289 Ford SS carbs

Jim Caughlin · 12-21-2020, 01:36 PM

Looking at the different combos, has anyone tested the 1.08 vs 1.12 Autolite carbs performance difference? On the '64 iron head combos, 203HP rating for the small carb, 220 for the large carb in GT. Seems like the small carb would be the better option?

SSDiv6 · 12-21-2020, 02:30 PM

Quote:

Originally Posted by Jim Caughlin

Looking at the different combos, has anyone tested the 1.08 vs 1.12 Autolite carbs performance difference? On the '64 iron head combos, 203HP rating for the small carb, 220 for the large carb in GT. Seems like the small carb would be the better option?

Tony Denysenko may have some information based on testing that Alex (RIP) did.

Everett Hill · 12-21-2020, 04:07 PM

112 is 8hp more on dyno

Jim Caughlin · 12-21-2020, 07:15 PM

Quote:

Originally Posted by Everett Hill

112 is 8hp more on dyno

Wow, if that's all, the small carb at 203HP is definitely the better combo?

Bill Harris · 12-22-2020, 12:03 AM

Jim you have a PM.

Dyno · 12-22-2020, 02:51 AM

I believe that the 1.12 was referred as the Mercury carb.

Everett Hill · 12-22-2020, 12:08 PM

With better heads now it may show more hp this was 1990 when it was dyno. 1.12 were on 289 hipo and comet also on some 352 and 390

Jim Caughlin · 12-22-2020, 12:31 PM

I am currently building a '64 Comet for SS/MA, actually the car is well along and will be ready to test fire in the next few weeks. The motor is a '64 289 210/220 which is the big carb Merc motor combo. I just notice that the small carb Mustang motor is rated at 203 in GT RWD, that combo seems better so I am considering switching to GT/QA to take advantage of that combo, the only difference is the carb so not a big issue to change. If the smaller carb has minimal performance lose, this is sort of a no brainer.

In case anyone is wondering, I'm still racing my SS/FS Escort. The Comet was my racer that I have owned since I was a teenager, it's been sitting in the corner of the shop and finally putting it back together, not like I would ever sell it. As a sidenote, remember when we used to buy cars like this in the Nickel Ads for $500, swap your engine, trans and rearend in and go racing a few weeks later? A little more complicated and way more expensive now.

Jim Caughlin
SS 6019

bykr · 12-22-2020, 10:04 PM

Great to see another SS Ford small block coming out.

Joe Strunk · 12-26-2020, 10:27 AM

Jim

Congrats on the Comet, can't wait to see it!

I sent you a PM

Joe

12-21-2020, 01:36 PM	#1
Jim Caughlin Senior Member Join Date: Mar 2002 Location: Woodburn, Or Posts: 685 Likes: 82 Liked 805 Times in 245 Posts	289 Ford SS carbs Looking at the different combos, has anyone tested the 1.08 vs 1.12 Autolite carbs performance difference? On the '64 iron head combos, 203HP rating for the small carb, 220 for the large carb in GT. Seems like the small carb would be the better option?

12-21-2020, 04:07 PM	#3
Everett Hill Junior Member Join Date: Jun 2007 Posts: 49 Likes: 0 Liked 4 Times in 3 Posts	Re: 289 Ford SS carbs 112 is 8hp more on dyno __________________ Everett Hill 2134 STK, SS

12-22-2020, 12:03 AM	#5
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: 289 Ford SS carbs Jim you have a PM. __________________ Bill Harris ex 2172 STK ex 2272 S/S

12-22-2020, 02:51 AM	#6
Dyno Senior Member Join Date: Dec 2002 Posts: 918 Likes: 1,140 Liked 693 Times in 205 Posts	Re: 289 Ford SS carbs I believe that the 1.12 was referred as the Mercury carb.

12-22-2020, 12:08 PM	#7
Everett Hill Junior Member Join Date: Jun 2007 Posts: 49 Likes: 0 Liked 4 Times in 3 Posts	Re: 289 Ford SS carbs With better heads now it may show more hp this was 1990 when it was dyno. 1.12 were on 289 hipo and comet also on some 352 and 390 __________________ Everett Hill 2134 STK, SS

12-22-2020, 12:31 PM	#8
Jim Caughlin Senior Member Join Date: Mar 2002 Location: Woodburn, Or Posts: 685 Likes: 82 Liked 805 Times in 245 Posts	Re: 289 Ford SS carbs I am currently building a '64 Comet for SS/MA, actually the car is well along and will be ready to test fire in the next few weeks. The motor is a '64 289 210/220 which is the big carb Merc motor combo. I just notice that the small carb Mustang motor is rated at 203 in GT RWD, that combo seems better so I am considering switching to GT/QA to take advantage of that combo, the only difference is the carb so not a big issue to change. If the smaller carb has minimal performance lose, this is sort of a no brainer. In case anyone is wondering, I'm still racing my SS/FS Escort. The Comet was my racer that I have owned since I was a teenager, it's been sitting in the corner of the shop and finally putting it back together, not like I would ever sell it. As a sidenote, remember when we used to buy cars like this in the Nickel Ads for $500, swap your engine, trans and rearend in and go racing a few weeks later? A little more complicated and way more expensive now. Jim Caughlin SS 6019

12-22-2020, 10:04 PM	#9
bykr Member Join Date: Jan 2014 Location: SoCal Posts: 232 Likes: 274 Liked 167 Times in 81 Posts	Re: 289 Ford SS carbs Great to see another SS Ford small block coming out. __________________ Tim Schmackpfeffer 762 SS

12-26-2020, 10:27 AM	#10
Joe Strunk Junior Member Join Date: Nov 2010 Location: Tampa, Fl Posts: 37 Likes: 0 Liked 5 Times in 3 Posts	Re: 289 Ford SS carbs Jim Congrats on the Comet, can't wait to see it! I sent you a PM Joe __________________ [SIGPIC][/SIGPIC] SS/MA 2890 Anderson & Toren Comet