by spencerforhire » Thu Sep 30, 2010 8:41 pm
The average 100amp alternator should be able to handle the load just fine. A few words of warning; 2 things to avoid are 1-wire units and under-drive pulleys. 1-wire alternators often need to be revved up to start them charging, and under-drive pulleys(either a small one on the crank or a big one on the alt.) almost never charge properly at idle. These concerns are for a street driven car; for race only the 1-wire unit simplifies wiring and the underdrive pulley is a good thing, especially if the RPM's get above 6000-7000.
I'm a big believer in electric water pumps street or strip; they move a lot more water at idle and being able to leave them on after the engine is shut off really shortens cool down time.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....
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