Nov 6th, 03, 05:15 AM
I did a search and came up with tons of information, but I still have a couple of questions. I want to run the LS1 fan set up on my stock replacement BB w/air radiator. What do you guys think? I also want a nice high flow water pump, this is what I want the most input on. Which water pumps do you suggest? Is there a stock replacement pump from some other year that is really good? What about the aftermarket pumps? I'm cheap and poor, so budget is always a consideration! Thanks.
Nov 6th, 03, 02:21 PM
I don't know anything about the LS1 fan, but if it doesn't pull at least 20 amps plus it won't suffice even if it's the best shroud and blade design on earth. I would op for the MarkVIII fan about 150 bucks.....best airmover there is and you will need it with the BB and air.
I have a mechanical fan (Derale 17XXX heavy duty series) on my 400+hp small block with air and it does just fine in 100 degree temperatures in hotAtlanta traffic.
I would look at the TuffStuff or Stewarts high flow water pumps. Both great quality and very reasonable pricing.
Nov 6th, 03, 08:43 PM
Thanks for the reply. I actually only run a mild small block, but I have the BB w/air radiator. The LS1 set up pulls about 30 amps from what I understand. I may go with the Mark VIII fan set up. Thanks for the recommendation on waterpumps.
Nov 7th, 03, 01:03 AM
I would be anxious to learn more on the LS1 fan if you can report back. Certainly if you have a small block and a larger BB radiator the LS1 sounds like a fit. 30amps will take an upgrade of the alternator if you are not running at least a 100 amp model. And use 70amp relays for the fan, not 30s or 40amp models. Trust me, you will thank me later. I would look to Newark Electronics (www.newark.com) for Tyco 70 automotive relays.
Nov 7th, 03, 05:03 AM
Thanks! This will be my first time setting something up with relays, but I'm convinced that's the way to do it. I will try to find the thread that gave more particulars on the LS1 set up, but I believe it flows ~2300 CFM? I figured if it can keep an LS1 with air cool, I should be fine. My car runs cool with the current set up which is a cheap flex fan, short pump and shroud. I plan to install a 100 Amp one wire alternator. I will also inspect the rest of my wiring to make sure it's up to snuff. Thanks again.