Serpent 977 Viper
#271
What do you mean the longer new version 977 ball cups works fine? it's either the ball cup or the shock shafts needs to be longer or else it can't achive 8 droop!
#272
Tech Apprentice
My viper 977 has exactly the same problem. Could anyone tell me how to fix it? Thanks!
#273
Tech Regular
Just leave the ball ends further out on the shafts i.e. making the rears 11.75mm and the fronts 11mm worked for me. I've even co-opted a pair of last years rears for spares using front eyelets not sur eof the body to eyelet dimension but the overall length was good.
#274
Tech Regular
iTrader: (2)
I've even tested a 6 and a 7 rear downstop with the stock 977 ball ends. Rick Davis' reply is 100% correct.
You don't have to screw the ball ends all the way in on any brand rc models on the shock shaft threads. As long as the ball end grabs the threading nicely then they're fine. They should be 1mm below the 3mm screw after you get your downstop set. You can unscrew a little at a time and show some threading until the desired length is achieved. If showing some thread is annoying you, try the 966 ball ends which seem to have a longer neck so maybe better? I didn't try them but you could also attempt to use them instead. The new 977 spring cup holder should be fine even with the 966 long shock ball ends.
Just try this... no stress.
Paulie B
#275
Tech Apprentice
Sorry, I didn't mean to create a negative subject. I was trying to help by giving a tech tip without trying to be a know it all. I went back and read my original post and realize that it looks like I was asking for help. Thanks for the reply's Paulie and Rick. Both of you have built and raced many Serpent Kits and your knowledge is valuable and very important to these threads. Good luck to everyone racing the 977 this year! It' been a fun kit to build and I'm looking forward to racing it this year.
#276
I've had the ball end pop out from the shock shaft when I left them half threaded in on the original 977 shock shaft. Perhaps Serpent could make slightly longer rear shock shafts to allow for easier adjustability of rear arm droop (I know it's always cost vs. what one can get away with ...)
Tried the longer shock RCM shaft from the 966 but they turned out to be too long.
#277
Tech Initiate
I think RCM Shock shaft should be longer for the working piston in the middle of the shock body. Currently working on the lower end.
I'm thinking of using RCM Shock Shaft Long (160103). Do you know the difference in length between RCM Shock Shaft Long (160102) and RCM Shock Shaft Long (160103)?
I'm thinking of using RCM Shock Shaft Long (160103). Do you know the difference in length between RCM Shock Shaft Long (160102) and RCM Shock Shaft Long (160103)?
#278
#279
Tech Initiate
Moving to another topic, I see some drivers use an oil filter between the tank and the carb, but some drivers don't use it (I'd say most pics of the pro's cars don't use it).
Any reason why NOT to use one? I heard something about using it provides more "even flow" of nitro to the carb during certain seasons (or this is mere snake oil tomfoolery BS that's being whipped up?). Any one have any opinions on this?
Any reason why NOT to use one? I heard something about using it provides more "even flow" of nitro to the carb during certain seasons (or this is mere snake oil tomfoolery BS that's being whipped up?). Any one have any opinions on this?
#280
Tech Regular
Moving to another topic, I see some drivers use an oil filter between the tank and the carb, but some drivers don't use it (I'd say most pics of the pro's cars don't use it).
Any reason why NOT to use one? I heard something about using it provides more "even flow" of nitro to the carb during certain seasons (or this is mere snake oil tomfoolery BS that's being whipped up?). Any one have any opinions on this?
Any reason why NOT to use one? I heard something about using it provides more "even flow" of nitro to the carb during certain seasons (or this is mere snake oil tomfoolery BS that's being whipped up?). Any one have any opinions on this?
#281
Tech Elite
Thread Starter
The only reason I can think of for using an filter, or even only a filter body, between tank and carb, is the extra fuel you have, in case the car flips over. To have enough time to put it on its wheels again.
#282
Tech Initiate
And the filter body between the tank and the pipe? What is the reason?
#283
Tech Regular
Guess you're referencing the cooling chamber - it's an attempt to get some of the exhaust temp reduced on it's way to the tank , also the extra volume in the system seems to make the pressure more consistent.
#284
903594 28T option alu pulley
Guys/Gals, I am building my beautiful 977, and decided to install option parts during build. However, the 2.5x8 screws used for orig plastic front pulley are too long for option part. Has anyone else run into this problem? Normally I would just grab a shorter screw, but these are those pesky 2.5 screws...which of course I dont have any. Just putting out there before I whip out the dremel...