Another TPI to Carb swap post.
#1
Another TPI to Carb swap post.
Hello all,
I cannot get my 383 fuel injected car to run to save my life. It keeps getting numerous amount of tuning problems and wiring issues so I am dumping it. Now, my mind is set to convert it to carb. I have read to keep it TPI and so on but it has been 5 years since this car and run steady and I want it running again so please no trying to persuade me on doing otherwise. Below is what I have done to my car right now. I am looking for what intake manifold will work for my current build along with the carb and so on. I can not do this work myself as I am busy with school and work and a shop (or pro) will need to do this for me but I need the part ahead of time.
Please help a fellow member drive his thirdgen again, hate to see it sitting.
I cannot get my 383 fuel injected car to run to save my life. It keeps getting numerous amount of tuning problems and wiring issues so I am dumping it. Now, my mind is set to convert it to carb. I have read to keep it TPI and so on but it has been 5 years since this car and run steady and I want it running again so please no trying to persuade me on doing otherwise. Below is what I have done to my car right now. I am looking for what intake manifold will work for my current build along with the carb and so on. I can not do this work myself as I am busy with school and work and a shop (or pro) will need to do this for me but I need the part ahead of time.
Please help a fellow member drive his thirdgen again, hate to see it sitting.
#2
Supreme Member
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Another TPI to Carb swap post.
Edelbrock RPM Air Gap (1500-6500 rpms) and a 650 or 750 carb is probably all you need.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
#3
Re: Another TPI to Carb swap post.
Edelbrock RPM Air Gap (1500-6500 rpms) and a 650 or 750 carb is probably all you need.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
#4
Junior Member
Join Date: Jul 2015
Location: Washington,il
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Camaro RS
Engine: 350 sbc
Transmission: T5
Re: Another TPI to Carb swap post.
Another vote for the Edelbrock air gap or performer Rpm.you may lose a little on top end with the Performer rpm but it will fit under the hood and the air gap is good if you have the clearance such as a cowl hood.a Holley or Edelbrock carburetor in the 650-750 range is a good choice.just be sure to use a bypass style regulator to bring the fuel pressure down,you can't use one of those cheap regulators or it will burn your in tank fuel pump up and a good HEI one wire distribuor and your in business
#5
Member
Join Date: Mar 2011
Location: Chicago, Il
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Iroc Z28
Engine: 305 TPI
Transmission: 700R4
Re: Another TPI to Carb swap post.
Just went through the swap myself for the same reason..went to start the car one day....crank and no start..said screw it, bought the parts put them all on cranked it about 4 times and started right up...still tuning it but best decision I made regardless of all the purist haters here it is so so much easier.
Trending Topics
#8
Member
iTrader: (3)
Re: Another TPI to Carb swap post.
I just did my carb swap cause of tuning problems I was not able to get a regulator to reg down the stock fuel pump so I went with a Holley blue pump I trimed what I didn't need off the tpi harness to keep all the gages and Tc lock up.I had a Holley 650 but swaped it out for a quadrajet. gained more hp and mpg
#10
Supreme Member
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Another TPI to Carb swap post.
A regulator with a 3rd port for a return line would have worked. The cheap regulators can not reduce fuel pressure enough sometimes and if they can, they will burn up the fuel pump.
#11
Senior Member
#12
Supreme Member
Join Date: Jun 2011
Location: knoxville tn
Posts: 2,036
Likes: 0
Received 5 Likes
on
5 Posts
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: Another TPI to Carb swap post.
maybe , but man , lately i have seen so many half done cars , i get calls almost every week about this , something like , "i dont like/understand TPI so i chucked it , can you make my car run for me ?? " and it shows up on a flat bed with the most horrid mis matched mess ever . yeah i CAN fix it , (put the TPI back on and throw that carb FAR away.) and then my price to do so comes into play , 3 of 10 go to pull a part right away. AND lately , my "bed side manner " is a topic as well.
#13
TGO Supporter/Moderator
iTrader: (12)
Join Date: Jul 1999
Location: SALEM, NH
Posts: 11,724
Likes: 0
Received 89 Likes
on
75 Posts
Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Another TPI to Carb swap post.
Just went through the swap myself for the same reason..went to start the car one day....crank and no start..said screw it, bought the parts put them all on cranked it about 4 times and started right up...still tuning it but best decision I made regardless of all the purist haters here it is so so much easier.
The reason the thirdgen guys get a bad rap is because the end result is usually a parts car. (or should be).
-- Joe
#14
Senior Member
Re: Another TPI to Carb swap post.
Im going to stay out of this one, but I hope you get HAMMERED! Hammered I tell ya!...hehe I love the simplicity of the carbs myself. Heck even our early cars CAME with carbs. They CAN be made to run just as good and sometimes better
#16
Senior Member
#17
Supreme Member
Re: Another TPI to Carb swap post.
i have NEVER regretted dumping the TPI junk off my iroc and the stupid in-tank fuel pump.
