Griffith's fender condenser dimensions

[brcorp]

A few more views of this post (about 1000 or so) and this thread will be in the top 25 viewed posts.

[brcorp]

I'm finally finished, charged up with R-12, took a cruise in traffic, 85 deg F outside, 32 deg F at the vent, high fan setting.

Recapping the effort:
1.) new barrier hoses, compressor, dryer, expansion valve
2.) added tube and fin condenser in rear fender
3.) added fan in whale tail for rear condenser
4.) flushed rear/front condenser and evaporator with mineral spirits
5.) charged with R-12

The results are great, though they mean very little until the temperature goes up.

I'll follow up when the temp hits 120

[kuehl]

Sounds great!
The only part that is scary is the mineral spirits.

Originally posted by brcorp
I'm finally finished, charged up with R-12, took a cruise in traffic, 85 deg F outside, 32 deg F at the vent, high fan setting.

Recapping the effort:
1.) new barrier hoses, compressor, dryer, expansion valve
2.) added tube and fin condenser in rear fender
3.) added fan in whale tail for rear condenser
4.) flushed rear/front condenser and evaporator with mineral spirits
5.) charged with R-12

The results are great, though they mean very little until the temperature goes up.

I'll follow up when the temp hits 120

[niner11]

Kuehl, after the mineral spirits comment I'm thinking that you might be Charlie. Am I right?

[kuehl]

who else would comment on such an issue

regards,

Charlie

Originally posted by niner11
Kuehl, after the mineral spirits comment I'm thinking that you might be Charlie. Am I right?

[brcorp]

Originally posted by kuehl
Sounds great!
The only part that is scary is the mineral spirits.

And why is this scary? This is standard methodology for flushing the system.

[kuehl]

Well years ago mineral spirits or R12 was the way to go in order to cut the oil. However sometimes you cannot completely de-gas all the mineral spirits (this is not say you did not, just simply not everyone does a great job at it).

There are plenty of ac flushing agents on the market that do the task. my 2 cents.

Originally posted by brcorp
And why is this scary? This is standard methodology for flushing the system.

[scottb]

Bill: What did you do for a rock guard to protect the condenser from flying debris?

Also, is it only mounted at the bottom, or did you fabricate a bracket to hold the top as well?

[brcorp]

Scott: I fabed a heat shield and rock guard though have not taken any picts of these parts. As for the mounting, I'm only using the bottom brackets, the install is snug and tight so I didn't see any need for any additional support.

BTW, not that I've finished my project, how is your "in front of the rear wheel" condenser coming?

[scottb]

Originally posted by brcorp
Scott: I fabed a heat shield and rock guard though have not taken any picts of these parts. As for the mounting, I'm only using the bottom brackets, the install is snug and tight so I didn't see any need for any additional support.

Are you at all worried that the virbrations, over time, will cause cracking to the part of the car where you mounted the brackets?

Originally posted by brcorp
BTW, not that I've finished my project, how is your "in front of the rear wheel" condenser coming?

Life's getting in the way. I probably won't do anything until later in the year.

[brcorp]

Originally posted by scottb
Are you at all worried that the virbrations, over time, will cause cracking to the part of the car where you mounted the brackets?

I'm not too concerned about vibe, the condenser itself it fairly stiff and rigidly mounted. Also, I split a piece of rubber and placed it over the top of the condenser so this snugs up the fit on the top. If anything I didn't want to over constrain things.

[kuehl]

vibration mounts will help with fan "noise"

Originally posted by brcorp
I'm not too concerned about vibe, the condenser itself it fairly stiff and rigidly mounted. Also, I split a piece of rubber and placed it over the top of the condenser so this snugs up the fit on the top. If anything I didn't want to over constrain things.

[brcorp]

Actually, I like the fan noise though it is really not that noticeable.

[david914]

Hey, Charlie's joined our club! Kuehl!

[kuehl]

Just for fun and giggles!
Nahhhh, I'm always searching for new ways to make
my Cab go faster, an engine might help.

Originally posted by david914
Hey, Charlie's joined our club! Kuehl!

[Mysterytrain]

Thought I should post this A/C finding on this thread for some continuity..

I did some poking around on Jim Patricks website..looks like he has a very interesting approach to the ultimate A/C project that we may have all overlooked. Notice in the first picture the internal duct work that will be feeding a pair (yes, right and left C2 condensers )


Ok, now check out the front of the car and the inlets..and the battery goes where?



The next picture shows a condenser assembly in place on the right side:



And the last picture is showing the unit installed on the left side..nice and tight against the body..but being fed by the duct work.



Does anyone know what the C2 ducting for the condenser looks like??

[brcorp]

I'm not sure I want to be cool that bad.....

[Mysterytrain]

lol, I hear you...but it makes me wonder about air flow in that area without the ducting and just how effect the front mount will be.

[930slant]

Here's another slant to the whole AC thing. Today i drove our 320 MB and was getting 61degree vent temps for quite a while in 95 degree heat in DC. The strange thing is that I was as cool as a cucumber. As time went on the vent temps went down to the high 40's so it got even cooler but even with the higher vent temps it was VERY comfortable. obviously the vent temp/condenser thing is important but the amount and velocity of air coming out of the vents also plays a major part in the equation.

I have the bow tie arrangement adn pro cooler onm my 930 and even in hot weatehr i'm cool inspite of 50 degree vent temps.

Has anyone tried increasing the efficiency of the fan that does all the blowing of air over the evaporator. i would think that might also play a significant role in the AC quest for cool (or if you are charlie, kuel).

[kuehl]

To increase evaporator air flow:

There are limitations in the Behr box's fan motor mount with respect replacing the oe motor with a faster motor, and their are limits with upper case half of the box relative to the height of depth of the smugglers box which is related to driver side steel plenum; the fan height is limited and over all Behr and mother P did a very good job on air flow.

We have experimented with a faster motor which produced about 20% more cfm. However it is "noisey" related to stock duct work, hence opening up the bow tie,
having 86+ side vents or adding (plug) kuehl vents to the pre- 86 slotted vents relieves air flow. We have had clients contact us requesting help to eliminate "fan noise" (not related to the motor bearing or slippage of the fan down the shaft).

The simplest route is to reduce vent outlet temps while maintaining the oe fan peformance. This is accomplished, as you have read in all the threads, by lowering liquid refrigerant temperatures with additional condenser area or improved condenser coil type, and increasing the evaporator surface area along with superheat tweeking.

For pre 964 owners, the stock evap box is a godsend to work on, R&R under 1 hour, 964 and 993 evap box
R&R .... hmmmmmm 8 hours ?

Originally posted by 930slant
Here's another slant to the whole AC thing. Today i drove our 320 MB and was getting 61degree vent temps for quite a while in 95 degree heat in DC. The strange thing is that I was as cool as a cucumber. As time went on the vent temps went down to the high 40's so it got even cooler but even with the higher vent temps it was VERY comfortable. obviously the vent temp/condenser thing is important but the amount and velocity of air coming out of the vents also plays a major part in the equation.

I have the bow tie arrangement adn pro cooler onm my 930 and even in hot weatehr i'm cool inspite of 50 degree vent temps.

Has anyone tried increasing the efficiency of the fan that does all the blowing of air over the evaporator. i would think that might also play a significant role in the AC quest for cool (or if you are charlie, kuel).