Glow plugs

dr gary turner · Feb 3, 2023

Terry Keeley said:
Ran standard OD287's for years but the dyno said a colder plug made more HP so I've switched to the 289.

The 287 and even the 277 work better when the air temps get below 10C/50F.

NOW THAT IS GOOD INFORMATION
Based on objective data.

Very interested in other findings from dyno testing.

Tim Kish · Feb 4, 2023

Terry Keeley said:
Ran standard OD287's for years but the dyno said a colder plug made more HP so I've switched to the 289.

The 287 and even the 277 work better when the air temps get below 10C/50F.

Any changes in reliability or tuning?

Terry Keeley · Feb 4, 2023

dr gary turner said:
NOW THAT IS GOOD INFORMATION
Based on objective data.

Very interested in other findings from dyno testing.

Gonna crank it up again soon after trimming another 1/4" off the wheel and might have some info to share then.

Tim Kish said:
Any changes in reliability or tuning?

The only difference I found was that you havta be extra careful with the needle, the heavier element will hang in and you can hurt stuff where the hotter plugs will act as a fuse.

Joe Warren · Feb 4, 2023

Tim Kish said:
Plugs in general Joe, big engines or small.
I have 91RS not 101's

Yes the plug is But the Packing used & the wire Is Not, Odonnell 289 289T Has a Double wad packing & can stand a lot of abuse before failure, MC8 is no were as stable on the wire as a MC9. Small motors dont seem to care. BIG BLOCK 91 & 101 Motors do.

Joe Warren · Feb 4, 2023

Terry Keeley said:
Gonna crank it up again soon after trimming another 1/4" off the wheel and might have some info to share then.

The only difference I found was that you havta be extra careful with the needle, the heavier element will hang in and you can hurt stuff where the hotter plugs will act as a fuse.

Fuse,

pow.....

Timbo Whalen · Feb 4, 2023

Wasted wages said:
Al Hobbs sells plugs... good prices...

https://www.intlwaters.com/threads/2022-glow-plugs4-standard-plugs-at-4-00.82660/

Frank, the Rossi's are as good as anything else out there now, and before, IMO. And a lot less expensive. Been using them since the 80's.

Grimracer · Feb 4, 2023

os 8 is the best plug have ever used in a 21.. my experience.

Grim

Glow plugs

Help Support Intlwaters:

dr gary turner

Well-Known Member

Tim Kish

Well-Known Member

Terry Keeley

Well-Known Member

Joe Warren

Well-Known Member

Joe Warren

Well-Known Member

Timbo Whalen

Well-Known Member

Grimracer

Well-Known Member

Similar threads

Latest posts

Glow plugs

Help Support Intlwaters:

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Similar threads

Join the conversation!

Join today and get all the highlights of this community direct to your inbox. It's FREE!