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  #121  
Old 09-16-2014, 05:56 PM
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Quote:
Originally Posted by bcredliner View Post
I want to eliminate the horsepower drain from the mechanical fan.
Can imagine that fan must be sucking the life out of your car

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  #122  
Old 09-16-2014, 06:45 PM
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Seeing that Brian has done Dinan stage 2 performance upgrades, nitrous, meth injection and exhaust dumps, all in the name of increasing HP, going with an electric fan to free a few additional HP makes complete sense to me.
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  #123  
Old 09-16-2014, 06:48 PM
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Never understand people who go to all of that expense and effort to 'upgrade' and old car. I'd rather spend the money buying something that was designed to have more power in the first place. Takes all sorts I guess
  #124  
Old 09-16-2014, 07:00 PM
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First owner 4.6is (top BMW performance X5 model thru 2003), looks like it just rolled off the showroom floor too.
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  #125  
Old 09-16-2014, 07:05 PM
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I'm sure he's done an amazing job with it, I can fully understand wanting to keep the car in showroom condition (preserve a piece of history), just not the 'upgrades'. That said when I think about a 4x4 performance is really not that important hence my X being a diesel If I wanted something high-performance I'd buy a sports car.
  #126  
Old 09-16-2014, 11:58 PM
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Quote:
Originally Posted by JBF View Post
I'm sure he's done an amazing job with it, I can fully understand wanting to keep the car in showroom condition (preserve a piece of history), just not the 'upgrades'. That said when I think about a 4x4 performance is really not that important hence my X being a diesel If I wanted something high-performance I'd buy a sports car.
I have always built sleepers and have always added performance mods on everything I have owned, including sports stars. I never choose a vehicle that is expected to be fast or handle like a sports car. That's what I like to do.
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  #127  
Old 09-17-2014, 12:32 AM
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Never understand people who go to all of that expense and effort to 'upgrade' and old car. I'd rather spend the money buying something that was designed to have more power in the first place. Takes all sorts I guess
Some people like to tinker and upgrade cars. Everyone has their own ideas of how to enjoy their vehicles.

I don't understand people who invest money into wine cellars or cigar humidors but I don't belittle them on the forums dedicated to those subjects.

BTW... on my e30 318is turbo, replaced the stock clutch fan with big volvo efan (~15 bucks at pick n pull). Dyno'd before and after and gained over 10rwhp. LOL which for a little 1.8L 4 is a lot.
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  #128  
Old 09-17-2014, 10:13 AM
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Quote:
Originally Posted by trader4 View Post
If the engine computer opens the thermostat fully and expects water at X temp and instead gets it at a different temp, does it have some effect on what the engine or engine computer does?
If the T-stat is full open and water temp is too high, retarded timing is the least of the worries.
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  #129  
Old 09-17-2014, 12:28 PM
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I ran some errands yesterday. It was 91 degrees. Total distance was 21 miles. I made 3 stops. First stop was at 6.5 miles. By that time the coolant was at operating temp. When I returned about 30 minutes later the fan was coming on about every 2 minutes and stayed on for 15-20 seconds. Next stop was in two miles. When I returned in 40 minutes the fan was not cycling on and off. Last stop was under 2-3 minutes at abut 17 miles. Fan was running when I got in and had not gone to the cycling. When I got home I listened for the fan. It cycled the 15-20 bursts 12 times for just under 30 minutes. During the jaunt the temp gauge was solid at normal position. No noticeable impact on the battery.

What I observed:

Engine free revs quicker.
When I start the engine it revs higher before it settles to an idle.
I know by pressure on the gas pedal about the speed I am traveling. When I checked the speedometer I was almost ten over. I had to adjust pedal pressure to be within the usual under 5 over. The engine response was also improved when the coolant was at operating temp. I translate this into improvement in acceleration. I think that if I am accelerating from a dead stop the improvement will be greater, similar but to a smaller degree how a lightweight flywheel behind a manual transmission can improve 1/4 mile times.

Obviously, I have no documentation. And, I understand since I don't and I believed there would be improvement it can be only in my mind.

I will be driving over 100 miles without stopping on Friday. I will post what happens. Just for grins, I will do a couple of pedal to the medal runs down on ramps and at highway speed (75-80).
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Last edited by bcredliner; 09-17-2014 at 12:36 PM.
  #130  
Old 09-17-2014, 01:28 PM
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Quote:
Originally Posted by crystalworks View Post
Some people like to tinker and upgrade cars. Everyone has their own ideas of how to enjoy their vehicles.

I don't understand people who invest money into wine cellars or cigar humidors but I don't belittle them on the forums dedicated to those subjects.

BTW... on my e30 318is turbo, replaced the stock clutch fan with big volvo efan (~15 bucks at pick n pull). Dyno'd before and after and gained over 10rwhp. LOL which for a little 1.8L 4 is a lot.
Finally a before and after!

I just recently pulled the fan on my little (200 hp) car. Huge difference. Pretty much everything said above plus my mpg went up around 1 mile! That's what I'm shooting for is mpg. My goal is 30mpg in my small car.
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