Notices
993 Forum 1995-1998

GT3 Engine in a 993?

Thread Tools
 
Search this Thread
 
Old Mar 22, 2011 | 10:58 AM
  #1  
Fly911's Avatar
Fly911
Thread Starter
Racer
 
Joined: Oct 2006
Posts: 335
Likes: 14
From: Houston, Tx
Default GT3 Engine in a 993?

Guys!

There is a 996 GT3 engine with 10k miles for sale on eBay for $10k!

The GT3 block/case is identical to the 993, and fits right on the gear box, and the 993 rear engine carrier fits right on the back of the engine. Have any of you done this before? The job should be fairly straight forward, with front radiators, plumbing of coolant and power steering (I have no AC or heat in my 993), and a Motec M600 ECU.

Is it as straight forward as I think, or am I missing out on something here? With a GT3 engine, a good exhaust and air intake and the Motec, you can have a 993 with way over 400Hp on a normally aspirated 3.6L, and with a 8,400rpm redline!

Would that be fun or what?
Reply
Old Mar 22, 2011 | 11:37 AM
  #2  
trophy's Avatar
trophy
Race Car
20 Year Member
 
Joined: Nov 2005
Posts: 3,915
Likes: 14
From: Calgary...Under my car... :)
Default

There are a few guys that have put GT3 engines into earlier cars as race cars, not 993's.

The biggest challenge would be the plumbing for the cooling, I believe the power steering wouldn't be much of an issue...

I have thought about this myself a few times, I would also use the transmission and shifter cables from the GT3 as well.....

Keep us posted..
Reply
Old Mar 22, 2011 | 12:24 PM
  #3  
Bill Verburg's Avatar
Bill Verburg
Addict
Rennlist Member

20 Year Member
 
Joined: May 2001
Posts: 12,824
Likes: 786
Default

Originally Posted by trophy
There are a few guys that have put GT3 engines into earlier cars as race cars, not 993's.

The biggest challenge would be the plumbing for the cooling, I believe the power steering wouldn't be much of an issue...

I have thought about this myself a few times, I would also use the transmission and shifter cables from the GT3 as well.....

Keep us posted..
p/s is no issue at all, just install the electric Cup setup.
Reply
Old Mar 22, 2011 | 01:18 PM
  #4  
race911's Avatar
race911
Rennlist Member
20 Year Member
 
Joined: Feb 2004
Posts: 12,312
Likes: 10
From: Roseville, CA
Default

And all the RS America guys will shout "who needs power steering"? (Yes, I love mine in the yellow car. Racing the RSA was tiring unless I was running Hoosiers.)

Non-Porsche, and blasphemy, but with what a light V-8 crate engine runs these days...................
Reply
Old Mar 22, 2011 | 01:23 PM
  #5  
Quadcammer's Avatar
Quadcammer
Race Director
15 Year Member
 
Joined: Nov 2006
Posts: 15,860
Likes: 1,629
From: Clifton, NJ
Default

Originally Posted by race911
And all the RS America guys will shout "who needs power steering"? (Yes, I love mine in the yellow car. Racing the RSA was tiring unless I was running Hoosiers.)

Non-Porsche, and blasphemy, but with what a light V-8 crate engine runs these days...................
You could have a very reliable 450bhp LS1 V8 for about $3.5k
Reply
Old Mar 22, 2011 | 01:33 PM
  #6  
race911's Avatar
race911
Rennlist Member
20 Year Member
 
Joined: Feb 2004
Posts: 12,312
Likes: 10
From: Roseville, CA
Default

Which is only a fraction of what the project would end up costing.

One of our front-line Spec Miata guys out here (who got his start with a 911) has built an LS1 Miata for NASA GTS. Even as proven and straightforward as that should be, he's got a huge amount into the car now to actually make it work.

Here's him lapping me in the Spec Miata at a race last year (damned those 45 second split starts that put us a half a lap behind before we know it):

http://www.youtube.com/watch?v=q3JApCue02k
Reply
Old Mar 22, 2011 | 01:41 PM
  #7  
KMASS993's Avatar
KMASS993
Rennlist Member
 
Joined: Dec 2007
Posts: 1,334
Likes: 8
Default

Funny thing is I was just looking at that listing last night thinking the exact same thing!
Reply
Old Mar 22, 2011 | 03:04 PM
  #8  
cabrio993's Avatar
cabrio993
Race Car
 
Joined: Feb 2005
Posts: 4,681
Likes: 11
From: Johns Creek, GA
Default

Wouldn't be an issue...but wouldn't make that the 993 water cooled?
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 Mar 22, 2011 | 03:54 PM
  #9  
race911's Avatar
race911
Rennlist Member
20 Year Member
 
Joined: Feb 2004
Posts: 12,312
Likes: 10
From: Roseville, CA
Default

Originally Posted by cabrio993
Wouldn't be an issue...but wouldn't make that the 993 water cooled?
What's wrong with that? They're primarily liquid cooled anyway........what's the oil also doing, when you think about it?

