I forgot to mention that all this was data was taken with the car fully warmed up, in a garage at idle.
Yes, running the standard GM set of pulleys. I think your correct about the 2:1 ratio,'Are you running a 1:1 ratio on your alternator/crank pulley?? Alternator pulleys should be smaller than the crank pulley. I've never measured one, but I'd say it's about a 2:1 ratio, alternator spinning faster.
Sorry, I was a little confused there, thought your engine idle rpm was 1500. :clonk:Yes, running the standard GM set of pulleys. I think your correct about the 2:1 ratio,'
Idle is 750 RPM.
Tek DPO4104. Great Scope.Great data Ron. Too often I think people do exactly what you said and just throw whatever alternator they were told would work in the car and never measure anything (I am included in this category) Real world data is always great to look at.
And if I had to guess, I'd say that's pretty fancy 'scope you're using. What brand?
M&H Darren is correct, the factory harness and the aftermarket harnesses are not capable of handling 100A.Wow this is great info. I am going through the same thoughts on what I need to do. I spoke with Darren at M&H harness http://www.wiringharness.com/ and he said the factory harness new or old cannot hold up to 100amp consistant power. BUT you can run a larger gauge wire from the back of the alternator to the battery if you use a 140amp alt to help with the amp flow and not burn the car to the ground. How did you wire your car bikeron? Do you think that additional wire off the back of the alt will be ok? thanks.
Ron, please post pics and even a diagram if you could? This is much like what I want to do and you helped me in my thread with my concerns. I would love to see how you complete this change.This additional 76 amps comes from the Bus bar through a Maxi fuse and 8AWG wire through a bulkhead feed through to a Bluesea fuse Box under the dash.
Started a new thread on this:Ron, please post pics and even a diagram if you could? This is much like what I want to do and you helped me in my thread with my concerns. I would love to see how you complete this change.