Would there be interest in a dodge TBI setup made for our cars?

Would there be interest in a dodge TBI setup made for our cars?

  • yes, I would love to try TBI. It sounds affordable

    Votes: 66 39.3%

  • only if it includes everything

    Votes: 39 23.2%

  • I would take a partical kit/wiring harness, since I like tinkering and figuring things out

    Votes: 9 5.4%

  • No I like carburated cars

    Votes: 54 32.1%
  • Total voters
    168
  • Poll closed .
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66plyValiant

66plyValiant

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last year I changed to throttle body fuel injection On a 1987 chrysler fifth avenue from a late 80's dodge truck, I used the complete setup including the intake, throttle body, factory intank pump and modified the wiring to fit an M body without cutting so much as one wire in the factory harnesss for the car

read more here : http://www.dippy.org/forum2/index.php?topic=6579.msg71380#msg71380

my question is would anyone have interest in a wiring harness? partical kit? full kit? not sure what I would have to price it at yet the full kit would include custom harness, new fuel pump, a good working used computer and possibly (not sure) a modified sending unit and would be very simple to wire up with directions and tech support if needed. mine only requires power all the time, power with the key on, ground, 2 wires to the fuel pump and a check engine light

let me know if you are interested and what you think
 
Sounds really cool, I'm done with having to fiddle with the carb twice a year minimum just to keep up with changing temps, and where I live it could be 80° one day and 40° the next.
And would love to get rid of the warm up time and hot start flooding...I'm just guessing, but this should work on a /6 with the right adapter and some dizzy mods to include a new trigger, right? How do you think it would work with boost ? ;)
 
Hey cudaspaz I looked at it,but it's over $2000. Same as every other aftermarket fuel inj unit,big $$.
 
I think anything that can be done to make EFI more affordable would be a plus. A buddy used that Howell set up on his Jeep, and while it was far from perfect it was light years ahead of a carb., no fiddling when temps change, going inot the mountains etc.
 
66plyValiant said:
last year I changed to throttle body fuel injection On a 1987 chrysler fifth avenue from a late 80's dodge truck, I used the complete setup including the intake, throttle body, factory intank pump and modified the wiring to fit an M body without cutting so much as one wire in the factory harnesss for the car

read more here : http://www.dippy.org/forum2/index.php?topic=6579.msg71380#msg71380

my question is would anyone have interest in a wiring harness? partical kit? full kit? not sure what I would have to price it at yet the full kit would include custom harness, new fuel pump, a good working used computer and possibly (not sure) a modified sending unit and would be very simple to wire up with directions and tech support if needed. mine only requires power all the time, power with the key on, ground, 2 wires to the fuel pump and a check engine light

let me know if you are interested and what you think
Click to expand...

I think it's a good idea. Have you been over on Binder Planet?
 
player1up said:
Sounds really cool, I'm done with having to fiddle with the carb twice a year minimum just to keep up with changing temps, and where I live it could be 80° one day and 40° the next.
And would love to get rid of the warm up time and hot start flooding...I'm just guessing, but this should work on a /6 with the right adapter and some dizzy mods to include a new trigger, right? How do you think it would work with boost ? ;)
Click to expand...

I have been thinking of the /6 crowd too :hello2: since I have a couple of 225 super sixes. I think with boost you could upgrade to 318 injectors and boost up to the horsepower of a 318 before your air/fuel ratio started to fall off, for the racing /6 you could install 360 injectors and go abit further

as for a daily driver not much beats the realiablity of a EFI setup and TBI is the gateway to EFI if you learn how it works first it leads to future upgrades IMO
 
inkjunkie said:
I think anything that can be done to make EFI more affordable would be a plus. A buddy used that Howell set up on his Jeep, and while it was far from perfect it was light years ahead of a carb., no fiddling when temps change, going inot the mountains etc.
Click to expand...

what I was mostly looking for when I decided TBI was a good starting in any weather car with good fuel economy and looks stock unless you look hard, with TBI you can use a stock 4 bbl air cleaner and hide all the wires and make it look nice and almost factory
 
