|
|
12-15-2014, 11:39 AM | #111 |
Major General
2768
Rep 5,483
Posts |
I lithium greased the poop out of my rd bar's bushings and it doesn't make noise from there anymore. The end links are turner and they are noisier than stock, but worth it for the preload issue. I think I have it on medium at one end to soften it up just a little and I. like it there.
I think the trick is going to be getting it to turnin without making it too loose when you feed in throttle because it's definitely possible to get it to turn. That was the genesis of my thread on that other board. Got it to turn, ok, now what? Oh, drift show, cool! *peace sign* I miss Hoosiers.
__________________
|
Appreciate
0
|
12-15-2014, 01:20 PM | #112 | |
Captain
191
Rep 969
Posts |
Quote:
__________________
Sold 2011.5 E92 M3 ZCP.
|
|
Appreciate
0
|
12-15-2014, 03:30 PM | #113 |
Brigadier General
2846
Rep 3,434
Posts |
Just had a blast yesterday at the Performance Center CCA autocross in the M3. Mike driving the F80 and I were battling for FTD but I had the tire advantage . My car has the original Dinan non-adjustable bar (65% stiffer than stock), pins out max camber up front, and I was using 10x18 ARC8s with 275/35 NT-01s. No understeer problems for me! The car was essentially perfect. I was instructing and giving ride alongs, and numerous people couldn't believe how well balanced it is. In fact, I can't fathom driving this thing with the stock front bar as it would be way too loose on the high speed turns there I would imagine (with the square 10"/275 NT01s).
(note: I've never driven it super hard on my street stagger 19" (255/275 PSS) as my F-street setup is 275 Rivals all around on 18s and then I have this square NT01 setup). I'm guessing your issue is old tires/stagger setup/overdriving the front end? I can't identify with the Miata transition since I've been autocrossing/tracking BMW sedans including my heavy M5, for, well, since forever ago (closing in on 40 years of this stuff pretty soon ). EDIT: BTW, that chattering from the front PS2s likely means they were overinflated...anything over 38 hot or so is probably too high. Then again, they could be well heat-cycled also...
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 Last edited by CSBM5; 12-15-2014 at 03:35 PM.. |
Appreciate
0
|
12-16-2014, 08:34 AM | #114 |
Private First Class
21
Rep 168
Posts |
Thanks for the input all.
Yes, I want to tweak the front bar settings. The PS2s in the front were done. The inner portion of both are pretty much bald. I ran pressures around 34/30 f/r. I'm not going to wait for the new Rivals, so my choice are effectively Star Specs or RS-3s. The Dunlops were my favorite on the Miata by far. I'm assuming in a larger size and with more weight they'll behave entirely differently, so I'm considering the RS-3s since they'll be about $200 cheaper. Since I'll only do 5-7 autoxes this year and most if not all one driver, the tires I expect to last well into next season. Plus I assume I'll need rears again before fronts, so whatever I pick I'll be fairly committed to. Thoughts? |
Appreciate
0
|
12-16-2014, 09:07 AM | #115 |
Major General
2768
Rep 5,483
Posts |
You might be surprised. I did cord the outsides of my fronts first, though it was close, my rear wear was more even. Especially with RS3's I would think you will go through the outside front edge first. Of course it will take more than the 80 runs it took on Hoosiers most likely
__________________
|
Appreciate
0
|
12-16-2014, 09:23 AM | #116 |
Private First Class
21
Rep 168
Posts |
Let me also clarify that I'm definitely not settled on one tire versus the other, so I'm looking for opinions/experiences with the two. And it looks like it's actually a $150 difference, so not too much in the grand scheme of things.
|
Appreciate
0
|
12-16-2014, 12:45 PM | #117 |
Brigadier General
2846
Rep 3,434
Posts |
You'll most likely destroy the outside edges of the RS3s looooong before you would Rivals; on a heavy camber challenged car, perhaps 1/3 the number of runs you'd get from Rivals.
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
Appreciate
0
|
12-16-2014, 12:57 PM | #118 |
Brigadier General
2846
Rep 3,434
Posts |
Jay's thread on sccaforums in this link has some of his experiences running RS3 vs Rivals on his E39 M5 (which of course is more of a brute on front tires than the E90 M3 with a good bit more weight and less negative camber). On page 3 of that thread he compares edges on some RS3s with less runs on them than the Rivals.
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
Appreciate
0
|
12-16-2014, 01:36 PM | #120 |
Brigadier General
2846
Rep 3,434
Posts |
...and only 8" front wheels (in stock class). On my M5 I'm running -2.3 camber and 9.5/275 all around, and it could still use more camber but that's max'd out GC camber plates at my current ride height. E90 is definitely a better suspension design, front and rear, imo.
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
Appreciate
0
|
12-16-2014, 08:28 PM | #121 |
Captain
191
Rep 969
Posts |
I honestly think the Dunlops with their stiffer sidewall will actually stand up better than the RS3's and net out less costly in the long run. I suppose you could argue the Rivals would benefit from the ridiculous side tread but I'm just not a fan of them.
