Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

LS-1 Porsche 944 Racecar - Fired up and running

Thread Tools
 
Search this Thread
 
Old 02-28-2005, 11:42 PM
  #1  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default LS-1 Porsche 944 Racecar - Fired up and running (w/ pics)

Well, we had our inaugural weekend at the Las Vegas Motorspeedway a week and a half ago, and it was simply awesome to drive. I've fallen in love with the ls-1 with it's light weight combined with sweet power...not to mention that the sound rings sweetly in my head hours after getting out of the car.

Check out this link for more info on the project:

http://www.renegadehybrids.com/LS-1/...ersionkit.html

My buddy is doing the editting on some video we took, which should be up on the site in a few more days.

Ultimately we want to combine the proven power and reliability of the Chevy ls-1 with the proven handling and performance of the Porsche 944 into a highly competetive Enduro Racecar. The Testimonial on the site gives my first impressions.

Thanks Renegade Hybrids for building me such and awesome car!!

Steve

ps - more pics at a later post in this thread...

Last edited by Steve Rea; 03-02-2005 at 03:17 PM. Reason: it got stopped early
Old 03-01-2005, 09:33 AM
  #2  
TECH Apprentice
iTrader: (7)
 
RX-Ben's Avatar
 
Join Date: Jun 2004
Location: Brooklyn
Posts: 372
Likes: 0
Received 0 Likes on 0 Posts

Default

Great to see that the 944 swap is up and running. It looks like you are using the stock Porsche 5 speed? Why wasn't the T56 used?
Old 03-01-2005, 10:12 AM
  #3  
TECH Senior Member
iTrader: (7)
 
Project GatTagO's Avatar
 
Join Date: Mar 2003
Location: The City of Fountains
Posts: 10,215
Received 1,493 Likes on 932 Posts
LS1Tech 20 Year Member
Default

The 924, 944 and 968 use a rear mounted transaxle, so there is no room in the tunnel for a T56.

It will be interesting to see how the transaxles hold up to the extra power.

Andrew
Old 03-01-2005, 10:23 AM
  #4  
TECH Regular
 
owen v8litew8's Avatar
 
Join Date: Jul 2004
Posts: 419
Likes: 0
Received 0 Likes on 0 Posts
Default

awesome awesome stuff there, good work on the setup, I bet it hauls some serious ***.
more pics please!
Old 03-01-2005, 11:27 AM
  #5  
TECH Apprentice
iTrader: (7)
 
RX-Ben's Avatar
 
Join Date: Jun 2004
Location: Brooklyn
Posts: 372
Likes: 0
Received 0 Likes on 0 Posts

Default

Mmm...transaxle...I wish my RX7 had one to improve the already good weight distribution.
I guess you could swap in a C5 Corvette transaxle to the 944 if it isn't holding up, but for a road racer only I bet the stock setup does fine.

Ben
Old 03-01-2005, 01:25 PM
  #6  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by RX-Ben
Mmm...transaxle...I wish my RX7 had one to improve the already good weight distribution.
I guess you could swap in a C5 Corvette transaxle to the 944 if it isn't holding up, but for a road racer only I bet the stock setup does fine.

Ben
Yep, we're using the stock 944 turbo transaxle, which has actually been known to support from 300 - 450 rwhp in road race conditions. Apparently, the CV joints are the weak link and need to be checked/replaced periodically. However, that was all with turbo power and the torque from the ls-1 is another animal.

The weight balance is awesome with the light weight ls-1 and originally sweet 944 balance. With a half tank of gas (10gallons/70lbs) the car weighed in at 2563, which would bring its current dry weight (no gas) to about 2493.

With the half tank of gas, and me out of the car the balance is:

front: 49.5%
rear: 50.5%

You can't ask for much better than that on a road racer. Once we go for all lexan windows, fiberglass body panels and other weight savers, plus add the rest of the cage, our weight should be down to about 2350lbs. The power to weight ratio makes this thing a real blast to drive.

