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Konis are here!!!!

Old Apr 12, 2004 | 09:22 PM
  #101  
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Thank You JHanna:
Your post was very clear.
I understood every step of the process.
Now Koni's Struts full soft in front, with a change to previously tested G35C shocks in the rear soon. This gives you the level of comfort you were seeking. This is what Boomer is looking for.

For my test, I'll break in the Koni's for about 2000 - 3000 miles of freeway driving. My car is sprung at a higher rate than stock, and has Hotchkis sway bars. The car has no roll in any turns. Front sways are 50-60% over stock. The front Koni's don't feel like the Strut is pounding up through the dash board like stock.

The rear Koni's are not as harsh as stock, yet with the rear sways at softest, 50-60% over stock, I've experienced a lateral throw of the head to the out side of the turn. Admitidly too fast of a right hand turn, and I was on the throttle at the apex. ( the street I was entering had drain on the exit of the turn. ) The car held the turn fine, my neck didn't Ha! Lower back NOT suffering.

I have noticed I can no longer kick the rear of the car out in a turn... So the rear shocks have reduced the understeer.
The car does not bounce at these speeds. And the interior noise is reduced. At slower speeds on bad roads the rear is still harsh, but the fronts are so much better. Druming has decreased in the front, and is about the same in the back. I only have 230 miles on the Koni's.

Highway: some jitter at 80 to 90. Then the car settles down with some rear view mirror shake. But not as bad as stock rears.

So, as you have said - Koni fronts with a more compliant rear shock as the G35C - You may have found the best combination for daily driving and general cruising.

We have one other test mule for the Koni's. Eric Hu has removed Eibach Pro's and installed Koni's with Stock Springs. His tires have moderate feathering. Which we will measure. And will take readings every 1000 miles. His early reports are he likes the car much better, and has no bounce on some of the freeways he uses daily. The car is compleatly stock, save the Koni's.

Perhaps we will trade cars for a day. I drive agressive, Eric likes to cruise. We should learn a lot from swaping cars.

Cheers Amy -




Originally posted by Jhanna
To all in search of a more compliant street ride:
About 4 months ago - I installed a set of rear shocks from the Infinity Coupe { about the same purchase price as Koni }. It gave me a very favorable result - eliminated the bounce coming from that end and was very compliant.
I purchased a set of Koni's and installed the front pair about 3 wks ago. Set on full soft - it gives the ride compliance I've been looking for.
I then installed the rear Koni's. The ride was much stiffer initially and has softened considerably after about 500 miles. It is set on full soft and while it has solved most of the bounce problem, it is still stiffer than the Infinity Coupe shocks - but not as stiff as the stock shocks.
I will be going back to using the Infinity Coupe shocks on the rear in combination with the Koni's on the front. This gives me a very satisfactory ride on all surfaces.
I will keep the rear Koni's handy if I ever feel the need to track or autocross again and need the adjustability.
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Old Apr 12, 2004 | 09:47 PM
  #102  
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Originally posted by Jhanna
To all in search of a more compliant street ride:
About 4 months ago - I installed a set of rear shocks from the Infinity Coupe { about the same purchase price as Koni }. It gave me a very favorable result - eliminated the bounce coming from that end and was very compliant.
I purchased a set of Koni's and installed the front pair about 3 wks ago. Set on full soft - it gives the ride compliance I've been looking for.
I then installed the rear Koni's. The ride was much stiffer initially and has softened considerably after about 500 miles. It is set on full soft and while it has solved most of the bounce problem, it is still stiffer than the Infinity Coupe shocks - but not as stiff as the stock shocks.
I will be going back to using the Infinity Coupe shocks on the rear in combination with the Koni's on the front. This gives me a very satisfactory ride on all surfaces.
I will keep the rear Koni's handy if I ever feel the need to track or autocross again and need the adjustability.
Very informative post. My question now is: can you buy Konis only for the front?

Just found the rear shock for the G35 coupe online for 108 ea.

Last edited by ZZtopp; Apr 12, 2004 at 09:51 PM.
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Old Apr 12, 2004 | 09:52 PM
  #103  
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Originally posted by ZZtopp
Very informative post. My question now is: can you buy Konis only for the front?
Can be done..

P.M. Me

Cheers Amy -
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Old Apr 13, 2004 | 02:53 AM
  #104  
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Personally I don't plan to mix & match shocks. Koni knows alot more about the technology than I ever will. I'll stick with their design. FWIW I owned a S2000 that was as bad or worse over the concrete sectioned highway. Most of not all firm riding cars will not be happy over that type of road. My problem is over asphalt secondary roads with ripples in them. I expect the Konis to fix most if not all of this problem and give better handling to boot. I know BJ & David from Sport Z have added Eibachs to improve the ride further. I hope I don't have to do this as I'd rather not drop the car for fear of dragging the front end. Already happened once at stock height......

