gen2 stock injector size and fuel pump

by **anwagbo3000** » Fri Apr 17, 2009 8:07 am

does anyone know what the stock injector size on the gen2 v6 is, i have searched and found nohing, i even called the dealership and they have no clue, and also the fuel pump size as well, thanks

by **anwagbo3000** » Fri Apr 17, 2009 10:30 am

no one can help huh!

by **GzNutz** » Fri Apr 17, 2009 2:30 pm

I wish I knew.

by **GzNutz** » Fri Apr 17, 2009 2:51 pm

Not sure if this will help, but I found this on pg 15 ( FU-18 ) of http://cns-design.ru/files/solara/pdf/3MZ-FE%20Fuel.pdf

Injection Volume
60 to 73 cm 3 (3.7 to 4.5 cu in.)
per 15 seconds

So a min of 60x4= 240cm^3/min

by **gnegroni** » Fri Apr 17, 2009 3:21 pm

So thats a range of 240cc to ~300cc/min.

I know the 2AZ-FE injectors flow enough for GReddy turbo application.

by **anwagbo3000** » Sat Apr 18, 2009 3:36 am

This helps, one of my tuners told me that me having bigger injectors makes it more safe for my car, I guess since I'm running so lean, at 14, that my car runs hotter, although it doesn't seem like its running hotter, but he told me bigger injectors can help and possibly get me more power(I gotta confirm this first, I can be wrong guys)

by **gnegroni** » Sat Apr 18, 2009 9:43 am

anwagbo3000 wrote:This helps, one of my tuners told me that me having bigger injectors makes it more safe for my car, I guess since I'm running so lean, at 14, that my car runs hotter, although it doesn't seem like its running hotter, but he told me bigger injectors can help and possibly get me more power(I gotta confirm this first, I can be wrong guys)

Modern cars typically run rich @ 12.5 when at high RPM conditions (not sure if only at WOT) to make engines less prone to destroying themselves.

What exactly was your setup?

by **anwagbo3000** » Sat Apr 18, 2009 9:54 am

^ the only mod I had was the cpe tuneable and custom cat-back exhaust system

by **anwagbo3000** » Sat Apr 18, 2009 10:40 am

GzNuts, I have good news and bad news. The info that you need, they can't give it away to anybody but me, because they would be losing business. I'm sure you can understand that the way tuners do their business, and the relationship I have with them is on a friendship basis. So I can't just give the mapping away. Good new is my dyno numbers are off because they use the gross weight of 4400lbs which is on the inside of the door instead of the actual weight which is 3200lbs. That makes a big difference. So I will be dynoing my car today and I will update my numbers on this thread. Sry for the inconvenience, I tried.

by **GzNutz** » Sat Apr 18, 2009 11:21 am

Thanks for trying. I definately understand. Could you tell me though if the CP-e box just modifies what the car's ecu is reading or is it bypassing the ecu, not using the car's a/f readings.

That's some pretty good news that the weight was off. Can't wait to hear the new results!

by **gnegroni** » Sat Apr 18, 2009 12:03 pm

You shouldn't need bigger injectors with CPe and full exhaust.

by **youngblood** » Sat Apr 18, 2009 12:37 pm

anwagbo3000 wrote:GzNuts, I have good news and bad news. The info that you need, they can't give it away to anybody but me, because they would be losing business. I'm sure you can understand that the way tuners do their business, and the relationship I have with them is on a friendship basis. So I can't just give the mapping away. Good new is my dyno numbers are off because they use the gross weight of 4400lbs which is on the inside of the door instead of the actual weight which is 3200lbs. That makes a big difference. So I will be dynoing my car today and I will update my numbers on this thread. Sry for the inconvenience, I tried.

Stupid question here- what difference does weight matter on a dyno? If the car never physically moves, what calculation does weight figure into?

by **anwagbo3000** » Sat Apr 18, 2009 1:03 pm

GzNuts, the black box is like a piggy back, it tells the ecu that your car doing "A" when your car is really doing "B", I think with our ecu, if you don't lie to it then it will not produce the power you want or you will get a cell

Youngblood, I am using a mustang dyno, so it matters about how much the car weights, they put in that my car weighed 4442 which is close the gross weight of the vehicle or maximum weight that can be in at one time, but our cars are closer to 3200 pounds, a mustang dyno take real world power, so it tells you whaat your car will be doing on the street not what your car will do on the dyno

by **anwagbo3000** » Sat Apr 18, 2009 3:47 pm

So at the end of the day my dyno numbers didn't change, oh well, but I will be doing jp performance exhaust and prolly nitrous soon, but till then I will be on the low and enjoy life, I need like 3000 dollars in order to do the headers y-pipe and nitrous setup which will include the labor from my tuners, so till then, I will be on the low looking for money from everywhere.....

by **GzNutz** » Sat Apr 18, 2009 5:59 pm

youngblood wrote:Stupid question here- what difference does weight matter on a dyno? If the car never physically moves, what calculation does weight figure into?

The Mustang dyno measures hp at wheels. I believe the resistance of the drum is adjusted to simulate the force on the wheels from the "street".? This force is directly realted to the weight (mass x gravity) of the vehicle. Measuring engine hp at the crank would be the power with the car not physically moving (no weight). I hope this helps.

gen2 stock injector size and fuel pump

gen2 stock injector size and fuel pump

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