supercharger question may fit here too

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08-30-2009, 04:57 PM

#11

disposablehero27

4th Gear Member

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Join Date: Jul 2009

Location: Virginia

Posts: 1,216

nice!!

08-30-2009, 06:55 PM

#12

mustang51js

3rd Gear Member

Join Date: Aug 2009

Location: nj

Posts: 554

with 3.90 my speedo is off by 12 mph, ill have to look into that cal kit

08-30-2009, 07:00 PM

#13

a_penquin

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Join Date: Jul 2009

Location: GA

Posts: 1,022

Quote:

Originally Posted by disposablehero27

it depends on how fast your going.. the 3.73's but an extra 7-10 on it.. the 4.10s are anywhere from 4mph-21mph. at 95 i'm going 75 and 50 i'm going 30 something.. i can't remember.

7-10 off sounds like mine.... prior owners might have put 3.73s in then

Im sure bald tires probably dosent help though

08-31-2009, 06:31 AM

#14

vanquish

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Join Date: Mar 2008

Location: asdf

Posts: 1,600

Quote:

Originally Posted by disposablehero27

When i put the procharger on, can i expect it to decrease MPG as expected or will it act like a turbo and actually increase MPG?

At part throttle and idle my air/fuel ratios are the same as they were before I had a blower on. With that said if you stay in part throttle and idle your MPG is going to also be the same as stock (or better if your tune leans out part throttle and idle AFR) with a decent tune.

08-31-2009, 06:56 AM

#15

1995procharged

Join Date: Aug 2009

Location: Ga

Posts: 32

Quote:

Originally Posted by disposablehero27

When i put the procharger on, can i expect it to decrease MPG as expected or will it act like a turbo and actually increase MPG?

well i have a procharger on my mustang and it gets pretty good mpg i can go from Atlanta,ga to Chattanooga,Tn which is about an 2 hour drive and use just just a little more then 1/4 of a tank and it about 120 mile drive but if you like getting on it you will be making a lot of pit stops at the gas station