Last edited by jmark; Apr 13, 2004 at 02:55 AM.
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Old Apr 13, 2004 | 04:07 AM
  #105  
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Originally posted by AmyCroft
Thank You JHanna:
Your post was very clear.
I understood every step of the process.
Now Koni's Struts full soft in front, with a change to previously tested G35C shocks in the rear soon. This gives you the level of comfort you were seeking. This is what Boomer is looking for.

For my test, I'll break in the Koni's for about 2000 - 3000 miles of freeway driving. My car is sprung at a higher rate than stock, and has Hotchkis sway bars. The car has no roll in any turns. Front sways are 50-60% over stock. The front Koni's don't feel like the Strut is pounding up through the dash board like stock.

The rear Koni's are not as harsh as stock, yet with the rear sways at softest, 50-60% over stock, I've experienced a lateral throw of the head to the out side of the turn. Admitidly too fast of a right hand turn, and I was on the throttle at the apex. ( the street I was entering had drain on the exit of the turn. ) The car held the turn fine, my neck didn't Ha! Lower back NOT suffering.

I have noticed I can no longer kick the rear of the car out in a turn... So the rear shocks have reduced the understeer.
The car does not bounce at these speeds. And the interior noise is reduced. At slower speeds on bad roads the rear is still harsh, but the fronts are so much better. Druming has decreased in the front, and is about the same in the back. I only have 230 miles on the Koni's.

Highway: some jitter at 80 to 90. Then the car settles down with some rear view mirror shake. But not as bad as stock rears.

So, as you have said - Koni fronts with a more compliant rear shock as the G35C - You may have found the best combination for daily driving and general cruising.

We have one other test mule for the Koni's. Eric Hu has removed Eibach Pro's and installed Koni's with Stock Springs. His tires have moderate feathering. Which we will measure. And will take readings every 1000 miles. His early reports are he likes the car much better, and has no bounce on some of the freeways he uses daily. The car is compleatly stock, save the Koni's.

Perhaps we will trade cars for a day. I drive agressive, Eric likes to cruise. We should learn a lot from swaping cars.

Cheers Amy -
Although reduced, the bouncing on one of the highways I travel on a daily basis is still very much there. Do you think that increasing the firmness on the front struts will reduce it further?
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Old Apr 13, 2004 | 04:20 AM
  #106  
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One thing I've noticed traveling sectioned highways is to stay in the left lane (ie the non truck lane) as much as possible. Road is less rough there.
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Old Apr 13, 2004 | 04:22 AM
  #107  
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Originally posted by AmyCroft
Thank You JHanna:
Your post was very clear.
I understood every step of the process.
Now Koni's Struts full soft in front, with a change to previously tested G35C shocks in the rear soon. This gives you the level of comfort you were seeking. This is what Boomer is looking for.

For my test, I'll break in the Koni's for about 2000 - 3000 miles of freeway driving. My car is sprung at a higher rate than stock, and has Hotchkis sway bars. The car has no roll in any turns. Front sways are 50-60% over stock. The front Koni's don't feel like the Strut is pounding up through the dash board like stock.

The rear Koni's are not as harsh as stock, yet with the rear sways at softest, 50-60% over stock, I've experienced a lateral throw of the head to the out side of the turn. Admitidly too fast of a right hand turn, and I was on the throttle at the apex. ( the street I was entering had drain on the exit of the turn. ) The car held the turn fine, my neck didn't Ha! Lower back NOT suffering.

I have noticed I can no longer kick the rear of the car out in a turn... So the rear shocks have reduced the understeer.
The car does not bounce at these speeds. And the interior noise is reduced. At slower speeds on bad roads the rear is still harsh, but the fronts are so much better. Druming has decreased in the front, and is about the same in the back. I only have 230 miles on the Koni's.

Highway: some jitter at 80 to 90. Then the car settles down with some rear view mirror shake. But not as bad as stock rears.

So, as you have said - Koni fronts with a more compliant rear shock as the G35C - You may have found the best combination for daily driving and general cruising.

We have one other test mule for the Koni's. Eric Hu has removed Eibach Pro's and installed Koni's with Stock Springs. His tires have moderate feathering. Which we will measure. And will take readings every 1000 miles. His early reports are he likes the car much better, and has no bounce on some of the freeways he uses daily. The car is compleatly stock, save the Koni's.

Perhaps we will trade cars for a day. I drive agressive, Eric likes to cruise. We should learn a lot from swaping cars.

