Dyno Numbers For Gt500

cablernc · 08-13-2006, 12:10 PM

Pro-Dyno put my Shelby on the dyno this past Wed. and after a little tune they got 461

**Pro-Dyno** · 08-15-2006, 09:26 AM

The air intake temps were removing 3deg so stock should have bean around 400rwhp SAE

RF Cobra · 08-15-2006, 09:55 AM

I thought the stock numbers would have been higher. I guess Ford decided not to under rate the output this time. Nice increase with the tune.

**Pro-Dyno** · 08-30-2006, 04:20 PM

Quote:

Originally Posted by cablernc

Pro-Dyno put my Shelby on the dyno this past Wed. and after a little tune they got 461

Thursday night it will screem!

ac427cobra · 10-26-2006, 08:57 PM

I recently went to my Buddy Marv's speed shop, C&M Performance and we got the car up on the dyno. We were both pretty excited! The car had just turned over 1,000 miles on the drive up to his shop!

Ok, here's the first dyno run. I was somewhat disappointed at the initial readings we had. 425/427

Sorry for the size of these but the graph is so light it has to be this big to read it!

Then, just to make sure we had an accurate baseline, we ran again. The results were 414/415 (sheet not attached) Now I know what everyone was talking about when they say the motor heat soaks easily.

So, we then put the Corsa Axle-Backs on and gave her another run. It took us maybe 35 minutes or so to do that. So the car sat all tolled about 45 minutes or so?

The run with the Axle-Backs on was 427/427. (no sheet attached) Virtually ZERO gain (ok, two horsepower) from the axle-backs. VERY disappointing. The car sounded lots better but not worth the money in my book. And it has some nice tips on it to boot! So all was NOT lost on that!

Ok, so now I give Marv the go ahead for the tune. He gets on the computer and goes to hacking! The car originally had 12.5 degrees of timing and was running just a tad rich.

After the tune was loaded we ran again! This time we made some progress! 479/463

By now, the shop was getting warm. That run was 77 degrees. So without changing anything on the tune we decided to open up the shop and cool it off a bit. The car cooled nicely and responded to the cooler air in a positive manner knocking off our high of the night 499/481

Marv saw the timing spike up a bit because of the cooler temps and he backed some timing out of it.

This is the final tune and our last run. 484/465

So, those are the numbers! I'm pretty happy with the way the car responded!

Once I get the JLT CAI, I think we will break the 500 hp barrier no problem!

I'm really excited about this car!!!

**Mystic_Cobra** · 11-19-2006, 12:45 AM

I was thinking that the SAE correction would adjust for the temp change you mention in the shop. I guess this is not the case?

ac427cobra · 11-19-2006, 03:33 AM

Quote:

Originally Posted by Mystic_Cobra

I was thinking that the SAE correction would adjust for the temp change you mention in the shop. I guess this is not the case?

Jimmy:

That I couldn't tell you? Maybe there are some dyno experts out there that can comment?

**cobrabitn** · 11-19-2006, 11:11 AM

Very good numbers Bruce!

ac427cobra · 11-19-2006, 06:50 PM

Quote:

Originally Posted by cobrabitn

Very good numbers Bruce!

Thanks Tony. I hope to crack the 500 barrier once I get my CAI.

08-13-2006, 12:10 PM	#1
cablernc Registered User Join Date: Aug 2005 Posts: 75	Dyno Numbers For Gt500 Pro-Dyno put my Shelby on the dyno this past Wed. and after a little tune they got 461

08-15-2006, 09:26 AM	#2
Pro-Dyno Super Moderator Join Date: Dec 2004 Location: Fort Mill, SC Posts: 696	The air intake temps were removing 3deg so stock should have bean around 400rwhp SAE __________________

10-26-2006, 08:57 PM	#5
ac427cobra Fast in; slide out Join Date: Oct 2002 Location: Milwaukee, WI Posts: 207	I recently went to my Buddy Marv's speed shop, C&M Performance and we got the car up on the dyno. We were both pretty excited! The car had just turned over 1,000 miles on the drive up to his shop! Ok, here's the first dyno run. I was somewhat disappointed at the initial readings we had. 425/427 Sorry for the size of these but the graph is so light it has to be this big to read it! Then, just to make sure we had an accurate baseline, we ran again. The results were 414/415 (sheet not attached) Now I know what everyone was talking about when they say the motor heat soaks easily. So, we then put the Corsa Axle-Backs on and gave her another run. It took us maybe 35 minutes or so to do that. So the car sat all tolled about 45 minutes or so? The run with the Axle-Backs on was 427/427. (no sheet attached) Virtually ZERO gain (ok, two horsepower) from the axle-backs. VERY disappointing. The car sounded lots better but not worth the money in my book. And it has some nice tips on it to boot! So all was NOT lost on that! Ok, so now I give Marv the go ahead for the tune. He gets on the computer and goes to hacking! The car originally had 12.5 degrees of timing and was running just a tad rich. After the tune was loaded we ran again! This time we made some progress! 479/463 By now, the shop was getting warm. That run was 77 degrees. So without changing anything on the tune we decided to open up the shop and cool it off a bit. The car cooled nicely and responded to the cooler air in a positive manner knocking off our high of the night 499/481 Marv saw the timing spike up a bit because of the cooler temps and he backed some timing out of it. This is the final tune and our last run. 484/465 So, those are the numbers! I'm pretty happy with the way the car responded! Once I get the JLT CAI, I think we will break the 500 hp barrier no problem! I'm really excited about this car!!! __________________ Bruce Born to race; forced to work. If you're interested in the best Cobra IRS bushing kit available on the market today, you need to visit my site: www.fulltiltboogieracing.com

11-19-2006, 12:45 AM	#6
Mystic_Cobra NASA American Iron #16 Join Date: Oct 2001 Location: Northern VA Posts: 608	I was thinking that the SAE correction would adjust for the temp change you mention in the shop. I guess this is not the case? __________________ Jimmy Bost #00539 '17 Ruby Red GT350 #H6022 \| '65 Mustang hardtop

11-19-2006, 11:11 AM	#8
cobrabitn Dr Jekyll on the street, Mr Hyde on the track Join Date: Jun 2001 Location: Rock Hill SC Posts: 14,649	Very good numbers Bruce! __________________ Cobrabitn 2016 Ruby Red Metallic with Caribou accent F-350 Crew Cab Stump Puller! 6.7 Diesel Automatic with Chrome Package, Off Road Package, 3.55 Locking axles, and Ultimate Lariat Interior Trim Package! 2017 Shelby GT350 Coupe - track car! Mods: JLT True Cold Air oil catch can 2009 Vista Blue Shelby GT 500 Coupe - Garage Queen Tinted Windows JLT True Cold Air Kit Pro-Dyno Tune 526 rwhp - 511 rwtq 1994 Rio Red Indy Pace Car #22 "Runabout" Snake in the grill MGW shift knob 1996 SVT Cobra Wheels 1969 New Lime Mustang Mach 1 Sportsroof - Second owner - bone stock with shaker. One SVT Cobra, one Shelby GT500, one 69 mach 1, and a Shelby GT350 is better than nothing! Custom Data Plates for your Mustang or Ford! Buy "Cool Merchandise" at Data Plates Plus www.dataplatesplus.com See my MSR Video here!

08-15-2006, 09:55 AM	#3
RF Cobra Registered User Join Date: Jun 2004 Location: Clemmons, NC Posts: 1,566	I thought the stock numbers would have been higher. I guess Ford decided not to under rate the output this time. Nice increase with the tune.

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