2017 STU Discussion!
So I'm the one with the "baller" shocks mentioned above, haha! I'll confirm I felt the same. Basically the rear of the car felt like it loaded and (probably exacerbated by the pavement dip) the rear unloaded in turns. Felt as if the rear was a little soft. My suspension was set dead in the middle of the setting range from the suspension shop that dynoed the shocks and havent touched them since. I did another event on Sunday and def got a better feel for the car but the rear still felt soft. From what Im reading online it appears I need to increase my compression.
So with two events under my belt I need to figure out what the hell im doing here in regards to adjustment. Btw im also on 700/900. Any help will be greatly appreciated.
Here is a vid of me on the same course about .4 seconds back from Laloosh. Despite my ****ty line and ****ty driving (sorry first event back on a car that felt totally different) this was my fastest run.
So with two events under my belt I need to figure out what the hell im doing here in regards to adjustment. Btw im also on 700/900. Any help will be greatly appreciated.
Here is a vid of me on the same course about .4 seconds back from Laloosh. Despite my ****ty line and ****ty driving (sorry first event back on a car that felt totally different) this was my fastest run.
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From: Why do they always call the Evo the Dark Side?
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Do you have dynos for yours? Someone else posted theirs in the $2k coilover thread but they didn't know what was graphed.
Do you have dynos for yours? Someone else posted theirs in the $2k coilover thread but they didn't know what was graphed.
My buddy cut out two pieces of plexiglass, drilled a few holes for threaded rod and wingnuts and sandwiched it. I used a sticky mount and stuck it and the gopro at the very end. He made me one too. Great idea... could use a little tweaking.
Last edited by JJwins; Mar 29, 2017 at 02:26 PM.
LSDs in STU/X
spreading the joy of debate all around this afternoon, but for the non-SB'ers here, I wanted to discuss the current LSD ruleset for AWD cars:
right so - no LSDs allowed for AWD cars that have at least one LSD - who does this even serve?? not the WRXs, I'm fairly certain they all have a viscous center - so who exactly is this for?
moving forward, I believe this language is becoming outdated by the month. What about eLSDs? What about "rear drive units" like in the FoRS?
The FoRS has an open front (though it has braking), no center differential, and no rear differential. The RDU in the FoRS is essentially the opposite of a limited slip differential - instead of binding the wheels together, they each have individual clutch packs that let them receive torque as they please. Technically, by this rule, the FoRS should be allowed 1 LSD, which would then replace the open front. either a helical or a 1way clutch.
I believe the language for this rule needs to be updated as AWD cars become more and more complex. The FoRS isn't the first car with this twinster setup, nor will it be the last. There are more cars with active diffs, and cars like ours with standard diffs. Either the rule should become ONLY standard diffs (which, it basically is now unless there is so sad AWD car with all open diffs that this is helping) or a plain-and-simple 1 aftermarket LSD allowed, which would be regardless of drivetrain, in whichever axle, etc.
I also do not think this upsets the applecart in any class, especially with the proposed STH class coming.
Thoughts? If you guys know me I am all about correcting the CT9As shafted rear diff, so I am biased there but that doesn't mean I'm wrong on this in and of itself
STU, STR, STX – Only standard (as defined in Section 12) limited slip differentials
(LSD) are allowed on AWD vehicles. For AWD vehicles that
did not come with any type of limited slip differential (including center
differential or transfer case), a single aftermarket mechanical LSD may
be added. 2WD vehicles may use any mechanical LSD unit.
(LSD) are allowed on AWD vehicles. For AWD vehicles that
did not come with any type of limited slip differential (including center
differential or transfer case), a single aftermarket mechanical LSD may
be added. 2WD vehicles may use any mechanical LSD unit.
moving forward, I believe this language is becoming outdated by the month. What about eLSDs? What about "rear drive units" like in the FoRS?
The FoRS has an open front (though it has braking), no center differential, and no rear differential. The RDU in the FoRS is essentially the opposite of a limited slip differential - instead of binding the wheels together, they each have individual clutch packs that let them receive torque as they please. Technically, by this rule, the FoRS should be allowed 1 LSD, which would then replace the open front. either a helical or a 1way clutch.
I believe the language for this rule needs to be updated as AWD cars become more and more complex. The FoRS isn't the first car with this twinster setup, nor will it be the last. There are more cars with active diffs, and cars like ours with standard diffs. Either the rule should become ONLY standard diffs (which, it basically is now unless there is so sad AWD car with all open diffs that this is helping) or a plain-and-simple 1 aftermarket LSD allowed, which would be regardless of drivetrain, in whichever axle, etc.
I also do not think this upsets the applecart in any class, especially with the proposed STH class coming.
Thoughts? If you guys know me I am all about correcting the CT9As shafted rear diff, so I am biased there but that doesn't mean I'm wrong on this in and of itself









