Stock shelby ?

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09-22-2007, 11:06 AM

Trmachuno

5th Gear Member

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Join Date: Jul 2007

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Posts: 2,365

Stock shelby ?

Just wondering if the GT500's have forged internals stock? and if so or not, what's the most amount of hp u can run on them safely w/the stock set-up?

09-22-2007, 06:38 PM

ilmor

3rd Gear Member

Join Date: Apr 2007

Location:

Posts: 630

RE: Stock shelby ?

Here's some info I found...

Type

V-8

Manufacturing location

Romeo, Michigan

Configuration

Iron Block and Aluminum Heads

Intake manifold

Cast-aluminum with Roots-type supercharger and air-to-water intercooler

Exhaust manifold

Cast iron

Crankshaft

Forged steel

Throttle Body

Dual 60 mm, electronic

Valvetrain

DOHC, 4 valves per cylinder

Valve diameter

Intake: 37.0 mm; Exhaust: 32.0 mm

Pistons

Forged aluminum

Connecting Rods

Cracked forged steel I-beams

Ignition

Coil-on-plug

Bore x stroke

3.552 x 4.165 in. / 90.22 x 105.8 mm

Displacement

330 cu. in. / 5,409 cc

Horsepower

500 hp @ 6,000 rpm

Torque

480 lb.-ft. @ 4,500 rpm

Compression ratio

8.4:1

Redline

6,250 rpm

Idle Speed in Neutral

750 rpm

Engine control system

Spanish oak PCM

Recommended fuel

Premium only

Fuel capacity

16.0 gallons

Fuel Injection

Electronic returnless sequential

Oil capacity

6.5 quarts 5W-50 Full Synthetic

Coolant capacity

21 quarts

09-26-2007, 07:37 AM

Buckman

3rd Gear Member

Join Date: Jul 2006

Location: North Jackson, OH

Posts: 544

RE: Stock shelby ?

Quote:

Just wondering if the GT500's have forged internals stock? and if so or not, what's the most amount of hp u can run on them safely w/the stock set-up?

Yes, it has forged internals.
All signs point to 650rwhp being the "safe" limit of power, somewhat similar to the Terminators.
Obviously there will be people out there pushing the envelop with varying degrees of success.

Here is a quote from John Lund after talking to the Mahle engineer that designed the rod/piston combo for the GT500:

Quote:

"After a recent visit to Roush and SVT in Dearborn with the EVO machine we were able to gather alot of excellent test and research data on the GT 500. We also meet up with the Maule engineers and actually had a great conversation with the guy that designed the Rod and Piston Combo. The Piston is a stout unit although it is near the same desing as the Ford GT it isn't the exact same piston. Some slight design differances in the Ring land for oil control and some very slight weight differances but in and of itself a very stout design and much stronger than the 03/04 Cobra piece.

The Rods are indeed a craked forged I-beam design. The engineer indicated a 650-675 crank HP range was nearing the limit but more important was the RPM limit. They could handle quite a bit of load as long as the Revs were kept in tact. He indicated the more power being made the lower the rpm. Stock Rev is 6250 for that reason so I'd once these KB units start making it to streets I think we will see more internal rod damage and some blown motors just due to purely exceeding the Rods design capability."