Autolite 2100 or 2150?

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StarDiero75
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Autolite 2100 or 2150?

Post #1 by StarDiero75 » Mon Aug 06, 2018 6:58 pm

Howdy guys,

I was looking for an Autolite 2100 that ill eventually do a direct mount on a 78'+ 200 head. After seeing a few pics online, it looks like i might've gotten an Autolite 2150. It came off a 71 F250 with a 390. I planned on rejetting it obviously.
Will it be an issue if i have the 2150 instead? It has a plunger on top in the air cleaner area which leads me to think its the 2150

Thanks guys,
Ryan
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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chad
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Re: Autolite 2100 or 2150?

Post #2 by chad » Mon Aug 06, 2018 7:22 pm

"...Will it be an issue..."
I think not.
However, if on in yrs ('80s) it might get into extra 'accessories' (vacumns, solinoids, etc).
Find the hand stamped on model numbers (side view of flange)...use Mike's Carbs to look up more info. He's even got pic'n vids.
HTH.

BTW: send me ur 32/36 when done! lol
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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StarDiero75
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Re: Autolite 2100 or 2150?

Post #3 by StarDiero75 » Mon Aug 06, 2018 7:26 pm

chad wrote:"...Will it be an issue..."
I think not.
However, if on in yrs ('80s) it might get into extra 'accessories' (vacumns, solinoids, etc).
Find the hand stamped on model numbers (side view of flange)...use Mike's Carbs to look up more info. He's even got pic'n vids.
HTH.

BTW: send me ur 32/36 when done! lol

I picked up a Motorcraft 5200 which is the Motorcraft equivalent of the 32/36. I can clean and rejet it for you for a fee lol.
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

mustang6
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Re: Autolite 2100 or 2150?

Post #4 by mustang6 » Tue Aug 07, 2018 3:38 am

A 2150 will work OK but that one has large venturis coming off a 390. What is the size (cast into the body, probably a 1.08 or 1.12 or larger)? you would better off trying to jet a smaller venturi carb off a small block.
Scott

68 Mustang 200 ci, Aussie 250-2V head, Dual Headers, Comp Cams 252H, DSII w/MSD 6AL, T-5, V8 suspension.

65 Ranchero 200 ci, late 170 head, Autolite 1101, 3.03 3 speed, Maverick 8" 4 lug rear with 3.55 gears.

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StarDiero75
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Re: Autolite 2100 or 2150?

Post #5 by StarDiero75 » Tue Aug 07, 2018 4:18 am

mustang6 wrote:A 2150 will work OK but that one has large venturis coming off a 390. What is the size (cast into the body, probably a 1.08 or 1.12 or larger)? you would better off trying to jet a smaller venturi carb off a small block.

Crap its a 1.21. What would be the issue with running the larger venturi? Slower air speed? More gas used?

Whats the size i should look for?
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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cr_bobcat
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Re: Autolite 2100 or 2150?

Post #6 by cr_bobcat » Tue Aug 07, 2018 9:46 am

A 1.21 could be used depending on how you have your engine set up. If you've ported a large log head and intend to run higher RPMs, then it'll work fine. Otherwise you could go with a 1.08 or 1.14. I ran a 1.14 and it worked great.
Block: Stock C8 Block/pistons, C9-M head, 1.75/1.5 valves, dual spring, 1.65 RAU Rockers, port divider, direct mount Holley 4412-500, HEI w/20* advance, manifold vac, dual-out Arvinode exhaust, Clay Smith 264/274 110* installed w/ 4* advance, adjustable dual chain timing, C4 w/ shift kit, 3.20 (TBC) rear ratio, 9.44 SCR / 7.97 DCR

Build that Six with parts from http://www.vintageinlines.com

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StarDiero75
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Re: Autolite 2100 or 2150?

Post #7 by StarDiero75 » Tue Aug 07, 2018 2:06 pm

cr_bobcat wrote:A 1.21 could be used depending on how you have your engine set up. If you've ported a large log head and intend to run higher RPMs, then it'll work fine. Otherwise you could go with a 1.08 or 1.14. I ran a 1.14 and it worked great.

Is it possible to counter the larger venturi with slightly smaller jets than what id usually use?
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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chad
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Re: Autolite 2100 or 2150?

Post #8 by chad » Tue Aug 07, 2018 9:08 pm

"...clean and rejet it ..."
as is would B beddah!
~ 01002 ~
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

CZLN6
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Re: Autolite 2100 or 2150?

Post #9 by CZLN6 » Fri Aug 10, 2018 7:18 pm

howdy Back Ryan:

I've been AFK this week. A 1.21 from a '80 390 cu, in a pickup will be rich on your 200. You can jet down some but the idle and transition functions are internal. My brother had a 1.21 from a 351 V8 in a Mustang. It worked out fairly well. I'm not sure of a truck 390 carb. Try it and see, then you tell us.

Adios, David
co-author of the Falcon Performance Handbook
http://www.falcon6handbook.com/

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StarDiero75
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Re: Autolite 2100 or 2150?

Post #10 by StarDiero75 » Sat Aug 11, 2018 12:33 am

CZLN6 wrote:howdy Back Ryan:

I've been AFK this week. A 1.21 from a '80 390 cu, in a pickup will be rich on your 200. You can jet down some but the idle and transition functions are internal. My brother had a 1.21 from a 351 V8 in a Mustang. It worked out fairly well. I'm not sure of a truck 390 carb. Try it and see, then you tell us.

Adios, David

So i found out its a 1.21 from a 71' 360. Itll still be rich though. If i plan to turbo charge it, will this be the one i want, since it runs rich?
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

drag-200stang
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Re: Autolite 2100 or 2150?

Post #11 by drag-200stang » Sat Aug 11, 2018 10:32 am

StarDiero75 wrote:
CZLN6 wrote:howdy Back Ryan:

I've been AFK this week. A 1.21 from a '80 390 cu, in a pickup will be rich on your 200. You can jet down some but the idle and transition functions are internal. My brother had a 1.21 from a 351 V8 in a Mustang. It worked out fairly well. I'm not sure of a truck 390 carb. Try it and see, then you tell us.

Adios, David

So i found out its a 1.21 from a 71' 360. Itll still be rich though. If i plan to turbo charge it, will this be the one i want, since it runs rich?

A carb works on suction,..the larger venturi designed for the 360 will suck more on the 360 and a smaller engine will suck less...It may or may not be rich, an air/fuel meter is the best way to know...Low speed drive ably could suffer because of the lower suction.
66 Mustang Coupe
200 turbo w/lenco 4-spd
stock adj. rockers, stock timing set, ARP studs
best 1/4 mile ET 9.85/best mph 139 on 8 lbs progressing to 15 lbs boost
Went 9's when 10's was fast.

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chad
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Turbo thread

Post #12 by chad » Sat Aug 11, 2018 11:12 am

viewforum.php?f=22
One place ta spend some time....
These guys godid down.
:twisted:
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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