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04-26-2009, 09:23 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
48 IDA Weber Coolant Bypass
I've been trying to come up with a usefull solutuion for the cold running 289/302 with the 48 IDA's using the dual outlet intake manifold. I have tried several different attempted remidies (as many of you have) but to no avail. It will warm up in the driveway but as soon as it has air passing through the radiator the temps drop to indicated to 150-155 unless its 100 degrees outside. I think these modifications will solve the problem. I just have the Fuel log/coolant manifold and lower radiator hose with the parts mocked up but will get them welded later this week (after bead blasting the color off the red fitting). Today while handling the parts, I realized the thermostat could be discretely attached to the outlet neck with some stainless safety wire. This will allow the fitting to be welded quite close to the thermostat and circulate the heated coolant close to it. The dakened areas at the hose attaching points are stains from the coolant.
[IMG]  [/IMG]
This is what it looks like installed
[IMG]  [/IMG]
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 05-06-2009 at 08:32 PM..
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05-06-2009, 08:39 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
I wish I had done this last year! Today was the first chance I had to start and run the engine for any length of time. I was very pleased to see the engine warm up in about 7 minutes while idleing, all the hoses got toasty warm, as the thermostat was begining to open the upper hose got warm and there were no big temprature swings as before when the thermostat with small holes was in the upper hose. So far all indications are that this system will work VERY well.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
Last edited by Rick Parker; 07-22-2009 at 09:56 PM..
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05-07-2009, 03:22 AM
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CC Member
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Join Date: Feb 2006
Location: Gore. New Zealand.,
SI
Cobra Make, Engine: DIY Coupe, F/T ,MkIV.
Posts: 808
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Not Ranked
Good to see some 'splinters' are pointing in the right direction Rick.
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Jac Mac
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05-07-2009, 10:25 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Thanks........I'm glad to be the Guina Pig, perhaps others will follow suit? Well worth the effort.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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05-08-2009, 10:31 AM
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Club Cobra Member
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Join Date: Nov 1999
Location: Salem,,
NJ
Cobra Make, Engine: ERA 289 FIA #2100 Rio Red Wimbledon White Stripes 302 stroked to 331 Webers Richmond Road Race 5 speed
Posts: 782
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Not Ranked
Rick, Nice job! I'll be ripping mine apart shortly. Thanks for sharing all your hard work.
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 Snakebit
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05-09-2009, 07:18 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Thanks Snakebit
If you have the cast crossover, you may need to open up the end a little to allow the thermostat to fit.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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05-22-2009, 08:02 PM
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Club Cobra Member
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Join Date: Nov 1999
Location: Salem,,
NJ
Cobra Make, Engine: ERA 289 FIA #2100 Rio Red Wimbledon White Stripes 302 stroked to 331 Webers Richmond Road Race 5 speed
Posts: 782
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Not Ranked
Just finished doing some creative plumbing to my dual outlet Weber manifold. I was able to route the bypass to the water pump inlet. I will add coolant tomorrow and give her a spin. I'll find out if she will run at 180 instead of 150.
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Snakebit
Last edited by Snakebit; 05-22-2009 at 08:41 PM..
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05-22-2009, 08:13 PM
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Senior Club Cobra Member
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Join Date: Jan 2004
Location: St. Louis,
Mo.
Cobra Make, Engine: 427 S.O. Dual Quad / Cobra undecided
Posts: 1,380
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Not Ranked
Really trick stuff Rick.
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05-22-2009, 08:22 PM
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Club Cobra Member
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Join Date: Nov 1999
Location: Salem,,
NJ
Cobra Make, Engine: ERA 289 FIA #2100 Rio Red Wimbledon White Stripes 302 stroked to 331 Webers Richmond Road Race 5 speed
Posts: 782
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Not Ranked
Bottom view of dual water outlet.
