looking for a carb
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
looking for a carb
I have decided to buy a '86 or older f-1or250 with the 300, and I would like to run a 2brl carb. The carb will need to feed a 300 with headers,offy or clifford intake and a 264 or 270 cam, with, if I can afford it, some porting on the heads and I would like to raise the compression ratio. Does anybody now of any carbs that can keep the engine happy but don't cost more than $350. I have already thought about a weber 38, but they are pretty expensive. I would also like to get no worse than 15mpg.
Senior User
Joined: Jun 2004
Posts: 305
Likes: 1
I'm using a autolite/motorcraft 2150, commonly found on 302s & 351s. Its a simple, cheap carb that seems to work pretty well & is easily found in a junk yard. Look for a casting number of 1.08 or 1.12 (302 & 351 respectively).
If you can find one, holley had/has a 350 2bbl that works ok as well. Some guys use the holley 390 4bbl with good results.
Another thought as far as saving money, instead of headers, get the EFI exhaust manifolds off of an '87 or later 300. They're cheap, bolt right up & they'll last forever.
Just some thoughts. Good luck,
Edwin
If you can find one, holley had/has a 350 2bbl that works ok as well. Some guys use the holley 390 4bbl with good results.
Another thought as far as saving money, instead of headers, get the EFI exhaust manifolds off of an '87 or later 300. They're cheap, bolt right up & they'll last forever.
Just some thoughts. Good luck,
Edwin
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
Does motorcraft still make the 2150 carbs or would I have to go to the junk yard to find one? What kind of mpg would I get with the holley 390 4bbl? Also, about the exhaust manifold, I would prefer to get a header with dual outlet so I can run true dual exhaust. I am looking at Hedman header from summit part#HED-89300, but it is for 2wd, does anybody know wehter it would work on 4wd truck?
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
Way too many variables to project mpg on any vehicle...most of it is in the foot of the driver.
If you are going to get an F250 which is heavier than an F100 or F150 a cam bigger than a 260h type grind like this one http://www.cranecams.com/?show=browseParts&lvl=2&prt=5&Vehicle_Type=Truck&C ylinders=6&Engine_Make=FORD&Year=1986&Engine_Size= 300%20C.I.&partNumber=503905&partType=camshaft
or an Isky Mile-A-Mor or Comp 260h may prove to be unsatisfactory...the racier the cam the less friendly they are to heavier vehicles and the bigger cams may require more than a 2150 2v to make them happy.
The EFI manifolds are 3x2 so they can be dual or single out and they are virtually free of the problems that plague headers.
The first thing you should do is ask yourself what you are going to do with your vehicle and then build it to achieve that goal.
If you are going to get an F250 which is heavier than an F100 or F150 a cam bigger than a 260h type grind like this one http://www.cranecams.com/?show=browseParts&lvl=2&prt=5&Vehicle_Type=Truck&C ylinders=6&Engine_Make=FORD&Year=1986&Engine_Size= 300%20C.I.&partNumber=503905&partType=camshaft
or an Isky Mile-A-Mor or Comp 260h may prove to be unsatisfactory...the racier the cam the less friendly they are to heavier vehicles and the bigger cams may require more than a 2150 2v to make them happy.
The EFI manifolds are 3x2 so they can be dual or single out and they are virtually free of the problems that plague headers.
The first thing you should do is ask yourself what you are going to do with your vehicle and then build it to achieve that goal.
Last edited by Harte3; Oct 28, 2007 at 04:14 PM.
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
How bad would the idle be like for a comp cam 268H? I will look into the efi manifolds, what kind of hp and ft.-lbs. could I expect with offy D/P intake, efi manifolds, comp cam 260H K-kit, high flow exhaust system, and a little porting on the heads? and i have a fairly heavy foot, I learned how to drive a manual in '86 Mustang GT.
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
Post your projected engine specs here http://fordsix.com/forum/viewtopic.php?t=42347 and Bill will run it on the Desktop Dyno for you. Be specific and complete with the variables you are considering including the various carbs and cams you may be considering. Check out the threads on porting and valve grinding while you are at it.
The 268 may have a noticeable idle. Low end performance and mpg may suffer a bit.
