MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
A/C
Posted by: BlownMGB-V8
Date: July 21, 2016 06:12PM

Here's the basis for my future A/C system for the MGB:
IMG_0035.JPG
It is the evaporator out of a VW Vanogen

Here it is in place in a '74-1/2, not the car it is to be used in but a good test for fit.
IMG_0031.JPG

It is positioned above the cowl vent door but the wiper mechanism and windshield vents may pose a challenge
IMG_0032.JPG

The dashboard will have to be positioned closer to the driver.
IMG_0033.JPG

I won't be able to start on this for awhile, but I bought these parts so I can run the under-hood lines back to the firewall.

Jim


rficalora
Rob Ficalora
Willis, TX
(2764 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: A/C
Posted by: rficalora
Date: July 24, 2016 03:16PM

Looks really big. What size condensor goes with it?


MG four six eight
Bill Jacobson
Wa state
(324 posts)

Registered:
10/23/2007 02:15AM

Main British Car:
73 MGB Buick 215, Eaton/GM supercharger

Re: A/C
Posted by: MG four six eight
Date: July 24, 2016 05:02PM

Holly crap Jim, are you looking to freeze steaks in that thing!!!
One of the biggest challenges will be to find space for all of the plumbing and wiring, but I'm sure you'll be able to figure it out no prob!

If I can ever get around to restoring my C-GT, I would like to add A/C and electric power steering to it.

Bill


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: A/C
Posted by: BlownMGB-V8
Date: July 24, 2016 05:26PM

I think the condenser is about 28 x 16" and around 7/8" thick. The pump is a large displacement Sanden. Evap should be big enough not to freeze up I hope. Got a 2 ton TXV on it.

Well you know, it is a convertible after all. Takes a lot of capacity to A/C the outdoors. But I do have some experience, I once worked in a hot shop in the summer where I took a room A/C unit, mounted it on a cart, rolled it up to my work station and plugged it in. Got a few funny looks for that one but I really didn't care.

Jim


Charles
Charles Long
McDonald, TN
(177 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: A/C
Posted by: Charles
Date: July 26, 2016 10:50PM

Jim, have you explored mounting the evap. in the trunk and running duct to the front, or maybe using two (2) evaps. one for each side. The controls for two evaps already in use on today cars.

charles


MGBV8
Carl Floyd
Kingsport, TN
(4511 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: A/C
Posted by: MGBV8
Date: July 26, 2016 10:51PM

That is so cool that the ChumpCar is getting A/C!


DiDueColpi
Fred Key
West coast - Canada
(1365 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: A/C
Posted by: DiDueColpi
Date: July 26, 2016 11:12PM

Agreed Carl, but mounted on the hood like that it's only going to benefit the guy behind him!
On the other hand it's big enough that I should be able to feel it up here.

Live like you mean it.
Fred



BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: A/C
Posted by: BlownMGB-V8
Date: July 26, 2016 11:40PM

No, no no. You guys have got it all wrong. Didn't I say it was for my roadster? Not the Chump car. Not the trunk. Not the hood. Sheesh, you bunch are hopeless. Bunch a senile old...

Look it's very simple. Maximum overkill in the allowable space. Simply yank out the dash, throw all that away and there's plenty of room for A/C. What could be easier?

Jim


Nexxussian
Erik Johnson
Alaska
(62 posts)

Registered:
04/20/2015 10:32PM

Main British Car:
1974, MGB, Citroen Color Rover V8

Re: A/C
Posted by: Nexxussian
Date: July 27, 2016 01:56AM

No, no no. You guys have got it all wrong. Didn't I say it was for my roadster? Not the Chump car. Not the trunk. Not the hood. Sheesh, you bunch are hopeless. Bunch a senile old...

Look it's very simple. Maximum overkill in the allowable space. Simply yank out the dash, throw all that away and there's plenty of room for A/C. What could be easier?

Jim

:D


MGBV8
Carl Floyd
Kingsport, TN
(4511 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: A/C
Posted by: MGBV8
Date: July 27, 2016 09:16AM

I see what car it is mounted in. ;)


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: A/C
Posted by: BlownMGB-V8
Date: July 27, 2016 09:57AM

No! That was just for the picture! It can't go in the Chump car, that would just slow it down! In fact we should probably get rid of some weight. Do we really need that part of the body? We'll have a cage right? Maybe we can just chop out that part and toss it. And all that bodywork on the off side of the car, what's any of that doing for us? We can throw away that too, right?

Jim


MGBV8
Carl Floyd
Kingsport, TN
(4511 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: A/C
Posted by: MGBV8
Date: July 27, 2016 02:40PM

It would speed it up with all that cool air blasting towards the back of the car!


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: A/C
Posted by: Dan B
Date: July 27, 2016 06:45PM

Looks pretty cool!


Khan
Khan Caesar

(4 posts)

Registered:
08/04/2016 04:57AM

Main British Car:


Re: A/C
Posted by: Khan
Date: August 04, 2016 05:19AM

very nice in golf country


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: A/C
Posted by: BlownMGB-V8
Date: August 04, 2016 10:26AM

Well, the under-hood work is complete. The suction run was kept short outside but will cross the dash inside where the more heat it absorbs the better.
IMG_0001.JPG
adequate pulley clearance was found by using a "reduced diameter" hose for the high pressure line
IMG_0002.JPG
The dryer was tucked in tightly against the liquid separator for the intercooler system.
IMG_0003.JPG
And the liquid line was kept short inside but is run low outside where the more heat it sheds the better.
IMG_0005.JPG

The evaporator and dash will be a winter project, and maybe not this winter either. Lots of planning is required for that one.

Jim



rficalora
Rob Ficalora
Willis, TX
(2764 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: A/C
Posted by: rficalora
Date: August 06, 2016 01:49PM

Looking good Jim. Others may have different experience, but I've found AC to be useless with the soft top. So much hot air pours in around the door glass that on a 95-100° day, the cockpit is still in the upper 80's whenever I'm going about 25-30 mph or higher. That's why I got a hard top for the heat of the summer around here... But, I find I prefer the top down and only use the AC & hard top when my wife is with me.



Edited 1 time(s). Last edit at 08/08/2016 07:21PM by rficalora.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6468 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: A/C
Posted by: BlownMGB-V8
Date: August 06, 2016 05:07PM

All I want is a big vent that blows cold air in my face.

Jim


Charles
Charles Long
McDonald, TN
(177 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: A/C
Posted by: Charles
Date: August 08, 2016 09:56PM

Jim, Rob agree cooling a soft top like ours is like running a warm morning stove inside the frig. Both work real hard and get very little done.

Like Jim wrote, all I want is a cool breeze in my face and maybe in the foot wells.


MGBV8
Carl Floyd
Kingsport, TN
(4511 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: A/C
Posted by: MGBV8
Date: August 09, 2016 08:44AM

And maybe a vent aimed up your cargo shorts. ;)


pcmenten
Paul Menten

(242 posts)

Registered:
10/08/2009 10:40AM

Main British Car:


Re: A/C
Posted by: pcmenten
Date: August 09, 2016 12:15PM

Does it need to be in the dash? Can you run the lines behind the seats and mount it in back?
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