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  1. prsrcokr

    Upper mount questions?

    Thanks for the help. I'd use stock mounts for now if possible but I don't think it will work. Looks like the 'cups' on the bottom of the mounts are, rear ~3.125" and fronts ~3.75" so they wouldn't fit over standard springs. The fronts look like the 'cups' could be easily cut off (3 tack welds)...
  2. prsrcokr

    Evo Recaro seats?

    Agreed on making your own brackets. I bought some 'Sparco' brackets for the mk3 and found they had awful fitment (said 86-92 Celica on the tag) They fit the floor shape but the bolt holes for the floor and seat were off and had to be modified. Also were very high so we made our own brackets.
  3. prsrcokr

    The $2008 Grassroots challenge build-up thread

    Sounds good for alignment, we couldn't get 1.5 with mine and were limited to 1.1 up front and did 1.5 in rear (had 1.9 in rear before but I liked the feel of this a little better) You've got variable rear toe on these cars, so you could go even lower and still have a little under...
  4. prsrcokr

    I want to go Road Racing!

    Fwiw, I really like my Eibach/Tokico setup but I'm pretty used to it and have dialed the swaybars and alignment in to be very nuetral. I'm still on street tires and could certainly use more spring like Tim mentions but the car is pretty nuetral (slight oversteer and on- demand great throttle...
  5. prsrcokr

    1 piece driveshaft help

    Anyone else have measurements? I'm hearing the NA's are longer and some autos. My stock 5 speeds were 50-1/4", this replacement 1 piece was 50-3/4".
  6. prsrcokr

    The $2008 Grassroots challenge build-up thread

    Can't wait to see another mk3 in GRM, best of luck guys! If yall need any help/advice there's a few of us that are into auto-x and track stuff for that portion of the event. Brian
  7. prsrcokr

    1 piece driveshaft help

    Right, it doesn't fit tight but it's 1/2" longer than stock so I thought it could be putting more stress at times (if expanding, like when people over grease a stock DS and it causes problems) I'll have to take things apart to figure why I'm having problems suddenly, this was just my first...
  8. prsrcokr

    1 piece driveshaft help

    Who else has verified this info? Both of my R154 DS's were the same measurement, which was ~3/8-1/2" shorter than the 1 piece I just received. After a single event the car will hardly roll in nuetral as if the DS is binding or not completely disengaging. 1st and 2nd are also suddenly hard to...
  9. prsrcokr

    Upper mount questions?

    Can anyone verify what spring diameters will work with various upper mounts? Stock springs and springs designed to work with OEM mounts are tapered to ~3.25" ID to match the OEM mounts (these have an inner cup that will not allow straight 2.5" / 2.75" springs to line up. I'm wondering what...
  10. prsrcokr

    A70 Circuit Racers - Which Diff?

    Agreed, I like the taller gears as well. I've got a 3.73 that's about perfect for track. Of course the 4.10 Torsen I have was nice on the shorter tracks but it can lead to more shifting on long ones (my original engine sees shifts at 6k or less unlike yall) Brian
  11. prsrcokr

    A70 Circuit Racers - Which Diff?

    What's understeer? ;) I don't see it as not being predictable at all, of course it is a torque multiplier and 0 times anything is 0, if that's what you mean (getting no traction to one tire) Even in the rain events it's done well but I've had some snap spins getting used to it. I'll agree...
  12. prsrcokr

    A70 Circuit Racers - Which Diff?

    I think the Euros were designed with autobahn abuse in mind. I've heard the cooler is available from Toyota for ~5k! Doesn't sound like yall have had problems with the Torsen unit though. Don't like the operation? I really like mine but I'm coming from being tired of wearing clutches on...
  13. prsrcokr

    A70 Circuit Racers - Which Diff?

    I had forgotten you weren't using Toyota stuff anymore. So it was the front pinion, not the diff assemblies themselves. I'd imagine the pinion is very similar in the mk4 and other Toyota stuff but maybe the oil setup in the casing is improved (I remember the mk3 casing being groved to supply oil...
  14. prsrcokr

    A70 Circuit Racers - Which Diff?

    1J, any info on the cooler setup? The mk4 guys on SF are asking about it as they mention not seeing people running diff coolers on Supras (although it was a euro option for mk4's) I told them about your issues.
  15. prsrcokr

    T1 Torsen Stress Analysis

    Are you sure it is the T2 unit? I bought one from him too and it's the same style as another Torsen I picked up. Works great for me but I don't do drag stuff. Is this the TRD unit that can be purchased from Toyota? I thought that was a clutch style. Torsen markets this as a lifetime unit...
  16. prsrcokr

    VA folks, come try auto-x for free (Beach area)...

    Not at all, I wasn't sure which place to post it. Thanks, Brian
  17. prsrcokr

    VA folks, come try auto-x for free (Beach area)...

    From our NASA-X director, thought some folks might be interested: NASA Mid-Atlantic Autocross is proud to announce a new program called "FIRST TIMER FREEBIE RUNS" starting with the August 31 event at Langley Speedway in Hampton VA. Anyone at least 18 years of age with a valid drivers...
  18. prsrcokr

    VA guys, NASA doublecross 8/3 at Dinwiddie (VMP)

    No experience necessary, that's what the novice group is for (if you're worried about competing with others) Really it's about getting to drive the heck out of your car far beyond what you can do on the street and realize what you can/can't do with it ;) VMP is the biggest venue around our...
  19. prsrcokr

    Aluminum driveshaft noise

    Do you know what diff you're using? My Torsens have a slight clunk noticed when engaging. Noticed it while rebuilding as well but seems to be part of the design vs. a cluth type.
  20. prsrcokr

    VA guys, NASA doublecross 8/3 at Dinwiddie (VMP)

    If any of the VA guys are interested, NASA's having the annual doublecross at Virginia Motorsports Park this weekend: https://www.nasaproracing.com/nasa_event/show/?event_id=756 It's a auto-x run one direction for half the runs and then run the opposite for split and combined times. Signups...