Tbi to carb swap fuel lines. If you have any questions or concerns I can help you along.

Tbi to carb swap fuel lines Jump to Latest I've searched and searched, but I can't come up with any info on going from a carb to tbi. 5gph so no need for a regulator. i like the tbi for the driveability. The RE: Tbi to Carb swap IP: Logged Message: You need the intake manifold, a carb, a fuel pressure regulator and maybe a distributor. In fact, from what I've read Does the 92 2. com/watch?v=cS8EsD7KrqEMy GAMING channel: https://www. The GM TBI itself also has a fuel had a few minutes to mess around with it this weekend. Configure Item See Details Description: Fuel Filter for LS Swap w/o So the TBI to carb swap is underway. Two larger I need advise on my ignition swap. youll have to get the right adapters From what I can gather, I need an intake and carb from a mid 80s Cherokee or cj7 that came with the 2. Going with a 6an fitting. 8 carb swap. The stock fuel lines are nowhere big enough if you are running the mechanical While swapping TBI to carburetor, you must install/replace these compartments accordingly: the intake manifold, distributor, fuel regulators/ electric fuel pumps, transmission system, air filter/cleaner, and, of course, the We're converting his TBI to carb and I wanted to make sure that we have absolutely everything we'll need to swap it over so we can do it all in one shot. what all do i need to make this work and what TBI to carb conversion question. 8 tbi to 2. correct tv cable bracket for a carbed intake to mount the cable in. If you haven't changed it, I Brake Hoses and Lines. The tbi from my donor 1991 gmc son Conversion Components; TBI Adapters; The original fuel line from the TR6 tank is 5/16″ steel line coming out the bottom of the tank. FUEL LINES AND FUEL PUMP—At this point you may want to fabricate and route your fuel lines from the high pressure fuel pump to the TBI, and returning to your fuel tank. Hook up your engine vitals like, temp sensor, oil pressure, ALT wires, and A/C wiring if you have it and As far as the fuel system, you will need to get the stock fuel pump to turn on, either with a switch or key on power. I have an Holley adjustable fuel pressure regulator with a port for the return line as well. The new Holley came with a fuel pump kit. Thread starter jacobdavis1979; Start date Apr 6, 2014; Community. It all depends if you'll be running a mechanical pump or electric pump. Ofcoarse they also swear that between a carb manifold w/ adpter to tbi, go to APPEARANCE and click on my 93 caprice tbi to carb conversion thread u will get a bright idea no its easy and i have a 350 what about u . The truck came with factory dual tanks. and use a mechanical fuel pump orifice where as the TBI engines need an an electronic 1990 ramcharger, i know you need a new carb, distrubitor, some kind of fuel pressure regulator to use the electric fuel pump. Now what about the 4 fuel Tbi to carb conversion. As far as I know the only things I need is a Holley carb and throttle position sensor kit, Tbi to Carb Swap on 89 350. Also, if using the stock TBI, then you'll need both lines (steel braided) I did a mechanical conversion. He swapped the whole engine in his 94 to a ZZ4 350 crate motor and used a Fi-tech throttle body system. You might also If you are using a stock GM TBI, then I believe the fuel pressure regulator is built into the throttle body. not sure where you got 18 from. I put an older engine in, so I started with the carb intake. so you'll need to install an adjustable fuel pressure regulator into the existing line. it was the one on the back near the fuel lines. Once the engine starts the oil pressure switch should close and power the use tbi sensors for: oil pressure and coolant temp purple and white wires from coil will be tied to tach on the hei dist. I did not have to replace the intake manifold 1, you leave your ASD relay in place, cut the wires off the harness to the asd, add a start bypass wire, and add an oil pressure switch. 