Page 99 of 170 FirstFirst ... 49899596979899100101102103109149 ... LastLast
Results 1,961 to 1,980 of 3392

Thread: BadAss SRT-Z - 2.4L / A568 - Update!!!

  1. #1961
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by BadAssPerformance View Post
    Conclusions?
    You need more practice
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  2. #1962
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanman²'s Avatar
    Join Date
    Dec 2005
    Location
    Abbotsford, BC
    Posts
    44,167

    Re: BadAss SRT-Z Update!!!

    Thanks for the update, all interesting info.

    Sucks you didn't go faster though,
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

  3. #1963
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    That "tire shake" does sound like Reaper could have a point about the springs being under-damped though.... but could also be a little too much toe out under power.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  4. #1964
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,838

    Re: BadAss SRT-Z Update!!!

    do the cut out and the dropped logging coincide?

    is the front rebound dampening on full stiff?

    you gonna do a DJ semi-crash box mod while the trans is out?

    im wondering if just doubling the springs like he did would help synchro engagement on an otherwise stock trans.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  5. #1965
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
    Join Date
    Jan 2006
    Location
    Kentucky
    Posts
    4,860

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by Aries_Turbo View Post

    im wondering if just doubling the springs like he did would help synchro engagement on an otherwise stock trans.

    Brian
    I'm about to find out!

    James Reeves - Reeves Racing
    World's Fastest 8 Valve - 146.88 mph
    86 GLH-T 9.99 at 143.78 mph
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 15 years
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.48 Dad's

  6. #1966
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,838

    Re: BadAss SRT-Z Update!!!

    there you go.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #1967
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2006
    Location
    Edmonton AB
    Posts
    2,082

    Re: BadAss SRT-Z Update!!!

    I don't personally see damping as being a problem that would cause tire shake. Damping is velocity dependent so the quicker the spring wants to move the more the damping effects it. For myself I was seeing tire shake starting near the middle to the top of 2nd. For any given gear the only spot damping really comes into play is on the shift into the gear in rebound and the shift to the next gear in jounce. Once in the gear you are more or less into steady acceleration and the suspension travel has hit it's steady state position, therefore damping has no role. Tire shake to me is the resonance of the tire itself acting like a spring. When on the verge of traction the tire will slip and relax allowing it to grip again and then it is pushed to slip and back and forth. If you have more power it will just spin and less power and it will just hook. It's the nasty in between where you get the shake.

    Quote Originally Posted by Aries_Turbo View Post
    you gonna do a DJ semi-crash box mod while the trans is out?
    It would for sure help a stock trans as it helps the shafts match speeds. Unfortunately I'm not a fan of pulling or rebuilding trannys so I did everything at once and didn't get to see what the individual changes would do.

  8. #1968
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    I can see your point there about the damping, yes tire shake may happen still if all else is "perfect", but it may happen sooner than it should if something is underdamped (spring hits a harmonic and keeps kicking tire out of traction) or overdamped (suspension is far too rigid and minor undulations in surface keep throwing tire out of traction) rather than being at the absolute traction limit for that tire..... could also be due to any slight slop in suspension components.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  9. #1969
    turbo addict
    Join Date
    Jan 2006
    Location
    Hazelwood, MO
    Posts
    6,566

    Re: BadAss SRT-Z Update!!!

    Just to clarify, I was only going after the launch of the car and the energy transfer that is related to that action, not the tire shake.

    For the tire shake, did you try different pressures in the tires? That would change the resonance frequency.

  10. #1970
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    Good point...

    I guess you could whack your tire and whack your coil spring and if they make close to the same note, then rig it so they don't.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  11. #1971
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
    Join Date
    Dec 2005
    Location
    Chicagoland!
    Posts
    27,688

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by Reaper1 View Post
    What is being neglected here is inertia! The spring and the suspension parts will both have inertia that will cause the suspension as a whole to extend and KEEP extending in a dynamic situation. Remember that springs that hold in energy, then release it oscillate. The don't just stop at the free length of the spring when they release the energy, they extend beyond that. This is where dampers come into play, and having the ability to adjust the RATE at which the spring can release its energy, or have energy passed to it is VERY important.

