New Koni for 240z/260z & 280zx

[peter t]

1 hour ago, TDoherty said:

Hi Peter, 

I simply ordered them, I didn't provide strut part # or anything. 

I have purchased a number of things from them over the years and have always found them to be very prompt with their communication. 

Once recieved 8 they fitted without a problem. 

Cheers Tony 

Same here mate but this time I seem to getting the run around. I have to following up every e-mail after a few days.  A friend has bought a set for his 2+2 with non of these problems. I will wait and see what numbers are on his struts and if they fit or not. 

[peter t]

Good news this morning. The Z store now say they will fit. I think there is confusion re 2+2 and ours being a 260 and theirs a 280.

[AndBir]

Just a heads up to anyone receiving front strut inserts from the 2nd batch of Koni 8641-1031SPORTS from MSA that you will see some differences to the original batch made in 2019 (as shown in this post) : 

#1 : The part number is different and "Not Adjustable" is printed on the label.

MSA indicates that SP1 instead of SPORT reflects that this is a revised version and there was a printing error as "Adjustable" should be shown.

#2 : The base of the front strut insert is different to the original batch due to fitment issues that occurred as mentioned in this topic here : https://www.classiczcars.com/forums/topic/61542-koni-sports-for-classic-zs/?do=findComment&comment=573828 and resulted in the gland nut not being able to be screwed down far enough into the strut.

MSA indicated : "The 1031 SP1 means the first revision to the strut that Koni has done, i.e. SP for sport and 1 for revision 1. This is the change in shape at the bottom of the strut, which helps the strut fit better into a small percentage of 240Z’s that we found had an anomaly from Nissan, and in that less than 10% of cars, they weren’t sitting down properly due to the inner shape of the inside of the strut housing tube. The issue was only on certain early 240Z’s, and this change solved the issue. It does not affect the installation at all on the 90+% of 240Z’s that don’t have the anomaly, and in fact may give you a thread more turn down on the gland nut. "

#3 : On the front strut inserts (1031SP1)  I received the available adjustment is only 1 1/2 turns not the 2 turns that is on the rear inserts (1032SPORT) and is stated in KONI's pictorial instructions.

MSA indicated that KONI advised that the adjustment is only a guide and can be more or less than 2 turns as per the following from MSA :

"On the adjustment turns, we wanted to run this by Koni directly, and even though they are all at the SEMA automotive show, they took a few moments out to answer this question. They agree that the instructions need work, that the parties that put those together tried to make them too generalized and wide covering. They stated that the adjustment should be more clear and say 2 +/-. They said that the actual amount of turning is based on the length of rod needed inside in order to turn the adjuster at the bottom of the cartridge, and that can vary easily by ½ turn based on the specific strut application. They said that the extent of the adjustment is EXACTLY the same as the rear cartridges, just the ratio of turns to go from “lock to lock” is different. They said the only important factor is from side to side, that if one front side was 2 turns and the other front side was 1.5, then it would be a problem. If the rears are approximately 2 turns, and the fronts are approximately 1.5 turns, that is completely correct, and normal. We also apologize for the lack of clear details on the instructions, while Koni states they are working on them, we are hopeful to create our own instructions soon. It is a little unfortunate that this difference is necessary for different configuration struts (front to back or model to model), since racers who are fine-tuning their adjustments will have to do a little bit of math if they want to to turn both the fronts and rears up or down the same amount. But again the end of the turns in either direction is the exact same max adjustment numbers on the fronts vs rears, but the internal differences between the different applications (front and rear in this case) cause the ratio of turns necessary to complete the full adjustment range sweep a bit different."

 

Edited November 4, 2022 by AndBir