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Fast as a '44 for under $800
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AppleBit  



Joined: 16 Nov 2002
Posts: 1516
Location: Minneapolis, MN

PostPosted: Tue Jan 27, 2004 4:19 pm    Post subject: Fast as a '44 for under $800 Reply with quote

For those who say you can't get a lot of horse out of the 924, they have not actually tried to do it. I've found practical and inexpensive ways to do it.

Here is the breakdown of my friends 924 and some of the easy mods we have done:

924 car: $400
All Parts from parts car: $500
Gaskets: $100

$1000 = Running very nice car... heck of a deal

0-60 mph = 10.0 seconds

Modified Fuel system: $200
Aluminum Flywheel: $200 - eBay baby!
5 Speed: $250 - Better Gearing
Vacuum Mods: FREE
Ignition Distributor Switch to early model: FREE
Underdrive Pully: FREE
Header: $124 - eBay again!
Deleted AC System: FREE
Remove Back Upper Seat: FREE
Other Misc Weight Removal: FREE

Under $800 in mods. Total spend on car: $1800

0-60 mph = 7.7 to 8.2 seconds

We havent even put a cam in the car yet or P&P'd the head or done any internal work to the sucker yet. Thing still can get some free weight reduction done to it. Interesting thing is everything minus the header modification can be done to the turbo'ed model as well.
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Classic British Sports Car Restoration v6 + v8 Engine Conversion Swaps

Porsche 924 Wide Body LS1 Corvette 500 Horsepower Engine
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Eturbo924  



Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH

PostPosted: Tue Jan 27, 2004 11:05 pm    Post subject: Reply with quote

What is the "fuel system" modification?

Thanks

Eric
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1982 924
1992 968
2003 C4S
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AppleBit  



Joined: 16 Nov 2002
Posts: 1516
Location: Minneapolis, MN

PostPosted: Wed Jan 28, 2004 12:28 am    Post subject: Reply with quote

Hey Eric, long time no chat...

Fuel System Modifications include:

Audi 5000 Throttle Body
Audi 5000 S Fuel Pressure Regulator
EGR Bypass
Vacuum Modifications with Fuel System

All this stuff is on my website. I am surprised at how poorly managed systems will loose power. Modifying the system makes it more reliable and also gains power while not loosing any economy.
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Porsche 924 Wide Body LS1 Corvette 500 Horsepower Engine
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Eturbo924  



Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH

PostPosted: Wed Jan 28, 2004 1:11 am    Post subject: Reply with quote

Long time! Yeah I remember when we both could not figure out why our engines were not making power. Ah the memories.


Oh yeah that is the WUR fromt the audi 5000 correct? I was going to do that... forgot about it. Hmmm

I need to swap off the VW throttle body and go with a 5000 unit. I think the VW unit is not giving the proper vacuum to the dist to get the advance moving at the right time. I need to check it again... just a suspect at the moment.

The other stuff is the elimination of the EGR system basically correct?

Thanks Jo
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1982 924
1992 968
2003 C4S
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Drive Fast!
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Eturbo924  



Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH

PostPosted: Wed Jan 28, 2004 1:12 am    Post subject: Reply with quote

Sorry forgot the n
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samivaan  



Joined: 24 Sep 2003
Posts: 35

PostPosted: Wed Jan 28, 2004 3:20 am    Post subject: Reply with quote

Thanks from the topic, it's very interesting. Please everyone, who has done something like that for your porsche 924, please wrote your experience in here.
Applepit: have you considered to change that camshaft?
http://www.integralcams.com/924.htm
I just got some catcams porsche 924 specs, I've been considered to get cam which is allmost equal cam with that integralcams stage2 cam.

Stage 3 can be a good choise too, at least if stock valve springs can handle that big lift?
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OR_Sunset  



Joined: 04 Jan 2003
Posts: 312
Location: Veneta, OR

PostPosted: Wed Jan 28, 2004 8:01 am    Post subject: Reply with quote

Yeah... the Integral Stage II is on my list, also. That looks like a really sweet profile.

Check out Elgin Cams, too... they seem to have a really well thought-out approach to cam profiles.
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82 924 N/A -
9.3:1 CR Pistons, Dual Webers, Stage 2 Cam.
4-1 Headers, DynoMax exhaust, Monza tips.
MSD 6AL Ignition, 944racing short shift kit.
Through hood cold air intake with scoop, K&N.
Silver/Blue.
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AppleBit  



Joined: 16 Nov 2002
Posts: 1516
Location: Minneapolis, MN

PostPosted: Wed Jan 28, 2004 12:02 pm    Post subject: Reply with quote

samivaan wrote:
Thanks from the topic, it's very interesting. Please everyone, who has done something like that for your porsche 924, please wrote your experience in here.
Applepit: have you considered to change that camshaft?
http://www.integralcams.com/924.htm
I just got some catcams porsche 924 specs, I've been considered to get cam which is allmost equal cam with that integralcams stage2 cam.

Stage 3 can be a good choise too, at least if stock valve springs can handle that big lift?


