Electric Fan

[dec322]

Adjustable thermostat? Are you talking about the one in the thermostat housing (neck)?

I'd love some pictures.

 

[JKmotorsports]

Adjustable thermostat? Are you talking about the one in the thermostat housing (neck)?

I'd love some pictures.

I bought it from Autozone. It's basically a probe that goes in between the radiator fins and can be adjusted to turn on the fans at just about any temp. IIRC, it was only $17 and has been working perfect since I put it in.
I just realized I don't have any pics of the install. I'll try to get some up for you this weekend.

 

[dec322]

I bought it from Autozone. It's basically a probe that goes in between the radiator fins and can be adjusted to turn on the fans at just about any temp. IIRC, it was only $17 and has been working perfect since I put it in.
I just realized I don't have any pics of the install. I'll try to get some up for you this weekend.

Thanks man.

I'm not real big into the whole electronic type stuff but I can follow directions with the best of them. I'm liking the idea of putting my own setup together because of cost. How did you program the PCM?

 

[JKmotorsports]

Don't have to program the pcm. The aftermarket thermostat controls the fans. Another option is programming the pcm to turn on the fan control and use that instead of the aftermarket thermostat.

 

[Max]

I'm just gonna buy some new oem 05+
http://cgi.ebay.com/ebaymotors/05-0...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

[dec322]

Don't have to program the pcm. The aftermarket thermostat controls the fans. Another option is programming the pcm to turn on the fan control and use that instead of the aftermarket thermostat.

Ok. That makes sense. How long have you been running your setup? How accurate is the aftermarket thermostat?

I'm a little worried that the thermostat might give out and the fans won't come on...then I overheat and then I blow a head gasket. My wife drives the yukon and she will never check gauges to make sure everything is functioning.

Did you notice an increase in MPG?

 

[jmildoc]

that is what I am wanting too dec322 an increase in mileage would be great

 

[dec322]

that is what I am wanting too dec322 an increase in mileage would be great

What kind of mileage do you get with your lift? We just ran through our first tank with the yukon and averaged 13.5 mpg (90% city). The tires were inflated to 28 psi. Yesterday I increased to 35 psi and will see if we get any increase. Next week I will change the fuel filter and check. Lastly, I will change the plugs and check. I want around 15-16 in the city.

Everything else done to the truck will be for MPG (exhaust, fan, filter.....BB Tune ...maybe not)

 

[jmildoc]

well i never noticed a difference with the 2 inch lift. I do have the 6.0 and its a 2500 so it is hard to compare. but I will tell you when I changed over to full synthetic gear oil in the rear end. I gained 1.4 mpg!!!!! I also run 50psi in the front tires and 55 in the back. I am going to change the front diff fluid but havent gotten around to it yet

 

[Rivieraracing]

I'm looking for electric fans that when "all said and done installed" look like factory but would like to see any successful install pics as well!!

 

[dec322]

I'm looking for electric fans that when "all said and done installed" look like factory but would like to see any successful install pics as well!!

I was just searching on Tahoeforum (I refuse to post there) and found JK's project list and a few install pics. I also found a link to a pretty good writeup with pics.

I'm still comparing it to what JK did and will decide on how I want to proceed. For instance, I like the adjustable thermostat idea better than buying the controller....at least right now.

I also saw something about a S&B Intake. Where do you buy one?

 

[JKmotorsports]

Ok. That makes sense. How long have you been running your setup? How accurate is the aftermarket thermostat?

I'm a little worried that the thermostat might give out and the fans won't come on...then I overheat and then I blow a head gasket. My wife drives the yukon and she will never check gauges to make sure everything is functioning.

Did you notice an increase in MPG?

I've been running it for a couple years now I guess. No problems. There really isn't much to the thermostat in terms of wearing out and becoming inoperative, so I doubt it would fail any sooner than the factory CTS (coolant temp sensor).
The thermostat has a knob that you can set to whatever temp you want. I set mine to come on around 180* and it does it everytime.
I gained roughly about 1-1.5 mpg over a couple tanks, better throttle response, and slightly cooler AC.
In the write-up link you posted above, it looks like Beason used the same thermostat I have.

 

[JKmotorsports]

I also saw something about a S&B Intake. Where do you buy one?

I don't remember for sure, but I think I bought mine from either Jeg's or Summit Racing. I like the S&B because it's sealed from the hot underhood temps and they provide a dyno chart on their website with actual gains. I also believe they make the filters for K&N.