I'm absolutely onside with your goal and the general concept of what you did; carburetors suck, but having lived with that TBI system on an '89 D100 318, I would not select it for retrofitment. Its hardware and firmware/software are poorly designed, halfassed and clunky. If I were going to the effort to retrofit TBI, I would use GM hardware -- adaptor plates are readily available and there's an enormous range of injectors to get whatever flow rate you need -- and a reprogrammed GM computer (you can do that with the GM computers, but not with the Mopar ones). See discussion here, here, here, and here. Adding a vehicle speed sensor is easy; a NAPA Echlin VSS-232 (or equivalent) can simply be placed in line with the speedo cable:

ECH_VSS232.jpg
 
slantsixdan said:
I'm absolutely onside with your goal and the general concept of what you did; carburetors suck, but having lived with that TBI system on an '89 D100 318, I would not select it for retrofitment. Its hardware and firmware/software are poorly designed, halfassed and clunky. If I were going to the effort to retrofit TBI, I would use GM hardware -- adaptor plates are readily available and there's an enormous range of injectors to get whatever flow rate you need -- and a reprogrammed GM computer (you can do that with the GM computers, but not with the Mopar ones). See discussion here, here, here, and here. Adding a vehicle speed sensor is easy; a NAPA Echlin VSS-232 (or equivalent) can simply be placed in line with the speedo cable:

ECH_VSS232.jpg
Click to expand...


Thank you very much for the support Dan I appricate it coming from someone with as much knowledge as you, as far as the Chev computer and TBI its a possibility, I'm not as familiar with wiring one up as a dodge setup.

I hear there are great possibilities with chev TBI and easy to make work on any engine, and well I would love to see more /6's that are EFI, I was on /6 dot org looking around and it seems the cheapest route is megasquirt and thats still almost $500 and you still have to gather parts and build it yourself

most people don't mind tinkering but when it comes to wiring they tend to go for a full kit so they don't have to do wiring, and thats where I would like to go with a kit I would offer wether it be a full kit or partical there wouldn't have to be any wiring done,

no wiring to do just plug in and hook to the fuel source and go have some fun!
 
slantsixdan said:
I'm absolutely onside with your goal and the general concept of what you did; carburetors suck, but having lived with that TBI system on an '89 D100 318, I would not select it for retrofitment. Its hardware and firmware/software are poorly designed, halfassed and clunky. If I were going to the effort to retrofit TBI, I would use GM hardware -- adaptor plates are readily available and there's an enormous range of injectors to get whatever flow rate you need -- and a reprogrammed GM computer (you can do that with the GM computers, but not with the Mopar ones). See discussion here, here, here, and here. Adding a vehicle speed sensor is easy; a NAPA Echlin VSS-232 (or equivalent) can simply be placed in line with the speedo cable:



ECH_VSS232.jpg
Click to expand...

X3! Gotta agreee with Dan ,it makes sence to source part's from the most readily available donor's and that's G.M. I've already got some of those tbi unit's and just need a wiring harness and a reprogrammed G.M computor.

I think this is all the websight link I posted really does. It's not THAT cheap from them thogh. How easy is it to reflash a G.M computer? Can anyone here do it?
 
Wanting to put EFI in a Demon build for my wife.. It would be a lot easier than dealing with the idiosyncracies of carbs. Interested

Grant
 
I too have lived with a Dodge TBI- for many years on my 90 4 X 4 3/4 ton. I've replaced the actual injectors several times. Ones for a 318 make a 360 run like crap and don't be surprised if they give them to you represented as the right ones. As stated above the computers themselves are very primitive, suspect at best, and replacing one is a bigger crapshoot then replacing the injectors. I don't need to mention how difficult it is just finding replacement parts- computers, parts of computers, and sensors for one that has gone gunnybag.
It can't flow enough air to allow a working 360 to do it's job without dogging (it's not as bad as being passed by a bicycle while going up a hill in a dump truck I once drove, but still not much fun pulling a loaded car trailer up just about any grade), and the fuel economy has never been anything to write home about. On a positive note, the damn thing aways seems to start, even if it runs like crap.
Bottom line is it's basically a glorified electronic carburetor and still retains most of the short comings of one. While the actual throttle bodies are all very similar to one another, OEM throttle body computers are primitive and not well suited to running on something other than what they came on and newer aftermarket systems are very nearly or the same expense as a port system.
With port injection having been the standard with virtually every manufacturer for around 20 years now, if you don't want the expense of buying all new components, adapting to a junkyarded port injection isn't much different from throttle body aside from the extra time and trouble to deal with injector bungs, fuel rails, and the somewhat more complicated wiring harnesses needed for a port injection system. Chances are better for finding a suitable computer to run it on your particular engine too. If I was going to go to the trouble of adapting to EFI, I'd be far more inclined to go with port injection verses throttle body. More work perhaps, but not terribly different in cost if you are junkyard savy, and far more satifying in the end result.
 
