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Old 02-20-2012, 05:38 PM   #1
VanquisherSS
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Pedders Drop Springs

Anybody got these on a set of 22's. I had them put on my car I don't think the front ever really dropped. it sits much higher than the rear of the car.



Dunno if its just in my head or what?
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Old 02-20-2012, 06:46 PM   #2
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It does look like it sits higher. Were the front bushings indexed?
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Old 02-20-2012, 07:00 PM   #3
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Originally Posted by VanquisherSS View Post
Anybody got these on a set of 22's. I had them put on my car I don't think the front ever really dropped. it sits much higher than the rear of the car.



Dunno if its just in my head or what?
We start with ride height measurements Pedders style. Your Camaro should be on a level surface with the wheels straight, the car as empty as new with a 1/4 tank of fuel. Measure this way.



We use mm because it is direct with no fractions. i.e. 660mm on the LF and 663mm on the RF = 3mm difference. If there is a significant side to side variance, turn the car around and measure in as close to the exact same positions all four wheels were in. Some times the surface we measure on looks level, but isn't.

Please post the measurements.
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Old 02-20-2012, 07:04 PM   #4
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Quote:
Originally Posted by JusticePete;4****84
We start with ride height measurements Pedders style. Your Camaro should be on a level surface with the wheels straight, the car as empty as new with a 1/4 tank of fuel. Measure this way.



We use mm because it is direct with no fractions. i.e. 660mm on the LF and 663mm on the RF = 3mm difference. If there is a significant side to side variance, turn the car around and measure in as close to the exact same positions all four wheels were in. Some times the surface we measure on looks level, but isn't.

Please post the measurements.
Thanks! I'll do this tomorrow at work nice and level parking lot there. In your opinion does it look like its sitting too high? I thought the front springs had the most drop. ~1.5"
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Old 02-20-2012, 07:14 PM   #5
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The rear seems a bit low, but pictures can be deceiving and why we measure. Is there anything unusual about your Camaro i.e. You have a gazillion watt rack of amplifiers in the trunk or you replaced the engine with a fluxcapacitor they weighs only 3 pounds OK, end of jokes. Is there anything unusual about your Camaro?
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Old 02-20-2012, 08:42 PM   #6
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The rear seems a bit low, but pictures can be deceiving and why we measure. Is there anything unusual about your Camaro i.e. You have a gazillion watt rack of amplifiers in the trunk or you replaced the engine with a fluxcapacitor they weighs only 3 pounds OK, end of jokes. Is there anything unusual about your Camaro?
Nothing un-usual.....maybe that engine from a f-16 i put in the trunk.....MIB don't touch the red button

But no nothing out of the ordinary really, mixed up the springs for the front/rear, I doubt it. I'm stumped.

I'll be measuring though, anything I should take into account for the 22" wheels. 265/30/22 Fronts, 305/30/22 Rears
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Old 02-20-2012, 08:49 PM   #7
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It does look like it sits higher. Were the front bushings indexed?
I would think so. Had it done at a pedders authorized installer.
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Old 02-20-2012, 09:31 PM   #8
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Originally Posted by VanquisherSS View Post
Nothing un-usual.....maybe that engine from a f-16 i put in the trunk.....MIB don't touch the red button

But no nothing out of the ordinary really, mixed up the springs for the front/rear, I doubt it. I'm stumped.

I'll be measuring though, anything I should take into account for the 22" wheels. 265/30/22 Fronts, 305/30/22 Rears
Because both sizes have a 30% height ratio, your rear tires are 27mm taller, or 13.5mm per sidewall.

265 x 30% = 78mm sidewall height, 78 x 2 = 156mm tire height (minus wheel diameter)

305 x 30% = 91.5mm sidewall height, 91.5 x 2 = 183mm tire height (minus wheel diameter)

183 - 156 = 27mm difference in overall front/rear height

It could be that with less sidewall on top of the wheel, it creates more space between the front tire and wheelwell, giving the perception that the front end is higher when it's actually the same.

