Injectors And Chip

2342 Views 11 Replies 6 Participants Last post by sixfofalcon, Jan 30, 2004

ffvulcanpowah

Discussion Starter · Jan 22, 2004

Hi friends. Im sure people have asked about this before, but I wouldnt know where to look, so I started a topic.

The next mod I want to get is a superchip or performance chip of some kind. At the time I get the chip, I would also like to do larger injectors and fuel pump. I saw somewhere that the FFV motors (i have an ffv motor) have larger injectors than the regular vulcans. It said I had 23.5 lb/hr injectors. I really have no way of knowing if this is true or not, but if it is, then couldnt I just stick with those injectors and utilize the increased amount of fuel the chip will send without changing injectors? Now, if my car doesnt have the larger injectors, what size injectors would you recommend? Where might I find them from? What fuel pump should I use? Thanks for all of your help.

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sixfofalcon

· #2 · Jan 22, 2004

AFAIK, all the FFV motors have the bigger injectors (otherwise they wouldn't be FFV, b/c they couldn't pump the E85 at the required higher rate.) I'm not sure how the PCM knows to react to the different fuel... I'm guessing there is a sensor in the fuel regulator or somewhere in the system that analyzes the alcohol content of the fuel. At any rate, I think that given that you have the bigger injectors, the PCM will allow them to pump at the higher rate any time that the engine requires it. So if you added nitrous or a blower or something, I would think the injectors would "rise to the occasion" based solely on the stock PCM programming.

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ffvulcanpowah

Discussion Starter · #3 · Jan 22, 2004

There is a sensor somewhere on the car that senses the gas/e85 mix. My car has a problem running lean, so maybe the chip will open things up a bit.

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silvapain

· #4 · Jan 23, 2004

I would go to Ford Truck Enthusiasts, and talk to ken in the computer chips forum. He will be able to tell you honestly if you need to get a chip. I don't think that the injectors will automatically compensate for a blower. It's just a guess, though. A chip will advance timing, not help the car to run any more rich or lean. the O2 sensors take care of that. If it's running lean, I would look into replacing the sensors.

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BMWevo600

· #5 · Jan 25, 2004

QUOTE

Taurussetypes Posted on Jan 22 2004, 03:19 PM
There is a sensor somewhere on the car that senses the gas/e85 mix. My car has a problem running lean, so maybe the chip will open things up a bit. [/b]

just a smart a** question "how do u know that u are running lean?"

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ffvulcanpowah

Discussion Starter · #6 · Jan 26, 2004

Originally posted by BMWevo600@Jan 25 2004, 05:41 PM
QUOTE

Taurussetypes Posted on Jan 22 2004, 03:19 PM
There is a sensor somewhere on the car that senses the gas/e85 mix. My car has a problem running lean, so maybe the chip will open things up a bit.

Click to expand...

just a smart a** question "how do u know that u are running lean?" [/b][/quote]
Well, im not 100% sure that it is running lean. I know that when I put anything less than premium unleaded gas in my car, it pings like a bee-otch. What would that mean?

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mikehawk

· #7 · Jan 26, 2004

Originally posted by Taurussetypes@Jan 25 2004, 10:53 PM
Well, im not 100% sure that it is running lean. I know that when I put anything less than premium unleaded gas in my car, it pings like a bee-otch. What would that mean?

It means it's a vulcan.

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sixfofalcon

· #8 · Jan 26, 2004

Originally posted by mikehawk+Jan 26 2004, 07:29 AM-->QUOTE (mikehawk @ Jan 26 2004, 07:29 AM)

<!--QuoteBegin-Taurussetypes

Click to expand...

@Jan 25 2004, 10:53 PM
Well, im not 100% sure that it is running lean. I know that when I put anything less than premium unleaded gas in my car, it pings like a bee-otch. What would that mean?

Click to expand...

It means it's a vulcan.[/b]

A Vulcan with carbon in the combustion chambers. Time for Techron.

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ffvulcanpowah

Discussion Starter · #9 · Jan 27, 2004

Originally posted by SixFoFalcon+Jan 26 2004, 08:16 AM-->QUOTE (SixFoFalcon @ Jan 26 2004, 08:16 AM)

Originally posted by [email protected] 26 2004, 07:29 AM
<!--QuoteBegin-Taurussetypes

Click to expand...

Click to expand...

@Jan 25 2004, 10:53 PM
Well, im not 100% sure that it is running lean. I know that when I put anything less than premium unleaded gas in my car, it pings like a bee-otch. What would that mean?

Click to expand...

It means it's a vulcan.

Click to expand...

A Vulcan with carbon in the combustion chambers. Time for Techron. [/b]

I suppose it is time to give the engine a good once over with some super good fuel cleaner and some pre-mi-um gas. This is what I get for buying a company car. The thing had to suffer through 3 years of regular gas only.

Now that the car is in my caring hands, the engine shall be squeaky clean inside and out.

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-qaz-

· #10 · Jan 28, 2004

Just add some fuel to the fire (no pun intended) the MAF also has a lot to say about the fuel:air mixture not only the o2 sensors. Before replacing the o2 sensors that are kidna pricey make sure they are the cause.

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ffvulcanpowah

Discussion Starter · #11 · Jan 29, 2004

after putting the true cold air intake on, any signs of pinging have diminished. The old short ram i had on it was making the air that the maf/iat received too freakin hot. Now, the colder air has richened her up a bit. Woo Hoo for CAI's!

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sixfofalcon

· #12 · Jan 30, 2004

Originally posted by Taurussetypes+Jan 26 2004, 07:45 PM-->QUOTE (Taurussetypes @ Jan 26 2004, 07:45 PM)

Originally posted by [email protected] 26 2004, 08:16 AM

Originally posted by [email protected] 26 2004, 07:29 AM
<!--QuoteBegin-Taurussetypes

Click to expand...

Click to expand...

Click to expand...

@Jan 25 2004, 10:53 PM
Well, im not 100% sure that it is running lean. I know that when I put anything less than premium unleaded gas in my car, it pings like a bee-otch. What would that mean?

Click to expand...

It means it's a vulcan.

Click to expand...

A Vulcan with carbon in the combustion chambers. Time for Techron.

Click to expand...

I suppose it is time to give the engine a good once over with some super good fuel cleaner and some pre-mi-um gas. This is what I get for buying a company car. The thing had to suffer through 3 years of regular gas only.

Now that the car is in my caring hands, the engine shall be squeaky clean inside and out.[/b]

You don't need premium gas. It looks like you resolved the pinging, so I would run regular only. Lower-octane gas has more energy per unit mass (or volume) so it's actually better to run regular if you can do it w/o pinging or having the knock sensors pull back your timing advance. Some good decarbonizer (fuel additive like techron or a similar product) can't hurt.

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