EFI vs. Carb
Forums at Modded Mustangs
Home Register FAQ Members List Calendar Blogs Garage Gallery Search Today's Posts Mark Forums Read Insurance


Go Back   Forums at Modded Mustangs > Mustang Forums > 5.0 Mustangs

ModdedMustangs.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old August 29th, 2007, 01:54 AM   #1
Newbie
 
 
Join Date: May 2007
Location: Kernersville, NC
Posts: 20
gtstang87 is on a distinguished road
iTrader: 0 reviews
Default

EFI vs. Carb


Ive got a 88 lx coupe. It was a factory 4 cylinder car, the i guy i bought it from swaped in a 302 but converted it to carb. I have heard good and bad things about carb but i considering converting it back to EFI. I am looking at getting a supercharger thats why i want to switch it. What all is going to be needed to convert it back. Intake, Injectors, Harness, Computer. Since it was a factory 4 cylinder car will the entire harness need to be changed or can i just get a hold of an EFI harness and plug it in.
  Reply With Quote
Sponsored Links
Advertisement
 
Old August 29th, 2007, 09:10 AM   #2
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

Get a complete harness and computer from a junk yard. Swapping back to EFI is not a big deal at all. You will obviously need all of the sensors as well.
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old August 29th, 2007, 11:27 AM   #3
MSO
Banned
 
 
Join Date: Jul 2006
Location: アメリカ
Posts: 5,933
MSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the rough
iTrader: 0 reviews
Send a message via AIM to MSO
Default

dont u need dif fuel lines too?
__________________
[SIGPIC][/SIGPIC]
[SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE]
Edited By Moderator. Next time will be a ban.
  Reply With Quote
Old August 29th, 2007, 11:34 AM   #4
Enthusiast
 
 
Join Date: Oct 2006
Location: Augusta, GA
Posts: 906
mikebert is on a distinguished road
iTrader: 0 reviews
Send a message via AIM to mikebert Send a message via MSN to mikebert
Default

Originally Posted by My'StangOpens
dont u need dif fuel lines too?
Depends on the conversion. You can keep the stock lines and pump with the right regulator. It's something he'll have to tell us about.
  Reply With Quote
Old August 29th, 2007, 01:38 PM   #5
MM Fanatic
 
ryans88gt's Avatar
 
 
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,737
ryans88gt has a spectacular aura aboutryans88gt has a spectacular aura aboutryans88gt has a spectacular aura about
iTrader: 0 reviews
Default

Why not just use a blow through carb?
__________________
88 GT CHI headed 351w 10.8 @ 125 - still figuring it out.
03 Cobra 2.3 whipple 10.7 @ 129 - sold it
04 Mach 1 12.7 @ 109 mostly stock - sold it
89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

  Reply With Quote
Old August 30th, 2007, 01:36 AM   #6
Newbie
 
 
Join Date: May 2007
Location: Kernersville, NC
Posts: 20
gtstang87 is on a distinguished road
iTrader: 0 reviews
Default

As far as i know the stock fuel lines are used, i am not sure if there different in a 4 cylinder car the fuel line is on the passenger side towards the front its looks like theres two but only one is used running through a regulator up to my carb. Are a 302 fuel lines in a different location?
  Reply With Quote
Old August 30th, 2007, 01:40 AM   #7
I Post Entirely Way Too Much
 
Speedstang302's Avatar
 
1996 Mustang GT
13.64@101mph
 
Join Date: Apr 2007
Location: Massachusetss
Posts: 5,828
Speedstang302 will become famous soon enoughSpeedstang302 will become famous soon enough
iTrader: 1 reviews
Default

just run carb, its way easier to work on, you can tweek little things on the carb to get performance rather than buying like 10 things to do that 1 thing for fuel injected..a nice carb, intake, heads, cam and exhuast..the thing will tear..
__________________

1990 GT- GT40p Heads| Anderson N41 cam| Crane 1.6 RR's| Trickflow Intake|MGW Short Throw| Aluminum d/s| 3.73's.....still slow....
  Reply With Quote
Old August 30th, 2007, 01:42 AM   #8
I Post Entirely Way Too Much
 
Speedstang302's Avatar
 
1996 Mustang GT
13.64@101mph
 
Join Date: Apr 2007
Location: Massachusetss
Posts: 5,828
Speedstang302 will become famous soon enoughSpeedstang302 will become famous soon enough
iTrader: 1 reviews
Default