Taking a second look at your photo, it looks like if you added about 1/2" of sidewall to your front tires it would look perfect. A 265/35R22 would even things out pretty good.
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Old 02-20-2012, 09:46 PM   #9
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Originally Posted by njdad61 View Post
Because both sizes have a 30% height ratio, your rear tires are 27mm taller, or 13.5mm per sidewall.

265 x 30% = 78mm sidewall height, 78 x 2 = 156mm tire height (minus wheel diameter)

305 x 30% = 91.5mm sidewall height, 91.5 x 2 = 183mm tire height (minus wheel diameter)

183 - 156 = 27mm difference in overall front/rear height

It could be that with less sidewall on top of the wheel, it creates more space between the front tire and wheelwell, giving the perception that the front end is higher when it's actually the same.

Taking a second look at your photo, it looks like if you added about 1/2" of sidewall to your front tires it would look perfect. A 265/35R22 would even things out pretty good.
Thanks! that makes a ton of sense actually. I think your right but i'll measure tomorrow anyway. I guess next is coilovers, but thats after all my go fast mods are done.
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Old 02-20-2012, 09:47 PM   #10
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Quote:
Originally Posted by njdad61 View Post
Because both sizes have a 30% height ratio, your rear tires are 27mm taller, or 13.5mm per sidewall.

265 x 30% = 78mm sidewall height, 78 x 2 = 156mm tire height (minus wheel diameter)

305 x 30% = 91.5mm sidewall height, 91.5 x 2 = 183mm tire height (minus wheel diameter)

183 - 156 = 27mm difference in overall front/rear height

It could be that with less sidewall on top of the wheel, it creates more space between the front tire and wheelwell, giving the perception that the front end is higher when it's actually the same.

Taking a second look at your photo, it looks like if you added about 1/2" of sidewall to your front tires it would look perfect. A 265/35R22 would even things out pretty good.
Whoa! What he said Great post

We are expecting 660mm ride heights with 20s so with 22s (50mm larger wheels) we add 25mm to 660 expecting 685mm. If we have before ride heights I could tell you almost exactly what your ride should be because we could compensate for build tolerance i.e right front 715 on 22s and the left front 710mm. If the new ride height after alignment is still off 5mm it is a pretty fair guess that the variation is in the body work.

We'll get measurements and I should have asked for alignment specs as camber differences creates ride height variations.

My post just isn't as cool without the math














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Old 02-20-2012, 10:10 PM   #11
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Whoa! What he said Great post

We are expecting 660mm ride heights with 20s so with 22s (50mm larger wheels) we add 25mm to 660 expecting 685mm. If we have before ride heights I could tell you almost exactly what your ride should be because we could compensate for build tolerance i.e right front 715 on 22s and the left front 710mm. If the new ride height after alignment is still off 5mm it is a pretty fair guess that the variation is in the body work.

We'll get measurements and I should have asked for alignment specs as camber differences creates ride height variations.

My post just isn't as cool without the math
Got it, I will check it all soon. I'll grab the alignment sheet and post it up if I go home tomorrow to put the power commander in my bike. Car has the pedders alignment kit, Street II, so I think it's properly adjusted, it doesn't try to steer me into the woods when I let go out of the steering wheel lol.

I really should have just got the coilovers during the jingle jangle sale

Thanks a bunch.
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Old 02-20-2012, 10:14 PM   #12
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Got it, I will check it all soon. I'll grab the alignment sheet and post it up if I go home tomorrow to put the power commander in my bike.

I really should have just got the coilovers during the jingle jangle sale

Thanks a bunch.
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Old 02-20-2012, 10:53 PM   #13
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Hmm I always read that 1.5" was too low for the rear and I see that the Pedders are 1.4" but I know many people run these springs. Are there any unseen issues with this, Pete?
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Old 02-20-2012, 10:57 PM   #14
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Hmm I always read that 1.5" was too low for the rear and I see that the Pedders are 1.4" but I know many people run these springs. Are there any unseen issues with this, Pete?
Have not had a single report of any type of issue with strut life and we have had these on customer cars for quite some time.
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