Intakes , intakes and more intakes

caddycarlo

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But the intake idea does lend itself to mounting just about any roots blower
 

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caddycarlo

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One of the problems with intakes on a Cadillac 501 type engine is shown in the picture below ... because of the eldorado drive they had to put the lowest intake I think any GM ever had ... so the port curves down to meet the iron intake ... when you bolt on something else like the edelbrock intake here the air has to make the turn and that costs in total flow cfm

Red is the edelbrock intake port
Black is a stock caddy port
Green is where the port needs to be
 

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PJ McCoy

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caddycarlo said:
And another relating to the HP with a edelbrock
This is what I was told on another forum, can't remember the name but one of our members is over there too. Cutlass forum. :scratchchin:
Anyway they recommend this exact build on the cheap. Waiting now for the better intake.
That's pretty exciting. Thanks for sharing. Do you remember what type of carb they used?
Do you think the BB Chevy headers with adapters would be similar?
 

caddycarlo

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That is the standard basic Cadillac build ... in such a build the edelbrock intake works well and looks better on the engine .... HP wise you can get same sort of power from a reworked stocker but not the same look ..sometimes it depends on hood clearance....

On headers I have made hoops of power with converted big block Chevy headers
 

boseephuss

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I found this build the other day, but nice to see it more concisely stated.

Is this the type of build that can be done without pulling the engine? I am learning from the ground up here, so sorry if the answer to that question should be obvious! haha

caddycarlo said:
That is the standard basic Cadillac build ... in such a build the edelbrock intake works well and looks better on the engine .... HP wise you can get same sort of power from a reworked stocker but not the same look ..sometimes it depends on hood clearance....

On headers I have made hoops of power with converted big block Chevy headers
 

caddycarlo

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Depends on the engine and the car....

On the engine if it's high mileage stocker then I like to at least take it apart and clean everything ...almost always the stock chain is bad ... next worry is piston clearance ...

On the car ...most don't have room to do cam swap in the car
 

boseephuss

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Ok, that makes sense. Thanks!

It is a 1972 engine that is staying in the original 72 Eldorado. I am getting ahead of myself as there are lots of little things to get to, but I like to plan ahead and pick up pieces as I go to be prepared for when I want to do any major work.

caddycarlo said:
Depends on the engine and the car....

On the engine if it's high mileage stocker then I like to at least take it apart and clean everything ...almost always the stock chain is bad ... next worry is piston clearance ...

On the car ...most don't have room to do cam swap in the car
 
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caddycarlo said:
I know Potter did like adding a plate to ones he ran ...
How successful was the install of the that curved plate ?

It would seem to be dividing the plenum. I think Weiand had a plate that could be installed in a single plane manifold (SBC). Don't know how it effected hp, torque, and rpms.

On a blower install I can see an advantage to a large plenum. On a carb install (preferably dual carb), a smaller divided plenum (perhaps even quartered, essentially four plenums served each by half a carb, or even four two barrels, one carb per quarter plenum. Also directional contouring in the plenum (to direct air/fuel flow) would probably help.

Sigh, someday when I have a lot more money.

John
 

caddycarlo

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I like this way better ... intake from second post above ...tried potter's tuning and did not help so did this and it worked ... basically made it like it should have been in the first place
 

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caddycarlo

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If we go back to talking about the as delivered edelbrock intake and look at the flash dyno test as compared to the Mts one above you can see both are very consistent with each other..

Flash dyno test

Stock engine 302.1 HP @ 3600
493.5 ft lbs @2600

Edelbrock intake. 322 HP @ 3600 rpm
486 ft lbs @ 2600

205 to cam. 347 HP @ 3800 rpm
516 ft lbs @ 3000

Headers. 357 HP @ 3800 rpm
531 ft lbs @ 3000

Rockers. 368 HP
522 ft lbs

Ported heads. 402 HP
528 ft lbs @ 3200 rpm
 

dave brode

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another unfinished project. FE single plane. Base from 1st design BD.
 

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