__________________
Sold 2011.5 E92 M3 ZCP.
|
Appreciate
0
|
12-18-2014, 06:50 PM | #122 |
Brigadier General
2846
Rep 3,434
Posts |
Speaking of edge wear...I'm really impressed with the E90 M3's front suspension in stock form (of course other than the Dinan bar and pins out for -1.4 camber). Below are pics of the NT-01, 275/35-18 on 10" wheels, after about 25 total runs at the long and high speed Performance Center CCA autocross course. The edge wear is definitely less than my M5 on the same tires running -2.3 camber (likely due to a less favorable camber curve under compression and probably more roll too even though the M5 has Dinan springs/Konis) although you definitely tell it's bearing on those edges...
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
Appreciate
0
|
12-31-2014, 11:19 AM | #123 |
New Member
3
Rep 22
Posts |
Hey Guys. I'm a former E46 M3 owner now driving NC MX-5 in STR. Probably gonna pick up a ZCP for F street in next couple of month. I autocross for around 7-8 years now did a couple of Pro Solo and Tour event, so not a complete noob. I was considering a DCT, so I have a quick question. All Pro Solo sites I attended have at least one side where you have to hold the e-brake while waiting for the light (uneven surface). Can you launch the DCT in situation like that or am I just screwed if I go this route?
|
Appreciate
0
|
01-01-2015, 01:27 PM | #124 |
Major General
2768
Rep 5,483
Posts |
I don't have any personal experience but i don't see why you couldn't just put it in 1st and rely on the ebrake. LC in the DCT just dumps the clutch at a given rpm which is way too high for street tires on an unprepped non-dragstrip surface
I think the dct has a hill holder feature too
__________________
|
Appreciate
0
|
01-01-2015, 02:35 PM | #125 |
Captain
191
Rep 969
Posts |
The hill holder function will do the trick. I'm not generally a fan of such "assistance" but can really see the benefit of it at a site like the DC Pro or a few other venues where you are at an incline. On a separate note, as parts seem to be flying off my Z3 in the partout, I am getting the itch for 18x10's and tires.
__________________
Sold 2011.5 E92 M3 ZCP.
|
Appreciate
0
|
01-06-2015, 07:10 AM | #126 |
New Member
3
Rep 22
Posts |
Thanks for the response guys. I've started searching around with a budget around 45g for a 2011. Seems like they are coming off lease and there are a descent amount available. Finding one with no moonroof and comp package around my area is pretty rare right now. Unless I'm flying or have the car shipped. There is one that is a full stripper car, I mean nothing on it, no moonroof, no comp package, speed cloth. Is the extra weight saving of guessing 100-150 worth over the bigger wheel width?
|
Appreciate
0
|
01-06-2015, 07:18 AM | #127 | |
Brigadier General
2846
Rep 3,434
Posts |
Quote:
I bought the car from a BMW dealer who had it returned early from a 2 year lease with 16k miles on it; they CPO'd the car too. I rented a car and drove 500 miles to the dealer, and my wife and I had a fun trip picking up the car. Factory warranty just expired last month -- never needed for any repair, only all the free maintenance.
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
|
Appreciate
0
|
01-06-2015, 11:09 AM | #128 |
Major General
2768
Rep 5,483
Posts |
Slicer - the very restrictive near-stock Street rules dictate the extra wheel width you get from the ZCP wheels can only be used if you have a ZCP car. This is to avoid a cascade of unintended consequences if people were able to mix and match option packages to greatest advantage. It's also irritating as hell but thems the breaks
Edit: Ninja post delete!
__________________
|
Appreciate
0
|
01-06-2015, 06:11 PM | #129 |
Captain
191
Rep 969
Posts |
Here's my thought on the competition package benefits and deficits. The comp only came on 2011 and later models which had different bearing shells. The competition package had higher spring rates, slightly lower COG and wider wheels but typically EDC which may have little benefit but higher cost. When you are stuck with no camber allowances, wider wheels have more importance. Weighing that relative to running in class was a choice. You can run the same width tire on a 1/2" narrower wheel, just not as effectively. That's why picking the right car is important. Believe me, I picked the wrong car to start auto crossing and have paid for it for years.
__________________
Sold 2011.5 E92 M3 ZCP.
|
Appreciate
0
|
01-06-2015, 06:20 PM | #130 |
Major General
2768
Rep 5,483
Posts |
All ZCP cars were equipped from the factory with EDC. Good way to spot somebody using the wider wheels on a car that didn't come with ZCP originally is to look for that button. If that button isn't there they haven't completed the retrofit
__________________
|
Appreciate
0
|
01-12-2015, 01:05 PM | #131 | ||
Brigadier General
2846
Rep 3,434
Posts |
Quote:
Quote:
__________________
Current Stable:
2024 G20 M340i Melbourne Red/Cognac 2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg 2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8 |
||
Appreciate
0
|
Post Reply |
Bookmarks |
|
|