Easy install

[cdnprebug]

Just picked up the FSD Heat sync and PMD combo. On the website and in the instructions there is mention of the install taking 15 minutes with hand tools so I thought I would time my install just to see how long it would take me.


6 1/2 minutes. is what it took me with.
Exceeded my expectations with one small exception. Not everyone owns a torque wrench and the proper torquing of the heat sync unit to the intake manifold is important. I own several so this wasn't an issue.

Gonna take her for a spin tonight, hopefully my stalling and spotty re-start issue is all fixed.

I've read on these board of other members making up or purchasing a long extension cable and mounting it out of the engine bay. I sure hope that it works out underhood because I really like the look of it where its mounted.

[w_huisman]

... I sure hope that it works out underhood because I really like the look of it where its mounted.

:( :confused:

[vail426]

Get it out of the engine compartment http://www.pmdcooler.com/commerce/default.asp?ITEM=H001-06

[Jed Clampett]

I will offer what I did and why for discussion and opinions. I too mounted mine on the intake with the factory length cable. I decided against the extension because of a discussion concerning the addition length causing timing issues on 94s and later. Also, some issues about "arcing" I think it was. Anyway, I figured to try it with stock cable, I had an extra PMD. Now, I used to work on computers. The PMD on a heat sink is the same deal as a heat sink on a PC processor.;) with the exception the processor has a cooling fan.:D So, I went to my local Radio Shack, purchased a cooling fan, bout 4" square, and mounted it to the heat sink. Wasn't hard to do either.;) Then I wired it to an engine on circut and fused it. Comes on in start position, stays on, and goes off when engine is turned off. What I didn't do, and should, and will, is use the heat sink compound sold at RS as well for even better contact with the heat sink. I was impressed when I first fired it up and checked it. Man, that heat sink was hot! The fan was pushing engine compartment air over the cooling fins. The PMD was hardly warm! I live in Southern Maryland and it was a hot summer. I've had no problems to date. It's funny too. After I did that, I saw somebody selling the same basic rig I had with the cooling fan. Hadn't seen it before so I was, for a short period of time, impressed with myself:cool: I still carry an extra PMD

[Sundance]

I am going to try the computer fan as well. They are less than $5 on ebay.

I was wondering if there was some sort of thermostatic method for it to turn on and off. Heat after shut down is a major problem with PMD's as well.

Any ideas on the thermostatic on/off???

[Sundance]

I just ordered a couple computer case fans. $3.95 with free shipping. These last an average of 20,000 hours (or over 2 years if run 24/7).

Case fans have a higher CFM than CPU fans.

http://cgi.ebay.com/FREE-SHIPPING-in-USA-80mm-Case-Fan-4-pin_W0QQitemZ160181033630QQihZ006QQcategoryZ80149Q QssPageNameZWDVWQQrdZ1QQcmdZViewItem

[cdnprebug]

The fan could probably be wired like a turbo timer so that it stays running for a while after the vehicle shuts down as this appears to be a hot time in the engine bay and a time where alot of PMD's bite the bullet.

I was going to purchase a turbo timer anyways. I'm sure that it can be wired such that the fan is on while running and also on for a brief period of time after shutdown.

Some 2-way remote vehicle starters have a turbo timer function (Compustar does in some models). I think that in some of the models you can program the "run time" by your remote.

The key to wiring it like this would be to power the fan with 2 isolated positive power supply leads. One that is powered when the ign is on and another that is supplied power by the turbo timer device. Obviously some form of diode would be required as an isolating device between the two supply leads.

As the PMD seems to be the largest electronic failure item in this engine it would be interesting to purchase a data-logging remote temperature probe just to determine the run and after run temps of various PMD mount point including the front bumper and perform these tests at various outside temps just to see the range.

Everyone seems to have their own ideas of where is the best place to mount this unit. It sure would be nice to put some numbers to this ongoing electronic issue.

One piece of advice that stands out loud and clear after reading 100's of posts on many web forums regarding the PMD is that a spare known good or new PMD is a great thing to keep in the vehicle.

- Pete

[Sundance]

The beauty of a thermostatic control would be a single power line.???

Computers have sensors that monitor CPU temps......... I wonder if one could tie one into a fan system.

I agree a spare is a great glove box item to be sure.

[Sundance]

And of course there are water cooling setups as well............ Yikes!!

http://cgi.ebay.com/USED-GREAT-CONDITION-AQUARIUS-II-THERMALTAKE-COOLER_W0QQitemZ230193313010QQihZ013QQcategoryZ801 50QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[cdnprebug]

Well as a follow up to my original posting I thought that I would post the results of my install of the FSD heat sync combo.

It looks as though the stalling and funny re-start issues are all gone. I attempted to replicate the exact conditions that once cased the problem and it started perfectly every time. I feel a little more comfortable driving the vehicle now with winter just about here.

The truck also appears a little more lively (could be placebo effect) under WOT which may have been due to the #9 resistor. Very happy over-all with the part but I think that I will still be searching for an additional cooling method ie. fan of sorts.

I'll likely leave the part underhood where Walt suggests but provide some form of extra cooling in form of a fan. Just need to research the best way to wire the power (thermostat or otherwise).

No doubt about this .... I will be purchasing a second FSD Heat sync combo to keep in the glove box as a spare. Peace of mind is worth the sub $400. asking price for the unit.