Once we get the race suspension on there, and dial in the chassis, we'll run the **** out of the car and see just what breaks...strengthen that weak area, then look into adding power. The power will likely come in a built ls2 or maybe we'll be patient for an ls7...we'll see.

Steve
Old 03-01-2005, 02:20 PM
  #7  
TECH Fanatic
iTrader: (5)
 
93Polo's Avatar
 
Join Date: Nov 2002
Location: Kennesaw, GA
Posts: 1,039
Received 12 Likes on 11 Posts
LS1Tech 20 Year Member
Default

What do you think a full weight street car will roll in at?
Old 03-01-2005, 02:31 PM
  #8  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93Polo
What do you think a full weight street car will roll in at?
Renegade is putting together the first one, which will be for my buddy and I believe it is expected to be in the 2800 range ( +/- 100lbs ). Not bad with full A/C, heater, stereo and all the cushy luxuries for daily driving. Maybe Scott or Mike from Renegade will chime in with a more accurate figure for you.

s
Old 03-01-2005, 06:45 PM
  #9  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

hmm, I may have been wrong...it may be more like 2900-3000lbs with all the bells and whistles...
Old 03-02-2005, 03:02 PM
  #10  
TECH Regular
 
owen v8litew8's Avatar
 
Join Date: Jul 2004
Posts: 419
Likes: 0
Received 0 Likes on 0 Posts
Default

that sounds about right, its right on par with a 1989-1991 rx7 of the same era and similar design.


wow, in race trim that 944 is light! and what awesome balance front to rear... good work, its nice to see something like that using an LS1.
Old 03-02-2005, 03:11 PM
  #11  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default LS1 Porsche 944 Racecar - fired up and running (w/ pics)

Attached are some cool before and after pics, a top shot, plus a bottom shot showing the custom oil pan to allow for the fit with a stock hood.

s
Attached Thumbnails LS-1 Porsche 944 Racecar - Fired up and running-front-burned-up-72.jpg   LS-1 Porsche 944 Racecar - Fired up and running-intake-first-72dpi.jpg   LS-1 Porsche 944 Racecar - Fired up and running-header-clearance-top-72.jpg   LS-1 Porsche 944 Racecar - Fired up and running-custom-oil-pan-72.jpg  
Old 03-02-2005, 03:15 PM
  #12  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Those 3rd gen rx-7 ls1's look mighty sweet to me. It seems like a great match, as I seem to have heard they had a lot of reliability problems, which the ls-1 could solve. I always liked their lines.

s
Old 03-02-2005, 07:05 PM
  #13  
TECH Apprentice
iTrader: (7)
 
RX-Ben's Avatar
 
Join Date: Jun 2004
Location: Brooklyn
Posts: 372
Likes: 0
Received 0 Likes on 0 Posts

Default

Wow, that is a tight fit. It is great that it worked out.

Less than 2400 pounds is pretty impressive.

Are parts for 944s expensive or cheaper than what we be expected because 944s are front engined and many were made?

thanks
Ben
Old 03-02-2005, 07:49 PM
  #14  
Teching In
 
bigkat_83's Avatar
 
Join Date: Feb 2004
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts

Default

Heres another 944 LS1 that has been up and running for over a year or so. It was done by a shop in FL. There are also a couple of 944/968 Porsches that have been done from TX
Attached Thumbnails LS-1 Porsche 944 Racecar - Fired up and running-pa020005.jpg  
Old 03-02-2005, 08:25 PM
  #15  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by RX-Ben
Are parts for 944s expensive or cheaper than what we be expected because 944s are front engined and many were made?

thanks
Ben
Well Ben, the donor car with the engine fire cost me $1800, which is pretty darn good. The NA 944's can be picked up as a donor car for as little as $500-$1000, with the turbos running more than that. A turbo tranny used would cost in the neighborhood of $600-$9000 and I'm told that it can handle up to about 450hp. Some tiny parts, if you need to buy them new, will cost a ridiculous amount, being a "Porsche", but essentially you're right, that with so many produced, used parts are pretty reasonable.