Cheers Amy -
Amy,
I am curious to hear Eric's take since he is running the stock springs with the Konis as I will be.
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Old Apr 13, 2004 | 06:53 AM
  #108  
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Originally posted by jmark
Amy,
I am curious to hear Eric's take since he is running the stock springs with the Konis as I will be.
Is Eric running the OE tires, too? Also, I think I will need several hundred miles before I think I need or don't need something more than adding the Konis.
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Old Apr 13, 2004 | 03:55 PM
  #109  
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Originally posted by Boomer
Is Eric running the OE tires, too? Also, I think I will need several hundred miles before I think I need or don't need something more than adding the Konis.
You did read about the TSB that extends the tire warranty on OE tires if you have all stock parts. Starts April 12, 2004 and you have to have only Nissan parts or stock tire size changes. My A/Ss are OE sizes, but the Konis are excluded, I would need to re-install the OE shocks. Their procedures are just what several of us have done already, so the "fix" is worthless to us and the Konis are a signicant upgrade and I wouldn't go backwards to get a few pro-rated bucks. All they are offering is new tires and a monitoring of the wear. I'm already doing that with my tech who installed the Konis. I will return to my dealer for an AFTER check to complement the BEFORE for my records, they may do it gratis, being a good operation. The rest of you that haven't installed your Konis yet may want to take advantage, then put on your new shocks.

If I believed in conspiracy theory, I DO, I DO! I would say their timing is right on target. Solypcists of the world, unite! It took them 8 months to issue this TSB, TARGETING EACH PROBLEM CAR INDIVIDUALLY? We suggested it that long ago on this site. It will help the new buyers and our 03's resale value, so its a good thing in the end, but its lame from my perspective.

Boomer babble

Last edited by Boomer; Apr 13, 2004 at 03:58 PM.
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Old Apr 13, 2004 | 09:45 PM
  #110  
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Default Wow Boomer - I see..

Originally posted by Boomer
You did read about the TSB that extends the tire warranty on OE tires if you have all stock parts. Starts April 12, 2004 and you have to have only Nissan parts or stock tire size changes. My A/Ss are OE sizes, but the Konis are excluded, I would need to re-install the OE shocks. Their procedures are just what several of us have done already, so the "fix" is worthless to us and the Konis are a signicant upgrade and I wouldn't go backwards to get a few pro-rated bucks. All they are offering is new tires and a monitoring of the wear. I'm already doing that with my tech who installed the Konis. I will return to my dealer for an AFTER check to complement the BEFORE for my records, they may do it gratis, being a good operation. The rest of you that haven't installed your Konis yet may want to take advantage, then put on your new shocks.

If I believed in conspiracy theory, I DO, I DO! I would say their timing is right on target. Solypcists of the world, unite! It took them 8 months to issue this TSB, TARGETING EACH PROBLEM CAR INDIVIDUALLY? We suggested it that long ago on this site. It will help the new buyers and our 03's resale value, so its a good thing in the end, but its lame from my perspective.

Boomer babble
I see what you mean.. It was a good thing...Most are stock suspension and Tires.. Oh yeah, Eric has his own stock tires. And adding new shocks can't be considered a suspension change.

( Eric - Works for a large Japanese Car Company - and thought the issue through... )

Yes at 9000 Miles his tires are feathered and Noisy.. But he doesn't bounce any more... He need to put some miles on the Koni's to break them in.. Then he should get tires for the life of the car.. Ha !

Cheers Amy -
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Old Apr 13, 2004 | 09:52 PM
  #111  
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Originally posted by Mr. Motion
Although reduced, the bouncing on one of the highways I travel on a daily basis is still very much there. Do you think that increasing the firmness on the front struts will reduce it further?
Mr. Motion..

I'm not sure.. But try adjusting to middle position - some weekend - Go back to Soft - then Go full Firm..

Give us your results... -

JMark Wrote:
Personally I don't plan to mix & match shocks. Koni knows alot more about the technology than I ever will. I'll stick with their design. FWIW I owned a S2000 that was as bad or worse over the concrete sectioned highway. Most of not all firm riding cars will not be happy over that type of road. My problem is over asphalt secondary roads with ripples in them. I expect the Konis to fix most if not all of this problem and give better handling to boot. I know BJ & David from Sport Z have added Eibachs to improve the ride further. I hope I don't have to do this as I'd rather not drop the car for fear of dragging the front end. Already happened once at stock height

Humm.. I'd keep the Suspension stock - until NNA runs out of tires.

Then Hotchkis rather than Eibach.. -

Under new TSB - I'm out of spec.

Cheers Amy -
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Old Apr 14, 2004 | 03:03 AM
  #112  
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Amy,

I don't plan to change anything but the crappy OEM shocks to Koni and add 350Evo sways. Are the hotchkis springs progressive?
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Old Apr 14, 2004 | 12:31 PM
  #113  
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Default Re: Ran Thunderhill in Northern cali with Koni's

Originally posted by C Ray Z
Oh man what an improvement. The porposing that I felt at my first HPDE course at Sears is history.

