Ecoscort - 98 Ford Escort ZX2 ecomodding thread

[BabyDiesel]

Originally Posted by Tygen1

What are the specific issues keeping you from turbocharging? List them out, I'd like to know.
This is fun, I hope the ecomodding bug doesn't bite me again :-)

Originally Posted by pgfpro

Tygen1 nice to see you on here!!!

You know the bite has already happen

Ty, Russell is correct, you know you are already bitten. You've been on here and TeamZX2 more in the past week than in the last year!

The only issues I have with going turbo is the cost of all the parts, the need for a rebuild, and not having access to machinery to get the job done. Only 3 reasons, but 3 very big reasons!

Also, IIRC me and Russell were discussing this via PM. If I went with 2-3 psi, 250* IAT and 35:1 AFR, the software said that I would be around 64.9 mpg at speed. That seems mighty low, especially when Donkey CRX and OG VX are getting over 100 mpg @ 50 mph with no turbo. Buuuttt, I don't think his software took into consideration RE92's RRC, sub-0.20 Cd aerodynamics, weight reduction, etc. So it is really a toss up

[whatmaycome14]

Hmmm... maybe it's my ignorance talking, but why would you need to rebuild if you're running VERY LOW BOOST? After all, the turbo would be to increase efficiency, not power, yes?

[BabyDiesel]

Originally Posted by whatmaycome14

Hmmm... maybe it's my ignorance talking, but why would you need to rebuild if you're running VERY LOW BOOST? After all, the turbo would be to increase efficiency, not power, yes?

I'm probably being over-analytical when I say I need a rebuild It seems almost wrong to turbo a car with 280,000 miles on it!

This is the slightly used Wideband O2 I am buying today off of a part-out at TeamZX2.com for cheap -> Wideband Air Fuel Ratio Gauge

Russell, can this O2 take place of my stock narrowband? Or do I have to run both?

[pgfpro]

Originally Posted by BabyDiesel

I'm probably being over-analytical when I say I need a rebuild It seems almost wrong to turbo a car with 280,000 miles on it!

This is the slightly used Wideband O2 I am buying today off of a part-out at TeamZX2.com for cheap -> Wideband Air Fuel Ratio Gauge

Russell, can this O2 take place of my stock narrowband? Or do I have to run both?

Usually you will need a after market management system that will have Narrow Band O2 Simulation. Then you have to set voltage up in this software.

I would just weld in an extra O2 bung and run it with your narrow band. If you ever sell the car they make a O2 bung plug that comes with the bung.

[pgfpro]

Originally Posted by BabyDiesel

Ty, Russell is correct, you know you are already bitten. You've been on here and TeamZX2 more in the past week than in the last year!

The only issues I have with going turbo is the cost of all the parts, the need for a rebuild, and not having access to machinery to get the job done. Only 3 reasons, but 3 very big reasons!

Also, IIRC me and Russell were discussing this via PM. If I went with 2-3 psi, 250* IAT and 35:1 AFR, the software said that I would be around 64.9 mpg at speed. That seems mighty low, especially when Donkey CRX and OG VX are getting over 100 mpg @ 50 mph with no turbo. Buuuttt, I don't think his software took into consideration RE92's RRC, sub-0.20 Cd aerodynamics, weight reduction, etc. So it is really a toss up

When I ran the numbers it was based on a stock car (stock aero,tires etc) without other mods.

What the turbo does is it expands the efficient lean burn window.

A good example of this is going up a slight incline in a N/A engine. The engine will be in lean burn but won't produce enough power to keep a steady speed. The BSFC numbers crash and the car actually uses more fuel even though its in lean burn. So in this case the BSFC numbers would go from .45 to .55 BSFC.

With a turbo engine and lean burn with the same incline the BSFC stay closer to .45 and the results are less fuel for the same incline used. The turbo engine has a advantage by using a higher air pressure before the intake valve that creates more swirl and tumble and mixes better with the fuel. The turbo also keeps combustion temps down by the extra air thats added.