Check out eBay. There are several rebuilders that have a variety of carbs listed plus holleyperformance has refurbished/new carbs at reasonable prices if you don't get in a bidding war. Do a search...cams, EFI manifolds, intakes, etc sometimes can be had for less than store bought too.
The 268 may have a noticeable idle. Low end performance and mpg may suffer a bit.
Check out eBay. There are several rebuilders that have a variety of carbs listed plus holleyperformance has refurbished/new carbs at reasonable prices if you don't get in a bidding war. Do a search...cams, EFI manifolds, intakes, etc sometimes can be had for less than store bought too.
Last edited by Harte3; Oct 28, 2007 at 10:13 PM.
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
thanks, if I run efi manifolds does anybody make hi-po downpipes or would I have to fab my own? Also, in my area I can't seem to find an '86 or older truck, I found an '89 f-250 with efi, would the stock computer be able to handle a comp cam 260H and high flowing exhaust? it is a manual, with 4x4.
Brett
Brett
Trending Topics
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
I think most of the EFI's use something like a Crane 509301 or 509305. I don't think the computer would handle a 260h but the best way to find out is call or E/mail the cam mfg's and ask what is available for computer controlled EFI engines. There is also a big thread some pages back on this subject.
Walker makes a down pipe suitable for stock replacement but ends up as a single out 2 1/2" which is entirely adequate but if you want to dual out that will be a DIY or muffler shop fabrication job.
Walker makes a down pipe suitable for stock replacement but ends up as a single out 2 1/2" which is entirely adequate but if you want to dual out that will be a DIY or muffler shop fabrication job.
Last edited by Harte3; Oct 30, 2007 at 08:44 PM.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
Crane cam specs say 1965-up, and comp cam specs say 1965-1996, so I don't know if they are including efi or not. On comp cams, all they have is a cam help form, and most of the info asked for is info that I don't have at this time, plus it seemed to like it is a form for asking them to make a cam for you engine, which would work, but I think it would be expensive. Any other advise on engine performance would be greatly appreciated.
Brett
Brett
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
https://www.ford-trucks.com/forums/5...installed.html
Do some research...there are 413 pages on this Forum alone...You have some work to do.
Do some research...there are 413 pages on this Forum alone...You have some work to do.
Thread Starter
|
Senior User
Joined: Sep 2007
Posts: 132
Likes: 0
I have started looking and I came across an article about putting bigger injectors into the 300 to get a little more power, will that work? I searched for more on that but I didn't find much. but they all said that you need an FRP, what is an FRP? hopefully I'm not askin too many ?s, but I'm still in high school and I don't have a whole lot of time to do searchs on here, but I'm tryin.
Brett
Brett
Postmaster
Joined: Dec 2006
Posts: 3,603
Likes: 10
From: Spokane, WA
Patience young man. Take the time to do your research, plan, adapt, improvise as necessary rather than being in a hurry and end up disappointed. Obtain a copy of a repair manual covering the vehicle you are interested in...like a Chiltons... and a copy of "How To Build Horsepower" by David Vizard and familiarize your self with your vehicle and what you can do with it for efficient and economical performance gains while avoiding the pitfalls of throwing expensive bolt-on wonders at your engine that only lighten your wallet without satisfactory results.
It took me over six months of researching this site,the FSP site, numerous parts manufacturers, catalogs, etc., before I touched my engine.
It took me over six months of researching this site,the FSP site, numerous parts manufacturers, catalogs, etc., before I touched my engine.
Logistics Pro
Joined: Aug 2003
Posts: 4,701
Likes: 6
I also am running the 2150. I had a 390, and my opinion on it is to save your $$. I could never get it to run right. They are infinitely tuneable, which is great if you want to fiddle with it all the time. I have an offy C series, 4 to 2 adapter, the 1.08 carb and headers. My straight timing is about 7. It runs great. You can get the carbs reman, or junkyard them and buy a rebuild kit for about $15.
Freshman User
Joined: Feb 2004
Posts: 46
Likes: 0
From: South East Alaska
I have a 2100 with 1.21v's that I am not going to use now. I had hoped to use a 4100 with 1.08v's but just broke down and purchased the holley 390 today. The 2100 with 1.21v's is supposed to be a 350cfm carb.
If you want it it's yours...you'd just have to pay for shipping.
If you want it it's yours...you'd just have to pay for shipping.