[Suspension] My Friends Camaro: Witt Pedders Buick Feed back Needed
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My Friends Camaro: Witt Pedders Buick Feed back Needed
These features are mission critical for our G8. One of our goals is to reach a minimum of 1 G in lateral acceleration on the skid pad. The upgrade from the OE 245/40/19 REO50 Potenza to the Pole Position along with an increase in contact patch should get us there. At our Texas Dealer Conferences on a poorly surfaced skid pad we measured a steady .94 with a peak of .97. Along with our Bridgestone Pole Positions, our original eXtreme coilovers have been replaced with Pedders new Adjustable eXtreme Xa coilovers. The front ride height is now 5mm lower and the rear ride height is 15mm lower. This has improved the front to rear balance. The alignment has been refined to:
FRONT
Caster +7.75 No Bias
Camber -1.5
Toe -.21 -.19
Total Toe -.41
REAR
Camber -1.6
Toe -.18 -.20
Thrust Angle +.01
Total Toe -.38
This is an aggressive alignment. It works because this G8 is fully Pedderised. We do not recommend these alignment specifications for those that drive G8s with OR suspension or are concerned with tire wear. Pedders uses our G8 as a test vehicle with skilled professional drivers.
Witt Pedders Buick in Muskegon Michigan did an outstanding job with the alignment. The steering wheel is dead nuts straight, turn is is excellent, straight line high speed stability -- it was great before the upgrades and we expect it to be better but the weather has limited our ability to test the new setup. On the highway at street legal speeds the G8 is incredibly planted. It feels rock solid. The difference is significant compared to the OE wheel and tire package. The 36 series profile did exact a toll on ride quality. It was no unexpected and it is a trade-off most enthusiasts would make in a heartbeat. As we get more miles on the setup we will adjust the damping settings front and rear to find the optimal combination for daily driver comfort and handling along with the maximum setup for the track.
With our Forgeline ZX3 Wheels and Bridgestone Pole Positions we achieved a weight reduction over 40 pounds. Reducing un-sprung weight improve virtually all aspects of a vehicles performance. Even though our wheels and tires are much larger the reduction at each is just over 10 pounds. eXtreme G8 Sway Bars are set full hard rear and one off full hard front. These refinements to the alignment along with a wider track and larger tire contact patch should bring us withing reach of our goal.
To give the G8 a more aggressive look to go along with the incredible performance we selected a set of E G Classics grilles. These Stainless Steel Fine Mesh grilles are designed to install over the factory grilles. At Pedders we take things to the eXtreme and that is what we did with our dodge truck discount parts (grille upgrade). The upper grille have no restriction. The lower grilles are blocked at the outer edges. Pontiac closed the outer areas to match the duct in the center that directs airflow to the radiator. That lower insert went away with our ProCharger less than a week after we took delivery. We decided to open them up. Why you may ask. There may be brake cooling ducts in the future and it just looks mechanically nasty.
FRONT
Caster +7.75 No Bias
Camber -1.5
Toe -.21 -.19
Total Toe -.41
REAR
Camber -1.6
Toe -.18 -.20
Thrust Angle +.01
Total Toe -.38
This is an aggressive alignment. It works because this G8 is fully Pedderised. We do not recommend these alignment specifications for those that drive G8s with OR suspension or are concerned with tire wear. Pedders uses our G8 as a test vehicle with skilled professional drivers.
Witt Pedders Buick in Muskegon Michigan did an outstanding job with the alignment. The steering wheel is dead nuts straight, turn is is excellent, straight line high speed stability -- it was great before the upgrades and we expect it to be better but the weather has limited our ability to test the new setup. On the highway at street legal speeds the G8 is incredibly planted. It feels rock solid. The difference is significant compared to the OE wheel and tire package. The 36 series profile did exact a toll on ride quality. It was no unexpected and it is a trade-off most enthusiasts would make in a heartbeat. As we get more miles on the setup we will adjust the damping settings front and rear to find the optimal combination for daily driver comfort and handling along with the maximum setup for the track.
With our Forgeline ZX3 Wheels and Bridgestone Pole Positions we achieved a weight reduction over 40 pounds. Reducing un-sprung weight improve virtually all aspects of a vehicles performance. Even though our wheels and tires are much larger the reduction at each is just over 10 pounds. eXtreme G8 Sway Bars are set full hard rear and one off full hard front. These refinements to the alignment along with a wider track and larger tire contact patch should bring us withing reach of our goal.
To give the G8 a more aggressive look to go along with the incredible performance we selected a set of E G Classics grilles. These Stainless Steel Fine Mesh grilles are designed to install over the factory grilles. At Pedders we take things to the eXtreme and that is what we did with our dodge truck discount parts (grille upgrade). The upper grille have no restriction. The lower grilles are blocked at the outer edges. Pontiac closed the outer areas to match the duct in the center that directs airflow to the radiator. That lower insert went away with our ProCharger less than a week after we took delivery. We decided to open them up. Why you may ask. There may be brake cooling ducts in the future and it just looks mechanically nasty.
Last edited by drewtiss; Feb 16, 2009 at 08:48 PM.
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