1990 944 S2 dyno - firehawk chip

Dal Heger · 04-20-2004, 10:53 AM

Well I finally had the S2 dynoed with the factory Firehawk chip.

As you see, the graph is very consistent, the horsepower and torque curves on all of the runs were the same shape. The difference between these two runs (shown) were that we warmed up the car a little bit more for the higher horsepower run. The oil pressure was still at 4.5bar at idle, so I feel that I have a few more horses to be unleashed.

As you can see, the best run produced 193.3 rwhp and 193.3 lb-ft of torque (with about 170 lb-ft@the wheels available at 2500 rpm). These numbers convert to about 227 bhp and 227 lb-ft of torque at the flywheel using 15% conversion (loss) factors. Not too bad considering these cars were rated at 208/211 bhp/torque from the factory.

Just thought that I'd share.

Dal.

dave120 · 04-20-2004, 11:00 AM

Nice! Do you have to use super high octane with that chip, or just 93?

Dal Heger · 04-20-2004, 11:01 AM

Quote:

Originally posted by dave120
Nice! Do you have to use super high octane with that chip, or just 93?

Just premium, 91/93.

Dal.

Bryan · 04-20-2004, 11:01 AM

Nice. That's great info. Thanks for posting it.

How does the car feel subjectively? Response, driveability, seat-of-the-pants stuff?

Bryan

Z-man · 04-20-2004, 11:03 AM

Looks impressive!!
Do you have a baseline dyno run without the firehawk chip?
How much did the chip run you? Where did you get your hands on one?

I am seriously considernig this 'upgrade' for my 89 944S2.

-Z.

pete944 · 04-20-2004, 11:03 AM

Nice looking chart, Dal. That's a pretty impressive gain for an S2 chip.
Is that chip still available and how many arms & legs does it cost?

Damian in NJ · 04-20-2004, 11:06 AM

I'd gladly pay a grand for a chip that would give me 19 more hp across the board, but they don't exist for 968's.

dave120 · 04-20-2004, 11:11 AM

Last time I heard about that chip somebody was saying they could get copies of them for like $500...pretty steep but for almost 20 hp?? I think that's definately still going to be the cheapest way to get real power from an S2

Dal Heger · 04-20-2004, 11:16 AM

Heh, The chip is not, and never was available to anyone but the teams that bought firehawk S2's. The Porsche factory never sold the chip. I paid an arm and half a leg for it, but I love it.

I might be convinced to make copies of it.. PM me if you're seriously interested.

Subjectively, the car is a blast to drive, there is power everywhere. It feels very quick. The exhaust note sounds more aggressive (I figure that's from running more advance) and the car is completely drive-able. I usually find myself trundling around at 2000-2500 rpm in town with lots of torque available. I used to drive around 3000 rpm with the stock chip to get the same feeling of responsiveness and torque. There is also a really nice kick at about 4000 rpm. In full battle mode, this car screams!

I guess having the factory resources to make a race chip gives you a really nice chip. Most of the other chips for the S2's don't quite match up.

Unfortunately I didn't have the foresight to get a baseline for the stock chip.

Dal.

Dal Heger · 04-20-2004, 11:19 AM

Quote:

Originally posted by dave120
Last time I heard about that chip somebody was saying they could get copies of them for like $500...pretty steep but for almost 20 hp?? I think that's definately still going to be the cheapest way to get real power from an S2

Yea, that was me. It was $600, but that was from the guy I bought the chip from. I now have a chip burner

.

Dal.

Riff · 04-20-2004, 11:40 AM

Looking good Dal!!! Check your PM.

Cheers,

Dal Heger · 04-20-2004, 11:50 AM

Oh, and if anyone cares, I average about 22 MPG (on the original 160k mile O2 sensor - should replace that) for mixed highway/city driving. The best I managed was 29.4 mpg on a long highway trip at an average of 85 mph. Worst was 20.3 mpg so far.

Dal.

Larry Parker · 04-20-2004, 11:54 AM

Here is the dyno chart from my old S2 with the stock chip.... The motor was balanced and blue printed with a 5 angle valve job......

Stock class motor.....

Cheers
Larry

Larry Parker · 04-20-2004, 11:59 AM

Note how rich it was running.... under 11:1 in the upper rpms.......
The car also hade a free flow filter in the nose panel, free flow exhaust with no cat, and the first oversize pistons...... Ohh and light p&p ..... So it goes to show you that the motor is pretty optimized!!

Larry Parker · 04-20-2004, 12:02 PM

Cams, more compresion and more timing is the only place you will pick up power in that car.......................Or BOOST

04-20-2004, 10:53 AM	#1
Dal Heger Addict Rennlist Member Join Date: Nov 2001 Location: Calgary, Canada Posts: 1,269	1990 944 S2 dyno - firehawk chip Well I finally had the S2 dynoed with the factory Firehawk chip. As you see, the graph is very consistent, the horsepower and torque curves on all of the runs were the same shape. The difference between these two runs (shown) were that we warmed up the car a little bit more for the higher horsepower run. The oil pressure was still at 4.5bar at idle, so I feel that I have a few more horses to be unleashed. As you can see, the best run produced 193.3 rwhp and 193.3 lb-ft of torque (with about 170 lb-ft@the wheels available at 2500 rpm). These numbers convert to about 227 bhp and 227 lb-ft of torque at the flywheel using 15% conversion (loss) factors. Not too bad considering these cars were rated at 208/211 bhp/torque from the factory. Just thought that I'd share. Dal. __________________ Dal (Dalibor) Heger '90 951 Remember the three R's: Respect for self; Respect for others; and Responsibility for all your actions. Rule 1 - Gravity always works Rule 2 - Trains will always win Rule 3 - All bleeding eventually stops Rule 4 - There is no cure for stupidity

