This is the O.S. P3 “Ultra Hot” Turbo Glow Plug. Choosing the right glow plug is critical for peak engine performance and there are a number of different factors that will determine which plug you should use. Engine type, air–fuel mix, nitro percentage, and even air temperature are things that must be taken into consideration. What’s more, the ideal glow plug choice will change as conditions change. Keeping a range of glow plugs on hand will help you fine–tune glow heat and enjoy maximum performance in all conditions.
Generally, Hot plugs promote better idling and acceleration. If your engine runs rough or accelerates sluggishly, a hotter plug will help. Cold plugs produce more power and may improve performance if your engine runs hot. The downside is rougher idling and more difficulty in tuning.
Some other things to keep in mind are:
- The smaller the engine, the hotter the plug.
- The higher the nitro content, the colder the plug.
- The hotter the day, the colder the plug.
| Model | Heat Range | Description |
| P5 | Very Hot | For V-Spec and most .18-.28 off-road racing Turbo head engines, especially when the temperature is high or for leaner needle settings and high-nitro/high-rpm running |
| P4 | Super Hot | For V-Spec and most .18-.28 off-road racing Turbo head engines |
| P3 | Ultra Hot | For V-Spec and most .18-.28 off-road racing Turbo head engines |
This product was added to our catalog on April 13, 2006
Anonymous Verified Owner Thursday, Jul 26 2012 (about 13 years ago) O.S. P3 Turbo Glow Plug “Ultra Hot” Use these plugs all the time and they seem to work great. They survive engine break-in and will keep going for a few gallons in some instances. As with any plug it only takes a very small impurity to damage the element. 3 customers found this review helpful. Christopher Craig Verified Owner Tuesday, Aug 27 2024 (about a year ago) O.S. P3 Turbo Glow Plug “Ultra Hot” The BEST glow plug on the market right now! It provides exceptional glow performance for all your OS glow plug needs. I’ve had great success and reliability with these plugs, and they’ve become a staple in my racing program. Highly recommended for their consistent quality and effectiveness. Five stars for sure! Anonymous Monday, May 16 2011 (about 14 years ago) O.S. P3 Turbo Glow Plug “Ultra Hot” lot of ppl fun this plug and its ok and all butt i had one that lasted me a week whats up with that LOL!! 2 of 10 customers found this review helpful. View all reviews
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