That makes sense, however the additive of the royal purple is alkiline(sp) based, I can't remember if alkilines will increase or decrease the PH balance. Anyone remember?

alkaline is anything over 7 on the PH scale.

if that's the case, wouldn't distilled water be beneficial in equalizing the chemical reaction potential of the coolant? Assuming Distilled water is close to 6.5 or at the most 6 on the pH scale, and adding coolant in a 50/50 mix will jump it up to 7.3-8pH wouldn't adding the additive only marginally increase the pH to something more alkiline?

This is rather interesting to me.

I would have to agree that the affects of using that additive in conjuction with distilled water and an AL safe coolant will be marginal. If anything, it'll tip closer to the alkaline level of the pH scale which is ultimately better than being acidic.

You maybe better with using a 60/40 though - it'll balance better IMHO. 50/50 would be good when not using that additive. How many ounces is that bottle? I know the stock coolant system is a little over two gallons I believe, we can probably figure this out, lol...

the other thing is that "close" neutral and neutral are still pretty different as far as science is concerned. Also things dont have over night either. Unless you have a Ph of like 11 or 12. But say its 8 or 6. Well your going to find yourself chemically reacting til things settle out.

I think it's 16oz
8.3 is usually what happens when you mix distilled water and gylcol type anti-freeze together. I'll probably email RP with questions about it. (This is all going into the article about cooling. I just want to get my facts and stuff straight before typing it up)

well that makes sense then if its about 8.3

Agreed. You should take measurements initially and then each day for about a week after driving. I'd be curious to see what the rate of reaction is and what it finally settles out at w/ that additive.

Somebody should do a control experiement as well w/out the additive. I don't have an engine or I would take care of this, lol...

I'd love to, but I don't have anything that can measure pH balance. I wonder how much a meter costs from a pool supply store, or even some testing strips....

I'm thinking something like this:
http://www.lesliespool.com/browse/Ho...400020/I/82053

strip testing kits are pretty inexpensive.

Tongue works too- if it's acidic, it's sour. If it's basic, it's bitter.

Oh wait, this stuff is poisonous right? Forgot... :p

I was using the stock electric fan circuit.
I threw away the POS stock electric fan, and I wired in a relay through the existing circuit.
I had my SPI water temp gauge monitoring everything.
The warning light was looking for a specific resistance through the circuit, and the relay wasn't enough - it would light the warning light anytime the fan would trigger - was rather convenient at the time.

Now I use a Spal PWM-FAN controller using the SPI water temp sensor.

Side note on the whole corrosion thing...
Distilled water is not as bad as RO water; I think the "leeching effects" are rather mild versus RO water.
Oxidized aluminum makes a very effective barrier against corrosion - this is the whole idea behind aluminum anodizing.


-Ted

Time for a resurrection

Ted, how did you fit the radiator in your 7? No matter how I cock it I can't seem to get it to lay correctly without having it stick out the bottom below the oil cooler, or interfere with the front sway bar.

I'm honestly thinking about switching to a smaller height radiator to allow me to do a completely vertical mounting of the radiator.

Anything from 20*-95*F

Never exceed 187*F

168-173* on the highway, will hit 180-185* after 4 hours of constant 4th gear dyno pulls

:rofl:

It's a Griffen universal, singlepass, Ford/Chevy opposite side in/out which worked out better for my setup. Cost was about $180 IIRC.

I've found that ducting is the key.

Don't use water wetter. It attacks ans liquifies the coolant seals

Bring her to me! MWAHAHAHAHAAHAHAHA! Or wait a few weeks and we'll be passing through your neighborhood.

I don't know what size you have but here are some pictures of a 27.5x19 fitting in the stock location ---> http://shookmotorsports.com/FCProducts