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Eddy carb question

BSB67 said:
I don't think anyone answered your question, but I didnt watch the vids either.

The answer to your question: Yes. You can change the weight of the counter weights to activate the secondaries sooner and faster. I do drill holes in them so if you go to far, you can more easily go back and add the weight back in.
Click to expand...

This is right as I remember some stock class racers used to actually remove the weight from one side as they cut it off to make it open faster. But as has been said it is most likely working fine as its made to open slowly enough so the eng dont bog from it opening to fast. And removing some of the weight on the door as I heard some racers did can be tuff to put the weight back on if you remove to much. I like the idea of drilling the holes because they can be filled back in if need be with something like JB weld. Just be careful because if you get them to open to fast the eng may then have a big bog from to much air to fast for the fuel to catch up with it. Course you could always go to an AVS or Thermoquad where you can adjust the door spring tension and modify the choke pull-off which also controls the air door opening on the Thermoquad. Ron
 
Hilljack68 said:
Well, here's my objective: A weekend cruiser, not a drag strip car, gas mileage somewhere north of 12, the ability to punch it and pass that stupid Nova when I come up on it.
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It went from wanting a little more passing acceleration while driving, to 60 foot times and how much faster your car goes. Things seem to always get back to how much quicker my race car is. I don't think he is worrying about 60 foot times when going to the grocery store, although I really don't know and I am just doing what everybody else is doing and that is ASSUMING a lot of things. The OP hasn't answered for a while. Maybe he Got the info he wanted ? Got confused by all the "suggestions? " Sorry he asked the question ?
K.I.S.S. Simple suggestions and explanations shouldn't be that complicated. The part manufacturers have spent many more $$$ and time on R & D than any one ever will. They make different parts for different applications. Race cars only have to perform a few seconds at a time, far different from a car you are driving around the neighborhood or to the store with your family...
 
MoparLeo said:
It went from wanting a little more passing acceleration while driving, to 60 foot times and how much faster your car goes. Things seem to always get back to how much quicker my race car is. I don't think he is worrying about 60 foot times when going to the grocery store / Race cars only have to perform a few seconds at a time, far different from a car you are driving around the neighborhood or to the store with your family...
Click to expand...
Exactly! And yet we have members suggesting race mods and cutting up or off the counter weighted door that makes these carb good all around drivers.
A mod a suggest not to do.
 
MoparLeo said:
The OP hasn't answered for a while. Maybe he Got the info he wanted ? Got confused by all the "suggestions? " Sorry he asked the question ?
Click to expand...
Sorry, they kicked up our overtime at work, and the wife got uppity about the honey-do list. Plus the pissing contest earlier in the thread was a kill-joy. Keep it civil boys.
Anyway, I appreciate all the incite - sorry for not saying so earlier. I think before I engage the dart-throwing method, I may experiment with some different carbs. The TQ has my attention, and I need to do a little more digging into their pros and cons.
Hey, anyone between Columbus and Cleveland have an old TQ?? :lol:
 
Hilljack68 said:
Sorry, they kicked up our overtime at work, and the wife got uppity about the honey-do list. Plus the pissing contest earlier in the thread was a kill-joy. Keep it civil boys.
Anyway, I appreciate all the incite - sorry for not saying so earlier. I think before I engage the dart-throwing method, I may experiment with some different carbs. The TQ has my attention, and I need to do a little more digging into their pros and cons.
Hey, anyone between Columbus and Cleveland have an old TQ?? :lol:
Click to expand...
IMO...
The origional Carter Thermoquad carb is an excellent choice for street driving and an occasional stop light challenge. Remember that it is a spread bore design, small diameter primaries and large diameter secondaries which are adjustable via the secondary air valve's opening rate. The spread bore design requires the use of a corresponding manifold to allow the design to function as intended.....avoid the use of any adapter plate under the carb.
Consider....
Woodruff Carburetor Specialties for all of your carburetor restoration needs. At Woodruff Carburetor Specialties we specialize in a variety of auto repair services, including carburetor restoration, carburetor rebuild, and carburetor performance services. Visit us at: Woodruff Carburetor Specialties
He may have exactly what you need....plus he offers a discount for FBBO members....definitely worth a call or an email.
BOB RENTON
 
RJRENTON said:
The origional Carter Thermoquad carb is an excellent choice for street driving and an occasional stop light challenge. Remember that it is a spread bore design, small diameter primaries and large diameter secondaries which are adjustable via the secondary air valve's opening rate. The spread bore design requires the use of a corresponding manifold to allow the design to function as intended..
Click to expand...

Thanks Bob. Is the TQ compatible with my dual plane LD340 intake?
 
Hilljack68 said:
Thanks Bob. Is the TQ compatible with my dual plane LD340 intake?
Click to expand...
Not exactly sure....you should try a TQ base gasket on your LD 340 manifold to see if there is adequate sealing surfaces and to see if the TQ mounting drilling pattern is compatible with the manifold. An additional consideration may be the choke operation (choke coil's type and mounting arrangement). Pixs of the LD 340 appears that a TQ could fit ... but you need to verify b4 proceeding.
BOB RENTON
 
Thermoquades have an adjustable 2ndary adjustment and it takes two screw drivers to adjust them--light cars need heavier tension and heavy cars -C bodies need lighter tension--its all covered in the factory specs in the manuals-- and from Carter--and in the rebuild kits--generally they dont need adjusting unless some chevy guy started messing with them--also know this--the secondarys WILL NOT kick in untill the engine is up to tempeture--theres a lock out--if your still having trouble private message me and we'll talk on the phone
 
Hilljack68 said:
Thanks Bob. Is the TQ compatible with my dual plane LD340 intake?
Click to expand...

Not as cast but the intake can be modified to fit the TQ.
Use a TQ base to intake gasket as a guide. It’ll work, I know this because I ran one like this for a long time.

Also use a thick gasket when mounting the carb. Heat insulation is key for long life and cool running carbs.
 
hemidon1 said:
Thermoquades have an adjustable 2ndary adjustment and it takes two screw drivers to adjust them--light cars need heavier tension and heavy cars -C bodies need lighter tension--its all covered in the factory specs in the manuals-- and from Carter--and in the rebuild kits--generally they dont need adjusting unless some chevy guy started messing with them--also know this--the secondarys WILL NOT kick in untill the engine is up to tempeture--theres a lock out--if your still having trouble private message me and we'll talk on the phone
Click to expand...
Yes, the choke must fill be open in order for the secondary side to open. This can be re worked. If it is a hot street application, the choke pull off has a big play in how things work and when it happens.
 
--the secondarys WILL NOT kick in untill the engine is up to tempeture--theres a lock out--if your still having trouble private message me and we'll talk on the phone[/QUOTE]

Thats right as all 4 barrel carbs have secondary lockout until the choke opens. Ron
 
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