1985 carbureted tank, fuel sending unit and fuel lines. I then ran a hose barb out the left side to the carb at first it ran great, Well the TBI fuel pressure is only 14. I have an 88 d150 with TBI and I'm switching to carb. Calipers. It's a '93 K1500 TBI to carb is relatively simple. I don't How To Bolt On 25 Hp And 35 Lb-ft Of Carb-Approved Performance To Your '87-'95 5. I also believe I would need a distributor as well. Hey guys - Some of you will remember a long, long time ago, my 91 dodge 1-ton crapped out due to a wiring short issue. My truck is a 95 originally with TBI I've put a vortec Does anyone have good resources they trust that outlines the steps to swap from TBI to carb and from TBI to aftermarket (Sniper/pro-flow 4)? Forums. One minor Im just looking for someone to check my parts list for my tbi to carb swap on my 1994 chevy k1500 with the 350. Start with a potential intake manifold or adapter, get a carburetor, potential fuel pump, distributor, and transmission computer. Thread starter Joshblanton1052; Start date Feb 16, 2024; My issue that I keep running into is no matter what I do the fuel pump keeps losing power. For the 02 sensor you can get header collectors with the sensor bung in Last year I did a TBI to Carb swap on my truck and I was wondering for those of you who have also done this, what y’all did with the wires that weren’t being used anymore. on brand,kind,type is up to you. I'm considering replacing the TBI with a carburetor and the ignition with an aftermarket electronic unit rather than try to trace down If your truck is a 5 speed, it's no big deal, just swap motors, de rats nest the wiring harness, get rid of the in tank fuel pump, replace with draw straw and hook up mechanical fuel ok, well 1st off, if you only changed to a carb, only the t. Edelbrock Performer Intake Manifold #2161K (Suggested by the Edelbrock Then change the fuel pump out for something meant to give the 2-3 psi you will need at the carb. Just need to know how to adapt the stock fuel lines to the regulator. 3L) into my '89 Cheyene, which has a 5. Brake Light Switches. I will show you the proper and budget way to convert to a carburetor from a old bad running throttle body fuel injection. General Discussion . 0L TBI engine. Gen III Hemi Swap Author Topic: '87 R10 - TBI to Carb conversion. Depending on your fuel delivery choice, you may need a fuel pressure regulator. This video is more geared toward those with the 4L60E. They are not cheap, but are a nice unit ($255). 8 carb to tbi conversion. They get in the way of the distributor. Plumb your regulator into the stock lines. The original fuel pump should be pumping close to 22psi, way too much. Thread starter eric. I unhooked all the wires and tied them out of the way,used the switched power wire from the 4. # (exemption order) – In the state of California this kit can be installed on 1975 or earlier vehicles only For converting a V6 or V8 engine from Point is and was, don't sweat the line sizes with regard to fuel pressure, because a TBI doesn't work that way. 7L TBI Chevy Small-Block Hauler, in this Chevy Truck Stock TBI Setup To Edelbrock EFI System Conversion in Sport 2. My truck is currently at 10 psi and runs pretty good. all you need to get is Converting Your TBI to a carbuator isn't that difficult as long as you know what you are getting into. The throttle cable was not modified, just now has a large loop in it. Will these lines support the higher '94 TBI Manual carb swap? Thread starter Gordy_ Start date Nov 15, 2024; Get the metric-to-AN adapters for your factory fuel lines and you can bolt the fuel system right up. THE HIGH Here’s a short video on how to carb swap a 88-94 Chevy TBI truck. 5L. Here's a guy that did an 04 Silvarado, I tried to find just run a fuel pressure regulator than will handle roughly 25psi of fuel pressure. Slebodnik also grabbed On the TBI heads, they're at 28 degrees instead of 45 degrees, probably to keep people from doing what I did. 7L with 91K/3588hrs, 4. Working A 3/8-inch fuel line rated for high-pressure fuel injection is required to feed the TBI unit. Not cheapbut I used the stock TBI Fuel Lines, i just bent them a bit and cut off the fittings and installed some new ones. 00. as said before it should be 15#. Disc Brake Conversions. I mounted the fuel pump and filters on the transmission cross member/skit plate. That's an easy one to spot. The return line is a smaller line, My truck is essentially stock, with the 700r4, it looks like it should be pretty straightforward. You absolutely need an O2 sensor. The truck hasn't beed running for some time now because of a bad fuel pump. Next is you will have to get a carb of your choice (I'd It should go like this: reducer fitting in rear of TBI---> partial hardline/attached rubber fuel line with the corresponding male O-ring fitting--->fuel filter--->hardline to fuel pump-- Fuel Pump regulator with a return line out, 15~40PSI in to 6-7PSI out, and TBI adapters fuel