924Board.org

Guest · Posted: Sat Mar 04, 2000 1:09 pm Post subject:

From: William
Email:
Date: 04 Mar 2000
Time: 14:09:55

Alright, I just got whooped last night big time by
a 95 or 96 Plymoth Acclaim raced me and won, now I am pissed at my Porsche 924! So it's time to
do some serious mod's now!! Any other pissed off 924 owners want to help a fellow owner out? What are all the mods I can do to a stock engine? I think 924's lack acceleration, but they do good at high speeds around 130 or so.

Guest · Posted: Sat Mar 04, 2000 4:39 pm Post subject:

From: Rick
Email: rmaclaren@iprimus.ca
Date: 04 Mar 2000
Time: 17:39:21

Hi

You asked "What are all the mods I can do to a stock engine? I think 924's lack acceleration, but they do good at high speeds around 130 or so."

Check out the 924.org Registry. Most everyone has asked the same question at least once.

Modifying the engine? Got the bucks?

I've given up on street racing. If you rev high enough you can take an Acclaim. Just burn through your clutch and tranny, rev everything near redline, make the car smoke. I've gone through clutches though and burned up components doing so. Remember, the average Rally event costs a driver and team about $3000 CDN in parts. Racing burns components.

If you are desperate, here is my advice, for what it is worth...

1. Work backwards from the exhaust. Don't put a chromed tip on it...makes it look sleazy and desperately adolescent.

2. Don't cut the air cleaner box...I did it and regretted it a little, though I had another spare in perfect shape. The actual intake flow is fine with the stock box. Just do the Audi throttle trick.

3. Make it run well first, get it tuned properly with good shocks and brakes, then soup it up if you still want to do so. This method is far cheaper. I did it in the reverse, and, again, regretted it.

4. Get nice 16" wheels and improve your handling.

5. Now you are up to about $7000 CDN...shall I go on?

Best Advice?

Know your opponent. Race where YOU have the advantage, not on a turf that is enjoyed by your opponent. You will never have the advantage on a straight line in a 924. Instead, get on an 'S' shaped area, a "twistie" as Porsche fans call it, and walk all over them.

Learn to drive. I am still learning. I am old, have driven for 22 years, and I still find myself overcorrecting or failing to take into consideration tire flex (I have snows on presently)...but recently I outmanouvered, not exactly raced, a GTI in the twisties...so learn to drive. It has its benefits.

Rick

Guest · Posted: Sat Mar 04, 2000 4:39 pm Post subject:

From: Rick
Email: rmaclaren@iprimus.ca
Date: 04 Mar 2000
Time: 17:39:40

Hi

You asked "What are all the mods I can do to a stock engine? I think 924's lack acceleration, but they do good at high speeds around 130 or so."

Check out the 924.org Registry. Most everyone has asked the same question at least once.

Modifying the engine? Got the bucks?

I've given up on street racing. If you rev high enough you can take an Acclaim. Just burn through your clutch and tranny, rev everything near redline, make the car smoke. I've gone through clutches though and burned up components doing so. Remember, the average Rally event costs a driver and team about $3000 CDN in parts. Racing burns components.

If you are desperate, here is my advice, for what it is worth...

1. Work backwards from the exhaust. Don't put a chromed tip on it...makes it look sleazy and desperately adolescent.

2. Don't cut the air cleaner box...I did it and regretted it a little, though I had another spare in perfect shape. The actual intake flow is fine with the stock box. Just do the Audi throttle trick.

3. Make it run well first, get it tuned properly with good shocks and brakes, then soup it up if you still want to do so. This method is far cheaper. I did it in the reverse, and, again, regretted it.

4. Get nice 16" wheels and improve your handling.

5. Now you are up to about $7000 CDN...shall I go on?

Best Advice?

Know your opponent. Race where YOU have the advantage, not on a turf that is enjoyed by your opponent. You will never have the advantage on a straight line in a 924. Instead, get on an 'S' shaped area, a "twistie" as Porsche fans call it, and walk all over them.

Learn to drive. I am still learning. I am old, have driven for 22 years, and I still find myself overcorrecting or failing to take into consideration tire flex (I have snows on presently)...but recently I outmanouvered, not exactly raced, a GTI in the twisties...so learn to drive. It has its benefits.

Rick

Guest · Posted: Sat Mar 04, 2000 10:41 pm Post subject:

From: William
Email:
Date: 04 Mar 2000
Time: 23:41:49

Yep, it was on a straight road but I still got whipped by a 1990 somethin Acclaim. When I first bought my 77 924 in August they told me the engine
had been rebuilt by one of those J.C. whitney kits, well that's gotta be a lie because they don't sell the engine rebuild kits for Porsche in there, only VW but what do I know I guess it's a VW engine I heard. The Odometer was stuck at 107,800 and they told me it had just quit, I fixed that easy, a plastic gear slipped off the track but it was a pain getting the odometer back in!

