Has anyone use the rear ride height (rasing and lowering) to combat understree in the evo? if so, what r ur thoughts? What should I be expecting? advan and disadvan?

 

the SCCA forums threads are much worse you can't ask a question without being belittled ...

 

If you only get belittled, you're lucky! That's a tough crowd over there

 

Whether the part is legal or not we should understand the mentality of competitors at Nats. Hell, there is a thread on NASIOC about what to look for on other makes of cars, to protest - sorry Corey.

I was protested the first time I took the Evo out, and that was for a 4th place trophy at a Tour. Navid / Harrison almost got protested for not having the hood vent in ESP. In my few times at Nats I seen protests for reversed brake backing plates, cats a few inches located off from stock, slotted suspension mounting points, and Sti arms on a WRX. Most of which did not have any performance advantage that could have been done legally.

An SEB member has told me that I will be protested by a competitor, if I win a tour, for something I interpret as legal. In the past 2 years STU has been pretty lax, the winning car had an illegal intercooler hose and an Utek. Last year a Sti had a missing wing light, some of the M3s had overly flared fender lips and they inspected for fender liner holes. Now it’s a national class, folks will be more serious about rule infractions.

 

Thanks for the input guys. I guess at this point I'll need to go to my sponsor (York Mitsubishi) and get a stock one to look at. I'll see if I can find a used one from a wrecked Evo and weight the metal components of the bushing and weigh the whiteline one. It's a start anyway.

 

IMO...the bumpsteer kit sleeve has more metal so it can offset the hole. I had both Whiteline bushings... the 388 and 588 at the same time and compared them. I originally thought the bumpsteer kit was legal...but after seeing the amount of metal and someone else had posted that it was illegal...not to mention it was a huge PITA to install, I gave the bumpsteer kit to a friend who's prepping his kaa for SM...locally. Would I protest...Hell NO!!! I don't think there is much of a performance difference between the two, but I don't have any datalogging to back that up...so whatever.
I guarantee you will see a difference with the 588 (toe control arm bushing) and will be happy...plus it's cheaper.

Dennis

 

Please do, it would be beneficial information, as this still seems to be in question.

 

Dennis-

What's the difference between the two bushings? It appears that they are the same bushing, just a different design. Is this correct?

 

I'll try get a definite answer this weekend on the metal content. I have Robi's bump steer kit installed which I planned to swap with some SuperPro offset bushings I bought if my toe adjustment is maxed after the Zzyzx coilovers go in (last year with the KW's I couldn't run the toe I wanted to):

I also have the old bushing somewhere (I think).

I'll be working on the car tomorrow.

 

I have taken measurements of the OEM toe link bushing and the Works replacement (not bumpsteer, thats already in the car). I haven't had time to do the calculations, but if you count the outer sleeve as part of the metal content there is NO way the replacement will be illegal, and I think this goes for their bumpsteer bushing too. I can get actual volume numbers next week as I'm in FL now

FYI, the OEM bushing actually has big washers pressed onto the ends (more contact w/chassis).

Kind of curious myself about the numbers since SP rules are similar to ST, although I wasn't protested last year for anything.

....and....Corey whooped me in the DC Pro Challenge first round last year...he graciously comes over and introduces himself beforehand and I tell him he's gonna whoop me (I have 285 710's and he's on ST legal tires in the rain, plus I have a much worse dial in to deal with)...he says, no it's just fun...later on he collects $1500 in contingency!?! Go Corey...

 

Dave...The 388 has a little bit less bushing material to allow the bigger sleeve to slide in. Yes...I said slide in. I didn't weigh the two sleeves though. The stock bushing has two big washers...one on each side, but the sleeve is relativity thin...as I recall. I'll PM Speed Element and ask if they have both bushing kits in stock. Maybe I can get each one measured and weighed. If you've replaced the shock bushing with the Whiteline bushing, the 588 is almost the same size, both bushing and sleeve...the shock bushing is a little bigger though. Either way, someone would have to have all the details in order to pull off the weenie protest. Again...I don't think you would go wrong with the 588.

Dennis

 

That's what I found too. The 388 kit isn't even close to the amount of metal in the stock bushing. Although obvious just by looking at it I also burnt out the rubber and put them in water to compare. I just used a cut up plastic bottle and a ruler but even with that crude setup it was accurate enough to prove the OEM has more metal.

Here are some pics:
http://evomn.net/cd/pics/2007/0310%2...os/photo7.html

 

Christopher...thanks for posting your pics. Very nice suspension. How much weight did you save swapping to the ZZYZX's???

Dennis

 

Thanks, I'm really happy with the Zzyzx setup and I haven't even used them yet.

Of course since I didn't weigh them somebody would ask the weight. I decided not to bother since the scale I have is so inaccurate, but I knew someone would ask since I didn't do it.

They're about the same weight as the KW's and the package from UPS was less then 50lbs. I'm not sure what the stock suspension weighs. I sold mine.

Steve from Zzyzx could probably give you exact numbers.

 

FYI: Drivers entered in the SD Tour event and the El Toro Pro might want to take notice until the wording is completely ironed out. I know my rear upper strut bar might be considered illegal with the new clarification in ST/SP/SM.

http://sccaforums.com/forums/1/236860/ShowThread.aspx

Dave