19 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCorrecting rear camber H&R coilovers
Leading reported evidence
Install these
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
The parts don't come up on the site search for a 99 C2...and when I checked for fitment on the ebay listing the word was "will not fit"....I would have sprung at that price.
Leading evidence: 'Install these' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'design (selection of attachment points) addresses anti-squat' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check fitment' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Install with h&r club sports, street use , no track
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
My 99 C2 has been fitted with H&R club sports, street use , no track...they lower the car about 1- 1.25".
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I ended up using tarrett toe links , it worked very well .
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
design (selection of attachment points) addresses anti-squat
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
Some one with more attention to detail may have a better answer but I suspect the design (selection of attachment points) addresses anti-squat under acceleration.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
The parts don't come up on the site search for a 99 C2...and when I checked for fitment on the ebay listing the word was "will not fit"....I would have sprung at that price.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check fitment
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
The parts don't come up on the site search for a 99 C2...and when I checked for fitment on the ebay listing the word was "will not fit"....I would have sprung at that price.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
if you understand the Porsche IRS then I've got a Q for you: I spent some time with the shocks out, a toe-plate attached to the hub and string-line to measure the rear toe change with bump/compression.
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Reported and suspected causes (1)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
design (selection of attachment points) addresses anti-squat
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause · Original poster
Some one with more attention to detail may have a better answer but I suspect the design (selection of attachment points) addresses anti-squat under acceleration.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
19 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
There is no change in the spring height as compressed by the weight of the car
My 99 C2 has been fitted with H&R club sports, street use , no track...they lower the car about 1- 1.25". Aligning the car I can't get any better than -2* toe on the rears (the eccentric adjustment is maxed out) , and I run out of toe adjustment with the stock link, leaving me with just a tad toe out . There are a number of replacement link suppliers with parts that will get it back to factory spec. .But, to avoid the expenseI was wondering whether anyone on the list with the same problem has tried raising the rear , a little more ride height , maybe
a 1/2" or so,
perhaps a thicker shim under the Spring or a different spring. Any thoughts?
I've heard of using a shim on top of the spring (under the top mount) but I have no experience with it. I just happened to be on Vivid Racing's site earlier today and saw these:
https://www.vividracing.com/torque-s...150724393.html
seems like a good deal...(although probably more than having a couple shims made...). Good luck and let us know how you decide to deal with it
Yeah, Vivid, Tarett, Agency Power, etc all have the nice parts that will do it. But I think I may just take a gamble and turn a couple of shims. Will publish the results
I ended up using tarrett toe links , it worked very well . Easy to do . I can�t see how shims would work even half as well . If they did , there would be a kit on the market
Your idea of raising the car makes sense.
As you go lower, you will need a shorter toe rod and there are several kits that can do this. They do not, however, correct the problem of toe out on bump of the lowered car. I suppose that a solution would be to dial in excessive rear toe in... but that way causes increased tire scrub/wear and is "slow".
One thing to also consider is the arc that the toe-rod takes in a lowered car. Since the rod will "effectively shorten" as it moves up and down in its arc, the goal is to make the sweet spot in the arc (the spot in which there is a minimal change in length; usually perpendicular to the wheel travel) align with your desired ride height. The reason this is important is because as the toe rod shortens during it's arc, it will cause the rear alignment to toe out... which makes the back of the car want to pass the front. The way others have done this is to shim the outboard toe rod link down, as in the Tarrett kit.
???...not at all... all the shim does is raise the chassis and change the position of the five links relative to the tire. There is no change in the spring height as compressed by the weight of the car
Yes...am well aware of the kinematics involved. The thought is that by raising the ride height, the orientation of the toe link would allow just enough more lengthening to bring the toe in a bit. Raising the car does the same thing
( to a certain extent geometrically)
as shimming the toe link . . And by raising the car, it also adds " length" (geometrically speaking) to the top links and force the camber back within factory spec. Hopeful that I said that right.
My car is low. I had inside edge wear on the rear. Both camber and toe were out of whack. The toe got corrected but the camber could not be brought within spec. 6K miles later the rear tire wear looks pretty even, so I think the toe is more important than the camber. YMMV.
I was thinking you were talking about a shim between spring and top hat. My error. So, your talking about a shim that goes on top of the top hat between shock and body?
Weird they have them on their website
http://meganracing.com/mrs-pc-0470.html
Fwiw , I couldn't be happier with the tarrett ones , very well made and more importantly they are a very effective solution .
I'm about to install these coilovers and all my research to date says you need to buy rear toe links that are adjustable and someway to fix the camber in the front. I bought GroundControl top hats for the front.
Mike A: Didn't mean to bore you with the kinematics 101. But, hey... if you understand the Porsche IRS then I've got a Q for you: I spent some time with the shocks out, a toe-plate attached to the hub and string-line to measure the rear toe change with bump/compression. On other cars, the setup was easy to understand and you'd usually just need to correct the toe change at +/- 2" travel to as close to zero as you can get it by shimming the toe-rod attachment points. On the Porsche, it seems different. The two upper links oppose fore and aft movement/rotation of the spindle as well as decamber with compression. However, they attach to the upper hub in an asymmetrical fashion. It's almost as if Porsche designed in some sort of rear steering(?). Is that so? If so, has anyone shared specific numbers of what to try to achieve when correcting rear suspension travel on a lowered car?
Some one with more attention to detail may have a better answer but I suspect the design (selection of attachment points) addresses anti-squat under acceleration. Rear drive cars benefit from rear lift (anti-squat), this raises the rear CG and increases weight transfer to the rear wheels under acceleration. The effect is created by selecting link attachment points such that the reaction to the applied torque from the drive wheels actually tends to lift the car. See Millikin and Millikin, page 395. As far as selecting the right alignment adjustment, the GT3 forum guys have bantered this in a number of threads.
The parts don't come up on the site search for a 99 C2...and when I checked for fitment on the ebay listing the word was "will not fit"....I would have sprung at that price. I'll probably go for the Tarretts, including the boots.
This is a source reference. Confirm exact model applicability in the original material.