Oh yeah, and as for fuel pumps:

http://www.gnttype.org/techarea/fuelsystem/walbroflow.html

http://www.fuel-pumps.net/gsl393.html (pump)

http://www.fuel-pumps.net/400-920.html (mounting kit)

http://www.fuel-pumps.net/128-3024.html (8mm - 5/16" barb fitting, inlet
or outlet)

http://www.fuel-pumps.net/128-3014.html (9mm barb fitting, inlet or
outlet)

http://www.fuel-pumps.net/12products.html (this supplier's full listing)

http://www.cfm-tech.com/gm_tbi_fuel_pressure.htm (fuel pressure setup/mod info)

http://howellefi.com/gm-tbi-products/parts-and-accessories/adapter-plates.html (adaptor plates -- I'm sure there are other sources, too)

Link for GM ECU chip customiser is in one of the threads I linked above.
 
twofosho said:
I too have lived with a Dodge TBI- for many years on my 90 4 X 4 3/4 ton. (…) the damn thing aways seems to start, even if it runs like crap.
Click to expand...

That's about the extent of it. I spent (wasted?) a lot of time tweaking and modifying the Dodge truck TBI system and really didn't get much of anywhere. I was able to knock the worst of the rough edges off its driveability, but that's it. It really is a cheap and nasty, poorly-done system. I had another round of mods in mind that might have improved things a little more, but it would have been a fairly complicated (time-consuming, expensive) effort and I wound up selling the truck. I'm sure it still starts reliably!

TBI isn't as nice as port fuel injection, but a well-done TBI system is way better than a carburetor and it's a lot less work and expense to retrofit TBI than to retrofit port fuel injection, no matter whether you're using all new parts or all junkyard parts.
 
I'm intersted.

I read your thread on dippy, but you didn't post the fuel economy numbers.

I'm a big fan of F/I, but some of the conversion work kind of scares me (and I'm an IT analyst).
Also, "Just a little more" work, means vastly different things to different people.

I already have about 80% of an MPI system (2000 durango 5,9 pulled warranty motor), and plan to use that in the future, but I'm definately interested in the TBI conversion as it sounds a little less intimidating.
 
needsaresto said:
Hey cudaspaz I looked at it,but it's over $2000. Same as every other aftermarket fuel inj unit,big $$.
Click to expand...

Yeah, it is pricey, but. Easy.
I like easy.

Yellow67dartgt has one but has yet to install it.
Looking forward to his write up.

I personally would love to have a port injection set up.
 
I direct this question to /6dan with his mind-numbing knowledge level, but anyone can answer.

on a 1bbl /6, is it as basic as it would be for the v8? (adapter plate and 1bbl sized TBI unit being probably the only differences)
 
hemitheus said:
on a 1bbl /6, is it as basic as it would be for the v8? (adapter plate and 1bbl sized TBI unit being probably the only differences)
Click to expand...

I haven't tried it, but I've thought about it (even in terms of two 1bbl TBI units on an Offenhauser twin-carb slant-6 intake) so I think so, yes.
 
The slant has horrible fuel dist. Man if tbi were used I'd build a custom intake manifold,have two groups of 3 runner's and two tbi unit's.
 
What GM cars would you junkyard shop for a 1bbl setup? (Early 90's cavalier?) I know jack diddly about GM's other than the fact that their wiring was superior to out Mopars, and their parts are dirt cheap in comparison.
 
needsaresto said:
The slant has horrible fuel dist. Man if tbi were used I'd build a custom intake manifold,have two groups of 3 runner's and two tbi unit's.
Click to expand...


Sounds like over-carburetion... er over TBIeration (with stock internals)
 
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