#18
TGO Supporter/Moderator
iTrader: (12)
Join Date: Jul 1999
Location: SALEM, NH
Posts: 11,724
Likes: 0
Received 89 Likes
on
75 Posts
Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Re: Another TPI to Carb swap post.
Nothing wrong with running a carb, especially if it's a dedicated race car or a period correct restoration.
It's when someone is like "I can't figure out this fuel injection stuff, me gonna swap a carb". I just just can't help but think that person shouldn't be anywhere near a toolbox.
The OP's post is one of the better ones, cuz it's not only "I can't figure out EFI, so I'm gonna swap me a carb". It's "I don't know anything, so tell me what to buy so I can pay some guy to frankenstein my car".
Like I said though, if it wasn't for these foolish decisions we wouldn't have soo many parts cars to pick from when people finally give up and scrap their car.
-- Joe
It's when someone is like "I can't figure out this fuel injection stuff, me gonna swap a carb". I just just can't help but think that person shouldn't be anywhere near a toolbox.
The OP's post is one of the better ones, cuz it's not only "I can't figure out EFI, so I'm gonna swap me a carb". It's "I don't know anything, so tell me what to buy so I can pay some guy to frankenstein my car".
Like I said though, if it wasn't for these foolish decisions we wouldn't have soo many parts cars to pick from when people finally give up and scrap their car.
-- Joe
#19
Supreme Member
iTrader: (1)
Re: Another TPI to Carb swap post.
Hello all,
I cannot get my 383 fuel injected car to run to save my life. It keeps getting numerous amount of tuning problems and wiring issues so I am dumping it. Now, my mind is set to convert it to carb. I have read to keep it TPI and so on but it has been 5 years since this car and run steady and I want it running again so please no trying to persuade me on doing otherwise. Below is what I have done to my car right now. I am looking for what intake manifold will work for my current build along with the carb and so on. I can not do this work myself as I am busy with school and work and a shop (or pro) will need to do this for me but I need the part ahead of time.
Please help a fellow member drive his thirdgen again, hate to see it sitting.
I cannot get my 383 fuel injected car to run to save my life. It keeps getting numerous amount of tuning problems and wiring issues so I am dumping it. Now, my mind is set to convert it to carb. I have read to keep it TPI and so on but it has been 5 years since this car and run steady and I want it running again so please no trying to persuade me on doing otherwise. Below is what I have done to my car right now. I am looking for what intake manifold will work for my current build along with the carb and so on. I can not do this work myself as I am busy with school and work and a shop (or pro) will need to do this for me but I need the part ahead of time.
Please help a fellow member drive his thirdgen again, hate to see it sitting.
#20
Re: Another TPI to Carb swap post.
Edelbrock RPM Air Gap (1500-6500 rpms) and a 650 or 750 carb is probably all you need.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
The air gap manifold won't clear a factory hood though. That cam would probably like to breath a hair past the RPM range of a normal Edelbrock RPM manifold (idle-5500) which would clear a factory hood.
And no problems from efi to carb, a good tuner will have it running as fast or faster than an efi motor.
Do you by chance have a part number for this Edelbrock RPM manifold (idle-5500)
#21
Supreme Member
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Another TPI to Carb swap post.
http://m.summitracing.com/search/product-line/edelbrock-performer-rpm-intake-manifolds/make/chevrolet/engine-size/5-7l-350/engine-family/chevy-small-block-gen-i
#22
Re: Another TPI to Carb swap post.
It depends on which heads and carb you have...
http://m.summitracing.com/search/pro...ll-block-gen-i
http://m.summitracing.com/search/pro...ll-block-gen-i
#24
Re: Another TPI to Carb swap post.
#25
Supreme Member
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Another TPI to Carb swap post.
If I were you (knowing you have an HSR and not stock TPI intake), I'd probably keep it fuel injected but that's your call.
#26
Re: Another TPI to Carb swap post.
#27
Supreme Member
Join Date: Mar 2009
Location: Sussex County, NJ
Posts: 1,402
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Another TPI to Carb swap post.
One of these two:
http://m.summitracing.com/search/product-line/edelbrock-performer-rpm-intake-manifolds/make/chevrolet/engine-size/5-7l-350/engine-family/chevy-small-block-gen-i/intake-finish/natural
It depends if you want to run a spread bore or square bore carb. Most aftermarket carbs are square bore (can be ordered as spread though) while carbs like the Quadra jet are spread bore.
The square bore is a more common flange. Any Holley, Demon, Quick Fuel or Proform is generally a square bore. When ordering a carb, I'd stick to a quick fuel or Proform.
http://m.summitracing.com/search/product-line/edelbrock-performer-rpm-intake-manifolds/make/chevrolet/engine-size/5-7l-350/engine-family/chevy-small-block-gen-i/intake-finish/natural
It depends if you want to run a spread bore or square bore carb. Most aftermarket carbs are square bore (can be ordered as spread though) while carbs like the Quadra jet are spread bore.
The square bore is a more common flange. Any Holley, Demon, Quick Fuel or Proform is generally a square bore. When ordering a carb, I'd stick to a quick fuel or Proform.
Thread
Thread Starter
Forum
Replies
Last Post