import111's 370Z

import111 · 05-26-2009, 11:03 PM

Wow, if those rates are correct then the BC BR series coilovers along with many others are using stock rear rates with very stiffly damped struts. For the amount of body roll and brake dive the stock 370Z has, I thought the stock rates were much lower, like in the 200's.

NissanZ46 · 08-07-2009, 04:21 AM

Quote:

Originally Posted by import111

Wow, if those rates are correct then the BC BR series coilovers along with many others are using stock rear rates with very stiffly damped struts. For the amount of body roll and brake dive the stock 370Z has, I thought the stock rates were much lower, like in the 200's.

Mate, the car weighs 1450kg.

Half on the front, half on the rear.

This rough calculation leaves you with 360kg or so per corner. Imagine the g force in or the bumps - if these springs are 4kg/mm the car would hit the bump stops coming out of the driveaway hehehe.

I'm actually even surprised that these springs are still so low - 8kg/mm is comparable to a sportsbike springs - and the car weighs much much more.

If you want to fight body-roll get stiffer anti-roll bar. Do not fight the roll with stiffer suspension units, they will just make the ride harsh and skip over bumps in corners.

travisjb · 05-26-2009, 11:53 PM

Looks great ! Need you to come up to phoenix for the next nasa event so we can have two on the track at once !

import111 · 05-27-2009, 12:18 AM

I am with Proautosport, not NASA. Still glad to have so many 370Z's in Arizona. Hopefully a lot of them will be at both NASA and Proautosport events.

Quote:

Originally Posted by travisjb

Looks great ! Need you to come up to phoenix for the next nasa event so we can have two on the track at once !

travisjb · 05-27-2009, 02:04 AM

I may go to an upcoming proauto event at FIR... maybe i'll see you there

import111 · 06-08-2009, 01:14 AM

Got to push the Z hard for lots of corners on a mountain road today for the 1 time ever. Overall I am very impressed. Was a very fun drive and the car did very well.

Oil temp got up to 260 and stayed there. Temp dropped from 85 to 67 from bottom of the mountain to the top and I was not able to push hard for long periods of time. Maybe 60 seconds of hard driving at a time before catching traffic, though I kept the rpms up above 4k most of the time. I was glad that I did not hit the limiter thing due to oil getting too hot.

The brakes were amazing. Better than my modded STi brakes were I think. ABS also seems to not kick in very hard even when making the tires squeal a little bit. When I put stickier 265's up front the braking will be even better yet.

The BC BR series coilovers worked very well also. They also help with the braking keeping brake dive in check. Body roll is reduced greatly over stock and the car just felt very easy to control in the corners.

I feel the car needs more power. Probably because I am use to 308wtrq that my old STi had, but I think another 50whp/wtrq would make this car such a great drivers car. I am hoping that HFC's and catback exhaust help out the power feel in the near future.

NissanZ46 · 08-07-2009, 04:24 AM

Quote:

Originally Posted by import111

Got to push the Z hard for lots of corners on a mountain road today for the 1 time ever. Overall I am very impressed. Was a very fun drive and the car did very well.

Oil temp got up to 260 and stayed there. Temp dropped from 85 to 67 from bottom of the mountain to the top and I was not able to push hard for long periods of time. Maybe 60 seconds of hard driving at a time before catching traffic, though I kept the rpms up above 4k most of the time. I was glad that I did not hit the limiter thing due to oil getting too hot.

The brakes were amazing. Better than my modded STi brakes were I think. ABS also seems to not kick in very hard even when making the tires squeal a little bit. When I put stickier 265's up front the braking will be even better yet.

The BC BR series coilovers worked very well also. They also help with the braking keeping brake dive in check. Body roll is reduced greatly over stock and the car just felt very easy to control in the corners.

I feel the car needs more power. Probably because I am use to 308wtrq that my old STi had, but I think another 50whp/wtrq would make this car such a great drivers car. I am hoping that HFC's and catback exhaust help out the power feel in the near future.

How hot was it outside when your oil went to 260F?

Makes me think the oil cooler, or a few, would be agood addition for people in warmer climates.

import111 · 06-09-2009, 11:15 PM

Newer pics.

AK370Z · 06-09-2009, 11:25 PM

/\/\/\/\ Would've been a great pic if he pushed his head back a little

LOVE those two pics! Blue looks beautiful as usual.

Looks like a great turnout!

import111 · 08-07-2009, 12:01 AM

Updated the mods list. Got my Berk HFC's and Fast Intentions catback installed this week.

INSURANCE101 · 08-07-2009, 12:27 AM

congrats on the whip, looks great in any color.

NissanZ46 · 08-07-2009, 04:12 AM

So your front is 10kg/mm, and rear 8kg/mm - is this correct?

SO you reckon even this setup feels stiffer than the OEM setup - would than be with full hard on the compression dampening, or have you tried these springs with full soft and just to see how the springs feel.

