Battery suggestion and IC Option

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Oct 24, 2005 | 08:03 PM

#26

rynberg

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From: San Lorenzo, California

Quote:

Originally Posted by superfastrx7

Rynberg, you got a good point. I have not performed the fan mods to my car yet but it is somthing I will be doing soon. Can this yellow top battery hold enough charge after running the radiator fans for 10 minutes? Even say on a cold day.... here in SC anyways cold days are no lower than 30 degrees.

I have been running my Costco 51R battery for 2-1/2 years or so...through several track events with leaving the fans running for several minutes after shutdown. Not to mention doing that occasionally after street driving. Never had a problem with the battery at all. Theoretically, the expensive Optima 51R should be even better at that.

Obviously, there are limits but I've yet to exceed them with this battery. Although, I don't know why you would feel the need to run the fans, especially for 10 minutes, on a cold day! I've never done the fan mod. I have the PFC, with the fans set to turn on at 89C. Who needs a fan mod?

Oct 24, 2005 | 08:10 PM

#27

superfastrx7

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Joined: Aug 2001

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From: Columbia,SC

Thanks again, I've decided to skip the fan mods and buy a PFC (I was thinking about it).... then down the road will buy the intercooler. Buying the battery tomorrrow. Good point about running the fan mod in the winter... not sure what I was thinking.

Oct 24, 2005 | 09:14 PM

#28

SRA-FD3S

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Joined: Nov 2004

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From: rotary world!!!!!!!!

Re Mini Battery Kit 250.00 I Got It And Its Perfect Help's The Rad Fans Blow Out The Hot Air Aswell

Oct 25, 2005 | 12:49 PM

#29

desmond

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Joined: Jan 2004

Posts: 548

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From: St. Louis

Quote:

Originally Posted by rynberg

Guys wanting to run ASP/Pettit/M2 Large SMICs, you cannot run a 51R battery. You CAN squeeze in a PC680 battery. A PC680 doesn't have a whole lot of extra juice though...

I strongly recommend to anyone running a Medium or smaller SMIC to get one of Jeff's battery trays (or make your own) and run a 51R. It saves a little over 10 lbs and has plenty of juice to start the car, run the fans after shutdown, etc. Much cheaper than a PC680 too, at least if you just stick with a maintenance-free battery like my 7-year Costco brand battery.

can jeff's tray be used in conjuction with relocating the battery to one of the bins?

and can any generic 51R battery be used? i know optima sells one but ive seen posts where people get them for sears or costco. same size but maybe the optima lasts longer

Last edited by desmond; Oct 25, 2005 at 01:01 PM.

Nov 3, 2005 | 08:21 AM

#30

Julian

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From: Longview, Texas

Quote:

Originally Posted by superfastrx7

Julian, That it's a pretty awesome ducting to from your IC to I what I believe is the same area the old/stock IC used (for intake air or did you also modified that area to increase airflow?). r u using stock twins? I will also look into your IC since you have the same type radiator and the AST from Pettit.

It is also good to know the battery will hold charge for a few weeks.

The ducting fits in the same spot as stock. I have a fluidyne radiator so gap is a little less to work with, but trout is still bigger than stock as I used all of the available area. Front opening is larger in cross section and extends down a little more that stock .. in general whole flow cross section is larger than stock not just fit up to SMIC. Stock intake box modified to take air in from bottom, started with Adam's cheap bastard kit and sealed and modified some more.