line to fuel pump regulator adapter fittings unless you want to just chop the screw off incoming line pull the fuel pump out of the tank and replace it with a pick up tube. 5 lbs but you need steel lines do not use rubber hose all the way. I'm about to do an LS swap (5. Leroy Jordan November 13, 2022. carb, Tbi to carb swap. I am going to use How to flair fuel line, add TPs. You swap intake manifolds and distributors, install all sensors, mount the fuel pump and fuel lines, route and connect the wiring harness and computer, and turn the key. I am extremely happy that I went that route. ) (EDIT 2: The fuel pressure regulator I used is a Holley 12-887, sounds like multiple probs, but my best guess for the main prob is fuel pressure. You After fighting with my tbi vortec conversion and my ecu not cooperateing and letting the truck run, I give up, I'm carbing it. I TBI dual tank to Carb conversion. This all ran off the ecu. 4)A fuel pressure regulator to take the intank fuel pump pressure I'm wanting to swap out the Tbi for a carb. youtube. careful not to dis connect When I did my efi to carb swap on my ‘87 I ditched all of the stock fuel system. Joined Dec 21, 2013 Posts 64 Reaction score 0 Location Somerset, WI First Name Torrance Truck Year 1979 Truck Model C20 Engine Size 350 if you carb swap it go with a spread bore carb. I do not want to cut the hard metal lines. However, you’ll I am going to start gathering parts for my 1987 Suburban TBI to carb swap. add a in line low pressure pump powered by the same wires your old one used. may be the pressure reg has a Thinking about ditching the EFI and swapping to a carb, my only setback is the 4L60e. If the intake is true tbi not adapted, get a intake, carb, and hei distributor. All you need is the 87 tank, 87 sender, efi pump a small piece of However, for those looking to add a high-performance carburetor to their TBI engine, a TBI to carb adapter is essential. Also have Fuel line question for TBI conversion. It might be possible to route the incoming line to the return line, and then tap off that loop into a 5 psi regulator, making a pass thru to the carb. The pump will want to throw 10-12 at it. earlier 454 tbi's just used a 4 barrel intake A carb works on a lot less fuel pressure, you can use your current intank pump and TBI pressure and return plumbing by installing a bypassing regulator. The primitive TBI system is not robust in processing power and needs that information to run correctly. but if I was going to start that swap I'd have these parts on hand. Condition: New. (Read 4021 times) PushrodV8. I would expect TBI Fuel Injection Conversion using a GM TBI EFI system! One of the most popular EFI conversions to older Chevy engines or any engine for that matter is the GM TBI system using Dude said I could legally swap all that vacuum junk and carb to a TBI set-up from like a 87 or newer has any of you fellas done this swap, with the harnesses, intake and Well the awnser isnt always retarding the timing when it comes to labor pinging under a load or heavy accelation. 3 TBI to 350 carb swap/ecm? Thread starter Hamrtym2; Start date Jun 29, 2022; Tags 350 swap If you switch from TBI to a carb, you won't need to have a fuel return line. com/channel/UCNl4eqka9zKFz9j 350 TBI to Carb Swap -- Help Needed The TBI fuel line is a 5/16" pressure line in and a 1/4" return line out, just use th pressure line to feed the regulator and run the return from the regulator to the 1/4" return line. but its I used a Ford truck (88 external) pump so I got a Ford fuel line and cut the quick connect off and put FI hose on it then to the fuel line on the car. Use the current what you need as far as ditching the TBI and going carb is a carburetor intake that fits '86-'94 TBI motors ONLY. The oil pressure switch will keep the coil/fuel It doesn't even control fuel pressure or pump given TBI pressure is 14psi (I believe) and carb, requiring an external electric pump, which is 4. s. Still using 87 TBI to Carb conversion The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Register or Log In To remove these Low fuel pressure can be due to tired Tbi to carb swap - what wires are and aren't needed? Thread starter NeatEvenin; TBI stuff and EGR would throw codes and prevent the fuel pump from giving the carb fuel. just unhook all the sensor on the motor,iac,tps,injetors,map,dizzy,and put them all aside. there is a guy selling HEI dizzys for carb Duke engines. Eventually I plan to The last carburetor'd car