Anyone have experience running Evans NPG+ coolant in their 928
#31
Vegas, Baby!
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#32
Race Car
Dan
'91 928GT S/C 475hp/460lb.ft
#33
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Ram cram do you have a template for the 10 inch fan shroud? I see your showing a twin turbo not a S/C on your avatars so we are talking about the S/C cooling correct?
#36
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I don't have a template I'm sorry and it will depend very much on your installation.
With the supercharger and everything else in position, we measured all the tight spots eg side and top of the radiator to the crank pulley, to get our max width and height. Then radiator core back until it would foul on the breathing pipes I have for the ProVent.
This gave me a max for a 10" fan and about 12mm clearance from the core to the fan hub, which I'm happy with.
With these dimentions, we pulled the radiator found some 0.8mm galv sheet under the bench, [would have used alluminium if I had any], folded the bottom and inner sides over the edge of the work bench, put 'U' shaped rubber over those edges. The outer and upper edges just lay on the radiator edge. The outer we left a folded over double peice to go under the Porsche hook on the tank for the original shroud and the top we put 2 small self tappers into the radiator edge strip.
There is not much sheet left by the time a 10" hole is cut for the fan, it's very light.
I hunted the net for a fan that has 'S' type blades for quietness and one that claimed good CFM.
Last weekend we went on a run with the local Porsche Club, through the hill for about 150km and it was 38C [100F] and the temp needle didn't go past the first mark. Before it would have gone to the top on the uphill and dropped back only a bit on the downhill.
#37
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Jay Leno uses this http://www.jaylenosgarage.com/extras...nt/index.shtml
I also use Evan in my VW years ago. It will change to a darker color after couple of years.
I also use Evan in my VW years ago. It will change to a darker color after couple of years.
#38
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Just saw this. We have run Evans coolant for 15 years or so, from back when it was called Mecca Fluid. We have used it in 500+ hp V8 wind machines and it is awesome. It does not run hotter for us and the engine seems to not suffer the heat soak as badly as modified water. We run hard then shut them off and they do well with the Evans. Evans with electric water pumps is a great way to fly...
#39
how did you go with the liquid intelligence? I have it in my 1984s with a new pwr radiator but it seems to run hot, last white line on the freeway. up to the red in traffic in a Brisbane summer.
Mark
1984s Australian deliver 928
Brisbane
Mark
1984s Australian deliver 928
Brisbane
#40
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I'll definitely be running it in my 6.5Litre when I eventually finish it.
Going 'up' to the red line should not be an issue because you are still WAY under the temp limit for LI-115. You just want to keep your oil temp for going much over 120C.
It won't be the coolant that is causing temp rises, most likely he radiator itself.
#42
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A 10" fan, 2750 CFM and 7A dont really compute for me? I have a dual SPAL set up giving around then same CFM, and their rating is over 20a.
jp 83 Euro S AT 57k
jp 83 Euro S AT 57k