3x1 efi
- Thread starter primal1
- Start date
parkwood60
Well-known member
Not certain, but I have been told the Ford Tempo 2.3 throttle body injection will bolt right onto the intake on a 200 motor. This is because the 2.3 HSCC four was created by taking a 200 and getting rid of 2 cylinders. I have considered using 3 of them on a motor, but haven't really looked into it.
I believe the throttle bodies were only used on the Tempo up to 1987. They included a fuel pressure regulator, single injector, throttle position sensor (TPS), and idle air control unit (IAC) . These throttle bodies were also used on the Ford Taurus with the 2.5L HSC 4cyl engine during the same years as the Tempo. These throttle bodies have the same bolt pattern as the single barrel carb and will bolt right onto the log head.
After 1987, the HSC engines went with MPFI. So the throttle bodies after that only had the TPS, and bolt on before the intake runners.
After 1987, the HSC engines went with MPFI. So the throttle bodies after that only had the TPS, and bolt on before the intake runners.
Not very easy, but at 25 bucks a throw for one complete set-up, certainly doable. The offy is too tall and too small in porting to work well, so your better off making a low deck welded intake like on rwbrooks50's website
http://s529.photobucket.com/albums/dd33 ... 0Ranchero/
The TBi is just a 1946 Holley with the worlds best TBi injector. It's linkage is pure 1978-1983 Fox 200, and 1984 US and 1984-1987 Canadian 1949 and its feedback versions, the 6149/6153. A 1946 Holley is driven from the back of the carb pointing to the firewall on the rear drive Fox, but the 1949/6149/6153 and TBI are actuated from the drivers side on the West East engined Tempo. Oh, and the Taurus 2500 with 100 hp from 1986 to 1990. Plenty of messed up rental or repmobiles around to pick from in a car yard, if you know what to look for.
You need to study these pictures
Donar engine--->
Sitting clocked anticlocwise 90 degrees on one of our forum members efi Mustang
|
|
v
And a view of the TBI unit from my mates US market 85 Alaskan Ford Tempo 2300 he imported to New Zealand
There are four problems to cover off first
1.As far as TBI's go, they are monsters, two of them would be enough to wake up make a 5.7 84 Crossfire Corvette or 5.0 235 hp TBI Camaro. The problem is that the delivery pounds per hour is set for 90 to 100 hp each depending on color. Three would be almost 285 to 300 hp. Tripower kits are normally made for small upgrades in the 120 to 220 hp range, so three stock blue or green injectors are over kill unless you really work that 200 with a huge 278 or bigger cam, 10:1 compression, better ports, big exhast and a set of close ratios and a demon diff ratio to cope with an overall loss of low end torque. On the basis of sizing, three TBi's are the same as three HS6's or CD175's like used in the 282 hp the 1967 to 1972 Aston Martin DBS 4.0.
2.Biggest issue is that the Offy or Edlebrock intake is too small for the other carbs, always has been since they were first devised.This limits power potential for any given combination to about 180 on a 200, maybee 200 on a 250 with all the right mods. Cam timing needs to be altered to build pressure on these carb configuations because the 200 and 250 engines are just like a making a worked 400 hp 460 breath through a 500 cfm 2-bbl Holley. There isn't the room to hog the Tri Power intake out to 1.75" (or 45 mm) for each barrel. In the Offy for the later EO head, each intake is only 1.09" or 28mm for the outers and whaetever the inner is. The Weber 34 goes on them, but they are just 29 mm venturi carbs. You'll have to make an adaptor to merge and waist the 1.75" hole to 1.09" at the outers(45 mm hole down to 28 mm). The TBI and carb share that huge 1.75" throttle body, same as the US and Canadian carb version of the Tempo.
3. The inlet to each of the three throttle body injection units is oval shaped, and so it can't go in the stock postion, it has to be turned clockwise (as you look at the front of the car from the radiator) through 90 degrees to allow the three air inlets to point over the rocker cover. I've been told the air horn on the TBi is able to be clocked without moving the throttle body, but I've not seen that.
That makes the linkage simple as long as you have space to use the stock Offenhauser linkage off the spring side of the Tbi. There isn't the room to run the linkage between the rocker cover and TBI units. Normally you should never operate an accelerator from the other side of the carb shaft, but on the TBI, it should be okay.