The reason I think that I lost was it was very cold last night and I don't seem to have much acceleration when it's cold, plus it's only a 4-speed and I think the linkage needs to be adjusted or something, when its cold the shift knob is really stiff!

As far as mods go, all I have done is run a 2 1/2
exhaust all the way back with some nice dual chrome monza tips, its very loud but sounds clean
like a 928 almost(I wish). And I have gone through
the electrical system and cleaned up with new wires,
installed a street Fireball Coil, new plugs and plug wires, and fixed some vacuum leaks, still have one vacuum leak in front of the cold start injector, the black air intake is all cracked
and silicone seems to be holding it I guess for now.

I do plan on keeping this car until the engine blows up, I like it, the body is like a smaller version of a Camaro and a RX-7 Combined or something, looks great Candy Red too!

IF anyone has a layout diagram of adding a Audi throttle body or a Turbo let me know before the winter is up and then I have to go back to work :(

Guest · Posted: Mon Mar 06, 2000 9:49 am Post subject:

From: Vaughan
Email: vscott39@hotmail.com
Date: 06 Mar 2000
Time: 10:49:23

You know, guys, this is why we put together the whole Technical section on this website.

Take a look into it, you'll see an engine section, and under that a section about throttle body swaps (with my photos) and other performance improvements.

Ignition and cam timing changes can also improve things.

I'd recommend upgrading to Mobil1 or similar synthetic gear lube.

Replace the rubber boot that's broken - 'nuff said. This will kill your performance and reliability.
It's great to be cheap, but spend the money where it counts. Sell off the fancy ignition system if you need to - it won't help much anyway over stock.

BTDT...

Vaughan

Guest · Posted: Tue Mar 07, 2000 1:12 pm Post subject:

From: Jon McCullough
Email: Apple_Bit@mac.com
Date: 07 Mar 2000
Time: 14:12:53

I have found the 924 to be an excellent economy car, yes. But if you want to make it go fast, you must put some good money into it and realize that in order to make this car fast, you must sacrifice fuel economy. In order to do this, the most important things to do is have the head ported & pollished and a nice cam put in the car. It helps to add headers- but adding webers and some of these rediculous things are what I do not believe in. The Porsche 924 with the 2.0 liter and the CIS ingection can handle even twice the amount of horsepower that it puts out. My dyno test proves that with the improvements I have made to the car already (100+ hp and 100+ lbs/tq at the wheel) from a stock car that at the flywheel that put out 110 hp is not bad improvements. People must realize that trying to achive peak hp is not the way to win races, but to have a good strong powerband in all the revs that will be used most of the time. I recommend the first grind web cam for those beginners with 8.5:1 compression. I will be adding a stroker and/or compression to my next engine. I autocross this car, and so within the rules, I could actually put in a 944 turbo engine and still stay in the same class. Now for those who really want their 924 to scream with ease and still be a good daily driver, that is the 'way to go. It is one of the more difficult and expensive ways, but in the end it is worth the cost over the Audi 5000 series engines and the horsepower that it the 944 turbo puts out stock (217 hp for most) is more than the Audi 5000 turbo (160 hp). On computer simulations that I run, with the Porsche 944 Turbo (stock) in the Porsche 924 the car excellerates up to 60 in less than 5 seconds! It is also easy to get the 944 turbo engine up to 300/350 hp depending on what you want it for and what you want to sacrifice. Some people have even gotten 400 ponies out of those engines. It would be too difficult to do that with the Porsche 924 engine. The only reason to keep the 924 engine in is the cost is cheaper plus some of us/you/me might take pride in just the 924 engine and it's era. I think the 924 is a great car that is at a excellent price and too many people don't give the car the credit it should have. It handles excellent, is reliable, and fun to drive. For the price range it is in it is hard to find something that handles as well. I am happy that even my stock 924 will outrun the Mazda RX7's and when properly taken care of will outlast cars of its same generation (well, it's unfair... I am compairing German technology to Jap/American technology) Hope you and everyone enjoys their Porsche(s) as much as I enjoy mine! I have decided that I am going to let someone else enjoy one of my Porsche's now. I already have one and this other one I fixed and just want to let someone else have fun with it. Just stock, they are a great car for the price!

On average my car is running 0-60 in 6.9 seconds.
I want to get it to 6.3 or so though...

Guest · Posted: Tue Mar 07, 2000 11:47 pm Post subject:

From: Chris C.
Email: ccole4@neo.rr.com
Date: 08 Mar 2000
Time: 00:47:11

No one has really answered his question yet. The first thing I would do is have head mods done. I have done this on my car and it made a world of difference. Peaco will do basic head mods for $450.00 This Includes portind, relieving the valve pockets, three angle valve job, ect. After that Ad a paeco stage 2 camshaft and a header. All of this will run you around $850.00