Derbo's ZHP

[Hermes]

That doesn't look like SCCA rules at all. Is that bmwcca?

yeah, SD chapter. I'm not a member of SCCA so I'm not sure what their rules are

[spencers]

yeah, SD chapter. I'm not a member of SCCA so I'm not sure what their rules are

Ah, thought so. SCCA is a little different. Everything must be stock. Only permitted things are: brake pads, r-comps, dampers, wheels (as long as stock dimensions & offset). I think front sway and cat back exhaust is permitted, but don't recall off-hand. Quite stringent!

[Hermes]

yeah, our class system is kinda funky but I like it. Historical racing classification (2002's) is ridiculous, I'm not gonna even waste my time trying to get the 2002 to work within those classes so I'll just run it (when restored) at BMW CCA in the 4-cylinder class.

Here is a breakdown of our classes:

4C ---- ALL 4 cylinder BMW models (except E30 M3)
6S ---- Stock 6 or 8 cylinder BMWs up to 295 stock horsepower
6M ---- Modified 6 or 8 cylinder BMWs up to 295 stock horsepower
TS ---- Stock 6-8-12 cylinder BMWs over 295 stock hp, M cars before 1994
TM ---- Modified 6-8-12 cylinder BMWs over 295 stock hp, M cars before 1994
MS ---- Stock M cars, 1994 - present
MM ---- Modified M cars, 1994 - present
MC ---- ALL R-class MINI Cooper models
X ---- ALL non-BMW or MINI models
G ---- Gold Class for all Instructors, opt-in drivers, and cars with slick tires


/threadjack

[derbo]

hahahahahaahha /threadjack

[derbo]

Today after work I decided to tackle a few things.



Swapped out the stock zhp motor mounts and put in new e92 m3 motor mounts.



Install some RE Transmission Mounts.



Install RTAB Shims from RE.



Also replaced my fuel pump and valve cover gaskets.

Last by not least tried some new shoes, and got a nice new alignment







17x9 +42 APEX Arc8 with hankook 255/40/17. It rubs pretty bad on the swaybar when turning the wheel a bit. I'm not sure if that is 100% lock or not. Strut clearance is barely 3mm from the tire to the strut. Good thing this wheel isn't mine cause I am seeing a hell of a clearance problem LOL.



New alignment specs right now:

Front
Camber -3
Toe -0 05'

Rear
Camber -2
Toe 0 11'

[ryankokesh]

Whoa! I guess you can get a lot done after work when you have a nice place to do it like that! (and quite a bit of talent!)


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[Rock Nova]

I love this car. Talk to me about the Ground Control/Koni setup. What spring rates did you go with and how are they on the street? I'm leaning toward a GC/Koni setup but mine will be 100% street car and no track time, so I'm trying to figure out that ceiling for spring rates and comfort on the street.

[derbo]

I am using their Street/Touring setup. It is selected with sport ride springs. The spring rates are 375lbs F 430lb R. As far as daily driving on the street is incredibly comfortable. Large potholes are going to be a little jarring but thats with all lowered suspension. It's one of the most comfortable rides I had in a coilover setup. It does leave a little room for improvement on the track as it is a little too soft.

[Rock Nova]

I am using their Street/Touring setup. It is selected with sport ride springs. The spring rates are 375lbs F 430lb R. As far as daily driving on the street is incredibly comfortable. Large potholes are going to be a little jarring but thats with all lowered suspension. It's one of the most comfortable rides I had in a coilover setup. It does leave a little room for improvement on the track as it is a little too soft.

Thanks! That is good to hear (for me) as if it were just right on the track it would be too stiff for my needs as a daily driven family hauler.

[LivesNearCostco]

I have the same 375/430 GC spring rates and it is comfortable on street except for speed bumps, which are jarring, or on roads being prepared for repaving. I've only had it on for 9 days so haven't hit any big potholes yet. From my one track day on it, yeah I would like slightly higher spring rates for track but am afraid higher rates would beat me up on rough roads. I'm thinking of buying a set of 440/550 lb/inch springs to try them out because now spring replacement is so easy! GC sells them new for $59 each ($236 a set) or sometimes you can find them used from somebody who went with even stiffer springs.

I've can't compare to any other coilovers or aftermarket E46 springs.

Hermes: The CCA Golden Gate chapter uses different AutoX classing rules than LA/SD. They have a point system.