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Snakebit
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05-22-2009, 11:09 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
To function correctly it must have a thermostat at the outlet of manifold, near where the coolant is diverted from (thank you JacMac), if it is out further in the upper hose it will not work as effectively. Use stainless wire to keep it in place, good job on your part. I had no clearance for that type of routing. In my application the cross over tube sits right on top of the plugged outlet from the water pump. The water pump I have is the very early type , aluminum w/o a backing plate.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
Last edited by Rick Parker; 05-23-2009 at 12:41 PM..
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05-24-2009, 12:06 PM
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Club Cobra Member
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Join Date: Nov 1999
Location: Salem,,
NJ
Cobra Make, Engine: ERA 289 FIA #2100 Rio Red Wimbledon White Stripes 302 stroked to 331 Webers Richmond Road Race 5 speed
Posts: 782
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Not Ranked
Took the Cobra out for a spin. Temp here in South Jersey was around 80. It warmed up to 180 as usual, but the proof would be running down the open road with the air blowing through that big radiator. IT WORKS! With the by pass hose installed the temp stays between 180 to 190 without the fan switched on. Stop at a light and it stays right at 180. Rick, you hit a home run on this one. Thanks!
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Snakebit
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05-24-2009, 12:13 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Just try'n to help Brotha 
It's great when it works as planned & designed.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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06-16-2009, 02:24 PM
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CC Member
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Join Date: Jun 2009
Location: Israel,
Ran
Cobra Make, Engine: Israel
Posts: 8
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Not Ranked
48 IDA Weber Coolant Bypass
Just wondering if anyone knows of any point in fitting samco coolant hoses what difference could they possibly make except look pretty for the ladies?
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06-16-2009, 07:12 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Leave the Bling to the Ricers. Use good quality hoses,and your wallet will not be as empty.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
Last edited by Rick Parker; 06-16-2009 at 09:03 PM..
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09-10-2009, 07:51 PM
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CC Member
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Join Date: May 2006
Location: Portland,
OR
Cobra Make, Engine: ERA FIA, 1964 289->Webers
Posts: 3,689
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Not Ranked
I'm finally catching up with my emails, Rick. Been a busy last few weeks. Great work! Maybe you should sell these units. Looks great!
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ERA FIA 2088
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01-23-2012, 06:19 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
Do you guys know the diameter and center distance on the coolant tubes? I have access to a couple of IDF set ups but not the IDA with twin tubes.
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01-23-2012, 06:49 PM
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CC Member
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Join Date: May 2006
Location: Portland,
OR
Cobra Make, Engine: ERA FIA, 1964 289->Webers
Posts: 3,689
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Not Ranked
I can measure tomorrow. The tubes should be 1-1/4" dia., I believe. The center to center, I think, was around 5". I'll check tomorrow.
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ERA FIA 2088
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01-23-2012, 06:53 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
That would be awesome thanks. Mapquest says you're 3 hrs from me. We'll have to get together over the loooong winter.
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01-23-2012, 07:57 PM
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CC Member
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Join Date: Jun 2010
Cobra Make, Engine: Viking Blue "64" 289 FIA comp car by Superformance #0002, Keith Craft - 331 (460HP), Jim Inglese - 48IDA Weber carbs, BW T10 4spd.
Posts: 430
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Not Ranked
........................
Last edited by LightNFast; 09-01-2012 at 10:35 AM..
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01-24-2012, 03:17 AM
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CC Member
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Join Date: May 2006
Location: Portland,
OR
Cobra Make, Engine: ERA FIA, 1964 289->Webers
Posts: 3,689
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Not Ranked
Quote:
Originally Posted by LightNFast
It’s a rough casting but here you go for what it’s worth:
Blue Thunder “Cobra” 289 IDA.
Micrometer reads:
Dia. = 1.27 without bead
Inside distance (between tubes) = 3.89
On center = 5.16
So this coincides with *13* … 1-1/4" dia. and 5".
Good luck.
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For once, my memory serves me pretty well...
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ERA FIA 2088
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