Notices
911 Forum 1964-1989
Sponsored by:
Sponsored by: Intercity Lines, LLC

Best HP increase recommendation

Thread Tools
 
Search this Thread
 
Old Sep 28, 2010 | 04:46 PM
  #1  
talane's Avatar
talane
Thread Starter
Instructor
 
Joined: May 2009
Posts: 124
Likes: 0
From: By the Bay, Maryland
Default Best HP increase recommendation

I have a stock 88 Targa and I am looking to get a bit more HP out of it. She runs good now but I know it could be better. I dont want to bastadize it just make it go faster. What recommendations do you have for me to start with.
Reply
Old Sep 28, 2010 | 04:49 PM
  #2  
rusnak's Avatar
rusnak
I haddah Google dat
Rennlist Member
 
Joined: Nov 2008
Posts: 11,501
Likes: 5
From: Fresno, CA
Default

what kind of driving do you do? For example, is this mostly touring, DE, or DE with some street, etc. Will you be buying high test race gas, or just premium?
Reply
Old Sep 28, 2010 | 04:55 PM
  #3  
Auto_Werks 3.6's Avatar
Auto_Werks 3.6
Quit Smokin'
Rennlist Member
20 Year Member
 
Joined: Dec 2003
Posts: 3,113
Likes: 493
From: Columbus, Ohio
Default

Seems to me that you'll be limited to exhaust and chip changes without bastardizing it. I'd do RalelyL8 (or comparable) headers with a sport muffler, and a Steve Wong (or comparable) chip. Beyond that you get into a financial grey area, as modifications are expensive and expensive to reverse, and cars are cheap. There have been several 3.6 converted cars floating around for sub $20k and for not much more than that you could step into a 930. It's hard for me to justify spending $10k+ to modify your carrera when alternatives are redily available.

My car is a perfect example of (maybe) doing too much on the carrera platform. I wouldn't trade it for a stock 930, but thats partially because I've become jaded with turbo lag. I also have to mix race fuel to operate... that's beyond the tolerance of most street drivers. The one plus is that I don't drive on the road much in Kansas, because it's just too boring!
Reply
Old Sep 28, 2010 | 05:00 PM
  #4  
Auto_Werks 3.6's Avatar
Auto_Werks 3.6
Quit Smokin'
Rennlist Member
20 Year Member
 
Joined: Dec 2003
Posts: 3,113
Likes: 493
From: Columbus, Ohio
Default

Originally Posted by rusnak
what kind of driving do you do? For example, is this mostly touring, DE, or DE with some street, etc. Will you be buying high test race gas, or just premium?
In most applications this is the paramount question, but I still think the only financially responsible mods to the carrera are chips and exhaust..... Unless there is a sentimental or other intangible reason not to sell the car.
Reply
Old Sep 28, 2010 | 05:38 PM
  #5  
whalebird's Avatar
whalebird
Race Car
 
Joined: Nov 2004
Posts: 3,993
Likes: 3
From: Blue Ridge Mountains NC.
Default

Talane. There is really no pat answer to this question, like rusnak's question back to you indicates.
Also, I would say exhaust and chip as 3.6 pointed out.
I will add, that one of the best improvements in these car is in the chassis. A well sorted chassis tuned to spirited street driving will do wonders on the track if you decide to go there. A well planted car will feel(and is) faster when it can apply power to the ground through an efficient chassis. Also, when the time comes for more HP, your chassis can handle it. More motor on an aging stock suspension is a disaster in waiting. More chassis under a stock motor brings the best out of the entire 911 "formula"
After that, a nice stainless exhaust system and your targa will be an entirely different car.
Reply
Old Sep 28, 2010 | 05:41 PM
  #6  
whalebird's Avatar
whalebird
Race Car
 
Joined: Nov 2004
Posts: 3,993
Likes: 3
From: Blue Ridge Mountains NC.
Default

Oh, most "real" people will start with a plan - often dictated by budget. Remember that HP is measured in cubic dollars.
Reply
Old Sep 28, 2010 | 06:04 PM
  #7  
g-50cab's Avatar
g-50cab
Drifting
20 Year Member
 
Joined: Jul 2003
Posts: 2,408
Likes: 55
From: St Petersburg, FL
Default

Here you go - unfortunately the results are not linear
Attached Images
File Type: gif
exhaust-chart.gif (18.6 KB, 143 views)
Reply
Old Sep 28, 2010 | 07:41 PM
  #8  
Amber Gramps's Avatar
Amber Gramps
Addict
 
