BigRich82 Posted August 7, 2016 Share Posted August 7, 2016 Hi everyone just brought a 4.6 hpi trugger running 20% nitro. Is a R5 cold plug ok to use? Not sure on plugs thanks Quote Link to comment Share on other sites More sharing options...
boombox Posted August 7, 2016 Share Posted August 7, 2016 (edited) 2 hours ago, BigRich82 said: Hi everyone just brought a 4.6 hpi trugger running 20% nitro. Is a R5 cold plug ok to use? Not sure on plugs thanks R5's are cold plugs which are suited for summer conditions, personally I use Os no 8 glow plugs on my tt4.6 Edited August 7, 2016 by boombox 1 Quote Link to comment Share on other sites More sharing options...
BigRich82 Posted August 8, 2016 Author Share Posted August 8, 2016 Thanks alot. Ive got some R5 will they be ok for now? I will order some 8's thanks for the help. Quote Link to comment Share on other sites More sharing options...
boombox Posted August 8, 2016 Share Posted August 8, 2016 2 hours ago, BigRich82 said: Thanks alot. Ive got some R5 will they be ok for now? I will order some 8's thanks for the help. Yep R5 will be fine Quote Link to comment Share on other sites More sharing options...
J.K Posted August 8, 2016 Share Posted August 8, 2016 Generally go for a cooler plug in the summer and hotter in the winter. However 8 is a good all-rounder for all-year running. Remember to re-tune after changing plugs. 1 Quote Link to comment Share on other sites More sharing options...
locky Posted August 12, 2016 Share Posted August 12, 2016 I wish the ambient temps were hot here like in Spain where just came back. Not sure need to change plug due to current ambient temp. I thought glow plug terms relate to nitro % and not ambient temp. This maybe useful... RULES OF THUMB TO LIVE BYUse a hot plug with low nitro (less than 25%), and a cold plug with high nitro (more than 25%). If you remove the glow starter from you idling engine, and notice an immediate drop in RPM, you may need a hotter plug or more nitro. If your engine has a tendency to backfire a lot, you may be using a glow plug that's too hot, or you may need fuel with less nitro. Most hot plugs can take up to 2.0 volts starting power without burning up, while most cold plugs prefer 1.2 to 1.5 volts starting power. Quote Link to comment Share on other sites More sharing options...
Ian w Posted August 12, 2016 Share Posted August 12, 2016 OS 8 all fuels all weathers Quote Link to comment Share on other sites More sharing options...
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