Review: Bilstein PSS10 Coil Over Kit
05-05-2009, 07:00 AM
#41
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As a test, I can confirm that the front will adjust to +.4" to oem, though I will confirm the rear 1" min.
The Pss10 is also valved differently vs the Pss9. John at Bilstein wasn't able to provided dyno plots, but he did send me a spread sheet which did show some basic valving differances. Their chart only listed 3 speeds, 2ips, 10ips and 20ips (comverted from meter's per second).
full soft front
low speed rebound -15%
low speed comp +29%
high speed rebound +8%
high speed comp +8%
full soft rear
low speed rebound +19%
low speed comp +62%
high speed rebound +33
high speed com +23%
full stiff front
low speed rebound +10%
low speed comp -2%
high speed rebound+4%
high speed comp-2%
full stiff rear
low speed rebound +42%
low speed comp +25%
high speed rebound +37
high speed comp +10
If you kill the progressive spring setup in the rear, your track experience will be a better one. I'm going to be working on a simple conversion adaptor to allow a 5" ID linear spring to be used with the Bilstein seat.
The Pss10 is also valved differently vs the Pss9. John at Bilstein wasn't able to provided dyno plots, but he did send me a spread sheet which did show some basic valving differances. Their chart only listed 3 speeds, 2ips, 10ips and 20ips (comverted from meter's per second).
full soft front
low speed rebound -15%
low speed comp +29%
high speed rebound +8%
high speed comp +8%
full soft rear
low speed rebound +19%
low speed comp +62%
high speed rebound +33
high speed com +23%
full stiff front
low speed rebound +10%
low speed comp -2%
high speed rebound+4%
high speed comp-2%
full stiff rear
low speed rebound +42%
low speed comp +25%
high speed rebound +37
high speed comp +10
If you kill the progressive spring setup in the rear, your track experience will be a better one. I'm going to be working on a simple conversion adaptor to allow a 5" ID linear spring to be used with the Bilstein seat.
05-05-2009, 08:43 AM
#42
After installing these, I have found that the fronts are signifigantly lower than stock. I have them set at the maximum height that BilStein says they can be adjusted (370 MM) and I have only about 1 finger width of space or less from between the fender and the top of the tire. It probablly dropped it about 1.5 inches or more. The rear dropped about 1 inch as expected.
Something doesn't add up. I hope for your sake one of is wrong. If I am right and you have little to no bump stoke, raise up the front. Your reality isn't supporting bilstein saying you should stop at 370mm.
05-25-2009, 08:17 AM
#43
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So after being on the phone with BilStein Engineering they advised me to raise the fronts up 10 MM. The ride height is perfect and dropped about 1 inch from stock. The issue is that the manual doesn't take into account the increased ride height in stock form on a G35 coupe vs. the 350z. They are revising the manual now to reflect this.
Now that I have everything dialed in properly I simply love this kit. I dropped about 1 inch in the front and about 3/4 inch in the rear. At full ride height in the rear, there was only about 1/2 an inch drop over the stock G35 coupe springs.
This really is a good kit and the ride quality is excellent.
Now that I have everything dialed in properly I simply love this kit. I dropped about 1 inch in the front and about 3/4 inch in the rear. At full ride height in the rear, there was only about 1/2 an inch drop over the stock G35 coupe springs.
This really is a good kit and the ride quality is excellent.
05-26-2009, 11:59 AM
#44
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I am also looking into the same coilover, but you mentioned:
"The body roll was still like stock ( a lot) due to the soft spring rates "
I am a little bit confused. I want to reduce the body roll of my 06 enthu.
should I consider coilover? or something else?
My z is DD, and may go to the track once a year.
Thanks.
"The body roll was still like stock ( a lot) due to the soft spring rates "
I am a little bit confused. I want to reduce the body roll of my 06 enthu.
should I consider coilover? or something else?
My z is DD, and may go to the track once a year.
Thanks.
05-26-2009, 01:02 PM
#46
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I have stillen sway bars on mine set to med/med. I don't have any signifigant body roll per say. That being said the ride is not super stiff on the softest setting but it signifigantly more stiff than stock.
HTH
HTH
05-27-2009, 05:35 AM
#48
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So after being on the phone with BilStein Engineering they advised me to raise the fronts up 10 MM. The ride height is perfect and dropped about 1 inch from stock. The issue is that the manual doesn't take into account the increased ride height in stock form on a G35 coupe vs. the 350z. They are revising the manual now to reflect this.
Now that I have everything dialed in properly I simply love this kit. I dropped about 1 inch in the front and about 3/4 inch in the rear. At full ride height in the rear, there was only about 1/2 an inch drop over the stock G35 coupe springs.
This really is a good kit and the ride quality is excellent.
Now that I have everything dialed in properly I simply love this kit. I dropped about 1 inch in the front and about 3/4 inch in the rear. At full ride height in the rear, there was only about 1/2 an inch drop over the stock G35 coupe springs.
This really is a good kit and the ride quality is excellent.
So at 1” drop on G35 coupe, what is total available shock bump travel, down and up? Is stroke limited by shock bump or spring bind? Thanks
05-29-2009, 08:29 PM
#49
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At a 3/4" drop, I measured avaliable bump travel at 1 1/8" on the fronts and 7/8" in the rear (though the rear does have a really tall bumpstop that has a stepped progressive design). Dropped to -1.5" would mean you only have 3/8" of bump travel in the front and 5/8" rear on a 1" rear drop.
Something doesn't add up. I hope for your sake one of is wrong. If I am right and you have little to no bump stoke, raise up the front. Your reality isn't supporting bilstein saying you should stop at 370mm.
Something doesn't add up. I hope for your sake one of is wrong. If I am right and you have little to no bump stoke, raise up the front. Your reality isn't supporting bilstein saying you should stop at 370mm.
How much bump travel do average coilovers have? Thanks
04-12-2010, 12:26 PM
#58
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Thanks mate, I'd really appreciate that.
Mainly I'm after a diagram of the overall installation - just to get an idea of the assembly order for the rubber bushes etc. I think I've got it worked out but it's not really something I want to leave to guess work. The only instructions I've got are for adjusting the damping - not too helpful!
Mainly I'm after a diagram of the overall installation - just to get an idea of the assembly order for the rubber bushes etc. I think I've got it worked out but it's not really something I want to leave to guess work. The only instructions I've got are for adjusting the damping - not too helpful!
04-12-2010, 01:09 PM
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It's not the Nissan suspension I'm interested in. Thanks though. Essentially I need to know which stock parts I junk and whereabouts the rubber 'washers' bilstein provide as part of the kit are positioned.