My Tempo EFI conversion

LincolnMarkVII":151oxxjr said:
Sorry if this is too much of a thread derailment.. but I couldn't decide if this was better here, or merited its own thread. I'll copy it to its own thread if needed. Also, apologies if it's hard to read.. caffeine hasn't kicked in yet.


1) Do those Tempo throttle bodies have to be used with the non-upgradable injectors in them, or could they be used just as a small dry throttle body with an injector bung welded into the manifold nearby? (or multiples for multiport)


2) What about running a 250 almost like two separate turbo inline-3s? What I had in mind was two small unconnected intake manifolds (say on the CI aluminum head or an Oz head, or a heavily modified log) each with its own small throttle body.. then two small unconnected exhaust manifolds each with its own turbo from a 2-liter engine. I realize this description may annoy some, but the best way I can think to describe the intakes is to make something looking like the Mopar logo M, put the throttle body where the three legs meet, and put the injector below the TB pointing down the inside of the middle leg. (I can try to draw a diagram if I've been too vague in my description)

I'm guessing sensors may have to be doubled up.. and that it's more complicated than a single TB and larger turbo.. but would there be any benefit to doing it like that if it's feasible, even if that benefit is something not immediately obvious like saving weight vs. a larger manifold? Also, if you've read my thread on my plans to build for low revs, (idle to 4000) would the really short intake lengths negatively impact that?
Click to expand...

The only thing that I know is, runner length has little to no impact on turbo tuning. The pressure waves just aren't there in a boosted application like they are in N/A engines.

EDIT: Now that I look into it a little more, the basic rules still apply. But it is not nearly as critical.
 
Here is a recent picture of the falcon. I did a few changes, i think it looks better.



There is still tape on the oil-fill hole though, need to find something nice looking to put on it
 
I still need to put a helper spring in. That spring that runs from the throttle shaft to the passenger tower brace is a temporary one untill i find one that will fit in with the stock spring (hiding around the throttle shaft). The temporary one works great, but looks bad. Other than that, im happy with it.
 
Moe$,

Any updates on your status? I'm collecting all the bits needed for this upgrade & wanted to see how the pioneer was doing...

I'm driving my Ranchero on the weekends (darn Antique Auto tags!) and building a 200 up in the garage. I have an OZ head & was thinking of getting a CI intake (the PO destroyed the original intake in a 4v conversion) & putting on a Tempo or maybe a K car (they did that on the Maverick in the Tech section) TBI before going to the MPFI. I may be begging for your tables in the near future.

Thanks,

John
 
The falcon is doing good. I have not done anything to it in the last 6000+ miles, other than a few minor code tweaks. Its running very well as is, and so far has been reliable.

I will be happy to give you the code im using, for only 7 easy payments of $9.95 :D :LOL:

But really, i dont think that my code will work to great for you since you plan on having a CI head. This will change the VE table characteristics compared to my stock head. Also, i am using a Megasquirt1 v2.2, if you are planning on using a megasquirt2 (which has more features) i dont think you can just load my code into your computer, there is no backwards compatibility. Maybe you could look at my code and input the data into yours manually, not sure.


4-28-08.rar enjoy

Moe.
 
SWEET AND AWSOME TOPIC!!! :D :D
Looking at yours Moe$'s, I wonder if there is a easy way to put the air intake over on the other side of the engine, away from the exhaust heat.

Time to go get parts.......after the Wrangler is running......the front patio is done....and the axle swap on the other Jeep is done along with fuel injection......oh yea, and after the Granada brake and rear end swap on the mustang that will get this up grade. :cry: but still, thanks for the TON of info Moe$
 
The neat thing about that unit is that the upper air horn can be removed and rotated. Just undo the four screws and turn it the direction you want.
 
Fuel Pump on Summitracing.com

You can also use a summit brand fuel pump, its cheaper. It might have a flow problem though, i did when i used the msd one. They push out too much fuel.

Or you could use a factory pump like someone said somewhere back in the thread. I think they said a f-150 fuel pump is external, or maybe it was a ford van...
 
Im using this Holley one, the 927, on my caddy and plan to use the same one on the mustang with my tempo tbi.

http://www.jegs.com/p/Holley/754836/10002/-1/10307

Its the replacement with the one that came with the ProJection system. Even the old crusty one that came with my used kit worked after getting it primed for the first time. Many people complain about the noise of electric pumps. I cant even hear this one if I listen for it standing next to the back of the car.

If you have a gas tank with a flange a couple of beam clamps work great.
pump1.jpg
 
fordconvert":12r9geqn said:
Im using this Holley one, the 927, on my caddy and plan to use the same one on the mustang with my tempo tbi.

http://www.jegs.com/p/Holley/754836/10002/-1/10307

Its the replacement with the one that came with the ProJection system. Even the old crusty one that came with my used kit worked after getting it primed for the first time. Many people complain about the noise of electric pumps. I cant even hear this one if I listen for it standing next to the back of the car.

If you have a gas tank with a flange a couple of beam clamps work great.
pump1.jpg
Click to expand...

Is that plastic filter mounted on the pressure side and how much pressure does that pump make?
 
Universal In-Line Fuel Pump
60 gph @ 15 psi/43 gph @ 45 psi
255 pph @ 15 psi/180 pph @ 45 psi
3.5 amps @ 15 psi/8 amps @45 psi

THe plastic thing is a first stage filter on the suck side. Its a holley piece made to go before the pump.
 
Moe$

You used the throttle body and injector from the 2.3L Tempo. Did you ever consider using the ECU from the same vehicle to control the A/F ratio?

Any thoughts? Anybody? :D
 
rocklord":32etsbba said:
Moe$

You used the throttle body and injector from the 2.3L Tempo. Did you ever consider using the ECU from the same vehicle to control the A/F ratio?

Any thoughts? Anybody? :D
Click to expand...

i agree. wouldnt all of the Tempo setup be a good, low cost alternative to the MegaSquirt setup?
 
I have never looked much at the older ford computers, I do know they were among the worst to work on in stock mode. You needed a lot of books and breakout boards to even do some basic checks. I never have read anything about modifying them. There is a fair amount of info on the GM's including making them work in other makes including fords. The few I tried I never got to work quite right and making changes was kind of a pain. I feel you need to be able to at least change the VE (fuel) tables for anything other than a 99% stock application. The rest is not that big a deal as long as you can use ALL of the factory sensors. You can get a fully assembled and tested MSI for $240. Thats not as cheap as a U pull yard but still not bad. I would not personally mess with an MSI so going to the 2 drives the price up to $341 assembled. $139 MS1 kit, $247 MS2 kit if you want to put it together yourself. With MS you can use almost any combo of parts you can throw together. You can then easily change things as you learn more and get more ideas. Its not 'plug and play' but in the end I think you end up understanding more of your system and are better off.
 
Dunno if this same TBI system was used in the 2-seater escort(Ford EXT), but I had one a while back that had TBI and it was an 89 model. Also, the injector was same as the Tempo 4-cyl injector, altho engine was just a 1.9L....that bugger was FAST!!! :eek:
 
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