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Username Post: Thikston intake heat. Help!        (Topic#341670)
3rdelke 
Silver Supporting Member
Posts: 51
3rdelke
Reg: 12-06-16
01-04-17 08:25 AM - Post#2669277    

Sadly my brother passed before he finished his 50 Chevy Belair custom. its got split exhaust with a couple fittings, and a Thikston intake.
my understanding is the intake has to have some way to scavange heat in order for dual carbs to perform correctly. I may have some pics later.
thanks, Bob










 

50sChevys 
"14th Year" Gold Supporting Member
Posts: 1953
50sChevys
Age: 82
Loc: Central Texas
Reg: 03-23-02
01-04-17 10:04 AM - Post#2669291    
    In response to 3rdelke

Bob, I believe that is a Thickstun intake your referring to. Now a rare intake. Sure someone will have a 'suggestion' regarding your question. However, that intake did the job just the way it was manufactured and for what it's purpose was for in the first place... more power after the engine gets to operating temperature.

50s Chevys http://www.picturetrail.com/sfx/album/view/245196 4...


 
Bel Air kiwi 
"2nd Year" Silver Supporting Member
Posts: 2738
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
01-04-17 05:39 PM - Post#2669345    
    In response to 3rdelke

Hi and welcome 3rdelke. Your intake doesn't have to have a heat riser but depending on your climate and intended usage it is a preferable feature.
Without the heat riser the car will stumble and play up when cold which is due to the iron of the head and block not being a heat source to warm the intake charge, and the intake manifold loosing heat quickly.
If you live in a warm or temperate climate like Coastal California it may not ever be an issue. If you get snow and sub zero like up north it will be much more important.
It's easy to drive around not having it but you need to warm the car up before starting to move, and not drive the car hard in cold conditions. So if its a low mileage weekend car then you can get by.
There are a couple off ways of fixing it if it turns into an issue.

Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars


Edited by Bel Air kiwi on 01-04-17 05:40 PM. Reason for edit: No reason given.

 
mahlmann 
"6th Year" Gold Supporting Member
Posts: 1575
mahlmann
Age: 72
Loc: Sunnyvale, CA
Reg: 01-20-11
01-04-17 08:52 PM - Post#2669362    
    In response to 3rdelke

Depending on where you live, it could be okay without it. It's more desirable in cold areas.

Can you post a link to a picture? I think those manifolds are works of art.

Good luck with yours!



Mike Ahlmann
Las Cruces, NM
'50 Tin Woodies (two) Ramon and Willard
'58 Impala Sport Coupe
'69 El Camino SS-396
'96 Camaro RS
'07 Ford F150 to haul parts for above
'16 Ford Explorer 3.5 EcoBoost - Red Rocket


 
Bel Air kiwi 
"2nd Year" Silver Supporting Member
Posts: 2738
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
01-05-17 12:05 AM - Post#2669377    
    In response to mahlmann

Hi 3RD Elke. If your intake is like this type of Thickstun, the big square boss under the center is made to bolt to the stock exhaust and provide the heat supply. Some cast and after market tube headers don't have the matching stove that the factory exhaust manifold does. There are a couple of ways of fixing this and you can buy kits to do this.
It can be as simple as welding a hot box tube on your headers and a plate to match.
The factory system in the exhaust manifold was heat sensitive but they fail fairly regularly.
Most modern inline carb engines use the heater hoses to warm the manifold and an electric choke to cover until its up to temp.
Its pretty simple to make a basic water one of those if needed.
Late EFI engines don't use them as they vaporize the fuel out of the injector and if they are port type it doesn't have time to cool as its squirted straight into the head.

Cheers Kiwi

PS The standard test to see if you need heat is to tie a hamster to the intake manifold, close the hood and drive 10 miles. If the hamster is cooked right through then you don't need a heat soak. If its underdone then think about a heat stove.
Note don't use a frozen hamster. LOL.
Seriously if you warm the engine up an run it in neutral the intake should be almost too hot too touch. If not, the next sign is when you rev it up to say 3000 rpm and hold it and if condensation forms on the outside of the carb, there is an issue. I would do this on a dyno/ rolling road as adding load changes the problem. Also quick changes of throttle and load will tell you if there is an icing issue


Attachment: thickstun_top.jpg (8.38 KB) 5 View(s)




Attachment: thickstun_underside.JPG (16.57 KB) 4 View(s)




48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars


Edited by Bel Air kiwi on 01-05-17 12:07 AM. Reason for edit: No reason given.

