315 size rear tire...

[Imfishintx]

OK last question.....Did the customer request this size or did you recommend it? I'm only asking because I would have thought a 30 series sidewall would have been a closer match to factory overall height of the tire,Where the 35 sidewall height you picked up an extra 1" in overall height, and I'm not a fan of run flats....but that has no bearing on the sidewall height question.

Thanks in advance.

[Sales@Hennessey]

Originally Posted by Imfishintx

OK last question.....Did the customer request this size or did you recommend it? I'm only asking because I would have thought a 30 series sidewall would have been a closer match to factory overall height of the tire,Where the 35 sidewall height you picked up an extra 1" in overall height, and I'm not a fan of run flats....but that has no bearing on the sidewall height question.

Thanks in advance.

The engineers determined this was the best rolling diameter based off the measurements of the stock wheels. I personally dont have much more information on that. Again we can do this withut run flats, customer choose to use Runflats since the car doesn't have a spare.

[PfadtRacing]

Originally Posted by dms

I have mentioned this many times. the larger the split configured tire you put on, the worse the understeer. The Camaro has a nasty understeer. On a skid pad, your g forces will go down. Just a heads up. a 295 would be a better choice. We also think a 295, with the correct offset, will work in the fronts.

Pedders USA just recieved their Red SS2. Already working with Forgeline.
More on this on a future thread

mike
dms

Mike,

I'd have to disagree with this statement. If you engineer the suspension correctly to work with the Factory stagger you can and will correct the understeer. We've taken the factory wheel package with our Coil Overs and Sport Sways and we've got the car very balanced. I don't think someone should have to use a square set-up to achieve great performance results. All of our testing has been done with the Factory package (wheels and tires) and we have enough adjustability built into our system to accommodate different wheel and tire packages.

If someone wants to run 315/335's in the rear and 285/295's in the front they can do that with our set up and they'll have great results.

Kind regards,

[GTAHVIT]

Originally Posted by Jordan

Mike,

I'd have to disagree with this statement. If you engineer the suspension correctly to work with the Factory stagger you can and will correct the understeer. We've taken the factory wheel package with our Coil Overs and Sport Sways and we've got the car very balanced. I don't think someone should have to use a square set-up to achieve great performance results. All of our testing has been done with the Factory package (wheels and tires) and we have enough adjustability built into our system to accommodate different wheel and tire packages.

If someone wants to run 315/335's in the rear and 285/295's in the front they can do that with our set up and they'll have great results.

Kind regards,

If I'm not mistaken, I believe the Pedders guys have done exactly what you said, Jordan. Part of the work they did with Hennessy was to get the suspension working correctly with the staggered setup they were running.

My opinion is the optimal handling setup would be the same sized wheel tire combo all the way around. Not to say that you couldn't configure the suspension to work with staggered tires.

FWIW.

[Mr Twisty]

Originally Posted by Jordan

Mike,

I'd have to disagree with this statement. If you engineer the suspension correctly to work with the Factory stagger you can and will correct the understeer. We've taken the factory wheel package with our Coil Overs and Sport Sways and we've got the car very balanced. I don't think someone should have to use a square set-up to achieve great performance results. All of our testing has been done with the Factory package (wheels and tires) and we have enough adjustability built into our system to accommodate different wheel and tire packages.

If someone wants to run 315/335's in the rear and 285/295's in the front they can do that with our set up and they'll have great results.

Kind regards,

What kind of results are you getting? Using only coilovers and sway bars? Driver impressions? Skid-pad numbers? Spill it

[radz28]

Pics' or it didn't happen

[PfadtRacing]

Originally Posted by dms

I have mentioned this many times. the larger the split configured tire you put on, the worse the understeer. The Camaro has a nasty understeer. On a skid pad, your g forces will go down. Just a heads up. a 295 would be a better choice. We also think a 295, with the correct offset, will work in the fronts.

Pedders USA just recieved their Red SS2. Already working with Forgeline.
More on this on a future thread

mike
dms

Originally Posted by GTAHVIT

If I'm not mistaken, I believe the Pedders guys have done exactly what you said, Jordan. Part of the work they did with Hennessy was to get the suspension working correctly with the staggered setup they were running.

My opinion is the optimal handling setup would be the same sized wheel tire combo all the way around. Not to say that you couldn't configure the suspension to work with staggered tires.

FWIW.

Hi GTAHVIT,

That isn't what I'm reading in the above post and I'm simply providing what we've found. If the car is completely stock a square package will help with the balance issues. We've developed a "Balance" Rear Sway Bar that will do the same thing and allow you to retain your factory wheels and/or stagger. If you're spending money on an upgraded suspension package I don't feel like you should have to change wheels and tires to increase performance. Going to a square set up isn't bad but it limits you to the amount of tire or contact patch you can get in the rear to help corner exit and overall grip. What would provide more grip; 295's all the way around or 295's up front and 315's out back? On the C6 Z06 Vette's we run 315's up front 345's in the rear.

