MPI Tuner Anyone?

[70]

I have no issues with any type of acceleration. It is smooth throughout the entire RPM range, except when the turbo kicks in. (evil) Here's a pic of my xtra injectors:

I see that in the pic, your extra injectors point straight into the pipe.

I thought they were supposed to sit at a 20* angle to the pipe so as to spray into the pipe to go with the airflow?

 

[MPNick]

I see that in the pic, your extra injectors point straight into the pipe.

I thought they were supposed to sit at a 20* angle to the pipe so as to spray into the pipe to go with the airflow?

We have found that the fuel mix is better at 90 dergrees. I never posted about them being 20 degrees, it was another Nick.

Thanks again

Later.............Nick

 

[MPNick]

I have a Uego wideband.. it is the same one kooldino has, im pretty sure you have seen his.

Not sure about your sensor. How many wires does it have. Most are four wire sensors and these are not Wide bands.


Thanks again


Later.........Nick

 

[70]

We have found that the fuel mix is better at 90 dergrees. I never posted about them being 20 degrees, it was another Nick.

Thanks again

Later.............Nick

Ok.

I wasn't saying that you had posted that 20* was better, I had read that else where on the net.

Interestingly, not from the other Nick.

 

[igdrasil]

Well...I *think* is better to point it directly to the TB opening

 

[Bigg Tim]

The injectors have a 4 nozzle spray pattern, so I believe it "fogs" the fuel into the TB pipe to be mixed with the compressed air from the turbo.

 

[Equinox]

The injectors have a 4 nozzle spray pattern, so I believe it "fogs" the fuel into the TB pipe to be mixed with the compressed air from the turbo.

according to Corky Bell the best angle is LESS than 20 degrees, NOT 20 degrees.

 

[igdrasil]

can someone show a pic of the *ideal* setup?

 

[70]

The injectors have a 4 nozzle spray pattern, so I believe it "fogs" the fuel into the TB pipe to be mixed with the compressed air from the turbo.

To me, it seems like you would saturating that one area of the pipe since both are in-line with direction of air-flow at a 90* angle to the flow.

But, I guess if it works fine, great.

 

[70]

according to Corky Bell the best angle is LESS than 20 degrees, NOT 20 degrees.

Ok, now I can see where people would just use the 20* mark then...

 

[PaulMP3]

I think the 20 degree number refers to if you put them in the intake runners, not the when placed before the throttle body.

 

[70]

I think the 20 degree number refers to if you put them in the intake runners, not the when placed before the throttle body.

Do you have a pic of yours?? Or are your running the same ways as Bigg Tim's?

 

[Equinox]

I think the 20 degree number refers to if you put them in the intake runners, not the when placed before the throttle body.

correct

 

[70]

correct

So, then just so I am on the same page as you guys, in the intake runners, 20*.

In the charge pipe pre-TB less than 20*?

 

[PaulMP3]

Here is a pic of my setup.

 

[70]

I appreciate the shot, but do you have anything that isn't that close. I can't tell what's going on there.

 

[PaulMP3]

I appreciate the shot, but do you have anything that isn't that close. I can't tell what's going on there.

this might help a little. you can see the placement of the injectors in regards to the TB. Check the first 2 pics i posted too.. i edited and added one, while you posted.

 

[Equinox]

Do you have a pic of yours?? Or are your running the same ways as Bigg Tim's?

Less than 20 degrees in the intake runners, the lower the better.

In the TB, they are saying a 90 degree opposition to the TB is best. Which makes sense, to create turbulence in a perfect tube you need to offset the angle, allowing the air and fuel to mix.


Paul I don't suppose that setup comes with all the wagner kits, hmm? (wow)

 

[70]

this might help a little. you can see the placement of the injectors in regards to the TB. Check the first 2 pics i posted too.. i edited and added one, while you posted.

OK cool...Thanks for the shots. I see now.(wiggle)

 

[MPNick]

OK cool...Thanks for the shots. I see now.(wiggle)

Check out this links. The last photo is of the Callaway Corvette Twin Turbo. It was made by the same people that help build the MSP turbo system. If you look at the front of the throttle body you will see two big extra injectors on it. This is the way it came from Chevy when you got it. It was a 50 state legal car and at the time it was the highest hp American made car you could buy. This car was built from the ground up. They used Chevy Bow Tie block and they remachined the whole engine and cooling system to handle the extra power that it made.

http://www.corvettelegends.com/turbo.htm

The next link is for the New Edelbrock Honda turbo kit. It is one of the most complete kits you can buy today for the Honda. It is also 50 state legal. The thing to look at it the new intake that it comes with. Under the intake they have an extra set of staged injectors. To run the extra injectors they have a piggy back unit. Here is the link.


http://www.edelbrock.com/automotive/index.html

Why would companies with big dollars to make anything, go with extra injectors?

Thanks again

Later..........Nick