 
3rdelke 
Silver Supporting Member
Posts: 51
3rdelke
Reg: 12-06-16
01-05-17 04:26 AM - Post#2669386    
    In response to Bel Air kiwi

bel air kiwi, that looks exactly like my setup, my exhaust headers do not have a provision to contact the intake. cannot figure out how to attach pics with a url. is there a way to send you a pic another way off site? cant wait to get this thing running and zip tie that hamster to intake, if my local pet store is out of hampsters will a plump young gerbil work?....thx, bob



 
Keith_Knox 
Moderator and "15th Year" Gold Supporting Member
Posts: 5518
Keith_Knox
Age: 75
Loc: Napa, Ca USA
Reg: 04-02-00
01-05-17 08:54 AM - Post#2669417    
    In response to 3rdelke

Welcome to ChevyTalk
Posting pictures.
http://www.chevytalk.org/fusionbb/showtopic.php?ti... by Tony, from a hosting site
Also if you become a supporting member you can post direct from your computer..



1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966
1996 Chevy Monte Carlo Donated 6/16
2013 F150 Crew Cab


 
wbeaton 
"2nd Year" Silver Supporting Member
Posts: 604
wbeaton
Age: 42
Loc: Hamilton, ON
Reg: 03-07-14
01-05-17 09:02 AM - Post#2669419    
    In response to Keith_Knox

Beautiful intake. Its easy enough to add hot water or exhaust heat to it. Most seem to prefer hot water. I split the original manifold on my engine so I could use the original stove and heat riser. It works really well.

1951 Chevy Styleline Deluxe 2 Door Sedan
1954 235 with Isky Cam, Shaved Head
Dual Carter YF 787S Carbs on Offenhauser Intake
Split Manifold Dual Exhaust
3 Speed with 3.55 Differential
12V Conversion with Alternator
Pertronix Ignition


 
2blu52 
"16th Year" Silver Supporting Member
Posts: 17735
2blu52
Age: 83
Loc: Montana
Reg: 03-12-02
01-05-17 10:31 AM - Post#2669443    
    In response to wbeaton

  • wbeaton Said:
Beautiful intake. Its easy enough to add hot water or exhaust heat to it. Most seem to prefer hot water. I split the original manifold on my engine so I could use the original stove and heat riser. It works really well.


When I put headers on 2blu I went with the kit that came with the headers. It was exhaust heat furnished by onetube to the base of the intake. It does not work.Two tubes one from the front header and one from the rear allow for a pulsing action that moves the hot air through the base. My tail pipes were coal black with soot. There was no way to hook a second pipe into the system. I purchased a Tom Langdon hot water kit and installed that. Not perfect but much better results. The langdon ktt circulates water from the block before it enters the thermostat housing so one does not have to wait for the thermostat to open before getting heat. Around here just about any morning is cool enough that heat on the intake makes for much better drive-ability.


"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
3rdelke 
Silver Supporting Member
Posts: 51
3rdelke
Reg: 12-06-16
01-05-17 03:12 PM - Post#2669499    
    In response to 2blu52

yea, I called them, she said since I just have provision for two bolts under this thikston, it got way complicated. thx



 
3rdelke 
Silver Supporting Member
Posts: 51
3rdelke
Reg: 12-06-16
01-05-17 03:27 PM - Post#2669505    
    In response to wbeaton

love your car, mine is a 51 belair, 235, 4speed posi



 
Bel Air kiwi 
"2nd Year" Silver Supporting Member
Posts: 2738
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
01-05-17 11:41 PM - Post#2669574    
    In response to 3rdelke

Hi Bob, you have to be careful with Gerbils as you never know where they have been.

I wrote you a great big long response on how to go about testing, trialing, and making a wet system that will work real fine.
But my computer glitched and dumped the lot.
So I had a tanty and a sulk.

So here's the deal! If you Join up as a supporting member and show that commitment to our community I am happy to redo it all with pictures and explanations as to how I did this on OE vehicles. There is more knowledge and direct experience in the venerable senior members aging minds here than you will ever need to know about any aspect of you late brother's car. Most times they will tell you an answer to a problem you didn't know you had, before you realize you have it.
As an example: If your 51 Bel Air was a 52 Bel Air then some aftermarket cast iron headers and tubular pipes don't fit because of the engine mount change, and if you have bought and ceramic coated a set of Fenton splits that wont work as is, you are way out of pocket. Some one will buy them but not for what you just paid.
Knowledge and experience is king in old car restoration. And if its been done to our era cars someone here will have already done it two or three different ways; or know why it doesn't work.

Cheers Kiwi


48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars


Edited by Bel Air kiwi on 01-05-17 11:42 PM. Reason for edit: No reason given.

 
3rdelke 
Silver Supporting Member
Posts: 51
3rdelke
Reg: 12-06-16
01-06-17 12:08 PM - Post#2669668    
    In response to Bel Air kiwi

kiwi, may very well become a member. right now I don't even have any good snaps that shows what I have. will be over there in a few days when my new gas tank arrives and the weather warms up. he has the tubular headers on it now. thx, bob



 

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