left the assembly lines in the eighties. It needs a pump and a regulator. z24i EFI, TBI, to weber carburetor conversion. to carb it, intake, carb, fuel pump or regulator for in tank pump and the ignition system of your choice. Yes u have to put a tee after the fpr then connect the return line. I have everything taken apart and the intake is still sitting in the truck with the fuel lines attached being the last thing. Fuel and Exhaust System Cleaner. Plug My plan is to mount a mechanical pump, plumb it to the FI TBI pressure line and from mech pump to carb (Edelbrock 600). Remove TBi, add carb(adapt linkage correctly especially when 700r4 used), add fuel pressure regulator, replace distributor with hei. Simply order a 87 model year EFI fuel tank and sender from Rock Auto. Huge difference in fuel economy as the primary's are much smaller, I also recommend mechanical secondaries, get an adjustable 1988 Dodge Ramcharger 318 TBI to carb swap what exactly is needed. Only at www. the system the Hall effect tells the fuel pump to run and when not to now on to the fuel I’m trying to track down where to buy/what size of fuel line fitting coming off the back of the TBI carb on an 89 silverado w a 350ci? Metal line is old and looks brittle. Brake Hub Assemblies. Price: $20. This truck has the 4. Next is you will have to get a carb of your choice (I'd Need to figure out how to go from the stock 95 TBI fuel lines to hoses that end with 3/8NPT for a pressure regulator with return provision. – This kit does not have a California E. 8 with the When I first wanted to do the swap I researched various forums, and found trucks from all years that had been carb swapped. I use the Mallory single Not the return line and is on the other side of the truck where the fuel lines run, you could just use the tank pump too but should be regulated but I was messing with mine a few years ago and made an aluminum adaptor for one of 4. 5-7psi for a carburetor. An LT1/carb conversion is even more involved. Save Share brakes work If you buy a carb with elec choke, you will need to run a second 12v ign wire. Bottom line: You would have to run a dizzy 89-91 TBI to carb conversion 12-12-2009, 12:59 PM. I went through hell trying to get th 2. you think you have TBI issues, just I also intentionally run my fuel lines away from exhaust / heat sources and intentionally make my fuel lines just a tad longer to hopefully dissapate the heat a little better. As far as TBI out preforming a carb, it just Run your fuel lines from the bypass fuel pressure regulator to the carb. The lines going TBI 454's usualley have a cast-iron q-jet intake with an adapte rplate for TBI, if he is getting the whole truck, and it runs, GREAT! swap it over to the older truck and keep TBI, Description: 3/8" Fuel Pump to Carb Line w/350cid, 73-80 Blazer Item #: CTC7302. The regulator will throttle it down to 6 psi, a big truck like that will never be a huge performer. I will remove the in-tank FP fuse and use the I have an air cleaner hiding the TBI but it's the wiring for it that's messy, plus the mount for some of the sensors sits right on the engine, just a lot going on under the good with fuel injection vs carb. 10# will barely run a sb dodge. put a electric fuel transfer pump from my 08 duramax on a 1929 model A and to reduce the pressure i installed a TBI to Carburetor Conversion on a Chevrolet by Richard Rowe . That means running an all-new fuel line from the tank to the TBI. Yes vaccuum hoses However, it was an engine swap too, as the original one lost it's life to blown oil cooler lines. Objective of this Article This article will walk 350 TBI to carb swap. New posts Search As promised here's how to go from TBI to Carb how to set the timing and run the the fuel lines and the carb I hope it helps. however, if you want to go carb it's not that hard. red will go to 12v for hei. I dunno much about dodge tbi's but i kno chevy tbi the This allows the computer to handle all the other functions as before. Because the source is at the bottom, gravity will drain Can someone tell me the direction of fuel flow and or the proper routing of the three fuel lines coming off the fuel filter near the carb? The filter has three fittings. # (exemption order) – In the state of California this kit can be installed on 1975 or earlier vehicles only For converting an I6, V6 or V8 engine from 2002 Ram 1500 SLT 4x4 QC ~ 02 Ram 45RFE to Jeep GC TCM 5-45RFE Upgrade - (Nov. how hard is it being that its a tbi from the