Impulse RS Rear Strut Modification

[91 CRAMBURY RS]

Originally Posted by Robie

since you didn't post picts, it doesn't exist...

i have to find the pics of the struts showing the height. write up is in my project thread. will update tonight.

more proof here:
http://www.isuzone.org/forums/showth...?t=7517&page=5

[Athos]

Originally Posted by malachi

Dodge NEON ACRs you monkeys.

Yeah yeah yeah... put some pics, please

The Saturn bracket rocks BTW

[West Coast Impulse]

Good work on the struts. I wanna see pics of the saturn mod.

[John]

Originally Posted by Athos

Yeah yeah yeah... put some pics, please

The Saturn bracket rocks BTW

and your pics are where?

[BamaImpulseRS]

Originally Posted by Robie

You now have less than 6" of travel with this mod. Most speed bumps are ~6" tall, and at speed will cause the top of the insert to be crushed. I base this on my experience with this mod and the custom struts I built for Mitchell. After turning the koni inserts to the max and seeing first hand the dampening effect it has, no way will they dampen enough to protect against a speed bump at speed with stock springs, and I kinda doubt that the coilovers I sell would compress enough to keep them protected...hard to say though.

I'll be very interested though in how well this insert mod works in real world driving with stock springs...

As soon as I get them back, I will do some extensive testing. I never speed over speedbumps as I see first hand the effects of people blasting over them even in trucks. At Nissan we get people in all the time on cars with less than 25k miles and needing new struts because the are speed bumper killers. I will take the RS up to Mt. Cheaha, the highest point in Alabama and test them on the road that runs down the back side. It is a narrow 13 mile road with very fast transitions, very tight 180* hairpins, and a fair share of hidden dips and bumps that made my old 91 SE-R crash into the front bumpstops on Eibach springs and KYB AGX struts.

Thanks Robie, and they are looking good. Can't wait to get them back.

[malachi]

Originally Posted by West Coast Impulse

Good work on the struts. I wanna see pics of the saturn mod.

You would only need the Saturn mod if you have my struts. My project thread has pics.

[Robie]

Originally Posted by malachi

You would only need the Saturn mod if you have my struts. My project thread has pics.

What page?

Post it here!

[mycroftXXX]

post #241 has a pic installed

[Robie]

Originally Posted by mycroftXXX

post #241 has a pic installed

you missed the point....Post them here in the Sticky!

[Robbie]

Originally Posted by Robie

No clue where you got that I said GR-2 being superior to Koni. Re-read and let me know...
BTW, your ride height is not increased with this mod either, loss of travel is the problem as stated above...and no amount of dampening will make up for the loss of 2" of travel...especially with stock springs. You need very stiff springs to make up for the loss of travel, then you can worry about dampening...

You now have less than 6" of travel with this mod. Most speed bumps are ~6" tall, and at speed will cause the top of the insert to be crushed. I base this on my experience with this mod and the custom struts I built for Mitchell. After turning the koni inserts to the max and seeing first hand the dampening effect it has, no way will they dampen enough to protect against a speed bump at speed with stock springs, and I kinda doubt that the coilovers I sell would compress enough to keep them protected...hard to say though.

The Blue springs in the photo would though, but they are definitely not what I include in my kit.

The custom struts I made for Mitchell are a completely different story though and not subject to the same limitations of this mod.

I'll be very interested though in how well this insert mod works in real world driving with stock springs...

When you said Don Grubbs mod, I figured they were Koni MR2 inserts. You could solve the travel issue by welding an extension on the bottom. What's the ID of the struts? If its greater than 44mm then you can use Koni "Cut-a Strut" inserts which have a bunch of applications and don't require welding on the top, they attach the strut with a nut and washer in the bottom of the strut that threads into the insert. 91-93 Sentra SE-R front strut inserts would probably be a good match travel-wise for the RS front and rear.

[malachi]

Wouldn't adding an extention also be adding metal into the CV shaft too?

[Robbie]

Originally Posted by malachi

Wouldn't adding an extention also be adding metal into the CV shaft too?

No, it wouldn't considering there's a nice 1-1.5" gap between the boot and the bottom of my strut.

[GEOsuzu]

I used Don Grubbs mod procedure using the 88 Toyota MR2 Strut top threaded housing and MR2 inserts listed in the original RS Strut Modification Sticky. I will arrange the pics in order shortly, so you can follow each graphic in the correct step procedure. I wanted to get this up now.

88 MR2 Mod:

http://s666.photobucket.com/albums/v...oSuzu/?start=0

[RaiDeN]

I noticed u cut up some wood for a bump stop. How important are they, because i noticed when i changed mine 1 did not have any and the other was pretty much disintergrated into crap. So they are not on the car, should i look into getting something on there? Whats the point in them :S

[mycroftXXX]

wood for a bumpstop? where?

I left out the bumpstops for the front set of robies coilovers and noticed a lot of rattling I got fed up with it and cut in some bumpstops and no more rattling.