4. The TBi operation. Basically, you can use the stock TBi and convert your Duraspark to Thin Film Ignition, and run the stock EEC4 Tempo computer on the center carb, then trigger the outer carbs with a second EEC4. That way, up to 60% throttle, you'd be using up to 60 hp, then the others would start to open up, and then produce up to 285 hp.
You'd use a feedback O2 sensor, and you could use the stock 1981 to 1983 B and X code 3.3 iron header with a steel port divider, and a gutted pellet 'football' cat from any 81-83 3.3 powered Fox.
http://s529.photobucket.com/albums/dd33 ... 0Ranchero/
The TBi is just a 1946 Holley with the worlds best TBi injector. It's linkage is pure 1978-1983 Fox 200, and 1984 US and 1984-1987 Canadian 1949 and its feedback versions, the 6149/6153. A 1946 Holley is driven from the back of the carb pointing to the firewall on the rear drive Fox, but the 1949/6149/6153 and TBI are actuated from the drivers side on the West East engined Tempo. Oh, and the Taurus 2500 with 100 hp from 1986 to 1990. Plenty of messed up rental or repmobiles around to pick from in a car yard, if you know what to look for.
You need to study these pictures
Donar engine--->
Sitting clocked anticlocwise 90 degrees on one of our forum members efi Mustang
|
|
v
And a view of the TBI unit from my mates US market 85 Alaskan Ford Tempo 2300 he imported to New Zealand
There are four problems to cover off first
1.As far as TBI's go, they are monsters, two of them would be enough to wake up make a 5.7 84 Crossfire Corvette or 5.0 235 hp TBI Camaro. The problem is that the delivery pounds per hour is set for 90 to 100 hp each depending on color. Three would be almost 285 to 300 hp. Tripower kits are normally made for small upgrades in the 120 to 220 hp range, so three stock blue or green injectors are over kill unless you really work that 200 with a huge 278 or bigger cam, 10:1 compression, better ports, big exhast and a set of close ratios and a demon diff ratio to cope with an overall loss of low end torque. On the basis of sizing, three TBi's are the same as three HS6's or CD175's like used in the 282 hp the 1967 to 1972 Aston Martin DBS 4.0.
2.Biggest issue is that the Offy or Edlebrock intake is too small for the other carbs, always has been since they were first devised.This limits power potential for any given combination to about 180 on a 200, maybee 200 on a 250 with all the right mods. Cam timing needs to be altered to build pressure on these carb configuations because the 200 and 250 engines are just like a making a worked 400 hp 460 breath through a 500 cfm 2-bbl Holley. There isn't the room to hog the Tri Power intake out to 1.75" (or 45 mm) for each barrel. In the Offy for the later EO head, each intake is only 1.09" or 28mm for the outers and whaetever the inner is. The Weber 34 goes on them, but they are just 29 mm venturi carbs. You'll have to make an adaptor to merge and waist the 1.75" hole to 1.09" at the outers(45 mm hole down to 28 mm). The TBI and carb share that huge 1.75" throttle body, same as the US and Canadian carb version of the Tempo.
3. The inlet to each of the three throttle body injection units is oval shaped, and so it can't go in the stock postion, it has to be turned clockwise (as you look at the front of the car from the radiator) through 90 degrees to allow the three air inlets to point over the rocker cover. I've been told the air horn on the TBi is able to be clocked without moving the throttle body, but I've not seen that.
That makes the linkage simple as long as you have space to use the stock Offenhauser linkage off the spring side of the Tbi. There isn't the room to run the linkage between the rocker cover and TBI units. Normally you should never operate an accelerator from the other side of the carb shaft, but on the TBI, it should be okay.
4. The TBi operation. Basically, you can use the stock TBi and convert your Duraspark to Thin Film Ignition, and run the stock EEC4 Tempo computer on the center carb, then trigger the outer carbs with a second EEC4. That way, up to 60% throttle, you'd be using up to 60 hp, then the others would start to open up, and then produce up to 285 hp.
You'd use a feedback O2 sensor, and you could use the stock 1981 to 1983 B and X code 3.3 iron header with a steel port divider, and a gutted pellet 'football' cat from any 81-83 3.3 powered Fox.
Similar threads