I am so excited with the improved handeling. I ran 2:28's around this almost three mile course. This was only my second day on a road course.

I am running the stock springs EVO front on medium stock rear sway, Koni's set on medium new allignment with "0" setting on the front. Rear with 2 degrees negative and "0" toe.

Tires 265x35 Yoko and 295x35 Yoko ran very well. Some overheating and rolled rubber. Brakes got hot and I had to baby them a bit but no fade.

I took photos but I will have to add them Tommorrow.

We had four 30 minute sessions. I had a blast and believe me the EVO sways and Koni combination make this a very competative car. The S2k were passed easily.


C Ray Z,
How's the car on the street as far as bounce and handling? I plan to run the Konis + 350Evo sways + OEM springs. Make sure you get the new front sway bar bushings when BJ gets them in. Last time I asked he said they were due in about 4 weeks.
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Old Apr 14, 2004 | 12:34 PM
  #114  
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Originally posted by Redfoot
Yep, going to drive it for a while on stock springs, until I get camber adjusting parts for the front and back. No, that's just a paint chip (Koni quality packaging) the adjustment is way up top. See photo. You got to be carefull to make sure this area will face out the side when your tourqing down the nut on top before its installed.
Redfoot,
How's the Z with the Konis & stock springs?
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Old Apr 14, 2004 | 12:36 PM
  #115  
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Default Re: Re: Ran Thunderhill in Northern cali with Koni's

Originally posted by jmark
C Ray Z,
How's the car on the street as far as bounce and handling? I plan to run the Konis + 350Evo sways + OEM springs. Make sure you get the new front sway bar bushings when BJ gets them in. Last time I asked he said they were due in about 4 weeks.
Street driving is very good. You will still get a bounce if the pavment is uneven. I rode the freeways from SF bay to Sacramento to Thunderhill and the ride was very comfortable at medium setting. Total distance was 400 miles plus the one track day. I think this is a real upgrade and now a very well balanced car for street and track use.
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Old Apr 14, 2004 | 12:45 PM
  #116  
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Default Re: Re: Re: Ran Thunderhill in Northern cali with Koni's

Originally posted by C Ray Z
Street driving is very good. You will still get a bounce if the pavment is uneven. I rode the freeways from SF bay to Sacramento to Thunderhill and the ride was very comfortable at medium setting. Total distance was 400 miles plus the one track day. I think this is a real upgrade and now a very well balanced car for street and track use.
Thanks. That's what I wanted to hear!
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Old Apr 14, 2004 | 01:02 PM
  #117  
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Jmark
Its still up on stands. gotta reconnect all the coolant hoses, refill the cooling system, top off the steering fluid, throw on some tires, tweek the strut bar & finish my taxes. So it will hit the road friday at the latest & on Saturday I'm going to Gingerman raceway, unfortunatley their talking rain Saturday.

and thats assuming everything I've done to it in the last month works properly....
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Old Apr 14, 2004 | 01:32 PM
  #118  
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Those of you in socal with this new setup should come on out to WillowSprings raceway May 1-2nd. It's a nice high and low speed course with a few heavy braking areas to evaluate pitch, dive and roll. Go to: nasaproracing.com to sign up. Hope to see you there!
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Old Apr 14, 2004 | 09:06 PM
  #119  
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I'm enjoying reading all the testing you folks are doing with your suspensions...One question:

The revised 2004.5 euro set-up - 1) Is it really different and 2) if so what is different, and can the parts be retro-fitted to the 2003 Zs.

Dave
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Old Apr 14, 2004 | 10:24 PM
  #120  
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Originally posted by Superfly84zx
I'm enjoying reading all the testing you folks are doing with your suspensions...One question:

The revised 2004.5 euro set-up - 1) Is it really different and 2) if so what is different, and can the parts be retro-fitted to the 2003 Zs.

Dave
Yes, and, no. A source reported the upgraded parts are not compatible with the 03s and early 04s. Sounds like the cheapest way to get a better ride, I only said ride, is puting on G35 Coupe shocks. Handling would be a separate issue.

The Konis are wearing in nicely, the ride is definitely better on most surfaces that don't look like craters on the Moon; there its just a bit less compression and the car isn't beating me up like it was before. I only drove it once or twice a week for a couple of months while I waited. There's almost no pitching from side to side on uneven ground and that is new and very welcome. On good roads the ride is very smooth and very controlled, especially as it becomes warmer. Some things will stay as they were, regardless; the cold plays havoc with the high performance, low profile tires. Several miles are needed to warm them up, unless you want to do the race car weave for a few minutes, hopefully not attracting the cops.

The best thing is to ride over a rough surface and not leave your butt hanging in the air as before. That makes the change truly worthwhile.
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