    Just having stiff springs might not be the sing answer here as you can end up making things worse. Providing the proper dampening to the system is PARAMOUNT to control the energy transfer.
    Inertia... or more importantly momentum. Making things stiff and damped seems to have reduced the mometum of the chassis moving around. I tried 1 turn (40%) and 2 turns (80%) should have tried 0. Similar lauches (60') with each setting, more tire shake with 80% ... Hmmm...

    Quote Originally Posted by RoadWarrior222 View Post
    You need more practice
    ALWAYS!

    Quote Originally Posted by RoadWarrior222 View Post
    That "tire shake" does sound like Reaper could have a point about the springs being under-damped though.... but could also be a little too much toe out under power.
    toe is almost 0°... a couple minutes negative at rest and 0° on lift, so it should never toe out. Does anyoen have the factory alignment specs handy?

    Quote Originally Posted by Aries_Turbo View Post
    do the cut out and the dropped logging coincide?

    is the front rebound dampening on full stiff?

    you gonna do a DJ semi-crash box mod while the trans is out?

    im wondering if just doubling the springs like he did would help synchro engagement on an otherwise stock trans.
    Cut out and drop in logging are seperate issues.

    No, ~40% and ~80% as noted above...

    Would love to, but not sur eif I go ttime... DJ, you think a bench grinder can remove dog teeth OK?

    Definitely planning to double up slider springs.

    Quote Originally Posted by RoadWarrior222 View Post
    I guess you could whack your tire and whack your coil spring and if they make close to the same note, then rig it so they don't.
    I actually have access to a "calibrated hammer" (insert Ford tool # 001 joke here) but I am not sure if you could ever get a rubber tire and steel spring to make a similar note?

    I am trying to decide if I want to go stiffer spring in the rear... Hmmm...

    JT
    SDAC Director
    SDAC-Chicago President
    JOIN SDAC and your local Chapter TODAY! - SUPPORT the CLUB that supports YOUR HOBBY!
    87 Shelby Z - 10.50@141.66mph
    87 CSX #751 Clone - 12.88@102.88mph

    www.badassperformance.com
    Check out Turbo-Mopar Times!
    Submit your 1/4 mile times HERE!!

    Support SDAC! Join Today!
    "I'm not some pro athlete with a bajillion dollars, I'm just an every man"
    Note: The information and any images provided in this post are not for distribution outside this forum without the author's permission.

  12. #1972
    Supporting Member II Turbo Mopar Contributor Shadow's Avatar
    Join Date
    Dec 2006
    Location
    Aubigny, Manitoba, Canada
    Posts
    5,088

    Re: BadAss SRT-Z Update!!!

    JT, are those your PB for 60'? Glad it's working for you!

    Robert Mclellan
    http://www.youtube.com/watch?v=wambNdfnu5M
    10.04 @ 143.28mph (144.82 highest mph)
    Worlds fastest 8v MTX Shelby Charger
    Manitoba's Fastest 4cyl!
    8 valve, No Nitrous!
    New clutch combo is the SH!T!

  13. #1973
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
    Join Date
    Dec 2005
    Location
    Chicagoland!
    Posts
    27,688

    Re: BadAss SRT-Z Update!!!

    Thanks. Those were not tho... it has cut 1.67 60' Recently no better than 1.8 so the 1.7's are moving back in the correct direction

    JT
    SDAC Director
    SDAC-Chicago President
    JOIN SDAC and your local Chapter TODAY! - SUPPORT the CLUB that supports YOUR HOBBY!
    87 Shelby Z - 10.50@141.66mph
    87 CSX #751 Clone - 12.88@102.88mph

    www.badassperformance.com
    Check out Turbo-Mopar Times!
    Submit your 1/4 mile times HERE!!

    Support SDAC! Join Today!
    "I'm not some pro athlete with a bajillion dollars, I'm just an every man"
    Note: The information and any images provided in this post are not for distribution outside this forum without the author's permission.

  14. #1974
    Supporting Member Turbo Mopar Contributor turbo2point2's Avatar
    Join Date
    Jan 2006
    Location
    Philly
    Posts
    946

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by BadAssPerformance View Post
    Thanks. Those were not tho... it has cut 1.67 60' Recently no better than 1.8 so the 1.7's are moving back in the correct direction
    How old are the slicks? Maybe a fresh set will get you to the 60' better.

