strange cooling

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grumpy old man
Posts: 29
Joined: Fri Jun 22, 2018 4:08 pm

Re: strange cooling

Postby grumpy old man » Sun Aug 26, 2018 2:39 pm

About the forum, there was an e mail that I glanced at that seemed to be alluding to the fact that this is an a/c forum and not a power train forum. I will have to dig through the e mails and look at it more carefully to see if I misread it. Not a major issue I just don't want to ruffle someones feathers.

The DELCO 1530851 manifold that points the discharge line forward, what about the suction line. The crimp sleeve on the suction line out of the accumulator is right at the rear of the compressor which makes it necessary for the hose to go forward, loop and return. The current hose arrangement has both hoses discharging forward with the suction line making a loop about a foot forward of the compressor and then returning back to the accumulator. There is no other way to run it which is why I am asking about a manifold that will point both lines forward.

With regards to the engine/trans. if this were an occasional driver it would not be an issue but as my daily driver I do not want something that causes me irritation. It is worth the time and money to me to make the LS swap and have something that I know will be what I am after. As for time, I can go through the engine and trans at my leisure get everything ready to drop in and in 3-4 days max have the old engine out and the new one in and running. I will just need to make sure that everyone understands that I will not be available during those days. (mostly my wife)

The way I look at it is by the time I buy a set of heads and have them made unleaded compatible, a cam and lifters, manifold and carb and a trans which will need to be overhauled and then install all of it on an unknown possibility that it will give me a package that I can live with, I might as well just go the LS route with known results. Down time where the vehicle will be unuseable will probably be a wash, money wise the LS swap will probably cost me about double.

I have been meaning to ask what is the popper in your picture? What is it for? I am guessing that it is what you are grinding camshafts for.
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bohica2xo
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Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: strange cooling

Postby bohica2xo » Sun Aug 26, 2018 4:31 pm

I do understand the daily driver issue - I was looking at a vintage ragtop as more of a weekend toy.

There are a lot of different GM manifold sets out there, and a lot of them interchange. A couple of them that come to mind are
GM 14081324 , 10135634, 14046042

You can do an image search for GM compressor hose sets or manifolds & go from there. Lots of choices.

The little side valve single in that pic is the baby of the line with a 2.75 bore 8 a 4.625 stroke. The ohv version goes all the way to 3.50 bore & 5.0 stroke. Yes I make the cams - and much of the rest of it too. Cranks are Truett & Osborn, Rods are Carrillo. Enough bottom end to run boost & nitromethane.
grumpy old man
Posts: 29
Joined: Fri Jun 22, 2018 4:08 pm

Re: strange cooling

Postby grumpy old man » Sun Aug 26, 2018 5:57 pm

But what are they for?

Back in the quarter midget days we used to do everything possible to squeeze a little more power out of a, I think it was a continental single cylinder. One of the questionable tricks was to support the camshaft lobe in a polished cradle and smack the top of the lobe with a big hammer to broaden out the lobe. then by using springs that had lost tension, a trial and error thing, you could use valve float to increase lift and duration.

Any part that could not be identified as authentic was not use able in the beginner class.
grumpy old man
Posts: 29
Joined: Fri Jun 22, 2018 4:08 pm

Re: strange cooling

Postby grumpy old man » Tue Aug 28, 2018 4:14 pm

I have a v7 compressor for a c5 corvette coming with a v belt clutch. Now I just have to build all new bracketts. I used to have a small structural steel shop so manipulating steel I understand.
grumpy old man
Posts: 29
Joined: Fri Jun 22, 2018 4:08 pm

Re: strange cooling

Postby grumpy old man » Mon Sep 17, 2018 3:46 pm

OK, I have been since last Wednesday afternoon installing the V7 compressor, had to fabricate all new brackets. As has been the norm for this A/C install everything was a problem but it is in nonetheless. Wonder if there is anyone out there that could use a compressor/alternator bracket and a Sanden compressor for a 389 Pontiac? Ah but I digress, it is on and running 41 degrees at the nozzle in the recirculating position with an ambient temperature of 80 degrees in the garage at idle (750rpm), bringing the engine rpm up only brings it down about a degree or two. Pressures at idle 275/20. I put the stock 98 ford orifice in, what are the chances that the white .072 orifice would bring the high side pressures down, or as it seems to be working just drive it and see how it does.

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