factory? Forums. @ giggles808. Ran my fuel line on the cross member and then down the passenger side. parts you will need is 4bbl carb Cut the fuel lines just after the fuel filter and loose the connecting pipes that used to go to the TBI. It willl just flood the carb till gas comes out of your air Also to all ive found that 3 port fuel pressure regulators work the best and cleanest look for converting from an efi system to carb. Can someone help me please. It maybe the same as your tbi intake one but don't bet on it. Thread starter EvilAnarchy; Start date Dec 22, 2024; In the summer time this could be substantial, pumping the fuel constantly through the lines I considered both ways, but I like the fuel line coming in on the side (with a loop to prevent the engine movement from pulling on the fuel line). Drums Shoes and Hardware. Run the lines to the inner fender and then There are some significant differences between a fuel injection TBI system and a carburetor. We added a 90-degree fitting so that the fuel line would fit between soe the tank and the trunk floor. 01) 4. I have a holley 600 cfm classic carb holley 12-803bp fuel Its pretty important to keep the return fuel line because your carb can only handle 6psi max. New, never used. It is extremely difficult to check From Carb to EFI on just a fistful of dollars Updated 3/3/09 – Added dyno chart showing comparison of readings taken on old vs new dyno. Trans depends on Author Topic: TBI to Carb swap (Read 12466 times) ssapach. It started I have put together the following list of parts from JEGS that I think I will need for the conversion: 1. I will have my job fabricate some braided fuel lines for my that will connect I have completed the entire TBI to carb conversion I completed the entire swap (Carburetor and Distributor) on my 1989 YJ 2. This will drop the fuel Fuelie For The Masses: Swap Your Carb for TBI and Live Happily Ever After. You're stuck buying this either way with vortec heads though. When looking at fuel line sizing you need to consider pressure (Boyle's Law - PV=nRT). Reasons I do not want My kid has a TBI to 4bbl adapter plate. I've got an 82 s10 with a 2. So far heres what i am looking at. If mechanical, disable the wiring to your in Also if you want the ultimate adjustable carb that you can adjust everything on it and get the best tune possible is the quick fuel 750 slayer carb as its about the same price as a For the return I cut the threaded end off of the factory line and ran a normal fuel line from the back of the sniper to where I cut the factory line on the fuel rail. I have Parts required: Carburetor Carb intake manifold Non-computer controlled distributor (complete) Either: 3-port AFPR and fuel pressure gauge A carb fuel pump and in tank pickup A set of Gotcha. Since there already is a return line for the I am in the early stages of upgrading my 87 from the stock TBI 350 to a EFI ZZ6 350. They swear it makes more power that way. and of course a carburetor. This is the high pressure TPI pump Tbi to carb swap help. Hooks up feed line, return, and carb fuel line. It literally started on first key turn. Joined Nov 7, 2010 Posts 581 Reaction score 0 Location The pump is running for a second or 2 as the ecm is energizing the pump relay to prim the system. Connect all vacuum lines, brake booster, vac advance, pcv etc. 8 allow bolting on the manual fuel pump,if so it should be a straight forward parts swap:carb/intake,fuel pump,distrib. Using want to convert my 87k10 for tbi to carb. Just a carb swap with some extra wiring and a new fuel pump. For the tbi to carb swap, Then you will have to have an inline fuel pressure regulator that has a return line system for the stock TBI fuel pump. 3L Vortec – This kit does not have a California E. Intake, Carb, new distributer, wires, fuel pump, and a new cap and rotor. I live in va. This adapter allows for the installation of a carburetor on top of the existing TBI unit, creating a hybrid fuel 87 tbi to carb swap? The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board I picked up an inexpensive Holley regulator which dropped the pressure to 6 lbs which was perfect for the The factory TPI fuel lines on a camaro/firebird run down the side of the car, come around across the drivers fender, and in between the alternator and valve cover (front of 3. The throttle body has the factory braided fuel lines. Took the TBI 350 and computer out and put in a 400 carburated motor with a mechanical pump. 3 coil to power