I get that we can be all nostalgic on our series of cars versus what came after. But isn't that mostly about the M96 boat anchor? What if every 996 came with a detuned GT3 engine, say about 320HP. I think many here would hold their nose on the interior/exterior styling and appreciate time moved on. Kinda like having a discussion over a '73 and a '74, especially a '73RS and a '74-5 ROW Carrera.
Reply
Old Mar 22, 2011 | 03:59 PM
  #10  
cabrio993's Avatar
cabrio993
Race Car
 
Joined: Feb 2005
Posts: 4,681
Likes: 11
From: Johns Creek, GA
Default

Originally Posted by race911
What's wrong with that? They're primarily liquid cooled anyway........what's the oil also doing, when you think about it?
.
Nothing wrong with that. If I wanted a water cooled Porsche, I would get a 996 or 997 and be done with it.

Putting a water cooled engine in the 993 misses the whole point for me. That's all.
Reply
Old Mar 22, 2011 | 05:37 PM
  #11  
Falcondrivr's Avatar
Falcondrivr
Race Car
15 Year Member
 
Joined: Apr 2007
Posts: 3,932
Likes: 72
From: Tampa, FL
Default

I've got a buddy who's in the middle of putting a 2010 3.8 997 engine in a 2001 BoxterS...He's had to do quite a bit of custom work, and change the wiring harness. But in another month or so, it should be pretty fun to drive. BTW, the 3.8 was 22 pounds lighter than the stock BoxterS engine...
Reply
Old Mar 22, 2011 | 06:20 PM
  #12  
MAZ 993's Avatar
MAZ 993
Track Day
 
Joined: Jan 2009
Posts: 17
Likes: 0
Smile 993 JUST ADD WATER

Check out Kelly Moss Racing in Wi they have done it
Reply
Old Mar 22, 2011 | 07:02 PM
  #13  
geolab's Avatar
geolab
Drifting
15 Year Member
 
Joined: May 2006
Posts: 3,074
Likes: 205
From: Paris
Default

Waiting for pdk price drop ....
Reply
Old Mar 23, 2011 | 12:43 AM
  #14  
JPS's Avatar
JPS
Addict
Rennlist Member

20 Year Member
 
Joined: May 2002
Posts: 4,708
Likes: 25
From: Manhattan
Default

One of our front-line Spec Miata guys out here
Tell Dean & Laura hi...they were the "dealers" who got me hooked on track. "First one is free" he said as we got out of his car after the first session.

Damned expensive friends
Reply
Old Mar 23, 2011 | 01:08 AM
  #15  
timothymoffat's Avatar
timothymoffat
Rennlist Member
20 Year Member
 
Joined: Apr 2006
Posts: 7,858
Likes: 1,410
From: Rainforest (Vancouver, BC)
Default

Originally Posted by race911
I get that we can be all nostalgic on our series of cars versus what came after. But isn't that mostly about the M96 boat anchor? What if every 996 came with a detuned GT3 engine, say about 320HP. I think many here would hold their nose on the interior/exterior styling and appreciate time moved on.
The M96 motor is the problem, not the water cooling, IMHO. If it had been less prone to "catastrohic failure" I'd probably still have my 02 (320HP 3.6). I originally bought the car because it had a new/reman Porsche motor installed a few thousand miles before I bought it @ 27K miles. To me it's knowing that the basic engine is strong. Unfortunately a new motor doesn't fix the fundamental design problem; "new" motors go pop too. I can live with a little oil consumption caused by less than ideal valve guides (air-cooled) but the M96 in all it's versions will forever have a negative stigma attached to it and any car it powers. Reliability goes a long way in making a car attractive to me.

It really would have been nice if all 996/997s were powered by some derivitave of the GT1 block/GT3 engine. To me at least, the knowledge that the basic design and architecture of the engine was the same in any given series of the air-cooled generation was what made the 911 so attractive. The day the new DFI motor is the basis for ALL new 911 motors, GT models and racecars included, is the day this magic returns IMHO.
Reply



All times are GMT -3. The time now is 12:31 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