Re: EFI vs. Carb


Originally Posted by gtstang87
Ive got a 88 lx coupe. It was a factory 4 cylinder car, the i guy i bought it from swaped in a 302 but converted it to carb. I have heard good and bad things about carb but i considering converting it back to EFI. I am looking at getting a supercharger thats why i want to switch it. What all is going to be needed to convert it back. Intake, Injectors, Harness, Computer. Since it was a factory 4 cylinder car will the entire harness need to be changed or can i just get a hold of an EFI harness and plug it in.
"I am looking at getting a supercharger thats why i want to switch it."

you know you can run a super charger on a carbed motor right..and there more of a bolt on install..with FI motor you have to change injectors, FPR, fuel pump, MAF, computer and everything else.jpjp.but is way easier for carbed..
__________________

1990 GT- GT40p Heads| Anderson N41 cam| Crane 1.6 RR's| Trickflow Intake|MGW Short Throw| Aluminum d/s| 3.73's.....still slow....
  Reply With Quote
Old August 30th, 2007, 11:25 AM   #9
Newbie
 
 
Join Date: May 2007
Location: Kernersville, NC
Posts: 20
gtstang87 is on a distinguished road
iTrader: 0 reviews
Default

Yea but don't you have to get a special carb to run a supercharger. And i heard that it is hard to tune.
  Reply With Quote
Old August 30th, 2007, 11:40 AM   #10
MSO
Banned
 
 
Join Date: Jul 2006
Location: アメリカ
Posts: 5,933
MSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the rough
iTrader: 0 reviews
Send a message via AIM to MSO
Default

Originally Posted by gtstang87
Yea but don't you have to get a special carb to run a supercharger. And i heard that it is hard to tune.
tune a carb?

i thought all you did was jet it?

__________________
[SIGPIC][/SIGPIC]
[SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE]
Edited By Moderator. Next time will be a ban.
  Reply With Quote
Old August 30th, 2007, 12:55 PM   #11
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

Originally Posted by gtstang87
Yea but don't you have to get a special carb to run a supercharger. And i heard that it is hard to tune.
Yes, it needs to be modified to be used as a blow thru which you can do yourself or you need to get an enclosure for the carb that various companies such as Vortech sell.
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old August 30th, 2007, 12:57 PM   #12
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

Originally Posted by My'StangOpens

tune a carb?

i thought all you did was jet it?

That is funny because most people think all you have to do is jet the carb. There is so much more to a carburetor. We picked up 37 horsepower just by changing air bleeds in my carb. There is alot more to carburetion than people think. Carburetors are not just bolt on and go.......well you can bolt them on and go but you will be leaving a ton of power under the table.
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old August 30th, 2007, 01:00 PM   #13
I Have Many Leather Bound Books
 
TheUNZippee!'s Avatar
 
 
Join Date: Jan 2007
Location: Hoose
Posts: 64,723
Blog Entries: 1
TheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond repute
iTrader: 0 reviews
Send a message via AIM to TheUNZippee!
Default

Air bleeds, power valves, jets, float height.....
__________________




BONER CREW EMPLOYEE - BWAL, CEO

Originally Posted by My Wife
"That's what rams do, Rick! He's not being a bad ram. He has no other rams to ram with. He needed to ram!"

Originally Posted by xocolleenox View Post
Would've liked a direct ass end shot.
  Reply With Quote
Old August 30th, 2007, 01:26 PM   #14
MSO
Banned
 
 
Join Date: Jul 2006
Location: アメリカ
Posts: 5,933
MSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the rough
iTrader: 0 reviews
Send a message via AIM to MSO
Default

but for the most part its not really "tuning" as in EFI

more like.. adjusting, like suspension to get the best ride quality

__________________
[SIGPIC][/SIGPIC]
[SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE]
Edited By Moderator. Next time will be a ban.
  Reply With Quote
Old August 30th, 2007, 01:28 PM   #15
I Have Many Leather Bound Books
 
TheUNZippee!'s Avatar
 
 
Join Date: Jan 2007
Location: Hoose
Posts: 64,723
Blog Entries: 1
TheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond reputeTheUNZippee! has a reputation beyond repute
iTrader: 0 reviews
Send a message via AIM to TheUNZippee!
Default

tune /tun, tyun/ Pronunciation Key - Show Spelled Pronunciation[toon, tyoon] Pronunciation Key - Show IPA Pronunciation noun, verb, tuned, tun·ing.
–noun

to adjust (a motor, mechanism, or the like) for proper functioning.

__________________




BONER CREW EMPLOYEE - BWAL, CEO

Originally Posted by My Wife
"That's what rams do, Rick! He's not being a bad ram. He has no other rams to ram with. He needed to ram!"

