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Thread: Racing slash

  1. #1
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    Question Racing slash

    I need some assistance, I am trying to get my Slash race ready and need some advice. My setup is:

    Pro-line transmission
    Pro-line protrack
    Pro-line steering
    STRC LCG kit
    STRC shock bodies
    STRC rear bearing carrier
    STRC front block
    Anzio rear shock tower
    Castle ESC and motor
    Losi silver springs rear
    Stock spring front
    Losi 35wt front and back

    My biggest problem is that I can't keep the back end straight on power and out of turn. I have tried different tire but I think it's my oil and springs. I don't want to give up on the truck but I want to be competitive.
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  2. #2
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    Rear toe in is important!
    Slight toe out in front will put a slight load outward on fronts to stabilize front tires from wobble

    You may need less slipper dialed in to allow a more gradual acceleration. If the tires don't hook up then don't use so much throttle, wheel spin does not equal forward acceleration.

    What tires are you running? What compound and what is the track surface you are running on?

  3. #3
    RC Turnbuckle Jr. O.G.'s Avatar
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    Is the proline differential causing you to slide out of the turns? Maybe it needs an adjustment.
    My Black & Blue Rally is faster than your color...

  4. #4
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    I think change differential oil can help.
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  5. #5
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    I'm running PL slider soft in the front and I have been switching between PL Caliber soft, Jconcept subcultures super soft and stock Losi SCTE. BTW the Losi seem to grip the best. Also I have a STRC 1 degree rear carrier that I'm thinking about adding to give it addition straight line bite.
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  6. #6
    RC Turnbuckle Jr. O.G.'s Avatar
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    Do you know how many degrees of camber you're running now on the rear?
    My Black & Blue Rally is faster than your color...

  7. #7
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    I have 1 degree of camber both front and back.
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  8. #8
    RC Turnbuckle Jr. rag6's Avatar
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    Check what tires the fast guys in your class are using.
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  9. #9
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    Would the PL Protrack and the STRC 1 degree rear carrier be to much too much toe?
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  10. #10
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    Any sugestions on what losi springs I should be using?
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  11. #11
    RC Turnbuckle Jr. 08kgraves's Avatar
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    well i was watching a video by jang and he used losi xxx green springs in back, and silver springs in front.
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  12. #12
    RC Turnbuckle Jr. rag6's Avatar
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    Yea, start there, and here is a chart on where to go from there:
    http://www.ultimaterc.com/forums/showthread.php?t=17347

    The extra toe will help you get out of the hole in a straight line better.
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  13. #13
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    Shock-springs/oil weight have nothing to do with turning. Shocks are for the jumps and bumps, period. Toe, camber and upper-rod positioning are the keys to making turns. Tire selection also comes into play.
    Last edited by Old Ezra; 09-07-2012 at 12:55 AM.

  14. #14
    RC Turnbuckle Jr. 08kgraves's Avatar
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    Quote Originally Posted by Old Ezra View Post
    Shock-springs/oil weight have nothing to do with turning. Shocks are for the jumps and bumps, period. Toe, camber and upper-rod positioning are the keys to making turns. Tire selection also comes into play.
    and your basing this off of what? shocks and springs also control how much body roll you have in corners. if you have to week of spring it will have to much roll therefore lifting the inside tire, if you have to heavy its just going to slide and not hook up as well.

    so please tell us oh great one on how it has absoulutely nothing to do with turning?

    if you still dont believe me then just read this

    http://www.circletrack.com/chassiste...s/viewall.html
    Last edited by 08kgraves; 09-07-2012 at 01:20 AM.
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  15. #15
    RC Turnbuckle Jr. O.G.'s Avatar
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    I have a set of green losi springs on the front, blue on rear, on my P2de and race Sl2sh and they work really well.

    The greens are maybe a little soft for bashing with the Pede but perfect for the dirt track.
    My Black & Blue Rally is faster than your color...

  16. #16
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    Quote Originally Posted by Old Ezra View Post
    Shock-springs/oil weight have nothing to do with turning. Shocks are for the jumps and bumps, period. Toe, camber and upper-rod positioning are the keys to making turns. Tire selection also comes into play.
    Perhaps things are different in the RC world, but physics is physics, so I doubt it, and in the real world springs and shock damping have a large impact on cornering. Anything you can do to combat body roll and keep your tires flat on the ground will help you corner better. Period.

