Autocrossing my C5Z on the new Aldan American Coilovers
#41
Seems like a good time for my Nationals re-cap. First things first, I pushed too hard and overdrove spots on both courses. The Car behaved beautifully, the only thing I would do different is put new tires on, I've been running the same set of Rival S all year and they had about 80 runs on them. Finished 8th out of 14. I think had I driven to the cars capabilities 3rd would have been possible, even with the basically stock drivetrain. After the Nationals my 76 year old Dad and I dialed the Aldans back to the factory softness settings front and rear and drove the 1800 miles home to San Diego. The Aldans ride beautifully, truly a dual purpose upgrade over shocks. I'm convinced the car both handles better and rides better hands down.
Last edited by Tomswheels; 09-20-2017 at 09:11 PM.
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#42
Racer
Congratulations on your improved handling gentleman, I was curious of any of you have or know of issues with the upper mounting area of the coil covers being damaged over time as a result of running coil covers?
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
#43
Congratulations on your improved handling gentleman, I was curious of any of you have or know of issues with the upper mounting area of the coil covers being damaged over time as a result of running coil covers?
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
#45
Racer
#46
Supporting Vendor
Member Since: Nov 2007
Location: San Jose CA
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St. Jude Donor '11
Congratulations on your improved handling gentleman, I was curious of any of you have or know of issues with the upper mounting area of the coil covers being damaged over time as a result of running coil covers?
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
I have been told a few times that the coil covers will damage the upper frame mounts due to the frame being made out of aluminum, I just want some piece of mind that if I do switch to coil covers the ride will improve and not damage the car in any way.
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#47
Le Mans Master
My 2nd event with the Aldan American Coilovers I turned the front compression and rear rebound up two clicks. I noticed on the 90 mile ride to this Hotchkis NMCA Autocross the ride was definitely firmer, but still much more comfortable than the previous Koni Yellow / Leaf Spring combo. The Car seemed even more settled and felt more controlled under hard braking with the Aldans on this slightly firmer setting. Some Optima level competition in the 70 Cars ran that Saturday included Greg Thurmond's Vette, Jake Rozelle in his C5, and this time the 3100lb C5Z beat that same LS3 2400lb Starion on its last lap, I won Fastest Time of Day for the first time ever.
#48
Burning Brakes
God I wish this setup existed when I was buying my HSD coilovers (very unhappy with this setup personally, so bouncy, unstable...)
#49
So the Rival S I’ve been using all year (80+ runs and one LONG drive back from Lincoln) are at the end of their life. I flipped them backwards and headed out to our local Qualcomm stadium Autocross. The Aldans again performed admirably, Fastest Street Tire lap of the day, 7th in PAX (with the unfriendly CAM-S PAX) out of 150. I’ve been leaving the Aldan American Coil Overs two clicks firmer than Factory the last couple times out, it’s a nice combination of stiff for track but not too stiff on the ride back and forth.
#50
Racer
Last regional Solo of the year on 100+ run burnt RE71Rs
Last regional Solo of the year on 100+ run burnt RE71Rs
Tom,
I have been running my Aldans on the same settings about two clicks stiffer the factory setting and have been doing great on them. My last event on my 275/18's heavily worn 100+ runs RE71R's and still dominated CAM by +3 seconds over the next competitor and top 20 in Pax out of 70+ competitors. Next year on 315/30s I'm hoping to climb the PAX board what I can and compete at a couple Optima OUSCI events along with TireRack Solo Events.
#51
Burning Brakes
Still waiting to see you up north at one of our AAS events. A couple of us are going to try and make it down for Camarillo in December. That all depends on if I get my control arms back, installed and aligned in time.
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Tomswheels (10-17-2017)
#52
Tom,
I have been running my Aldans on the same settings about two clicks stiffer the factory setting and have been doing great on them. My last event on my 275/18's heavily worn 100+ runs RE71R's and still dominated CAM by +3 seconds over the next competitor and top 20 in Pax out of 70+ competitors. Next year on 315/30s I'm hoping to climb the PAX board what I can and compete at a couple Optima OUSCI events along with TireRack Solo Events.
#53
I'm sorry, but what? You only have to go .501 faster on a 60 second course than my STU car to run the same index time. You have unlimited power, whatever chassis mods you want, 100-150lbs less weight available (the 3 STU C5s were 3060-3085 at Nationals, but will probably get lighter over the winter), and unlimited tire. Your PAX is anything but unfriendly...
#54
Matt that’s just it, the PAX is fine for a highly modified car. My Vette has stock engine, stock trans, stock rear end, stock rubber bushings etc. With the exception of Dads spoiler, the Coilovers, and rear Wheels. If I changed those it’s an AS car.
#55
For reference, the car that won CAM-S (was 300 on index) has stock bushings, stock trans, stock gears, leaf springs, 11s front/12s rear, and some extra power.
.838 is appropriate for lightly prepped CAM-S cars. It's way under what it should be for a limit car...
#56
Question
So getting back to the coil overs has anyone run these as a HPDE or TT road race shock? how well do the hold up? do they fade over 20-30 min?
I have tried another manufacturers alum body double adj shock non coil over and they started out good, but faded to useless in 5-10 minutes of hard running.
I am getting ready to change shocks my GM T1's are just about done
and GM has discontinued the shocks.
I have tried another manufacturers alum body double adj shock non coil over and they started out good, but faded to useless in 5-10 minutes of hard running.
I am getting ready to change shocks my GM T1's are just about done
and GM has discontinued the shocks.
#57
Burning Brakes
Yeah I hope their durability is good.... I am in Canada... our roads are garbage... the HSD I am not happy with.... bouncy.... only one year of use... were bouncy from the get go.. so sad.....
I wonder if anyone will import these to canada.... it sucks being up north here... our dollar is crap.... and i wish this existed two years ago.... i wish i knew....
I wonder if anyone will import these to canada.... it sucks being up north here... our dollar is crap.... and i wish this existed two years ago.... i wish i knew....
#59
Tech Contributor
So getting back to the coil overs has anyone run these as a HPDE or TT road race shock? how well do the hold up? do they fade over 20-30 min?
I have tried another manufacturers alum body double adj shock non coil over and they started out good, but faded to useless in 5-10 minutes of hard running.
I am getting ready to change shocks my GM T1's are just about done
and GM has discontinued the shocks.
I have tried another manufacturers alum body double adj shock non coil over and they started out good, but faded to useless in 5-10 minutes of hard running.
I am getting ready to change shocks my GM T1's are just about done
and GM has discontinued the shocks.
I've heard of shocks fading on Jeeps and Trucks when guys go 4-wheeling but can't ever recall seeing anyone mention it here. It takes a heck of a lot to heat up a shock enough on a road course during a 20 minute session for it to fade.
#60
Instructor
Question for the OP. Did you find and purchases these for full retail?
The complete post is written like someone received a product for a discount or free as long as they review it online.
Skeptical as I use to "beta" test and write this type of stuff for a period of time. 10+ years ago when I worked in the performance industry.
Matt
The complete post is written like someone received a product for a discount or free as long as they review it online.
Skeptical as I use to "beta" test and write this type of stuff for a period of time. 10+ years ago when I worked in the performance industry.
Matt