I love the stance, looks great.

NissanZ46 · 08-07-2009, 04:24 AM

For a guide, Nisom 370Z suspension, rough guide:
The damping on the Nismo 370Z is much more aggressive, too, with 40 percent firmer dampers up front and a huge 140 percent increase in the back. Roll stiffness is up 15 percent, too. So, yeah, you're going to notice something's up as soon as you get into the Nismo Z.

Spring rates are 15 percent higher than the regular 370Z in front and 10 percent higher in the rear.

import111 · 09-25-2009, 10:06 PM

Carbotech XP10 front and rear pads ordered. Just need an oil cooler and I will be ready for the track day Oct. 31st.

dcrew1x · 09-26-2009, 09:48 AM

Looking good and nice mods!

05-26-2009, 11:53 PM	#3 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Looks great ! Need you to come up to phoenix for the next nasa event so we can have two on the track at once ! __________________ 2009 370Z #104 For Sale

05-27-2009, 02:04 AM	#5 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	I may go to an upcoming proauto event at FIR... maybe i'll see you there __________________ 2009 370Z #104 For Sale

06-09-2009, 11:25 PM	#9 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	/\/\/\/\ Would've been a great pic if he pushed his head back a little LOVE those two pics! Blue looks beautiful as usual. Looks like a great turnout! __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

09-26-2009, 09:48 AM	#15 (permalink)
dcrew1x Track Member Join Date: Jun 2009 Location: SoCal Posts: 821 Drives: Graphite Bullet Rep Power: 370	Looking good and nice mods! __________________ 2009 PG 6MT Sports Stillen Gen3 CAI \| Stillen CBE \| AMS Short Shifter \| Nismo Brace Kit

05-26-2009, 11:03 PM	#1 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 192	Wow, if those rates are correct then the BC BR series coilovers along with many others are using stock rear rates with very stiffly damped struts. For the amount of body roll and brake dive the stock 370Z has, I thought the stock rates were much lower, like in the 200's.

06-08-2009, 01:14 AM	#6 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 192	Got to push the Z hard for lots of corners on a mountain road today for the 1 time ever. Overall I am very impressed. Was a very fun drive and the car did very well. Oil temp got up to 260 and stayed there. Temp dropped from 85 to 67 from bottom of the mountain to the top and I was not able to push hard for long periods of time. Maybe 60 seconds of hard driving at a time before catching traffic, though I kept the rpms up above 4k most of the time. I was glad that I did not hit the limiter thing due to oil getting too hot. The brakes were amazing. Better than my modded STi brakes were I think. ABS also seems to not kick in very hard even when making the tires squeal a little bit. When I put stickier 265's up front the braking will be even better yet. The BC BR series coilovers worked very well also. They also help with the braking keeping brake dive in check. Body roll is reduced greatly over stock and the car just felt very easy to control in the corners. I feel the car needs more power. Probably because I am use to 308wtrq that my old STi had, but I think another 50whp/wtrq would make this car such a great drivers car. I am hoping that HFC's and catback exhaust help out the power feel in the near future.

06-09-2009, 11:15 PM	#8 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 192	Newer pics.

08-07-2009, 12:01 AM	#10 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 192	Updated the mods list. Got my Berk HFC's and Fast Intentions catback installed this week.

08-07-2009, 12:27 AM	#11 (permalink)
INSURANCE101 Base Member Join Date: Jun 2009 Location: palm beach, FL Posts: 182 Drives: susp. dl untill sept Rep Power: 17	congrats on the whip, looks great in any color.

08-07-2009, 04:12 AM	#12 (permalink)
NissanZ46 Base Member Join Date: May 2009 Location: house Posts: 62 Drives: 2011 Nissan 370Z Rep Power: 17	So your front is 10kg/mm, and rear 8kg/mm - is this correct? SO you reckon even this setup feels stiffer than the OEM setup - would than be with full hard on the compression dampening, or have you tried these springs with full soft and just to see how the springs feel. I love the stance, looks great.

08-07-2009, 04:24 AM	#13 (permalink)
NissanZ46 Base Member Join Date: May 2009 Location: house Posts: 62 Drives: 2011 Nissan 370Z Rep Power: 17	For a guide, Nisom 370Z suspension, rough guide: The damping on the Nismo 370Z is much more aggressive, too, with 40 percent firmer dampers up front and a huge 140 percent increase in the back. Roll stiffness is up 15 percent, too. So, yeah, you're going to notice something's up as soon as you get into the Nismo Z. Spring rates are 15 percent higher than the regular 370Z in front and 10 percent higher in the rear.

09-25-2009, 10:06 PM	#14 (permalink)
import111 Track Member Join Date: Feb 2009 Location: Tucson, AZ. Posts: 622 Drives: 09 Nissan 370Z Rep Power: 192	Carbotech XP10 front and rear pads ordered. Just need an oil cooler and I will be ready for the track day Oct. 31st.