 

[JennaBear]

I never believe dyno charts that manufacturers post! Most of them wind up screwing with the baseline numbers anyways. They all use DynoJets too since they show 20% higher numbers.

 

[Volant1]

Jenna is 100% right, We say 20hp two guys garage says 23 on a mustang dyno here is a link http://www.volant.com/commviewer.asp in house I use a superflow, granitelli uses a 4 wheel drive mustang, Wide open throttle uses a mustang, Van gordon uses a superflow, Dyno Jet has a 10% power curve which the autodyne 90 software can factor in for the customers that use more than one dyno shop, Fact is Jenna, Baseline is Baseline and max is max if you use the same dyno for baseline and max both runs will show the same hp gain no matter what brand you use. Careful with your words if you want to throw everyone under the bus

 

[Justin]

Jenna is 100% right, We say 20hp two guys garage says 23 on a mustang dyno here is a link http://www.volant.com/commviewer.asp in house I use a superflow, granitelli uses a 4 wheel drive mustang, Wide open throttle uses a mustang, Van gordon uses a superflow, Dyno Jet has a 10% power curve which the autodyne 90 software can factor in for the customers that use more than one dyno shop, Fact is Jenna, Baseline is Baseline and max is max if you use the same dyno for baseline and max both runs will show the same hp gain no matter what brand you use. Careful with your words if you want to throw everyone under the bus

Not quite true. Brand for brand should show similar PERCENTAGE gains, not HP gains, however there are many ways to "trick" the numbers. One trick I stumbled on showed a manufacturer starting the stock inertia pull at 3500rpm, which had the truck in closed loop for the first second or so, yielding low numbers til over 5000rpm. In the pull with their intake installed, the run was started at around 2000rpm, but recording was not started til 3500rpm, allowing the entire run to be made in PE mode, with increased ignition timing and appropriate fueling. This, naturally, will yield better gains. On an 07+ Vortec Max truck, this would show a 35 ft-lb difference aside from any intake gains.

DJ inflation factor is not 10%, it's much closer to 20%: http://www.factorypro.com/magazine/dynojet_dyno_inflated_hp_reason.html

 

[Volant1]

I am well aware that there are many ways to bump the numbers on a dyno, my comment was not regarding that you cannot change the numbers by altering the test. It was stated that everyone uses a dyno jet and plays with the numbers. If I were a customer that had no idea how this indrustry works and I were to read a post like black bears if would make me think twice about ordering aftermarket parts for my truck. K&N is one of the biggest companys around they use a dynojet but there numbers are dynojet stock and dynojet after but the software should factor in the % difference for wrhp. My dyno can pull up Superflow, mustang, and dynojet numbers. Intakes make little power tell 3200 rpm on up so most test start at 3000 so unless you have an exhaust there is little need to run the test from 700 to 6000 theres to must data to go through.

 

[Justin]

I am well aware that there are many ways to bump the numbers on a dyno, my comment was not regarding that you cannot change the numbers by altering the test. It was stated that everyone uses a dyno jet and plays with the numbers. If I were a customer that had no idea how this indrustry works and I were to read a post like black bears if would make me think twice about ordering aftermarket parts for my truck. K&N is one of the biggest companys around they use a dynojet but there numbers are dynojet stock and dynojet after but the software should factor in the % difference for wrhp. My dyno can pull up Superflow, mustang, and dynojet numbers. Intakes make little power tell 3200 rpm on up so most test start at 3000 so unless you have an exhaust there is little need to run the test from 700 to 6000 theres to must data to go through.

The word "All" wasn't the perfect word, but the vast majority do use dynojets. And any dyno that "corrects" to a DJ is just adding in the DJ inflation factor.

I have yet to see any manufacturer claim their gains in real % other than the outrageous marketing claims like "up to 20% more power", et al. When a parts manufacturer uses a DJ dyno for a baseline and max power, then that difference is also inflated by near 20%, it's simple math.

We are not at all bad mouthing any of these manufacturers, as we have run independent back to back tests on a number of systems on the same dyno on the same day (Volant was included in that test). ALL performed quite a better than the stock box and tube. None lived up to any manufacturers claims, but that is to be expected.

 

[JennaBear]

I never said I don't buy any of the products, I just said I don't go by the dyno charts. I have plenty of aftermarket parts on my vehicles, and will always tell customers that intakes/exhausts are all personal preference, as they all essentially do the same thing with slight variances.

 

[Volant1]

huh this is getting to be way off topic so instead of beating a dead horse in going to leave it be. When you tested kit after kit im sure the vehicle had some drive time in between swaps I would love to see the data and which kits were tested [email protected]