The expense of the turbo alone is a high cost, plus I wouldn't go turbo without running a management system that you can change the fuel and ignition tables and control open loop enable. So you have another expense.

[Tygen1]

I believe the Inovate sensor has a narrow band output. I just welded in another bung, but I don't know if BabyDiesel has a welder. The instructions for the inovate should detail how to wire up the narrow band output.

I sprayed deet on myself to keep the bugs away ;-) I've been down this road before and saw the end. It was a fun journey and now it's time for something different. That being said, I already bought lowering springs and have priced out wheel adapters so I can fit my BBS/RE92 combo, no sense in not using them. The fiesta is starting out 10mpg better than the ZX2, so it's a solid car as is. Been riding my dual sport bike a lot, modding it and exploring the vast wilderness here in South Jersey.

Where's that list of what you need to turbo? I might be able to help with some of it...I have resources :-)

[BabyDiesel]

Gotcha on how to use the wideband Russell.

Just curious, can you re-run the numbers for me just one more time? This time, let's use the theoretical, all-out eco version of the ZX2. Have 2-3 psi, 250* IAT's, 35:1 AFRs, 1700 rpm @ 45 mph, Cd of 0.15, RRC of 0.006 and the weight of 2300 lbs please!

The turbo is more efficient, no question about it. The cost of the components, the time spent with the car down and the tuning software simply put it out of my reach right now

Ty, I need EVERYTHING and you'll be getting 50 mpg out of your new-to-you Fiesta soon, no problem!

[BabyDiesel]

I spent part of Friday and part of Saturday working on the Ensightscort! Most was good, but some was an absolute nightmare!

I stripped my interior once again, except I left the inner door panels and other plastic trim pieces. There is no carpet or seats except for mine! Also the trash was cleaned out.

Passenger chair - 37 lbs.
Carpet - 10-11 lbs.
Rear bench seat - 15 lbs.
Trash - 5 pounds

67-68 pounds reduced from the interior alone!

Next was taking off the power steering pump and A/C components. I took the A/C compressor off first(easy), then A/C lines(easy), then the A/C radiator in front of the radiator was cut out(easyish).

A/C compressor - 15 lbs.
A/C lines - 3 lbs.
A/C radiator - 10 pounds

28 more pounds removed!

Power steering was next... it was difficult, no, extremely difficult. All went well except for one bolt! It took over 5 hours to remove that stinkin' bolt due to it's location. Once off, the pump, lines, reservoir and fluid lost me ~20 more pounds.

All in all, I lost right around 115 pounds from my car this weekend

It seems to be helping my mpgs too. I am up to 56.8 mpg on my recalibrated ScanGauge after 216 miles on this tank The gas needle is sitting between 1/2 and 3/4 full, so hopefully the SG isn't lying this time...

Also! I had my first 60+ mpg day today I got 60.1 going to work and 62.4 coming home for a day average of 60.75 mpg!

[pgfpro]

Originally Posted by BabyDiesel

Gotcha on how to use the wideband Russell.

Just curious, can you re-run the numbers for me just one more time? This time, let's use the theoretical, all-out eco version of the ZX2. Have 2-3 psi, 250* IAT's, 35:1 AFRs, 1700 rpm @ 45 mph, Cd of 0.15, RRC of 0.006 and the weight of 2300 lbs please!

The turbo is more efficient, no question about it. The cost of the components, the time spent with the car down and the tuning software simply put it out of my reach right now

Ty, I need EVERYTHING and you'll be getting 50 mpg out of your new-to-you Fiesta soon, no problem!

Last night I wrote a book response on your new scenario. After reading it back to myself I found that it was extremely confusing. So I'm going to do a Outline in the near future on how all this works.
On your new theoretical car the fuel mileage would be around 108 mpg based on the very low hp needed from the car itself, but there is a major hurdle that wouldn't let this happen. Engine size. More on this later.

[BabyDiesel]

108 mpg!!!!

I have a solution: Cylinder deactivation. Drop my 2.0 I4 to a 1.0 I2. Go with it rocket man