matthew619 Posted August 7, 2011 Share Posted August 7, 2011 hi people i have a hpi trophy 4.6 and my brakes are terribly slow and sluggish how do i make them more responsive and stop the car from rolling for about 10 foot before stopping do i need better servo or just tighten something up ?? please help me out thanx matt Quote Link to comment Share on other sites More sharing options...
joew39 Posted August 7, 2011 Share Posted August 7, 2011 They need adjusting properly. They come very loose from the factory, would recommend taking the gearbox out and adjust the brake retaining screws ensuring not to go too tight that they drag, then set the servo rods nice and even is also worth upgrading the servo. I found even after adjustment mine were slow so fitted an updated servo. Would stop on a pin head after that. Very good brakes after a little adjustment. Also how old is your truggy? I managed to get hpi to change the servo as mine went weak after about 3 runs. Quote Link to comment Share on other sites More sharing options...
badger906 Posted August 7, 2011 Share Posted August 7, 2011 you ideally need a fast and torquey servo. allowing the brakes once set correctly to bite fast and strong. also have a look at fitting answer rc brake springs. they sit on the rods between the 2 pads putting constant pressure against the pads keeping them open, so the brakes dont drag, and stops them glazing Quote Link to comment Share on other sites More sharing options...
bruces Posted August 7, 2011 Share Posted August 7, 2011 mine are crap too,thought thats just how they were,what needs to come out to get the gearbox out then? Quote Link to comment Share on other sites More sharing options...
joew39 Posted August 7, 2011 Share Posted August 7, 2011 If I remember right I took the rear suspension unit out to free the centre shafts, took off the throttle/brake servo arm then released the gearbox/ centre diff. Wasn't much of a job to do and well worth it. It makes the truggy brakes awesome. With the updated servo too mine would lock all 4 under heavy braking! Quote Link to comment Share on other sites More sharing options...
bruces Posted August 8, 2011 Share Posted August 8, 2011 I see there two screws that hold the brakd pads in are these adjustable as i see there is thread exposed? Quote Link to comment Share on other sites More sharing options...
Jamem Posted August 8, 2011 Share Posted August 8, 2011 Put a powerHD servo on the throttle/brakes, will make a huge difference! My Hyper went from being terrible on the brakes to being able to lock up if you were a little hard on the brakes! I'm just converting my hyper to electric, so selling the powerHD if your interested? Quote Link to comment Share on other sites More sharing options...
bruces Posted August 8, 2011 Share Posted August 8, 2011 GHow much mate? Quote Link to comment Share on other sites More sharing options...
joew39 Posted August 8, 2011 Share Posted August 8, 2011 Yeah screw just need wing in a bit evenly to take some of the slack out of the pads. Make sure you leave about 1mm gap between pads and disc after ( 1mm with disc pushed against inner pad then measured on outer pad) Quote Link to comment Share on other sites More sharing options...
Jamem Posted August 8, 2011 Share Posted August 8, 2011 GHow much mate? Quote Link to comment Share on other sites More sharing options...
bruces Posted August 8, 2011 Share Posted August 8, 2011 What rating is it? Is it also wise to beeth up the steering servo too? Quote Link to comment Share on other sites More sharing options...
Jamem Posted August 8, 2011 Share Posted August 8, 2011 SPECIFICATIONS: Quote Link to comment Share on other sites More sharing options...
bruces Posted August 8, 2011 Share Posted August 8, 2011 Il have it,what is the rating you look at regarding servos? Quote Link to comment Share on other sites More sharing options...
Jamem Posted August 8, 2011 Share Posted August 8, 2011 Sent you a message Speed and torque are the important bits. You want lots of both for steering, throttle/brake speed is less important (a nitro engine can only respond so quickly!), but torque is critical for strong brakes. Quote Link to comment Share on other sites More sharing options...
bruces Posted August 8, 2011 Share Posted August 8, 2011 Tried to adjust the pad retaining screws up tonight,man there tight so ended up leaving em.. Quote Link to comment Share on other sites More sharing options...
djr2096 Posted August 9, 2011 Share Posted August 9, 2011 you ideally need a fast and torquey servo. allowing the brakes once set correctly to bite fast and strong. also have a look at fitting answer rc brake springs. they sit on the rods between the 2 pads putting constant pressure against the pads keeping them open, so the brakes dont drag, and stops them glazing I was thinking about putting springs on my D8's breaks. What am I looking for spring wise? Quote Link to comment Share on other sites More sharing options...
bruces Posted August 9, 2011 Share Posted August 9, 2011 If I remember right I took the rear suspension unit out to free the centre shafts, took off the throttle/brake servo arm then released the gearbox/ centre diff. Wasn't much of a job to do and well worth it. It makes the truggy brakes awesome. With the updated servo too mine would lock all 4 under heavy braking! hi did you mean you just removed the rear suspension unit out by removing the four screws from underneath? Quote Link to comment Share on other sites More sharing options...
joew39 Posted August 9, 2011 Share Posted August 9, 2011 Yeah and the pinch bolt holding the brace bar on. With the gearbox out you can get a decent screwdriver on the pad screws to adjust them as they are very tight. Quote Link to comment Share on other sites More sharing options...
Phil_15 Posted August 10, 2011 Share Posted August 10, 2011 I dound putting a hump pack in made a big difference aswell due to giving the servos more power,also fitted power hd servo and stops on its noseI found putting a hump pack in made a big difference aswell due to giving the servos more power,also fitted power hd servo and stops on its nose Quote Link to comment Share on other sites More sharing options...
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