When is a bigger Alt needed

[JazzScreamer 1]

So I did part of the BIG THREE today. I did the Alt + to battery and the - to chassis (from the battery) I'm still looking for a good place on the chassis to engine block. All is good. My electrical fans don't squeak anymore.

I did have a question though. I did not replace the negative battery terminal, I actually just added a 4ga wire from neg to chassis. Is this OK? The factory Neg wire goes deep into the engine and I didn't want to try and fit a socket or wrench in that spot (lazy I guess) Everything is running fin e like I said. Am I still getting the same benifit as if I just replaced the OEM - wire? Thanks!!

never replace, just add. so you did it right. for the third part, just run a wire from your neg terminal to your alternator bracket. bolt closest to the battery. works just fine.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Does the - to the ground on the alt take place of the Engine block to chassis wire?

[helotaxi 46]

Does the - to the ground on the alt take place of the Engine block to chassis wire?

It's actually a much better option simply because you don't have to worry about the resistance of the car body getting in the way. I have a 18" piece of 1/0 running from the battery - to the engine block to accomplish the same thing.

[JazzScreamer 1]

Cool. I just didn't want to see magic smoke come out of my engine compartment. Thanks!

[mrray13 30]

thanks for that info helo. i did the neg post to engine simply due to ease of install. i surely never gave a thought to the potential resistance of the body. i don't think i would have ever given that a thought, lol.

jazz..mods to the truck include (did, it fell off due to a rather large and deep mudhole) catback exhaust (was a v-force muffler. dyno'd better then flowmaster, same technology), cold air intake with k&n filter and throttle body spacer. i also have a leveling kit, about 2" total lift, up front and 285/75r16 tires. could've went bigger, but was on a budget. also, the leveling kit is nothing more then f150 torsion bar keys.

stereo mods are the big three, yellow top optima, 1/0 thru-out, clarion dxz955mc source unit, memphis 6.5 sq componets up front, mclass 4x6 rears, powered by a memphis belle amplifier. sub stage has included, single memphis pr10 ported off a pr500d, a pair of memphis hpo 10's ported off a mc1000d, a solo x 10 off a orion 2500d, a 12 memphis mojo off the same orion, a solo x 18 off the orion and then a ma audio hk4000d and lastly, i went with three different four 10" sealed setups...pr 10, mclass 10 and kicker cvt 10, all off the sub channel of the big belle. currently no sub stage in the truck.

that should just about cover it, lol...

not counting the deadening on the doors, back wall and roof.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

eeeee

[JazzScreamer 1]

Ever thought about doing a PCM tune? I have one on mine at it gave me 25-27hp at the rear wheels and a bit better gas mileage (2-3 mpg). I've also have a flowmaster cat-back system, AEM cold-air intake, mass flow sensor, 160 thermostat and the newest... Flex-a-lite electric fans. I'm gonna send my PCM off again this week and have it tuned due to the fact that I switch to an electric fan system. Should give me about 3-5hp in addition to what I already have. Thanks again!

[mrray13 30]

no problem...

yeah, i've thought about a tune, the MAF and i really like the idea of electric fans. especially since 05's through 07 classics have them. but then again, it does what i need it to do.

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee