Starts and idles well. For my money, the best overall deal.
The '25 uses a .120 shaved head while the other have Z-heads.
Tom, Your right advancing our old 270 regrind does improve it's low end performance. Same for the Stipe 280 cam. But we have now advanced our reground cams so you do not need to advance them any more. In fact if you advance them now you will degrade their performance. Our new 280 cam and our regrinds now both have advance and are virtually identical. The 280 will have slightly better high end due to the higher lift.