Originally Posted by xocolleenox View Post
Would've liked a direct ass end shot.
  Reply With Quote
Old August 30th, 2007, 01:29 PM   #16
MSO
Banned
 
 
Join Date: Jul 2006
Location: アメリカ
Posts: 5,933
MSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the rough
iTrader: 0 reviews
Send a message via AIM to MSO
Default

arr

you cant use my word to define yours

__________________
[SIGPIC][/SIGPIC]
[SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE]
Edited By Moderator. Next time will be a ban.
  Reply With Quote
Old August 30th, 2007, 01:31 PM   #17
Newbie
 
 
Join Date: May 2007
Location: Kernersville, NC
Posts: 20
gtstang87 is on a distinguished road
iTrader: 0 reviews
Default

Does anyone around have a good daily driven carb setup. I really want something reliable that i don't have to fight to crank everytime i drive it. I have a eldelbrock carb now if i keep it carb i would like to get a holley. What are some good choices? As far as supercharging it i am in no hurry my car makes good power with the set up i have it just needs to be cleaned up a bit, and i hate having to pop the hood and flip the choke to crank it if it hasnt been run in a while.
  Reply With Quote
Old August 30th, 2007, 01:33 PM   #18
MSO
Banned
 
 
Join Date: Jul 2006
Location: アメリカ
Posts: 5,933
MSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the roughMSO is a jewel in the rough
iTrader: 0 reviews
Send a message via AIM to MSO
Default

Originally Posted by gtstang87
Does anyone around have a good daily driven carb setup. I really want something reliable that i don't have to fight to crank everytime i drive it. I have a eldelbrock carb now if i keep it carb i would like to get a holley. What are some good choices? As far as supercharging it i am in no hurry my car makes good power with the set up i have it just needs to be cleaned up a bit, and i hate having to pop the hood and flip the choke to crank it if it hasnt been run in a while.
if you tune it right it shudnt be hard to start up

my gramps got a carb'd 302 in his crown vic and it never has any problems (until winter time)
__________________
[SIGPIC][/SIGPIC]
[SIZE="5"][FONT="Arial Black"]OBEY THE FACE![/FONT][/SIZE]
Edited By Moderator. Next time will be a ban.
  Reply With Quote
Old August 30th, 2007, 03:17 PM   #19
MM Fanatic
 
ryans88gt's Avatar
 
 
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,737
ryans88gt has a spectacular aura aboutryans88gt has a spectacular aura aboutryans88gt has a spectacular aura about
iTrader: 0 reviews
Default

My carbed 88 has better driveability than my EFI 89. They both run 11s 1/4 miles. The carbed car starts right up, idles smoothly and never surges. My EFI car surges under load below 1500 rpms and idle surges on start up everytime for about 10 seconds. The EFI car gets about 5 mpg more in town, but the engine is also 50 cubes smaller.

I don't drive either in the winter, but if I had a death wish and liked to drive my fox mustang in the snow, I'd opt for EFI or an electronic choked carb.

As for tuning a carb, people usually start with the main jets and then "F" the carb up so bad and then can't figure out why they can't tune it in. Fine tuning should be done with the air bleeds like Darrell said, unfortunately 4150 holley carbs don't come with serviceable air bleeds. The main jets are only for large changes and affect the A/F throughout te RPM range at WOT. If you buy a decent carb that is set up for your application the main jets should already be correct or at least very close. For a blow through carb, you are looking at a totally different animal and your best bet is to buy one from a reputable builder/ tuner. There is a whole forum section of turbomustangs.com about blow-through carbs.
  Reply With Quote
Old August 30th, 2007, 03:31 PM   #20
Newbie
 
 
Join Date: May 2007
Location: Kernersville, NC
Posts: 20
gtstang87 is on a distinguished road
iTrader: 0 reviews
Default

What would be a good carb for a stock 302. I might get a pair of gt 40 heads or some other mild flowing heads. Ive got a AED throttle cable bracket but it doesnt fit my eldelbrock carb very well i kinda had to make it work. Its made for a holley. I am new to carburators would a 650 cfm holley be a good choice?
  Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools


Threads Similar to: EFI vs. Carb
Thread Thread Starter Forum Replies Last Post
CARB OR EFI BLACKNIGHT5.0 94-95 10 August 16th, 2007 03:39 PM
efi to carb please help itsmyfiveoh 5.0 Mustangs 33 June 20th, 2007 02:26 PM
carb to efi 347tt 5.0 Mustangs 5 February 11th, 2007 08:08 PM
carb ? terribleonexx88 5.0 Mustangs 11 December 4th, 2006 01:21 AM
V6 EFI vs Carb quikstang2 V6 Mustangs 3 August 17th, 2006 06:19 PM



All times are GMT -4. The time now is 02:27 AM.
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company.
Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.

powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd.