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Re: Which Thermoquad?
[Re: Secret Chimp]
#1260503
07/05/12 02:06 PM
07/05/12 02:06 PM
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Joined: Jan 2003
Posts: 1,758
Windsor, ON, Canada
Diplomat360
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,758
Windsor, ON, Canada
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I'd recommend the 9800 series carb...couple of the guys already mentioned them.
Look around and you'll find one. The nice thing about them is the electric choke, which means the sky's the limit now as far as intakes go, you simply take the choke with your carb and no worries about having the proper linkage to the intake choke well, etc. etc.
The 98xx series also has some performance appropriate changes (such as idle air-by pass passages) which may help...this of course depends on the cam/setup you are running. My 9800 has been OK, I still do not have enough run-time on it to tell though...running with a 238/244 cam so idle is a bit of an issue, although regulating the fuel pressure may have cured my problem (but that's another thread altogether...LOL).
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Re: Which Thermoquad?
[Re: Diplomat360]
#1260504
07/05/12 05:42 PM
07/05/12 05:42 PM
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Joined: Jul 2011
Posts: 817
Eugene, Oregon
Secret Chimp
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 817
Eugene, Oregon
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Quote:
I'd recommend the 9800 series carb...couple of the guys already mentioned them.
Look around and you'll find one. The nice thing about them is the electric choke, which means the sky's the limit now as far as intakes go, you simply take the choke with your carb and no worries about having the proper linkage to the intake choke well, etc. etc.
The 98xx series also has some performance appropriate changes (such as idle air-by pass passages) which may help...this of course depends on the cam/setup you are running. My 9800 has been OK, I still do not have enough run-time on it to tell though...running with a 238/244 cam so idle is a bit of an issue, although regulating the fuel pressure may have cured my problem (but that's another thread altogether...LOL).
How tunable are they versus other TQs? If I can't tune the primary tree half of the point of it is out the window for me already.
1967 Dodge Coronet Deluxe station wagon
1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s
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Re: Which Thermoquad?
[Re: Rug_Trucker]
#1260506
07/06/12 02:01 PM
07/06/12 02:01 PM
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Joined: Jan 2003
Posts: 5,270
Missouri
MY340
master
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master
Joined: Jan 2003
Posts: 5,270
Missouri
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I picked up a 9800 series GM linkage TQ one time when I was rebuilding TQ carbs. Ground the throttle shaft to get the GM linkage arm off and tackwelded a Mopar arm on to it. You can peen them in place probably with a center punch too.
1970 FE5 Duster 360/904/3.91's SOLD
1973 TB3 SpaceDuster 340/4spd/4.10's SOLD
Moparless for now but when the opportunity is right I'll have another one.
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Re: Which Thermoquad?
[Re: 13ChargerR/T AWD]
#1260509
07/08/12 12:55 PM
07/08/12 12:55 PM
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Joined: Jan 2003
Posts: 3,424
Portland Oregon
69Dartman
master
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master
Joined: Jan 2003
Posts: 3,424
Portland Oregon
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I have run a 9800 on my stock 318 in my dart forever as soon as I decided I wanted to try one back about 89 or so. Dennis and I threw a Mopar throttle shaft on the 9801 GM carb I found for 2 bucks, rebuilt it, and I ran it as is for about 15 years before it finally blew a O ring and had to be gone through again. It is hands down the smoothest running, best MPG carb of all the carbs I've tried and I'll never run another crappy square bore AFB/AVS or Holley again. Once you understand them they are easy to work on and tune, most people just don't have clue about them and stick with old tech because it's easy to deal with and looks normal. The metering rod tree can be adjusted to get everything just right as long as you are careful and don't go to far as the step up rod can get jammed on the step up cam inside the next time you hit WOT(don't ask me how I know)  I also have around 30 complete carbs and lots of parts, even finally found a strip kit though I had enough parts to change jets and metering rods on my own, which I have. The 9800 I had ran 95 jets, which I dropped to 92, but now I'm running 95 with bigger rods as it was hard to get rods small enough to make the extra lean jets work.
Life's a little bit better when you hit a Camaro.
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Re: Which Thermoquad?
[Re: 69Dartman]
#1260510
07/08/12 01:28 PM
07/08/12 01:28 PM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
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Quote:
The 9800 I had ran 95 jets, which I dropped to 92, but now I'm running 95 with bigger rods as it was hard to get rods small enough to make the extra lean jets work.