Joined: Jan 2007
Posts: 37,754
Likes: 15
From: Alta Loma Alone
Default

make sure the basics are all done. The Valve clearance, rotor/cap, plugs and wires, O2 sensor, injectors, and manifold vacuums leaks, come to mind. I had the cat bypass and open airbox but now with everything else in order I've put back the cat and the airbox. Now with the perfect chip and some octane she is still a demonfish to drive. I'd just look really close at all the stock equipment and chip it to the highest octane you can get your hands on. just bumping up the rev limiter will be more fun than you'll know what to do with.
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

2026 Porsche 911 Club Coupe is Spectacular, And Everything Wrong with the Porsche Market

 Joe Kucinski
story-1

Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

 Verdad Gallardo
story-2

9 Vehicles Porsche Helped Engineer that Aren't Porsches

 Verdad Gallardo
story-3

9 Features and Characteristics That Only Porsche People Understand

 Verdad Gallardo
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

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

 Joe Kucinski
story-7

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-8

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Sep 28, 2010 | 07:57 PM
  #9  
ivangene's Avatar
ivangene
Parts Specialist
Rennlist Member
 
Joined: Aug 2008
Posts: 16,326
Likes: 30
Default

are you driving the car flat out or just gotta have more cowbell?
Reply
Old Sep 28, 2010 | 11:05 PM
  #10  
Ed Hughes's Avatar
Ed Hughes
Rennlist Member
20 Year Member
 
Joined: Jul 2002
Posts: 16,557
Likes: 94
From: Bend, OR
Default

It's pretty much stated above.....but I'll throw in a couple of ideas. First of all, I'll assume you mean faster overall (turns, braking, acceleration).

1. DE time. Most cannot drive a stock 911 to its potential. We may feel we are, but there is always someone faster, and that requires track time.
2. You can lighten the car some without too much "bastardizing". Seats for instance: IIRC, my old stock sport seats were about 50lbs each. Recaro or similar shells are closer to 18lbs each.

Lastly, once you start down the path of improvements, even bolt-ons, you are venturing onto the famed slippery slope.
Reply
Old Sep 28, 2010 | 11:25 PM
  #11  
james brown's Avatar
james brown
Intermediate
 
Joined: Aug 2008
Posts: 36
Likes: 2
From: Bellingham, WA
Default

By 'go faster' do you mean quicker? or top speed? Hopefully you mean quicker (to chase those Subies!). Start by loosing several hundred pounds of fluff and trim. Keep it so you can put it back on when you sell it. Get the suspention in order, small upgrades make a big difference but none more that tires and alignment/corner balance. Brakes are great, no need for improvement. Engine just needs to breath and tweeked with a chip. That should keep you busy trying to figure out how to drive it on the edge for a few years.
Reply
Old Sep 29, 2010 | 12:35 AM
  #12  
ivangene's Avatar
ivangene
Parts Specialist
Rennlist Member
 
Joined: Aug 2008
Posts: 16,326
Likes: 30
Default

nice nice nice set up there James!!
Reply
Old Sep 29, 2010 | 12:59 AM
  #13  
JackOlsen's Avatar
JackOlsen
Race Car
 
Joined: Jun 2001
Posts: 3,929
Likes: 70
From: Los Angeles
Default

The sweet spot: Euro pre-muffler, sport muffler, Steve Wong chip.

Changing to headers is expensive and -- as Jeremy's graph points out -- not really a good bang-for-the-buck the expense, relative to the other options, unless you're going into the motor itself (cams).
Reply
Old Sep 29, 2010 | 02:34 AM
  #14  
james brown's Avatar
james brown
Intermediate
 
Joined: Aug 2008
Posts: 36
Likes: 2
From: Bellingham, WA
Default

Thanks Ed,......And then there is that fat black one to steal the show!!!
Reply
Old Sep 29, 2010 | 04:46 AM
  #15  
May911-85's Avatar
May911-85
Advanced
 
Joined: Mar 2010
Posts: 88
Likes: 0
From: Chicago, IL
Default

I don't know about steeling the show! I think g-50cab said it all with his chart. Now Talane can take it from there.
Reply



All times are GMT -3. The time now is 01:30 AM.

story-0
2026 Porsche 911 Club Coupe is Spectacular, And Everything Wrong with the Porsche Market

Slideshow: The 2026 Porsche 911 Club Coupe is being resold $150K above sticker and that is a real problem.

By Joe Kucinski | 2026-05-21 11:52:54


VIEW MORE
story-1
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

Slideshow: Talos Vehicles has transformed the Porsche 911 GT3 RS into a carbon-bodied, race-inspired machine that costs well over $1 million before the donor car is even included.

By Verdad Gallardo | 2026-05-19 13:39:04


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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