POWER CURVES: N/A vs. S/C & Turbo

streetstang03

unModerator

Dec 27, 2003

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1

0

the dark side of the moon/home of the 1999, 2003,

Dec 21, 2004

#1

• Dec 21, 2004

• #1

Alright, lets get a good thread discussing the power curves of each. Which is better for daily, race, and weekend warrior cars? Feel free to get into cent. vs. roots vs. twin screw blowers as well. Post dyno graphs and good, credible sources/articles.

 

M

mrpositraction

New Member

Aug 28, 2004

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Columbia, MO

Dec 21, 2004

#2

• Dec 21, 2004

• #2

Here we go again!!!!

The power curve of the twin screw will resembele the stock torque (straight and flat) curve were as the centri will gain more torque as the rpms climb. I am not going to comment on the other question, there will be flaming everywhere, good luck w/ that.

 

mogs01gt

Founding Member

Jul 22, 2002

3,113

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119

Ohio

Dec 21, 2004

#3

• Dec 21, 2004

• #3

twin screws are great for the street. N/a cars produce a lot of power in the upper RPMS and depending on the cams produce nice midrange(me)

TURBO's OWN ALL. Twins particularly

 

Zinc03GT

New Member

Apr 21, 2004

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Mass

Dec 21, 2004

#4

• Dec 21, 2004

• #4

Are you talking strictly 4.6s, or any motor? This is way too general. I'd take a n/a 427 over a turboed 4 cylinder.

 

streetstang03

unModerator

Dec 27, 2003

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1

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the dark side of the moon/home of the 1999, 2003,

Dec 21, 2004

#5

• Dec 21, 2004

• #5

lets stick with our motors or V8's. im just trying to make an informative thread in tech that will benefit all

 

streetstang03

unModerator

Dec 27, 2003

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1

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the dark side of the moon/home of the 1999, 2003,

Dec 21, 2004

#6

• Dec 21, 2004

• #6

oh, and lets assume same HP for each motor as well.

 

Modular2v

Founding Member

Jun 30, 2002

3,222

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99

oklahoma

Dec 21, 2004

#7

• Dec 21, 2004

• #7

well if all the motors had the same hp...i would defenitly be more into the NA

 

00s281sc368

New Member

Dec 14, 2003

532

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Fremont, CA

Dec 22, 2004

#8

• Dec 22, 2004

• #8

Get the december & january issues of MM&FF. They compare eaton roots vs Kennebell twin screw vs Vortech centri vs bi-turbo on a 03 cobra engine.
With charts of boost vs rpm, rwHP and rwTQ vs rpm for each.
The best and most instructive test I've ever seen.

 

00s281sc368

New Member

Dec 14, 2003

532

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Fremont, CA

Dec 22, 2004

#9

• Dec 22, 2004

• #9

By the way, it's on a 03 cobra engine, but the same results at different level applies for other blocks.