Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
SVT Shelby GT500
2007 Shelby Weight Problem????
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Robert M" data-source="post: 3018620" data-attributes="member: 9628"><p>I was not in Altanta for the 3-Way 428 GT500 Shelby dyno pulls, but I heard there were some upset owners who could not believe that their Shelbys were not pulling closer to 300h.p. at the rear wheels. Those Shelbys were running crisp and clean according to the dyno owner and other witnesses. I was there to withness the BOSS 429 pulls. The owner was not happy with sub 250 RWHP pulls. He said that it should be closer to 350 RWHP, something was wrong! It is sad when reality slaps you in the face. I thought my 375h.p. 429SCJ should be in the 300-325RWHP range!! But even when we did the power tweaking on the Holley, with 15-20 pulls two years later and a "well tuned" 375h.p. 429SCJ, 290RWHP was it. Many claim that most of these vintage muscle car engines were under rated in horse power and torque by the factory, maybe some of them were, but the real world numbers don't confirm that "most of them were".</p><p></p><p>If you noticed, I was the only vintage muscle Mustang to out pull that brand new 1999 Mustang GT that was on-loan to the magazine at that time! That upset some owners also!</p><p></p><p>R</p></blockquote><p></p>
[QUOTE="Robert M, post: 3018620, member: 9628"] I was not in Altanta for the 3-Way 428 GT500 Shelby dyno pulls, but I heard there were some upset owners who could not believe that their Shelbys were not pulling closer to 300h.p. at the rear wheels. Those Shelbys were running crisp and clean according to the dyno owner and other witnesses. I was there to withness the BOSS 429 pulls. The owner was not happy with sub 250 RWHP pulls. He said that it should be closer to 350 RWHP, something was wrong! It is sad when reality slaps you in the face. I thought my 375h.p. 429SCJ should be in the 300-325RWHP range!! But even when we did the power tweaking on the Holley, with 15-20 pulls two years later and a "well tuned" 375h.p. 429SCJ, 290RWHP was it. Many claim that most of these vintage muscle car engines were under rated in horse power and torque by the factory, maybe some of them were, but the real world numbers don't confirm that "most of them were". If you noticed, I was the only vintage muscle Mustang to out pull that brand new 1999 Mustang GT that was on-loan to the magazine at that time! That upset some owners also! R [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
SVT Shelby GT500
2007 Shelby Weight Problem????
Top