I agree the factory suspension package leaves a lot to be desired in terms of balance. I was simply saying we have a package that works with the factory wheel package (245's front and 275's rear) and we don't require a wheel and tire change to increase performance.

When testing we use the factory wheels and tires for a consistant data point; if I did a test with a bone stock Camaro and then added our Coil Overs, Sways and different tires and wheels how much did the suspension improve the performance? Aftermarket wheels and tires will taint the results.

I'm a huge Camaro fan and I've had them my entire life. We engineer products specifically for each application and we're enthusiast here to support enthusiast. Please feel free to call or email us anytime with product or set up questions.

Kind regards,

[PfadtRacing]

Originally Posted by MisterCamaro69

What kind of results are you getting? Using only coilovers and sway bars? Driver impressions? Skid-pad numbers? Spill it

I didn't mean to hi jack this thread!

We were running our Inverted Adjustable Coil Overs along with our Sport Sway Bar Package and we picked up 5.5 seconds a lap over the OEM package on a 2.2 mile course with stock wheels and tires. The handling was confidence inspiring with the package.

I will post more data as well shortly. Please feel free to call or email us anytime!

Originally Posted by radz282003

Pics' or it didn't happen

Miller Motorsports Park on track with Inverted Coil Overs and Sport Sways.





Skid Pad Testing at Miller Motorsports Park Sport Sways only.





Just for fun!







I will post more of the results HERE. Please feel free to call or email us anytime! You can also find more of our Testing photo's HERE.

Kind regards,

[PfadtRacing]

Originally Posted by Sales@Hennessey

This is an HRE 890R!

That package looks great! Just need to drop it a bit.

[radz28]

Originally Posted by Jordan

I didn't mean to hi jack this thread!

We were running our Inverted Adjustable Coil Overs along with our Sport Sway Bar Package and we picked up 5.5 seconds a lap over the OEM package on a 2.2 mile course with stock wheels and tires. The handling was confidence inspiring with the package.

I will post more data as well shortly. Please feel free to call or email us anytime!



Miller Motorsports Park on track with Inverted Coil Overs and Sport Sways.





Skid Pad Testing at Miller Motorsports Park Sport Sways only.





Just for fun!







I will post more of the results HERE. Please feel free to call or email us anytime! You can also find more of our Testing photo's HERE.

Kind regards,

Touche

[Tony SS]

so the question is......Would it not be a good idea to run 245's in the front and 295, 305, or 315's in the rear?

Tony SS

[Tony SS]

Please provide your thoughts......

[GTAHVIT]

Originally Posted by Jordan

Hi GTAHVIT,

That isn't what I'm reading in the above post and I'm simply providing what we've found. If the car is completely stock a square package will help with the balance issues. We've developed a "Balance" Rear Sway Bar that will do the same thing and allow you to retain your factory wheels and/or stagger. If you're spending money on an upgraded suspension package I don't feel like you should have to change wheels and tires to increase performance. Going to a square set up isn't bad but it limits you to the amount of tire or contact patch you can get in the rear to help corner exit and overall grip. What would provide more grip; 295's all the way around or 295's up front and 315's out back? On the C6 Z06 Vette's we run 315's up front 345's in the rear.

I agree the factory suspension package leaves a lot to be desired in terms of balance. I was simply saying we have a package that works with the factory wheel package (245's front and 275's rear) and we don't require a wheel and tire change to increase performance.

When testing we use the factory wheels and tires for a consistant data point; if I did a test with a bone stock Camaro and then added our Coil Overs, Sways and different tires and wheels how much did the suspension improve the performance? Aftermarket wheels and tires will taint the results.

I'm a huge Camaro fan and I've had them my entire life. We engineer products specifically for each application and we're enthusiast here to support enthusiast. Please feel free to call or email us anytime with product or set up questions.

Kind regards,

Jordan,

You are correct, this thread, and Mikes post don't go into detail as to the work they did on the Hennessey car. My guess is you, myself and Mike will all agree on most points made here. No one is saying you should change the wheel and tire set up to get the suspension to work properly.

I was simply trying to explain to you that there is some history on the tuning that pedders did, which you don't seem to be aware of. In the end they were able to tune the Hennessey car to get over 1G on the skid pad with the staggered wheel and tire set up.

So, in the end I believe we are all saying the same thing. I just wanted you to know that Pedders had accomplished similar suspension results as you did where staggered wheels and tires are concerned.

Not putting one vendor ahead of another. I just wanted you to have the entire story.

Respectfully,

Chris

[Tony SS]

James,

Understand you have a 20 x 9 wheel on the front....what size tire are running? 245 or 275?