Supra1988T
RC Newbie
- Messages
- 14
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- RC Driving Style
I bought a Traxxas Revo 3.3 and as I completed the break in I smashed into a tree at full throttle. New RPM control arms, steel cv shafts, a slipper clutch, Motorsaver air filter and a failsafe later and its back up and running. I bought a venom failsafe with the temperature monitoring for added protection. I installed the temp probe on the base of the head, 180 degrees from the exhaust port just as described in the manual. Now as the engine heats up the venom shows a much higher temperature than the IR heat gun does at the top of the head, which is to be expected but the peak temp is unnerving.
I had set the failsafe to reduce throttle to 20% if temps reached 302F. Well it hit 302 pretty fast and when I hit the head with the IR gun it only read 265F. The engine was still on the factory tune, blowing smoke and sounded good so I raised the max temp on the failsafe to 340F. Started bashing again and within a few minutes it was cutting throttle again. I drove the truck back over and checked with the gun and got a reading of 310F. The truck seems to be running great and feel like it could be leaned out more, its still blowing smoke. But I'm scared of those temps so I richen up the HSN. Temps are still high and now it feels like its too low on power. Its so rich that its dripping fuel from the exhaust. I've never heard detonation except maybe once on deceleration. Everyone is going to say check for air leaks but its not running lean IMO. It still hasn't burned up the factory glow plug yet either. Ambient air was 55-65F today.
Should I just try and keep the temps around 300F with the heat gun? Tune by feel/ear? I'm kind of at a loss here guys because I feel like there is more power to be made but I don't want to toast my engine. Any help would be great. Thanks.
I had set the failsafe to reduce throttle to 20% if temps reached 302F. Well it hit 302 pretty fast and when I hit the head with the IR gun it only read 265F. The engine was still on the factory tune, blowing smoke and sounded good so I raised the max temp on the failsafe to 340F. Started bashing again and within a few minutes it was cutting throttle again. I drove the truck back over and checked with the gun and got a reading of 310F. The truck seems to be running great and feel like it could be leaned out more, its still blowing smoke. But I'm scared of those temps so I richen up the HSN. Temps are still high and now it feels like its too low on power. Its so rich that its dripping fuel from the exhaust. I've never heard detonation except maybe once on deceleration. Everyone is going to say check for air leaks but its not running lean IMO. It still hasn't burned up the factory glow plug yet either. Ambient air was 55-65F today.
Should I just try and keep the temps around 300F with the heat gun? Tune by feel/ear? I'm kind of at a loss here guys because I feel like there is more power to be made but I don't want to toast my engine. Any help would be great. Thanks.