Ethanol will run leaner than regular gas. Yuou usually need to jet up 10% for E10.
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Re: Which Thermoquad?
[Re: Rug_Trucker]
#1260511
07/08/12 01:57 PM
07/08/12 01:57 PM
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Joined: Jan 2003
Posts: 3,424
Portland Oregon
69Dartman
master
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master
Joined: Jan 2003
Posts: 3,424
Portland Oregon
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Yeah, been through that before and have done it. The Dart also looses about a mile per gallon or more for the E-10 crap, and my Neon probably looses about 2mpg. It did run just fine with the 92's and the smallest rods I could find but figured it was a bit too far to one side as the 95's give me more room to adjust either way and I can run easier to find rod sizes to get it just right.
Life's a little bit better when you hit a Camaro.
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Re: Which Thermoquad?
[Re: kilroy]
#1260514
07/08/12 06:42 PM
07/08/12 06:42 PM
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Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
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I had had enough of the junk factory Holley on my 70 Bee. (1977) I bought a Street Dominator and tried to get a 9801 TQ new from the local speed shop. They had sold all their stock and we were waiting on a new production run. At the time Summit was selling new "750cfm" TQ's for less than $100. I bought a 9626 625cfm AFB. Should have bought from Summit. The AFB was fine. Got better mileage than the Holley.
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Which Thermoquad?
[Re: Rug_Trucker]
#1260515
07/11/12 02:58 PM
07/11/12 02:58 PM
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Joined: Jul 2011
Posts: 817
Eugene, Oregon
Secret Chimp
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 817
Eugene, Oregon
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A good-looking 9372S just popped up on Craigslist for $50. What would I need to do to make this work on my car? I don't know what the weird box on the side is for. Supposedly it has hookups for an O2 sensor as well as a bowl vent valve. http://images.craigslist.org/5Q25Eb5J23Fb3J93Hdc78e780f50c55c816a9.jpg
1967 Dodge Coronet Deluxe station wagon
1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s
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Re: Which Thermoquad?
[Re: Secret Chimp]
#1260516
07/11/12 07:53 PM
07/11/12 07:53 PM
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Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy
super stock
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super stock
Joined: Mar 2005
Posts: 862
Iowa State fan
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Honestly youll proably have the best luck with the grungiest greasest carb you can find, because that means it ran the longest.  As long as the carb is not oxides horribly the looks dont matter. DONT BUY THAT CARB, you will be frustrated with it unless your just collecting it for parts. what does matter is NO POLLUTION EQUIPMENT. The less extra plumbing the less fits you will have making it work right. If you have to and you are serious about the TQ pay the extra 25-50 for a none pollution carb. Im sure someone will sell you one if nothing else. Hell, Im heading up to Iola, WI swap meet tomorrow, Ill look for one for you.
1973 Charger, former SE, former auto
I'm not trying to be difficult, it comes naturally....
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Re: Which Thermoquad?
[Re: kilroy]
#1260517
07/11/12 09:25 PM
07/11/12 09:25 PM
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Joined: Jul 2011
Posts: 817
Eugene, Oregon
Secret Chimp
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 817
Eugene, Oregon
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Quote:
Honestly youll proably have the best luck with the grungiest greasest carb you can find, because that means it ran the longest. As long as the carb is not oxides horribly the looks dont matter.
DONT BUY THAT CARB, you will be frustrated with it unless your just collecting it for parts.
what does matter is NO POLLUTION EQUIPMENT. The less extra plumbing the less fits you will have making it work right. If you have to and you are serious about the TQ pay the extra 25-50 for a none pollution carb. Im sure someone will sell you one if nothing else.
Hell, Im heading up to Iola, WI swap meet tomorrow, Ill look for one for you.
I'd appreciate it, western Washington isn't the best for Mopar parts in general.
1967 Dodge Coronet Deluxe station wagon
1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s
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Re: Which Thermoquad?
[Re: Rug_Trucker]
#1260521
07/12/12 12:10 AM
07/12/12 12:10 AM
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Joined: Apr 2007
Posts: 2,327
Glendale, AZ
69L78Nova
Banned. Forever.
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Banned. Forever.
Joined: Apr 2007
Posts: 2,327
Glendale, AZ
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I've got a very nice 6322S that I just pulled recently. Very good running condition. PM me if you're interested
1969 Nova
454/M21/3.31
Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD
5.0/4R70W/3.55
(Daily driver)
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