m3incorp
Well-Known Member
- Joined
- Feb 6, 2020
- Threads
- 22
- Messages
- 4,224
- Reaction score
- 2,740
- Location
- Georgia/Colorado
- First Name
- James
- Vehicle(s)
- 2019 Mustang GT Premium with Roush Phase 2, 2017 Corvette Z06, 2018 Subaru WRX, 2015 VW Golf, 2015 Ford Fusion
Thanks for that. If you are familiar with the Z06 and the Roush Phase 2, then I'm sure you know that I was talking about at the flywheel. I said absolutely nothing about a dyno, as that has nothing to do with the conversation and I do agree with what you say about dyno numbers. I also know how drive train loss works, but again that was not what the conversation is about. You seem to have taken offense to my statement about the C7. I own both the C7 Z06 and the Roushchargered Phase 2 Stang, so I was comparing apples to apples with my two cars. OP wants his Mustang to keep up with a C7 Corvette, so I would say that my perspective would be right on. I know how much my C7 and my Mustang both weighs and would not expect a much heavier car to beat a much lighter car unless there are significant mods made to the heavier car.
For some reason, in my email I can read that you had a follow-up to this post, but if doesn't show up here. I completely agree with what you wrote. Remember, I am not the OP (person asking the question). You are replying as though it was me asking the question as to how to keep up with a C7 Corvette. Again, we are in agreement
For some reason, in my email I can read that you had a follow-up to this post, but if doesn't show up here. I completely agree with what you wrote. Remember, I am not the OP (person asking the question). You are replying as though it was me asking the question as to how to keep up with a C7 Corvette. Again, we are in agreement
Depends on where the 650 is being made -- flywheel or tire on the Z06 first off. Most Zop6 C7's are RATEd at 639 FLYWHEEL. If your friend is claiming 650 and its at the tire he is CLEARLY modified and not stock. Also depends on how conservative the dyno number was or if he is sand bagging. Here again dyno numbers are not proof of what a car will do. They are designed to show before after and give a person an idea what the car MAY be capable of. Roush tunes on their packages are EXTEREMELY protective and conservative. Your "750" package is a flywheel best number made on an engine dyno when it was designed at Roush. There is at minimum a 15% loss between FW and tire. So on a stick shift car 750 equates to 630 tops and likely lower through a 10R80. And if protection strategies are in play -- as they always are in Roush tunes -- that number is not representative of how the car is actually performing at WOT in a "spirited" driving scenario. The C7 also weighs 3500 pounds compared to your 3900+ pound S550. 400 pounds is a large difference.
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