2002 Ranger - TC Questions


Trojan Horse

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I had a buddy offer me a fantastic deal on a small TC & Intercooler along with some piping off of a Volvo.

What other modifications will be necessary to run the TC at 5-6 psi on my 02 Ranger?
Computer reprogramming?
Injector size change?
Fuel pressure/pump change?

Thanks.
 


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anupaum

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I had a buddy offer me a fantastic deal on a small TC & Intercooler along with some piping off of a Volvo.

What other modifications will be necessary to run the TC at 5-6 psi on my 02 Ranger?
Computer reprogramming?
Injector size change?
Fuel pressure/pump change?

Thanks.
Aside from supplying oil, you WILL have to have some way of either fooling your computer into compensating for the extra air (I THINK the memory of late model comptuers can be reflashed, can it not?), or swapping out the computer entirely. (That's what I did.) You'll need bigger injectors. I'm running 19 pound / hour injectors on mine and never get the duty cycle higher than 70% or so. Your stock fuel pump should be fine. The regulator is a rising rate item that will increase pressure as vacuum declines. That should be ok, too.

If you're running stock pistons, don't go above 5 psi.
 
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Trojan Horse

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Aside from supplying oil, you WILL have to have some way of either fooling your computer into compensating for the extra air (I THINK the memory of late model comptuers can be reflashed, can it not?), or swapping out the computer entirely. (That's what I did.) You'll need bigger injectors. I'm running 19 pound / hour injectors on mine and never get the duty cycle higher than 70% or so. Your stock fuel pump should be fine. The regulator is a rising rate item that will increase pressure as vacuum declines. That should be ok, too.

If you're running stock pistons, don't go above 5 psi.
Thanks for the info.
I'm not sure about the computer. :icon_confused:
I have an AFM PMS to tune my SC 86 Mustang and wondered if some kind of tuner was available for the 2.3 Ranger. So far I have not found any.
The oil feed/return won't be a problem.
I have a set of 19lb & 24lb injectors so I'm good to go there.
 

anupaum

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We used to have a list member named George, who drilled out the sampling tube of his EEC-IV computer, installed 19 pound / hour injectors and let the computer adapt. He was running 3 times the boost that I do, and had been doing so for many years. (Forged pistons, though!) I know the mod works for the EEC-IV, but I don't know about the computer in YOUR truck.
 

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We used to have a list member named George, who drilled out the sampling tube of his EEC-IV computer, installed 19 pound / hour injectors and let the computer adapt. He was running 3 times the boost that I do, and had been doing so for many years. (Forged pistons, though!) I know the mod works for the EEC-IV, but I don't know about the computer in YOUR truck.
Do you mean a sampling tube on the MAF meter?
There is no sampling tube I know of, or have heard about on the computer.:icon_confused:

The main thing I'm concerned about with the computer is the fuel injector pulse width and timing. I may be able to add a Boost Timing control from MSD to take care of the timing, but I wonder if the computer will adapt and supply enough fuel?
As long as it doesn't let the engine lean out or detonate, it should work. I hope.
 

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Your best bet is some dyno time and a professional tuner. Its more complex than just adding more fuel and retarding the timing. Although I will admit, there are plenty of vehicles that simply add more fuel and retard the timing. If you get a professional tune you know the engine is always running efficiently whether it be idle, cruise, or WOT. You don't have to worry about burning a piston every time you hear the turbo whistle. And you have the benefit of more power vs just forcing air into the engine.
 

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a 2002 is going to be a duratec which is far different than the 2.3 turbo (lima). it can still be turboed (anything can be turboed, really) it's just going to be different (meaning more expensive)

the sampling tube is in the MAF, not the computer. what george did was put a sampling tube in the MAF that he somehow matched with his injectors.

with a 2002, buy an SCT tuner and you will be able to change more paramaters than you even want to.
 

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Your best bet is some dyno time and a professional tuner. Its more complex than just adding more fuel and retarding the timing. Although I will admit, there are plenty of vehicles that simply add more fuel and retard the timing. If you get a professional tune you know the engine is always running efficiently whether it be idle, cruise, or WOT. You don't have to worry about burning a piston every time you hear the turbo whistle. And you have the benefit of more power vs just forcing air into the engine.
Thanks, but a dyno & pro tuner is not an option around here.
 

Trojan Horse

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a 2002 is going to be a duratec which is far different than the 2.3 turbo (lima). it can still be turboed (anything can be turboed, really) it's just going to be different (meaning more expensive)

the sampling tube is in the MAF, not the computer. what george did was put a sampling tube in the MAF that he somehow matched with his injectors.

with a 2002, buy an SCT tuner and you will be able to change more paramaters than you even want to.
C&L makes MAFs' with changable sampling tubes. Maybe he had one?
Matching the MAF to the injectors is not a problem. I have a 60mm 19lb MAF & a 75mm 24lb MAF.
Is there an SCT Tuner for the 2.3? :icon_confused:
I have been unable to find one searching to date.
 

anupaum

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Thanks, but a dyno & pro tuner is not an option around here.
What did we EVER do in the days when we had carburetors and tuned by ear? Sheesh!

You CAN tune a fuel-injected vehicle yourself, provided there's a way to flash the computer's memory. I've been driving mine for years and it's never been anywhere NEAR a dyno. The truck passes the bi-annual emissions tests without any difficulty, either.

Yes, a dyno and a professional tune would be nice, but it's not strictly necessary if you're careful.

George removed the electronics from the MAF sensor and drilled the sampling tube to 15 / 32 to accomodate 19 pound / hour injectors. The EEC-IV computer compensates after driving for about 100 km or so.

That's the first thing I did before installing the blower on my truck. The only reason it didn't work well for me is because of the lag time between the MAF sensing more airflow and the actual delivery of said air into the combustion chamber through nearly 10 feet of tubing and the intercooler. It's a problem on supercharged engines where the throttle has to be in front of the blower, but isn't an issue for turbos.

Now, whether you can do this on YOUR computer is a question I can't answer . . .
 
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Bill G

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What did we EVER do in the days when we had carburetors and tuned by ear? Sheesh!
I still do on my old 65 Chevy C10 truck with a 283.

I can still set the points with a match book, static time the distributor to 10* btc without a timing light and adjust the a/f without a tach. Try and learn how to do stuff like that from a Haynes Manual.

I would bet most people lately haven't even held a set of points in their hands.
 

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megasquirt stand alone. 19lb injectors on a turbo? thats tiny. The svo uses 36lb stock and the volvo uses 32lb~ ish stock
 

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What did we EVER do in the days when we had carburetors and tuned by ear? Sheesh!
Been there, done that, can still do that. I started out when there were no computers period.

You CAN tune a fuel-injected vehicle yourself, provided there's a way to flash the computer's memory. Therein lies my problem. I have been unable to find a tuner that will work with my truck.

Yes, a dyno and a professional tune would be nice, but it's not strictly necessary if you're careful. True, never had one before.

George removed the electronics from the MAF sensor and drilled the sampling tube to 15 / 32 to accomodate 19 pound / hour injectors. The EEC-IV computer compensates after driving for about 100 km or so.
I wonder how he figured out what size to drill?

Now, whether you can do this on YOUR computer is a question I can't answer . . . Aaaarrrgggghh! That's what I can't determine either.
Thanks!
 

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megasquirt stand alone. 19lb injectors on a turbo? thats tiny. The svo uses 36lb stock and the volvo uses 32lb~ ish stock
You may be right, but it's only a 2.3 and the boost will only be 5-6lbs.
 

turbo cat

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you can also strap an adjustable fmu to the setup and adjust it using a wideband 02
 


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