which SPL sub-frame spacers?

[barrigas14]

i think Nismofreak can help with this question but this is also for anyone that has used them. which subframe spacers should i get.

the pro's of the collars? it is for my S14 and is going to be completely track with maybe some street...so i don't care about harhness. it will see lots or track time, autox, drifting and anything else i can do.

so soild or collars.

[Nismo_Freak]

I'd suggest solid for that application.

However if you don't want to put up with the install the collars are a good route too.

All in how much work you wanna do to install either.

[barrigas14]

how much work is no worry. i can take my time since i am going to have a second car now.

[BuudWeizErr]

solid subframes, you have to get the old bushings out.. which means dropping the subframe completely and usually includes torching them out. Exar-kun just did his. might want to talk to him.

[MarkEmark]

I was just about to post a question about this...

I'm sure Nismo Freak can answer this as well: How much stiffer are the solid aluminum bushings vs. the aluminum collars used in conjunction with the OEM bushings? How much harsher is the ride? Is it worth it to go all metal in the bushings vs. just using the collars, ie, does all metal give you a significant increase in rear end stiffness/feel?

My car is street-driven but I do plan on autocrossing it...i'm used to the harsh ride already and don't mind it being a BIT harsher (I already have tokicos, eibach proline springs, f/r STBs, f/r sway bars, nismo power brace, projectsilvia tension rods, etc etc).

If I were to go the route of completely replacing the bushings, how much of a PITA is it to drop the subframe/remove the bushings? Any special tools and/or headaches I should be forewarned about?

I wouldn't want to get the collars just to find out that I probably should have gotten the solid bushings for a better bet...

[ceniack]

i was curious about the exact same thing. inquiring minds what to know.

[Nismo_Freak]

I was just about to post a question about this...

I'm sure Nismo Freak can answer this as well: How much stiffer are the solid aluminum bushings vs. the aluminum collars used in conjunction with the OEM bushings? How much harsher is the ride? Is it worth it to go all metal in the bushings vs. just using the collars, ie, does all metal give you a significant increase in rear end stiffness/feel?

Evidently after talking to some people that had them they don't increase ride harshness as much as one would think. If anything they increase noise more than the ride quality. Then again this is from another persons perspective, so don't take it as the final word. With ride quality questions it's really hard to say... cause what I, or you percieve as hard another would percieve as acceptable.

Obviously the all metal bushing would be significantly stiffer than the OEM bushing being compressed by the collars and would reduce subframe movement even further.

If I were to go the route of completely replacing the bushings, how much of a PITA is it to drop the subframe/remove the bushings? Any special tools and/or headaches I should be forewarned about?

Dropping the subframe requires normal hand tools. Removing the bushings the easy way requires a torch to burn out the rubber, and a air chisel to remove the bushing's metal collar. From there installation is fairly simple. Stick the bushings in the freezer for at least an hour, and they should slide into the subframe.