The incredibly low cost of a donor car with the idea that the turbo tranny could handle the stock ls1 power were certianly some of my driving factors (no pun intended :-) ) in doing this.

We will just have to see what needs to be done later on when we go for a built LS2 or LS7 in there!

s

Last edited by Steve Rea; 03-03-2005 at 10:32 AM.
Old 03-02-2005, 08:28 PM
  #16  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

BigKat -

yes I also heard that there's a wide-body LS1 944 racecar in Florida, with I believe, a mild cam and heads, full race suspension and wide rubber, that was within 2 seconds a lap, of a factory 911 RS racecar with a pro driver. I figure that the Porsche Factory 911 RSR racecars are our rabbit to catch on the track. We'll see...

Steve
Old 03-02-2005, 09:09 PM
  #17  
Launching!
 
jeromio's Avatar
 
Join Date: Dec 2001
Location: Durham, NC
Posts: 259
Likes: 0
Received 1 Like on 1 Post

Default

Curious about that oilpan - steel, alum? Heavy guage?

That radiator mounted down low like that looks freaky. Is that how it looks stock, or was that done purely to allow for the air intake on the LS1?

Nice car. Very cool that there is a kit. Only downside I can see of developments like this: demand and therefore price for LS1 donor motors is gonna go up....(I have the sickness where I envision each and every car I see with an LS1 transplanted into it )
Old 03-02-2005, 09:14 PM
  #18  
Teching In
 
bigkat_83's Avatar
 
Join Date: Feb 2004
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts

Default

Don't the Egan brothers from Birmingham/Atlanta have some 944 LS1 cars in the works. I know that the 944 LT1 cars they had were top notch and suspect that if they do a LSxx car that it will be the same.

I'm just finishing my Porsche LS1 mid engine 914 now and hope to have it going in a month or so.
Old 03-02-2005, 10:22 PM
  #19  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jeromio
Curious about that oilpan - steel, alum? Heavy guage?

That radiator mounted down low like that looks freaky. Is that how it looks stock, or was that done purely to allow for the air intake on the LS1?

Nice car. Very cool that there is a kit. Only downside I can see of developments like this: demand and therefore price for LS1 donor motors is gonna go up....(I have the sickness where I envision each and every car I see with an LS1 transplanted into it )
haha, yep once you taste the ls1 qualities, it seems like the golden motor... 'cept when you can get a crate ls2 putting out 400hp in stock form, for $5600, that looks pretty darn good to me. That could just be the sweet spot for a street 944 ls1, without having to do the tranny work that might be necessary to go for the 500+hp.

As far as I know, the radiator is in its stock location, but it looks a bit strange because the nose of the car is off.

I don't know about the oilpan construction, but I do know that they had it custom made with internal baffles to help prevent oil starvation in hard cornering. I'll see if I can find out more from Renegade.
Old 03-02-2005, 10:26 PM
  #20  
Staging Lane
Thread Starter
iTrader: (1)
 
Steve Rea's Avatar
 
Join Date: Feb 2005
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by bigkat_83
Don't the Egan brothers from Birmingham/Atlanta have some 944 LS1 cars in the works. I know that the 944 LT1 cars they had were top notch and suspect that if they do a LSxx car that it will be the same.

I'm just finishing my Porsche LS1 mid engine 914 now and hope to have it going in a month or so.
Yep, Tom Egan has the Renegade 968 LS1 in his, and it looks like Tom did an excellent job on the install. I have spoken with him and he seems to know his stuff, plus he drives his car on the street and race track, which is cool.

I must say that I'll be a bit jealous of the final weight of your ls1 914, as it'll be a good bit less than mine. What do you expect it to weigh in at?

s


Quick Reply: LS-1 Porsche 944 Racecar - Fired up and running



All times are GMT -5. The time now is 07:11 AM.