Supercharger efficiency ques.

Bikerdrumr

Member

Dec 18, 2006

52

1

8

Burlington, NJ

Apr 11, 2008

#1

• Apr 11, 2008

• #1

I don't know if I'm posting in the right area...but,

Take two identical GT's, same gearing, break-in, and same everything, and you put let's say a whipple in one of them. Take them to an interstate with a full tank, and run them both steady @ about 70-75 mph for about 30 miles, do they use the same amount of gas?

Someone told me that w/ those conditions, the supercharger actually is more efficient. Is that true?

Thanks.

 

gmantheman

Member

Dec 30, 2007

483

1

16

Escondido, CA

Apr 11, 2008

#2

• Apr 11, 2008

• #2

Not sure, but the people I have talked two with S/C were getting 23-25 MPG on the hwy that is about what a N/A 05-08 Mustang GT would get.

 

anthony05gt

Active Member

Mar 18, 2006

1,262

1

37

Maryland

Apr 12, 2008

#3

• Apr 12, 2008

• #3

I would think it's true with a centrifugal blower. I was getting 18.9 mpg with the procharger on my '05 with 4.10 gears. now I have a Whipple and the 3.55 gears are back in. I'm getting less than 15 mpg.

 

LV51FER

New Member

Oct 25, 2005

318

0

0

Caerphilly, Wales, UK

Apr 13, 2008

#4

• Apr 13, 2008

• #4

Depends on the tune. My 05 with HO Vortech is as economical as stock but higher octane gas gives you more mpg anyway as it contains more energy in effect.

 

H

Hoboattacker

New Member

Sep 7, 2005

542

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0

Baton Rouge (LSU) / Houston, TX

Apr 13, 2008

#5

• Apr 13, 2008

• #5

In the city I get 13.3-13.7mpg. When I am on the highway I get 23-27mpg (better than when i was NA getting 22.5mpg)

 

Steel

New Member

Apr 13, 2006

0

0

0

Modena , Italy

Apr 15, 2008

#6

• Apr 15, 2008

• #6

I've lost 1/10th mpg with whipple in cruising at 85 mph, mainly because of bigger injectors ; air/fuel is a bit rich on S/C to be safe .

Just my 02

 

blackonblack06

New Member

Nov 25, 2005

108

0

0

San Antonio, TEXAS

Apr 15, 2008

#7

• Apr 15, 2008

• #7

Fuel efficiency has increased for me. I have a Vortech S-Trim centrifugal style supercharger. I get better gas mileage especially in places where I can put the cruise control on.
I barely press the accelerator when driving around town and only romp on it either when I want or need too. My 06 vert is a dailydriver at 39,000 miles.

 

jerzeykilla

Member

Aug 27, 2006

72

0

7

Apr 16, 2008

#8

• Apr 16, 2008

• #8

with a centrifugal super charger, your not hitting boost untill maybe 2200 rpm. I personally have a procharger tuned by Jim Sr. himself from JDM engineering and get 25+ doing about 60 on the highway. Cant speak for twin screw or roots but im sure its less cause your constantly throwing boost in your motor

 

69mach1-409

Member

Apr 21, 2004

81

0

16

South Jersey

Apr 17, 2008

#9

• Apr 17, 2008

• #9

I thought there was a boost by pass on pos disp blowers, so you aren't in boost all the time unless intake vacuum calls for it?

 

1hOtStAnG

New Member

Jan 21, 2008

39

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0

Apr 17, 2008

#10

• Apr 17, 2008

• #10

Steel said:

I've lost 1/10th mpg with whipple in cruising at 85 mph, mainly because of bigger injectors ; air/fuel is a bit rich on S/C to be safe .

Just my 02

Click to expand...

That goes for me too.

 

H

Hoboattacker

New Member

Sep 7, 2005

542

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0

Baton Rouge (LSU) / Houston, TX

Apr 18, 2008

#11

• Apr 18, 2008

• #11

69mach1-409 said:

I thought there was a boost by pass on pos disp blowers, so you aren't in boost all the time unless intake vacuum calls for it?

Click to expand...

I know for a fact the saleen blower has this. I'm not sure about the whipple but I THINK it does.