Kein_Ersatz

Bill V is the go to resource

Analog Theory

Every time Bill posts it costs me five grand. So here they are all new factory bits essentially the exact BOM you posted here. I have Elephant Sport bushings ready to go in place of the stock hardness ones on the new Camber arms. I'll round it out with a locking toe link from ERP or similar. To summarize these will go nicely with the Rennline solid side mounts factory RS sways and drop links, RS wheel carriers and ERP outer tie rods (essentially their Bump steer kit) which Jae Lee convinced me to install which I'm told is the same setup the Singer cars run. As an aside I'll say it's a fantastic configuration, worth the money sad even with the RS carriers you really don't understand the bump steer effect until it's gone. Oh and I've been running the Waltod A Arm poly bushings for years. If anyone is looking I have the 2 factory RS tie rods in the picture I bought for sale (brand new). The front bits I referred to above including install, corner and alignment was $10k a couple years ago. The rear bits were nearly $3k and I'm expecting a couple more to get them in and realigned OMG. Now here's the challenge....my PSS'9's just turned 11 years old and 100k miles. Granted these are street miles but my driving style is aggressive to say the least. I'd be stupid at this point not to change these out
to PSS10....or maybe the MCS 2W right....right? Somebody please just shoot me lol....that would be cheaper. What to do....the 9's are really showing their age and one of the dials broke off years ago for good measure. Bill what are we shopping for next???

race911

^^^ At some point it's just not worth it on a 993. Yeah, I got the $15K+ suspension on the faux RS. But today (and I think I posted it elsewhere a few weeks ago), I'm getting a whole MCS takeoff set for the 996 Turbo + everything else Tarrett/track necessity.......for about $2500 of the $7500 "pile of parts" a guy is removing. So I'll be all in on a (worthless) 550 HP 996 Turbo, albeit a Ruf conversion car, for maybe, maybe, maybe $45K.

(Love the comment on bump steer, or lack of, when the cars are set up correctly v. "Stance Nation.")

Paddy

Ken, i know you've been a part of rennlist a long time and often have contributed to a technical discussion, thank you. However, as of late (past 3 years) you just post the same thing over and over and over and dont add value. You basically **** on every thread be it about suspension, gearing, 3.8 P&Cs, or any modification. We're all fully aware that your 964 has better gearing than Kim's (faux RS) and have seen the laptimes at various tracks in Northern California... However, that didn't stop you from spending the money to buy Kim's car and track it for years, even though it's a flawed 993, right? I'm sure you think you're helping, but for me and I suspect others it's exhausting.

Look, If people want to modify their cars and come here asking for help, lets help them not rehash the same stories and tell them its not worth it. It might not be worth it to you, and thats just fine its not your money. I'm sure everyone knows a new GT3 is faster and better, but this is a 993 bulletin board and we wish/want to discuss how to make our cars better.

Not to pile on, but look at Mr. Verburg's posts and help he provides.

MarinS4

Don't part with the RS tie rods ends just yet. The bump steer tie rods from Elephant racing were designed around stock uprights. The angle of the ends makes me think they won't work with RS carriers. Unless there is another version I am unaware of.

Analog Theory

They are not the ones you speak of no and have been on my car with the RS uprights for over a year now. I should have specified this but is something from E.R.P. not Elephant and looks something like this.

OverBoosted28

Can you get pics of the install, with the RS carriers/bump steer kit.
E.R.P.s bump steer kit is for 69-89 911. Even their installation page is for those years. Like to see how you set your up.

Analog Theory

Yes will do. Jae Lee @ Mirage Intl makes a 993 specific version of this same setup for E.R.P. (And Singer). I'll get some pics when he gets my rig back on the rack for the new rear bits install coming soon.

Bill Verburg

Here are a few pics of of a friends setup, ERP o/s rod ends w/ 993RS wheel carrier, also a pic of a 993RS outer tie rod and the ERP parts

OverBoosted28

Bill, is there a ride height level, which this "bump steer" kit, may not be any benefit? At what ride height (w RS hubs) would the kit be beneficial? Thanks

Bill Verburg

It's very hard to tell, one thing that limits it is that most guys use a really stiff suspension on a lowered car, that limits range of motion which in turn limits any bump steer effect.

I have stock RSR tie rods w/ the RS wheel carriers a very stiff limited range of motion suspension at RSR height, I'm sure that there is some bump steer present but not enough for me to do anything about it.

The pictures above were from Geoffrey Rings 964 3.8RSR replica, he was a fanatic and went to extremes to refine that car.

Tlaloc75

I have a similar question. How low can you go before you need RS carriers?

Bill Verburg

Again there isn't a cliff that you fall off

Here's what the suspension curves look like, the dashed blue line is the x-axis w/ 993RS wheel carriers, ideal curve for bump steer is a vertical line worst is a horizontal line, up to ~45° is generally ok, the x-axis is for 160mm front height w/ std carriers, the blue for ~120mm w/ RS carriers, RSR is at ~100mm

w/ stock carriers a drop of 40mm to RS height would place the x-axis at the +40, suspension action would be +/- from there. w/ Rs carriers you goig to be ~+20 and suspension action is +/- from there, You can see this part of the toe curve is steeper which is better for bump steer. Also don't forget the camber and roll center curves which are rarely talked about but are also important.

OverBoosted28

Best price I found

Kein_Ersatz

great off season thread