  17. #17
    RC Turnbuckle Jr. rag6's Avatar
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    Shocks springs and oil have everything to do with turning period lol...
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  18. #18
    RC Turnbuckle Jr. 08kgraves's Avatar
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    haha, tell him guys! lol

    i read that and was like are you kidding me? lol

    oh well it happens
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  19. #19
    RC Turnbuckle Jr. O.G.'s Avatar
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    One of my Slashes has springs so hard they could hold up a house.

    In a search for less body lean on turns I went a little overboard but it flips less often.
    My Black & Blue Rally is faster than your color...

  20. #20
    RC Turnbuckle Jr. 08kgraves's Avatar
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    did you think to try progressive rate springs? or duel rate?
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  21. #21
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    Quote Originally Posted by O.G. View Post
    One of my Slashes has springs so hard they could hold up a house.
    Doesn't that hurt you on traction though? Every surface is different of course, and I don't know what you're running on, but when I stiffened up my son's Slash on loose dirt, he'd spin out quite a bit due to lack of traction. Of course he didn't flip as often, but I still need to find the sweet spot for him.

  22. #22
    RC Turnbuckle Jr. 08kgraves's Avatar
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    dont forget about roll bars either. and for people that never thought about it rpm makes the duel stage pistons so you can tune your suspension even more. instead of just one rate for compression and rebound with 1-3 holes and whatever weight oil you run you can set it up so that say it has a 1 hole compression speed but a 4 hole rebound so it recovers faster. just something to think about for anyone big into racing of any sort.
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  23. #23
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    Quote Originally Posted by Old Ezra View Post
    Shock-springs/oil weight have nothing to do with turning. Shocks are for the jumps and bumps, period. Toe, camber and upper-rod positioning are the keys to making turns. Tire selection also comes into play.
    Wow! This is definitely a first for me!

    So, say hypothetically I'm running paved or even dirt oval. Should I just take the shocks off of my truck and replace them with solid camber links?

    The funniest thing is that most, if not all the oval guys I know run different spring/ oil combos from side to side, if not on all four corners. Why would they do something like that if shocks had nothing to do with turning?

  24. #24
    RC Turnbuckle Jr. 08kgraves's Avatar
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    where is the like button when you need it harry697? lol

    heres some vids that will help you out probably.



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  25. #25
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  26. #26
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  27. #27
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    This is a lot of info, back to the LHS I go, lol. Thanks
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  28. #28
    RC Turnbuckle Jr. 08kgraves's Avatar
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    no problem, hope all this info has helped you so you dont need to buy parts again to try and get the setup you want. an assortment of springs, oil, and preload adjustments (if not threaded) are always good to have around so you can tune without having to go to the hobby shop over and over again. tires are one thing you may need to have multiple sets of to get the proper ones. but you can avoid this by asking around and finding out what tires the fast guys run.
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  29. #29
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    I'm still up in the air on shock oil weight, I think I'm going to try 35 front and 32.5 back.
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  30. #30
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    Quote Originally Posted by adonismp82 View Post
    I'm still up in the air on shock oil weight, I think I'm going to try 35 front and 32.5 back.

    Sounds like a good place to start with 2-hole pistons.

  31. #31
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    Quote Originally Posted by PushRod View Post
    Doesn't that hurt you on traction though? Every surface is different of course, and I don't know what you're running on, but when I stiffened up my son's Slash on loose dirt, he'd spin out quite a bit due to lack of traction. Of course he didn't flip as often, but I still need to find the sweet spot for him.
    I don't run offroad much, almost all pavement except for my track sl2sh which has much softer springs. So the stiff ride was for speed runs up and down the street.
    My Black & Blue Rally is faster than your color...

