Search found 20 matches

by cadillac matt
Fri Sep 18, 2020 12:41 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

the funny thing is you can blow through it, it just only goes through the 1st inch or so.
by cadillac matt
Thu Sep 17, 2020 4:57 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

final update. after all the f-ing around, i figured it out. i bought a brand new custom evap core for this project. the core was partially obstructed. when the system was working, only the 1st inch or so of the core would get cold. the rest would be room temp. sent it back and they made me a new 1. ...
by cadillac matt
Mon Aug 10, 2020 8:22 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

it looks like a original type core with the inlet and outlet changed. i don't believe it's a parallel flow type. it's big.
by cadillac matt
Sun Aug 09, 2020 12:35 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

the way the system is designed is that 1 fan blows through 2 separate sets of ductwork. a flapper door switches between them with no blending. so on hot all the air comes out the floor or defrost, and on a/c all the air comes out the dash vents. all that seems to work. i had considered the core free...
by cadillac matt
Sat Aug 08, 2020 11:03 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

the condensor is cold and all the air is going through it. i sprayfoamed the core to the case so it's completely airtight. the way the system is, is 2 separate air ducts and vents and 1 fan. it even has 2 separate control heads for heat and a/c. i think it may need more airflow, but i'm not sure how...
by cadillac matt
Fri Aug 07, 2020 8:52 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

UPDATE: installed a brand new r4 style compressor using the holley bracket. no other changes. the psi's look better and it will cycle on and off, but still only getting 20* temp change. engine running approx 1500 rpm. max a/c in recirc posistion heater core shutoff, cooling fan running. approx 80* a...
by cadillac matt
Wed Jul 22, 2020 5:49 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

the r4 uses the same style blocks as the v7? thanks again guys. this has been very helpful.
by cadillac matt
Sun Jul 19, 2020 10:13 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

thanks tim for the recommendation. that r4 unit seems to have a small pulley. what rpm is that safe for? what hose blocks are available?
by cadillac matt
Wed Jul 15, 2020 4:12 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

thanks again.
by cadillac matt
Wed Jul 15, 2020 9:09 am
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 63
Views: 15658

Re: 1961 cadillac conversion

wow. more good info. thanks again! what would be a good brand for a new r4?

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