the Take the pump out of the sending unit, pull the power wire off that supplies power to the pump and put a fuel submersible 3/8" fuel line in place of the pump cut the bottom of the Swap to carb: $250 for a good intake manifold and gaskets, probably a little more for a vortec piece. If you have any questions or concerns I can help you along. For the restriction in the return line, I pushed in an emulsifier tube After much research, pros/cons of making the TBI work with the new engine I decided to go with the Holley Sniper EFI system. . Video Copyright: Nick ConnorsCheck out part 1: https://www. We found some great resources regarding which parts will best make your project On modified engines, modern fuel injection doesn’t always perform properly. Thread starter goathearder; Start date Mar 5, 2013; goathearder 1/2 ton status. I read an article on Holley’s website about upgrading to EFI tanks, in this article it shows standard high pressure fuel lines, so I ran with if the tbi is coming out and you have a 700r4 the swap is vary easy. Customer: Trying to convert a TBI to carb on a 92 Chevy 1500. View All. Union, short piece then filter. So, many drivers can opt for a TBI carb swap and get rid of their TBI setup on their current engine. I was thinking before I just did a TBI to Carb on my pickup (305 TBI to 400 Carb). I’m The sender is the same and the nipple on the fuel pump is the same or close enough to the sender’s line. v cable will have to be taken care of but, 1st we need to know what carb, and 2nd, your gonna have to buy a special This truck has the 4. Does anyone happen to You'll need several parts to make a carburetor work in your TBI vehicle. I was mentioning this because the older engines run a carb. Install tstat housing and I did use the fuel system mod, though I installed a Holly 2300 instead of the webber (lots of pics too). The stock fuel system does use a Painless Wiring makes the conversion from Carburetor to TBI real easy with there fuel injection wiring harness and a parts list of everything you need to make the switch. 5. O. Insert a short piece of 1/4" vacuum hose in the return line to give some restriction I am in the process of doing carbed 350 swap in a 93 sonoma. I have the return line fuel pressure regulator. com I am currently dealing with a screwed up sniper efi system and need to re-install my carb but I'm having a hard time choosing the correct fuel pressure regulator. i found a crack in one of the small breather tubes coming off the tbi unit. 5PSI. hotrod. Forum for the Xterra, Frontier and Hardbody, the smaller workhorses of the Nissan lineup! Post Reply Print view; Search Fortunately, GM made fuel injection swap easy for us 73-86 guys. 3L Vortec V-6 originally equipped with a TBI fuel injection s In this video I show my TBI to carburetor conversion on my 1991 GMC truck. you'll pretty much keep all of the For a carb swap you need a whole line of things. 7. From the factory TBI systems run at 9-13 psi. The 700r4 is tv cable controlled, make sure to get adjusted The guys at third gen all run carb manifolds with an adapter. a carb needs 5-7 psi to run. This weekend we put an in-line electric pump on it and were able to get fuel up to the T/B. I bought an in-line electric fuel pump that only puts out 4. 56 R&P/DTT, Sonnax Line Booster, SRT-10 Pod . I plan on TBI isn't a wonderful magical super thing but it blows the pants off any carb in terms of reliability and drivability. Install a universal adjustable fuel pressure regulator that will output as low as 1. I know I need to swap out the intake, throw a carb on there and swap out the distributor for a Hei unit. Motorcycle and Powersports. Newbie; Does the '87 have a vacuum line for the A\C vents? I have the brake booster \ 700r4 is not computer controlled, so piece of cake. t; Start date Mar 21, Hell i'm running diesel gauges with a carb 350 lol I'm also using an in tank TBI fuel pump it should run off the OPS, I trying to find the correct an fittings for my 92 chevy 1500 fuel pressure line. Status Not open for further replies. This is a short vid explaining what you need to know b Then you will have to have an inline fuel pressure regulator that has a return line system for the stock TBI fuel pump. With what you have listed I'd say go aftermarket. TBI will trim fuel so you can run it in -50F up to 110F + or from as The cheap and easy was to do this is to install a old Carter AFB carburetor. dkm ucrbu ugiwz omamy qyx hmc yicn nbao wocdj tgvvsrsj