04-20-2004, 11:03 AM	#5
Z-man Addict Rennlist Member Join Date: Jan 2002 Location: North NJ, USA Posts: 9,370	Looks impressive!! Do you have a baseline dyno run without the firehawk chip? How much did the chip run you? Where did you get your hands on one? I am seriously considernig this 'upgrade' for my 89 944S2. -Z. __________________ Guards Red 89 944S2 NNJR PCA #142 Life is not a journey to the grave with the intention of arriving safely in a pretty & well preserved body, but rather to skid in broadside, totally worn out & proclaiming, "WOW WHAT A RIDE!" My homepage

04-20-2004, 11:03 AM	#6
pete944 Addict Lifetime Rennlist Member Join Date: Nov 2001 Location: Dayton, Ohio Posts: 7,266	Nice looking chart, Dal. That's a pretty impressive gain for an S2 chip. Is that chip still available and how many arms & legs does it cost? __________________ Pete My former cars: The S2 Project- - -1985.5 944- - -P-car Online

04-20-2004, 11:06 AM	#7
Damian in NJ Addict Rennlist Member Join Date: Jul 2001 Posts: 8,050	I'd gladly pay a grand for a chip that would give me 19 more hp across the board, but they don't exist for 968's. __________________ 95 Speed Yellow/Black 968 Cab,Kinesis Supercups,Promax,Big Red fronts,MO30 rears,ss brake lines,MO30 sway bars,DaveG airbox mod,LSD,H&R sport springs,BK control arm brace,Dynatech billet strut brace,CS steering wheel,short shift,sport seats,Cargraphic ss 100 cell cat and exhaust,RoW front turn signal lenses

04-20-2004, 11:16 AM	#9
Dal Heger Addict Rennlist Member Join Date: Nov 2001 Location: Calgary, Canada Posts: 1,269	Heh, The chip is not, and never was available to anyone but the teams that bought firehawk S2's. The Porsche factory never sold the chip. I paid an arm and half a leg for it, but I love it. I might be convinced to make copies of it.. PM me if you're seriously interested. Subjectively, the car is a blast to drive, there is power everywhere. It feels very quick. The exhaust note sounds more aggressive (I figure that's from running more advance) and the car is completely drive-able. I usually find myself trundling around at 2000-2500 rpm in town with lots of torque available. I used to drive around 3000 rpm with the stock chip to get the same feeling of responsiveness and torque. There is also a really nice kick at about 4000 rpm. In full battle mode, this car screams! I guess having the factory resources to make a race chip gives you a really nice chip. Most of the other chips for the S2's don't quite match up. Unfortunately I didn't have the foresight to get a baseline for the stock chip. Dal. __________________ Dal (Dalibor) Heger '90 951 Remember the three R's: Respect for self; Respect for others; and Responsibility for all your actions. Rule 1 - Gravity always works Rule 2 - Trains will always win Rule 3 - All bleeding eventually stops Rule 4 - There is no cure for stupidity

04-20-2004, 11:00 AM	#2
dave120 Super User Join Date: Jan 2002 Location: Central Florida Posts: 2,263	Nice! Do you have to use super high octane with that chip, or just 93?

04-20-2004, 11:01 AM	#4
Bryan User Join Date: Aug 2001 Posts: 784	Nice. That's great info. Thanks for posting it. How does the car feel subjectively? Response, driveability, seat-of-the-pants stuff? Bryan

04-20-2004, 11:11 AM	#8
dave120 Super User Join Date: Jan 2002 Location: Central Florida Posts: 2,263	Last time I heard about that chip somebody was saying they could get copies of them for like $500...pretty steep but for almost 20 hp?? I think that's definately still going to be the cheapest way to get real power from an S2

04-20-2004, 11:40 AM	#11
Riff Addict Rennlist Member Join Date: May 2001 Location: North Of Chicago Posts: 1,787	Looking good Dal!!! Check your PM. Cheers, __________________ Riff '90 S2 '07 MZ3 My Rennlist Member Website My P-Caronline Profile

04-20-2004, 11:50 AM	#12
Dal Heger Addict Rennlist Member Join Date: Nov 2001 Location: Calgary, Canada Posts: 1,269	Oh, and if anyone cares, I average about 22 MPG (on the original 160k mile O2 sensor - should replace that) for mixed highway/city driving. The best I managed was 29.4 mpg on a long highway trip at an average of 85 mph. Worst was 20.3 mpg so far. Dal. __________________ Dal (Dalibor) Heger '90 951 Remember the three R's: Respect for self; Respect for others; and Responsibility for all your actions. Rule 1 - Gravity always works Rule 2 - Trains will always win Rule 3 - All bleeding eventually stops Rule 4 - There is no cure for stupidity

04-20-2004, 11:54 AM	#13
Larry Parker User Join Date: Nov 2001 Location: detroit area Posts: 383	Here is the dyno chart from my old S2 with the stock chip.... The motor was balanced and blue printed with a 5 angle valve job...... Stock class motor..... Cheers Larry

04-20-2004, 11:59 AM	#14
Larry Parker User Join Date: Nov 2001 Location: detroit area Posts: 383	Note how rich it was running.... under 11:1 in the upper rpms....... The car also hade a free flow filter in the nose panel, free flow exhaust with no cat, and the first oversize pistons...... Ohh and light p&p ..... So it goes to show you that the motor is pretty optimized!!

04-20-2004, 12:02 PM	#15
Larry Parker User Join Date: Nov 2001 Location: detroit area Posts: 383	Cams, more compresion and more timing is the only place you will pick up power in that car.......................Or BOOST