Check out my website and click on my Mods to date

My friend Brandon's car has been upgraded. My car has a ton of mods to it.
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AppleBit  



Joined: 16 Nov 2002
Posts: 1516
Location: Minneapolis, MN

PostPosted: Wed Jan 28, 2004 12:53 pm    Post subject: Reply with quote

Mods done to my car:

Electromotive DIS
Port & Polished head
Web Cam Stage 1 Camshaft
Franco Auto-Cam Gear
Fidanza Aluminum Flywheel
Lightweight Underdrive Crank Pully
10.0:1 Forged Pistons
5 speed 944 LSD Transmission
Short Shift Modification
MSDS Header
Free Flow Exhaust w/muffler
Weber Carbs
944 Brake Upgrade
15" Cookie Cutter Rims (Auto-x)
205/50/15" Tires (Auto-x)
16" 968 Rims (Street)
215/40/16" Goodyear Eagle F1 GS-D3 Tires (Street)
Lowered Car in Rear
Coil-Over Suspension in Front
Bilstein Shocks
Weltmeister Rear Tubular Torsion Bars
Wheel Spacers in Rear
Front Coil-Over Suspension w/250 ft-lb springs
Bilstein Shocks
944 5-bolt Disc Brakes
Rear Euro Bumper
Aero Mirrors
944 Style Front Spoiler
Lexan Rear Hatch
Fiberglass Hood

Estimated 0-60: low 5 seconds with 1/4 mile time of mid 13 second pass

Cost? Priceless...
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Joes924Racer  



Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!

PostPosted: Wed Jan 28, 2004 1:12 pm    Post subject: Reply with quote

Do you drive it on the street though. ? /Jon
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1980 porsche Turbo 931GT Replica
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AppleBit  



Joined: 16 Nov 2002
Posts: 1516
Location: Minneapolis, MN

PostPosted: Wed Jan 28, 2004 1:30 pm    Post subject: Reply with quote

All the time. Has low end torque- I can start the car in 3rd gear (and I have a lot without realizing it) without any trouble.

Start out at 40 mph in 5th gear and pass cars like they were standing still.

No trouble driving in heavy traffic- even with the new aluminum flywheel.


My Saturn ran a 14.8 in the 1/4 mile with $1500 worth of mods. for another $1000 I can add a turbo and get the thing down into the mid 13 second range. The stock 924 runs high 17 seconds in the quarter... Not impressive. Now with the $800 we spent on my friends 924 his car should run the quarter in 15.7. Pretty good increase for $800. Respectable enough to hold against a 1989 Porsche 944. We're gonna do more to his car, but this year it's just a WTB: 944 brakes for the new 968 wheels going on the car... dang that makes the '24's look sexy...
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924 turbo  



Joined: 02 Nov 2002
Posts: 1566
Location: Simi Valley, CA, USA

PostPosted: Wed Jan 28, 2004 3:25 pm    Post subject: Reply with quote

AppleBit wrote:
Estimated 0-60: low 5 seconds with 1/4 mile time of mid 13 second pass



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Jon Furst
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Mikri184  



Joined: 12 Sep 2003
Posts: 746
Location: Ferndale, WA

PostPosted: Wed Jan 28, 2004 4:28 pm    Post subject: good mods Reply with quote

Car sounds alot like theparts I am putting together, I have high hopes now, Thanks
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Eturbo924  



Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH

PostPosted: Wed Jan 28, 2004 11:20 pm    Post subject: Reply with quote

Here is the link to what I have done to my car.
http://www.geocities.com/eturbo924/myprojects.html

Not as fast as Applebit but much quicker than stock.
All in all about 1K spent. I would report it is about as fast as a stock 931.

Like I reported some where else.. I had an impromtu race with a 931 back in the fall on 495. Ran from about 60 to 100 and I was right on him... with a bit in reserve. So no doubt I am making good power.

I hope to put in 9.3:1 pistons some time soon. Just do not want to do it myself. After changing out the entire drive train in my 1980... I am tired of projects! Need a break.

Oh and plan to try out the Audi WUR/fuel regulator some time soon.

Here is the page I made on others projects that have been reported on in mags. http://www.geocities.com/eturbo924/Enhancements.html

Eric
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1982 924
1992 968
2003 C4S
Parts Parts Parts and More parts.
E-mail me for parts you need!
Drive Fast!
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cleethorpes  



Joined: 26 Jan 2004
Posts: 186
Location: cleethorpes (oddly enough!)

PostPosted: Thu Jan 29, 2004 3:52 am    Post subject: Reply with quote

Interested in the throttle body mod (audi 5000).

What specific model is it from and does anyone know what the equivalent european model was called?

Also, does the bursch header save much weight?

I plan to run a polished and ported 9.3:1 with 270-280 cam, the best possible mass produced free flow exhaust(with the biggest weight saving)
Then I aim to fit an eaton supercharger(need to look into the implications further), intercooler, fit discs to the rear, lower by 2-3cm etc .
Somewhat like someone else on this sight who's name escapes me!

Don't at this stage have a clue how much the blower will cost, and the fitment details

Also contemplating carrera gt body conversion.
(well it should be pumping out circa 200bhp, so I may as well make it look a bit, well a lot harder!).

Conversion will boil down to the weight, as by looks of it some of the panels fit over the old!

Lightweight sports seats, replace the split dash with a repro fiberglass one.

Anything I've missed???
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