Notices
993 Forum 1995-1998

Anyone dynoed pre/post LPMM?

Thread Tools
 
Search this Thread
 
Old Feb 15, 2007 | 05:06 PM
  #1  
Svaha's Avatar
Svaha
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 527
Likes: 1
From: Riverside, CA
Default Anyone dynoed pre/post LPMM?

Considering this mod, but wondering whether it might somehow have a negative impact on performance. I know it "sounds" racier. Any traditional or butt dyno results out there?
Reply
Old Feb 15, 2007 | 05:09 PM
  #2  
jimbo3's Avatar
jimbo3
Rennlist Member
20 Year Member
 
Joined: Oct 2005
Posts: 13,460
Likes: 767
Default

There is no difference in power and no flat spots. There are some mufflers reported to produce a flat spot, but not the LPMM.

-Jim
Reply
Old Feb 16, 2007 | 12:20 AM
  #3  
VNTGSPD's Avatar
VNTGSPD
Rennlist Member
 
Joined: Jun 2004
Posts: 820
Likes: 2
From: SoCal
Default

Originally Posted by jimbo3
There is no difference in power and no flat spots. There are some mufflers reported to produce a flat spot, but not the LPMM.

-Jim
+1
Reply
Old Feb 16, 2007 | 01:53 AM
  #4  
Leland Pate's Avatar
Leland Pate
Burning Brakes
 
Joined: May 2001
Posts: 1,107
Likes: 6
From: Reno, NV
Default

The LPMM's were produced as a joint project with NASA and the USAF's Jet Propulsion Laboratories at Arnold AFB, TN.
Countless hours of research went into the design to ensure minimal flatspots throughout the rpm range.
Reply
Old Feb 16, 2007 | 10:17 AM
  #5  
Garth S's Avatar
Garth S
Rennlist Member
20 Year Member
 
Joined: Oct 2003
Posts: 7,210
Likes: 17
From: Nova Scotia
Default

Originally Posted by Leland Pate
The LPMM's were produced as a joint project with NASA and the USAF's Jet Propulsion Laboratories at Arnold AFB, TN.
Countless hours of research went into the design to ensure minimal flatspots throughout the rpm range.
There are, however, reported pathological side effects experienced by users with clinical evidence of addictive tendencies , demonstrated by experiencing what is know in the drug trade as "highs".
Users and bystanders alike have been witnessed to chant in unison ... " that's sounds absolutely freakin' great!"
Caution is recommended ...
Reply
Old Feb 16, 2007 | 11:37 AM
  #6  
MarkD's Avatar
MarkD
Rennlist Member
15 Year Member
 
Joined: Sep 2005
Posts: 6,962
Likes: 4
From: Still here...
Default

Reply
Old Feb 16, 2007 | 11:50 PM
  #7  
allill's Avatar
allill
Drifting
20 Year Member
 
Joined: Jul 2004
Posts: 2,270
Likes: 1
From: CALIFORNIA
Default



the 1.8 gigawatts needed to power the flux capacitor is generated by plutonium and when one cannot find this energy source, a bolt of lightning harnessed from the clock tower directed into the delorean exactly when the vehicle is travelling 88 mph will suffice.


Reply
Old Feb 17, 2007 | 12:02 AM
  #8  
Svaha's Avatar
Svaha
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 527
Likes: 1
From: Riverside, CA
Default In all seriousness

I asked Steve Weiner about the LPMM's, he suggested there might be a negative effect on power . Everybody comfortable with the results of this experiment?
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

9 Vehicles Porsche Helped Engineer that Aren't Porsches

 Verdad Gallardo
story-1

9 Features and Characteristics That Only Porsche People Understand

 Verdad Gallardo
story-2

I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

 Joe Kucinski
story-3

10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

 Verdad Gallardo
story-4

Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

 Joe Kucinski
story-5

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-6

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-7

Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

 Verdad Gallardo
story-8

10 Porsche Colors That Have More Personality Than Most People

 Verdad Gallardo
story-9

Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

 Verdad Gallardo
Old Feb 17, 2007 | 12:05 AM
  #9  
allill's Avatar
allill
Drifting
20 Year Member
 
Joined: Jul 2004
Posts: 2,270
Likes: 1
From: CALIFORNIA
Default

svaha,

i was just joining in the fun. no offense my man.
Reply
Old Feb 17, 2007 | 12:14 AM
  #10  
Svaha's Avatar
Svaha
Thread Starter
Pro
 
Joined: Feb 2006
Posts: 527
Likes: 1
From: Riverside, CA
Default

Just trying to receive some straight feedback, along with the wisecracks. I've been known to poke a bit of fun myself, so I'll accept it in stride, especially considering the affinity I've got for all of you wisecrackers!
Reply




All times are GMT -3. The time now is 11:23 AM.

story-0
9 Vehicles Porsche Helped Engineer that Aren't Porsches

Slideshow: Long before engineering consulting became trendy, Porsche was quietly helping other automakers build everything from supercars to economy hatchbacks.

By Verdad Gallardo | 2026-05-15 12:44:44


VIEW MORE
story-1
9 Features and Characteristics That Only Porsche People Understand

Slideshow: Some brands build cars. Porsche builds traditions, obsessions, and a few habits that stopped making sense decades ago but somehow became part of the charm.

By Verdad Gallardo | 2026-05-13 18:46:13


VIEW MORE
story-2
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

Slideshow: Six years and 500 Rennlist articles later, these are the biggest changes at Porsche.

By Joe Kucinski | 2026-05-11 09:52:55


VIEW MORE
story-3
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

Slideshow: Some Porsches exist for very specific reasons-others feel like they were built just to see if anyone would notice.

By Verdad Gallardo | 2026-05-06 18:00:32


VIEW MORE
story-4
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

Slideshow: Choosing between the 911 GT3 S/C and 718 Spyder RS in 10 key categories to determine one surprising winner.

By Joe Kucinski | 2026-05-05 12:51:46


VIEW MORE
story-5
This Builder Is Turning Heads With Its Slantnose 911 Creation

Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.

By Verdad Gallardo | 2026-05-01 10:49:43


VIEW MORE
story-6
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-7
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-8
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE
story-9
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

Slideshow: The last of the Speedsters doesn't just close a chapter, it makes quite the bold, air-cooled statement.

By Verdad Gallardo | 2026-04-22 17:55:04


VIEW MORE