Roush stage 1 numbers before upgrades

[SpeedLu]

Roush blower is good, Roush tune is not so good. Do yourself a favor and follow the advice you've been given here: get a custom tune to wake up that supercharger.

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[15RRGT]

Because he is hitting the speed limiter.

Just wondering because you're not going to make much more power running past 7000rpm on the stage one tune and you can get to 7000 in 5th without hitting the limiter. I just ran my stage one roush tune in 5th to 7000 on the dyno Saturday. Thanks.

 

[Whipple SC]

Just wondering because you're not going to make much more power running past 7000rpm on the stage one tune and you can get to 7000 in 5th without hitting the limiter. I just ran my stage one roush tune in 5th to 7000 on the dyno Saturday. Thanks.

Possibly different gear ratio. But peak power on the Roush Stage 1 is 6800-6900. A custom tune will carry to 7500.

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