NunoTT Posted May 14 Report Share Posted May 14 Hello. I just acquired a set of weld on coilivers for my 510 from Techno Toy Tuning and I'm now in the process of sending it to a suspension shop to install it in the original struts. If I remember correctly (but correct me if I'm wrong) I will need to shorten both the strut and the shock shaft, but by how much? The instructions say to shorten the strut by 30mm but it says nothing about the shock. Should I also shorten the shocks by 30mm? Any help will he highly appreciated. Thanks in advance! Quote Link to comment
datzenmike Posted May 14 Report Share Posted May 14 Shortening the tube means cutting a section out and welding it together. Or you will need to cut new threads for the gland nut. Couldn't hurt to shorten the strut inside also. The stock ones are oil bath with the strut tube filled with hydraulic oil. Or buy new replacement strut inserts that are shorter. The inserts are self contained and the oil sealed inside. I like the oil bath as you can empty them out and refill with thicker 20W motorcycle front fork oil to renew and firm them up. Another option is to replace the front strut with a 280zx front strut. It's already almost 3cm shorter but you get larger wheel bearings, a massive caliper/pads and a larger vented rotor. You probably will need 14" wheels to clear them. Probably not available there. Quote Link to comment
Stoffregen Motorsports Posted May 15 Report Share Posted May 15 Yes, when shortening the strut, you need new shorter inserts (shocks) too. We used to use a large pipe cutter, like for plumbing, to cut the struts. It gave a very straight cut which made it easier to weld back together. I recently looked into buying a large pipe cutter for my own shop, and they are not cheap. Quote Link to comment
banzai510(hainz) Posted May 15 Report Share Posted May 15 (edited) This is my Datsun 510 stock strut. Jeff Hino(Icehouse) cut the stock strut perch off and welded the new perch at the same location as I use 15x7 +25mm wheels. I dont not want the perch to be lower as it would hit the tire. Then Jeff said get a 7in tall spring. Most springs are 8 inch. Luck I got the 7 and I still had to dial it DOWN all the threads to get the look I want. My shocks are for a 280zx 79-81.. some save VW Golf shock will work also. You will have to cut a section of the tube out Edited May 15 by banzai510(hainz) 1 Quote Link to comment
shlammed Posted July 11 Report Share Posted July 11 (edited) On 5/15/2024 at 2:47 PM, banzai510(hainz) said: This is my Datsun 510 stock strut. Jeff Hino(Icehouse) cut the stock strut perch off and welded the new perch at the same location as I use 15x7 +25mm wheels. I dont not want the perch to be lower as it would hit the tire. Then Jeff said get a 7in tall spring. Most springs are 8 inch. Luck I got the 7 and I still had to dial it DOWN all the threads to get the look I want. My shocks are for a 280zx 79-81.. some save VW Golf shock will work also. You will have to cut a section of the tube out any idea the perch height here? Im starting to do some backwards design for my front suspension from stock to know how my housings need to look. Im thinking a measurement like done in this thread. https://ratsun.net/topic/79833-how-to-lower-a-510/?do=findComment&comment=1724596 Edited July 11 by shlammed Quote Link to comment
banzai510(hainz) Posted July 12 Report Share Posted July 12 shit I cant remember now but I have a 79-81 280zx Koni strut cartride in there Quote Link to comment
shlammed Posted July 22 Report Share Posted July 22 all good man. I ordered a cheap set of s13 coilovers to get going Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.