My Camaro Pedders Coilovers (xa adjustable), w/ PICS

[Mythic]

Looking to keep it modest but with some decent improvements.
Daily driver with some 'fun' time in the twisties
Could I get a general critique?

2SS
GFX (I like them)
Dovetail spoiler
Pedders Track Extreme
2nd set of rear wheels to put 275 all 4 corners
LS Hot Cam
Shorty headers
Cat-back exhaust with X pipe
Maybe a CF driveshaft (sounds pricey)

[PartsGedder]

Originally Posted by Heath1661

i had mine two days before this was even posted so im actually kind of pissed cause i didnt post when i had mine done.

Post the pics any way. Did you get them done in Federicksburg?

[Speed74SS]

Originally Posted by Van

Stance aside...how much better is the handling? Did it do anything to reduce the oversteer?

And DMS -- are you able to use varying spring rates from front to rear?

I never drove my car stock, so I can't tell how much better the handling is over stock. I know that it handles great and it is a blast to drive through the turns. I think DMS can answer the oversteer question better than I can. I don't think there is a lot of oversteer but I'm not an expert either.

[MikeySoft]

Originally Posted by shnomac77

Maybe its just the pics but it seems like there is quite a bit of neg camber? Just an Illusion?

I Agree. It looks like you need to do a front end alignment.

[Info@PeddersUSA.com]

Originally Posted by Van

Stance aside...how much better is the handling? Did it do anything to reduce the oversteer?

And DMS -- are you able to use varying spring rates from front to rear?

With any true coil over, I do not believe you can make a variable coil rate. Now we we do offer additional coil rates front and rear going up and down.

mike
dms

[2SSRS@Gen5diy]

Hi this is the rear pics.

[Van]

Originally Posted by dms

With any true coil over, I do not believe you can make a variable coil rate. Now we we do offer additional coil rates front and rear going up and down.

mike
dms

What I mean is do you allow varying spring rates for the front and rear? Like if I wanted 9 kg in the front and 12 kg in the rear for example?

[Jferrell88]

Originally Posted by 2SSRS

Hi this is the rear pics.

looks great can't wait to see more

[Info@PeddersUSA.com]

Originally Posted by 2SSRS

Hi this is the rear pics.

Wow,

Looks like we obtained the goals you and I have been chatting about.

thanks
mike
dms

[Info@PeddersUSA.com]

Originally Posted by Van

What I mean is do you allow varying spring rates for the front and rear? Like if I wanted 9 kg in the front and 12 kg in the rear for example?

I understand. The answer is yes. We have only a few vehicles that the rates are the same front to rear. The Camaro is not one. The shipped coils for the Camaro are currently 10kg/mm rear and 8kg/mm fronts. We will have coils available that go up and down from these. Now we are going to test, a different configuration on our Pedders Camaro as soon as he is finished with the extensive body and engine mods. We wil try different wheel and tire packages, primarily looking at tire aspect ratio. So to seriously fine tune the Camaro we may offer a alternative set of rear coils and dampers that will go to a 9kg/mm but a higher damping rate. This will work better on those cars with really low aspect ratios and reinforced tire sidewall constructions. The reason being the tire can also contribute to shock and coil ratings. A lower aspect ratio tire will give you a firmer ride, thus requiring less spring rate, but more damping capacity.

I hope this time I answered your question. If not, lets continue the discussion.

thanks
mike
dms

[2SSRS@Gen5diy]

Originally Posted by Jferrell88

looks great can't wait to see more

Friday still need to do the front.

Originally Posted by dms

Wow,

Looks like we obtained the goals you and I have been chatting about.

thanks
mike
dms

Yes sr 632 mm from 697 mm wow drive's fine, Will post more Friday.

[Van]

Originally Posted by dms

I understand. The answer is yes. We have only a few vehicles that the rates are the same front to rear. The Camaro is not one. The shipped coils for the Camaro are currently 10kg/mm rear and 8kg/mm fronts. We will have coils available that go up and down from these. Now we are going to test, a different configuration on our Pedders Camaro as soon as he is finished with the extensive body and engine mods. We wil try different wheel and tire packages, primarily looking at tire aspect ratio. So to seriously fine tune the Camaro we may offer a alternative set of rear coils and dampers that will go to a 9kg/mm but a higher damping rate. This will work better on those cars with really low aspect ratios and reinforced tire sidewall constructions. The reason being the tire can also contribute to shock and coil ratings. A lower aspect ratio tire will give you a firmer ride, thus requiring less spring rate, but more damping capacity.

I hope this time I answered your question. If not, lets continue the discussion.

thanks
mike
dms

You're awesome man. It did. In my opinion suspension and handling upgrades are the number one most important mods because all the power in the world won't help if you can't put it to the ground or keep your car on the road.

I'll be doing the Pedders setup with you eventually, but want to give you guys time to perfect your setups. Looking forward to putting your stuff on the car.

[serge]

Originally Posted by Van

Guys...my EVO's been at -2.3 for more than year and the tires are fine. There's a little more wear on the inner tread, but not drastically than the outside. The car handles great (better than the Vette I just test drove) and has had ZERO adverse effects from the aggressive alignment.

Although every car is different, when you get the alignment done...go to a place that will give you unlimited alignments for a year or something...that way you can dial it in through some trial and error.

Look at the inner side of my Evo's OEM Yoko Advans. The car had coilovers, 25mm sway bar, mild alignment/camber spec. These tires had only 9k miles on them when I took this photo, even though I used to rotate them every 2k miles. My Evo handled like a dream; However, tire wear was devastating. I will use a lot of caution when I install coilovers on my future Camaro.

[Info@PeddersUSA.com]

So what rear cambers are you running on your EVO? Is this a characteristic of this car? I ask because on many vehicles, if you have precise controls of the suspension, you can get away with a very serious amount of cambers. For exhaust. For example, on the JusticePete GTO, we ran nearly 2 degrees of negative camber on the back end. Pete had 30K plus miles of seriously hard driving on his PS2s which had PERFECT wear. Now Pete did not drag race the GTO except maybe 1 or 2 times. But it had hundreds of road track miles on it and tons of 150mph plus runs all over. I have done several GTOs that we set up for road racing with normal tire wear. Drag racing was strickly forbidden, however at these rear camber angles. Now on Petes G8, which is the same design in the suspension system, Pete had 15K on his tires running seriously high negative cambers with coil overs, and a full system. Now Pete did do a sizeable amount of burnouts on the OE 245 19s but the wear on the rear was totally even all the way across.

Now without doing any other suspension work other than coil overs, we now are recommending setting rear cambers to the very conservative -.5 degrees. This is not to preserve the tires, but to further help reduce the serious understeer. We recommend setting the front cambers to -1.0 for agressive street play

mike
dms