Relentless Autosports Coilover package...

Xan

I quoted your post as reference to the standard spring rates, the question was directed at the OP or Scott. Appreciate the response though!

I believe the cases you refer to are people who want to get the suspension tuning just right for the way they race a car on the track. I don't think that's the case here though..

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Kirkster

Thanks for the explanations Scott.

I Did the install last night. All I have to say is REALLY. No REALLY. Did they REALLY have to tighten that 19mm nut to 8 bazillion foot pounds of torque??? The drivers side came off with not much of an issue but the passenger side was a different story all together. I did not have a 1/2" 19mm so I was using the 1/2" to 3/8' adaptor. So I twisted off the head of the first adaptor and cursed a bit before I got out the second adaptor... After I got back from Sears with two new adaptors and a 19mm 1/2 inch socket the REALLY nut yielded to my 4 foot breaker bar...

Total install time minus the trip to Sears was 6 hours and 4 minutes.

With the way I initially set up the coilovers I ended up with a 1/4 inch drop after a drive to initially settle the suspension.

I decided that I wanted a bit more drop so in the morning I got started again. One tool that I found invaluable in adjusting the front shocks was a strap wrench. Without that I would have ended up taking the shock back out of the car, with the strap wrench it was a 15 minute job from the time that the tire came off to the time I finished torquing the last nut...

Total time for the full drop was an hour and 30 minutes including fumbling around time.

I will post up a review once it stops raining here, but I did get a chance to give it the boot up to around 60% before I started sliding a bit more that I wanted to given the wet cold conditions.

Initial review: 35° and drizzling:

The car feels firmer without being jarring. As far as I can tell the skittishness that was present in the stock suspension in curves completely gone. It feels even more planted than stock So far it is money very well spent on Scott's suspension setup for my Roadster.

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Powertrain Warranty voided on 5/14/2011
Mod List:GTM Supercharger,SmartTop module, Oil Cooler, GT-R Start button, Nismo Exhaust, BC Racing ER Coilovers, Backup Camara
For eastwest:

Mozen

Going to chip in here for the hell of it.

I have the same set up on my 370z and although ive not tracked the car ive managed to hit up one auto X while i was back in the states and i love the response, feel, and customization i get with the package. I still dont have them dialed in right but thats due to time and the fact im not around to do anything until Feb 2011

All in all its probably been one of the best investments ive made for the car yet.

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PW 370z | AEM | MISHIMOTO | ARK PERFORMANCE | WHITELINE | NISMO | STILLEN | FORGESTAR | BC RACING | AMS | NON STOP TUNING | CARBONETICS LSD | 4 Point DOM 1.75" SCCA Spec Roll Bar + Harness Bar
CHECK OUT MY BUILD THREAD HERE

corner3garage

any news of a z34 racecar?

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Corner3motorsports.com

Scott @ RA

Umm, uhh... Where did you hear that from??

Kirkster

Well I got to drive it today, still cold but completely dry.

The suspension performs very very well. Areas on my favorite test run that would have unsettled the rear end were soaked up effortlessly. The feel of the suspension is very inspiring and so far I am not feeling anything that I want to change as far as the spring rates or height. I am sure that I will play with the clickers a bit in the near future but the I am happy with the initial settings so far.

The only drawback is that the rears are not going to be easy to adjust due to the fact that there is sheet metal above the rear upper clickers. Since it is in an area where water will be an issue I am not sure about making a hole for the external adjusters.

I did make before and after measurements so I know how far things have settled as well as how much I may want to adjust the suspension later. I just need to get my buddies camber checker to get an idea of the camber imparted by the 1 inch drop. I figure that I will want to get an alignment in a week or so once it is all sorted out.

__________________
Powertrain Warranty voided on 5/14/2011
Mod List:GTM Supercharger,SmartTop module, Oil Cooler, GT-R Start button, Nismo Exhaust, BC Racing ER Coilovers, Backup Camara
For eastwest:

Scott @ RA

That's great... Thanks so much Mozen, Kirkster, as well as gpa7pk, Wes, Ryan, Erick and all the other forum members here who are running a Relentless Autosports custom valved and spec'd set of coilovers for trusting in me and putting your suspension needs completely in my hands.
Glad you all are very pleased with the outcome, hearing this makes it all worth while.

Kirkster

Well it is all settled now.

The suspension settled 2/16ths of an inch in total in the two weeks since I put the coilovers on. It did all the settling in the first week and has not moved in the last week, so I think it is done settling.

I did a final adjustment and the car is lowered 1 inch total in the front and 3/4 of an inch in the rear.

Went out and got an alignment today.
The front camber sits at -1.6° FL and -1.4° FR the caster and toe came back into factory specs. If I get serious about autocrossing this car and the front tires are still wearing on the outside edges, I will get some eccentric delrin bushings made and add a bit more camber to the fronts. I really only want -2.5° up front as a max so I might be able to get some of that by lowering it another half inch.

The rear camber started at -2.8° RL and -2.7° RR which is why I have all that fun wheel spin in the rear right now (that and it is 30°). They were able to get them to -2.3° RL and -2.2° RR. The factory spec is -2.2° max so I am right on the edge there. I ran my 350 at -1.8° on both sides and it was pretty decent. I will have to see how the rear holds up with Hoosier A6 tires and -2.2° rear camber before I go and buy rear camber arms.

The were able to get the Toe and Caster back within factory specs all the way around so it is good there.

The car feels great on the road. Now I just have to wait till spring to see how it feels on the AutoX and local road course. Will also look at corner weighting this winter as I have access to scales.

__________________
Powertrain Warranty voided on 5/14/2011
Mod List:GTM Supercharger,SmartTop module, Oil Cooler, GT-R Start button, Nismo Exhaust, BC Racing ER Coilovers, Backup Camara
For eastwest: