Previous Thread
Next Thread
Print Thread
Rotary a/c compressor clearance issues with alum intake #1421405
04/17/13 07:47 PM
04/17/13 07:47 PM
Joined: Oct 2010
Posts: 162
Iowa
T
tt76400 Offline OP
member
tt76400  Offline OP
member
T

Joined: Oct 2010
Posts: 162
Iowa
Every alum intake I can find says "will not clear rotary AC compressor on 79 up models. What exactly is the problem and can it be adapted to work? I have a 1985 318 with air conditioning and would like to put my pro-comp air gap intake on it and also keep my AC, am I SOL or is there a way to make this work?

Re: Rotary a/c compressor clearance issues with alum intake [Re: tt76400] #1421406
04/17/13 07:55 PM
04/17/13 07:55 PM
Joined: Feb 2005
Posts: 672
Wichita, KS
T
tmef Online content
mopar
tmef  Online Content
mopar
T

Joined: Feb 2005
Posts: 672
Wichita, KS
I am looking at this to use with my Airgap.

http://www.bpeusa.com/BPE4732_BPE4733.asp

Re: Rotary a/c compressor clearance issues with alum intake [Re: tt76400] #1421407
04/17/13 08:18 PM
04/17/13 08:18 PM
Joined: Aug 2006
Posts: 8,064
Iowa
76dodgeboy Offline
master
76dodgeboy  Offline
master

Joined: Aug 2006
Posts: 8,064
Iowa
Thermostat location is the only issue I know of.

Re: Rotary a/c compressor clearance issues with alum intake [Re: 76dodgeboy] #1421408
04/17/13 08:32 PM
04/17/13 08:32 PM
Joined: Oct 2010
Posts: 162
Iowa
T
tt76400 Offline OP
member
tt76400  Offline OP
member
T

Joined: Oct 2010
Posts: 162
Iowa
I have heard that as well, what exactly does than mean? What will prevent me from swapping intakes on a mid 80's Dodge truck with AC?

Re: Rotary a/c compressor clearance issues with alum intake [Re: tt76400] #1421409
04/17/13 10:26 PM
04/17/13 10:26 PM
Joined: Aug 2006
Posts: 8,064
Iowa
76dodgeboy Offline
master
76dodgeboy  Offline
master

Joined: Aug 2006
Posts: 8,064
Iowa
The ac is center and can't reside in the same spot the thermostat and upper radiator hose sit. Hence the Offset of them on the early 80s when the swapped compressor. The 70s pump didn't hang clear back like the newer style so center t-stat was fine

Re: Rotary a/c compressor clearance issues with alum intake [Re: 76dodgeboy] #1421410
04/17/13 11:49 PM
04/17/13 11:49 PM
Joined: Jan 2003
Posts: 10,486
Freeport IL USA
poorboy Offline
I Live Here
poorboy  Offline
I Live Here

Joined: Jan 2003
Posts: 10,486
Freeport IL USA
The only way you could use the rotary pump with the older centered thermostat & hose connection would be to make a very sharp 90 bend to the hose connection, change the location of the thermostat, and raise the ac pump (make custom brackets & longer belts, and possibly modify the AC hoses), to accommodate the higher pump needed to clear the hose/thermostat housing. Sounds like a bunch of fun to me. Gene

Re: Rotary a/c compressor clearance issues with alum intake [Re: tt76400] #1421411
04/18/13 09:26 AM
04/18/13 09:26 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
the edelbrock 318/340/360 performer intake has both t-stat bolt patterns.

the large centerd one for older LA a/c comp.

the smaller off-center one for the sanden rotory comp.

hence 2 sizes for t-stat housing and stats, they have different bolt spacing and stat sizes.

this intake is not much if anything more than a stock intake but alum. for weight savings.

this is the only intake I know of that adresses this a/c problem and will solve it. plus use the stock q-jet with stock linkage.

you would use the smaller metal t-stat housing from the late model LA engines.

Re: Rotary a/c compressor clearance issues with alum intake [Re: tt76400] #1421412
04/23/13 03:26 AM
04/23/13 03:26 AM
Joined: May 2003
Posts: 1,751
Graham, WA
P
Polarapete Offline
top fuel
Polarapete  Offline
top fuel
P

Joined: May 2003
Posts: 1,751
Graham, WA
Just noticed this older post about SB AC and performance intakes. I just picked up an Edelbrock Performer 318 intake for my '87 D100. I now see why you were going to sacrifice your AC for performance. I will follow this thread to see where it goes.
I have attached a picture of the manifold I got from Baxter61 courtesy of Triple Threat.

7679081-DSCN4446.jpg (520 downloads)
Last edited by Polarapete; 04/23/13 03:35 AM.

1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
Re: Rotary a/c compressor clearance issues with alum intake [Re: Polarapete] #1421413
04/23/13 10:36 AM
04/23/13 10:36 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
Quote:

Just noticed this older post about SB AC and performance intakes. I just picked up an Edelbrock Performer 318 intake for my '87 D100. I now see why you were going to sacrifice your AC for performance. I will follow this thread to see where it goes.
I have attached a picture of the manifold I got from Baxter61 courtesy of Triple Threat.




I ran this intake for yrs with a q-jet and a edelbrock carb.

same performance as a stock cast iron intake,the runners are 340/360 size but neck down to a 318 port size the last 1" of the port opening.

responds well to gasket matching or open up to a 360 head port with gasket matching.

the best intake I used was the LD4B intake on the 318. even with large port heads the LD4B was a big improvment over the performer.

as you can see on the performer the t-stat housing has the smaller one moved over for the sanden rotory comp. clearance.


Last edited by scratchnfotraction; 04/23/13 10:40 AM.






Powered by UBB.threads™ PHP Forum Software 7.7.1