    -Brian Slowe
    87 Shadow "BSX"
    8.58 @ 162

    86 GLHT
    10.62 @ 130

    05 SRT4
    12.1 @ ???.??

    06 Ram 3500

  15. #1975
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by BadAssPerformance View Post
    I actually have access to a "calibrated hammer" (insert Ford tool # 001 joke here) but I am not sure if you could ever get a rubber tire and steel spring to make a similar note?
    I'm thinking a road tire at 36 PSI or so makes a dull ping, and a stock spring a low "dung", so a lower pressure slick and a stronger spring might be closer.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  16. #1976
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
    Join Date
    Dec 2005
    Location
    Chicagoland!
    Posts
    27,688

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by turbo2point2 View Post
    How old are the slicks? Maybe a fresh set will get you to the 60' better.
    Almost exactly 2 years. I was thinking that too... and thinking 26's.

    Funny thing, these tires have looked pretty ratty since spinning 1/8 mile at Mason-Dixon, but after this past event they are actually looking much better with more even wear.

    Quote Originally Posted by RoadWarrior222 View Post
    I'm thinking a road tire at 36 PSI or so makes a dull ping, and a stock spring a low "dung", so a lower pressure slick and a stronger spring might be closer.
    Really? I cannot see a "thud" sounding like a "tink"

    JT
    SDAC Director
    SDAC-Chicago President
    JOIN SDAC and your local Chapter TODAY! - SUPPORT the CLUB that supports YOUR HOBBY!
    87 Shelby Z - 10.50@141.66mph
    87 CSX #751 Clone - 12.88@102.88mph

    www.badassperformance.com
    Check out Turbo-Mopar Times!
    Submit your 1/4 mile times HERE!!

    Support SDAC! Join Today!
    "I'm not some pro athlete with a bajillion dollars, I'm just an every man"
    Note: The information and any images provided in this post are not for distribution outside this forum without the author's permission.

  17. #1977
    Hybrid booster
    Join Date
    Feb 2007
    Location
    Memphis, TN
    Posts
    597

    Re: BadAss SRT-Z Update!!!

    Install travel limiters on the front?

  18. #1978
    The moderately moderate moderator Turbo Mopar Staff
    Join Date
    Dec 2006
    Location
    Akron, Ohio
    Posts
    6,870
    Just weld angle iron to each coil on the front springs.

    Sent from my DROID X2 using Tapatalk
    Bryan
    86 GLHS #161, 2016 Impala
    SDAC National Member, SDAC Buckeye Chapter Member

    A man has got to know his limitations.....

  19. #1979
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: BadAss SRT-Z Update!!!

    Quote Originally Posted by BadAssPerformance View Post
    Really? I cannot see a "thud" sounding like a "tink"
    After the thud when you hit it, for maybe half a second after... has to be off the ground to hear it though.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  20. #1980
    turbo addict
    Join Date
    Jan 2006
    Location
    Hazelwood, MO
    Posts
    6,566

    Re: BadAss SRT-Z Update!!!

    I microphone and a computer can record the sound. Then you can analyze the frequency the sound made. Once you do that, then you can see if they are close to the same harmonic. It doesn't matter if they are the same frequency.

Similar Threads

  1. BadAss SRT-Z Update!!!
    By BadAssPerformance in forum Project Log
    Replies: 1871
    Last Post: 09-18-2011, 08:39 PM
  2. 2.4L / A568 combo with SRT-4 Clutch - KC article feeder info
    By BadAssPerformance in forum Transmission
    Replies: 3
    Last Post: 04-25-2011, 01:17 PM
  3. A555 and A568 Quaife - the latest update/news
    By Austrian Dodge in forum Turbos Unleashed
    Replies: 5
    Last Post: 09-22-2009, 01:35 PM
  4. BadAss 2.4L Neon or BadAss 2.4L Z ???
    By BadAssPerformance in forum Custom Turbo Mopars
    Replies: 47
    Last Post: 02-04-2009, 10:16 PM
  5. SDAC 16/SRT Nationals Payment update
    By speeddemon in forum SDAC Events
    Replies: 9
    Last Post: 01-30-2006, 12:21 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •