BC ER, SPL Install and Adjust

Robert Yuras

You plan on corner weighting the car?

sandersd

Yes, but I want to drive it for a while so I have something to compare it to.

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2014 370Z NISMO -- HKS Hi-Power Exhaust -- Swift Springs -- BC ER Coilovers -- SPL Suspension Components -- Nismo R-Tune Intake -- Seibon BD CF Hood

sandersd

Installed the adjustment extenders that came with the shocks. To mark the place to drill the holes I took a sanding roll bit from my Dremel set, snipped it to an appropriate length and inserted it in the piece that fits over the adjustment knob at the top of the shock.

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Installed the cap on the shock, then bolted the shock into place. The pointed piece was just long enough to dent the underside of the plastic trim so I could see where to drill.

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I used a 1/4" bit to drill the hole.

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The hole is just big enough to fit the extender shaft and tube through. I trimmed off excess length so they would clear the hatch by about an inch.

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2014 370Z NISMO -- HKS Hi-Power Exhaust -- Swift Springs -- BC ER Coilovers -- SPL Suspension Components -- Nismo R-Tune Intake -- Seibon BD CF Hood

GSS138

Think twice before you corner balance it, kind of a waste of money at least in some people's opinions unless you have replaced all of your compliance bushings. I know a few guys in formula D that say it is a complete waste of time and money to do it on a car that has compliance bushings in it still. They told me that if you have the ride heights to the millimeter, you are as corner balanced as you are going to get. This was sort of surprising to me but they swore by it. Told me that even if I got corner balanced, as soon as I took a turn it wouldn't be corner balanced anymore.

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Current Mods: Vorpal Weapon +5.

Robert Yuras

Sorry, but I disagree 100% - ride height has nothing to do with corner weighting. Ride height is certainly important, but its only the base of the foundation for weighting. If I came and put a 200lb weight on the passenger seat of your car, you'd hardly see a ride height change. However, you'd see a corner weight change. In fact, I could shift that 200lbs all over the car and you'd hardly see a ride height change. The 200lbs would make a dramatic corner weight and cross weight difference though.

Of course you aren't corner balanced through a turn, the car is turning and throwing weight all over the place. However, when the car comes back to neutral, it better be back to normal - otherwise you've done something very wrong.

Sorry, but there is not logic in that "formula D" answer, much like the series itself.

GSS138

I was skeptical about it myself at first but the more I think about what he said the more sense it makes.

The guy sets up, sponsors, and is a crew chief on a professional race cars that have won and are competitive at a number of different levels, so I would put a lot of weight in what he told me.

Specifically he said ballast the weight like you mentioned, set the ride height, you are done. I am not personally sure how that accounts for front to back, it definitely does not account for cross. But his point is that even if you balance it perfectly, because of the soft subframe and knuckle/control bushings, it is going to go out of whack almost instantly. He showed me our OEM bushings, they are very soft, you can depress them with your finger. I had a hard time believing it myself but the more I think about, the more I think he is right.

And I am no fan of formula D, I just go to his shop for tire mounting and to shoot the breeze. Like Formula D or not those guys know more about setting up a car than probably anyone.

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Current Mods: Vorpal Weapon +5.