  32. #32
    RC Turnbuckle Jr. 08kgraves's Avatar
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    Quote Originally Posted by adonismp82 View Post
    I'm still up in the air on shock oil weight, I think I'm going to try 35 front and 32.5 back.
    i personally wouldnt start with less than 40w myself.
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  33. #33
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    Quote Originally Posted by 08kgraves View Post
    i personally wouldnt start with less than 40w myself.
    I also have a Losi 4X4 and it weights more than my Slash and we use 35w or lighter weight oil. Why do we use a heaveir weight oul on a lighter truck? Now i know that comparing Losi and Traxxas is like comparing apples and oranges but the concept is still the same.
    Last edited by adonismp82; 09-11-2012 at 01:02 PM.
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  34. #34
    RC Turnbuckle Jr. rag6's Avatar
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    It depends on how bumpy the track is. If the surface has ruts, and/or is very bumpy, without large jumps, 30-35 wt oil is not out of the question, even on a slash. Just remember that the springs need to be matched to the oil...
    Wanna bash at Greenwood Bashplex in Pittsburgh ???

  35. #35
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    I'm running it on an outdoor 1/8 scale track in San Antonio Tx, medium jumps. The fast guys (2WD SC) make around in about 35-40 sec. S maybe I should go up to 40wt +.
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  36. #36
    RC Turnbuckle Jr. O.G.'s Avatar
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    Quote Originally Posted by PushRod View Post
    Doesn't that hurt you on traction though? Every surface is different of course, and I don't know what you're running on, but when I stiffened up my son's Slash on loose dirt, he'd spin out quite a bit due to lack of traction. Of course he didn't flip as often, but I still need to find the sweet spot for him.
    Yea they didn't work very well on the track. They quickly went to my bashing slash

    I'm now using losi green-front, blue-rear and that seems to work pretty well. But, the front almost feels too soft coming off jumps.
    My Black & Blue Rally is faster than your color...

  37. #37
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    Read-on there you professionals-I know it's a lot to take-in........LOL...........you just might learn something. Pay the most attention to fredswain's posts....

    http://www.rctech.net/forum/electric...ber-links.html
    Last edited by Old Ezra; 09-13-2012 at 12:03 AM.

  38. #38
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    Quote Originally Posted by 08kgraves View Post
    and your basing this off of what? shocks and springs also control how much body roll you have in corners. if you have to week of spring it will have to much roll therefore lifting the inside tire, if you have to heavy its just going to slide and not hook up as well.

    so please tell us oh great one on how it has absoulutely nothing to do with turning?

    if you still dont believe me then just read this

    http://www.circletrack.com/chassiste...s/viewall.html

    This ai'nt circle-track.......camber-links control roll, or as you call it body-roll...........the body don't roll....

  39. #39
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    Quote Originally Posted by harry697 View Post
    Wow! This is definitely a first for me!

    So, say hypothetically I'm running paved or even dirt oval. Should I just take the shocks off of my truck and replace them with solid camber links?

    The funniest thing is that most, if not all the oval guys I know run different spring/ oil combos from side to side, if not on all four corners. Why would they do something like that if shocks had nothing to do with turning?

    I'm not talking about going in circles. I have no clue to be honest, on the subject. I'm talking off-road, SCT. I get dizzy LTO'in
    Last edited by Old Ezra; 09-13-2012 at 12:05 AM.

  40. #40
    RC Turnbuckle Jr. 08kgraves's Avatar
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    Quote Originally Posted by Old Ezra View Post
    This ai'nt circle-track.......camber-links control roll, or as you call it body-roll...........the body don't roll....

    ok fine, then how come in torc racing (the off road championship) the people running out front personally say that they could do so because they had the proper shock/spring setup for the track?

    ill just leave it at that. im not going to bother arguing with you and your 26 posts that i guess made you know everything when you have multiple other people saying the same thing.

    yes these other things matter as well that you are saying i wont deny that one bit, and im sure nobody else will either. but to say that shock oils, spring stiffness and anything to do with the shocks themselves have nothing to do with getting around a track faster you are dead wrong. and if you think so then how about you take a lap around a track with no shocks or springs even on your car and see how well it works out for you? you can post a video for us as well to prove that it did not affect anything what so ever. this is extreme yes but for example is the same as having to light of a spring and always bottoming out from anything. bottoming out slows you down. spring stiffness will matter even more for the size of the jumps. the bigger the jumps and rougher the landings the stiffer the springs you will need. and then shocks controls spring movement. so to light of oil and your car will be bouncing all over the place. to heavy of oil and your car cant absorb the landings like it should.

    these statements i have just made are not opinions they are facts of many things including physics.
    Last edited by 08kgraves; 09-13-2012 at 12:35 AM.
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