Technical > Matt Shaff's Engine Shop
Spark Plug indexing
George:
Thanks for the insight. I don't see it worth the time or the money for my setup. George
I am going to work on getting more heat in the engine before a run.
coupemerc:
On the South West Junior Fuel Association website, Jon Hansen posted some interesting thoughts on engine temperature for Jr Fuel engines. The posting was a while back but you may want to go check that out. Sounds like you have a pretty honking 355 there George. What is your car weight?
George:
Our combination weight is close to 1500. That's with driver etc. We run an on board battery , full length Reid case. Aluminium 8 3/4 case and spool, drilled axles.
masracingtd1167:
--- Quote from: coupemerc on March 23, 2013, 05:37:16 PM ---I'm shooting for the spark plugs having the open side of the gap somewhere between facing down towards the piston top and the intake valve. It's on a Kinsler 2.875" stack injector, methanol and CR will be around 16:1 (maybe). I have no knowledge on what indexing is worth on the dyno or track.
[/q Chuck when you run comp everything matter's !Comp has to be my favorite class I have worked on Billy Griffin's comp team for 10 year's and really enjoy it . The time and effort that goes into these cars is unreal . These guy's deserve a lot more credit than they get .
--- End quote ---
George:
--- Quote from: coupemerc on March 24, 2013, 06:08:47 AM ---On the South West Junior Fuel Association website, Jon Hansen posted some interesting thoughts on engine temperature for Jr Fuel engines. The posting was a while back but you may want to go check that out. Sounds like you have a pretty honking 355 there George. What is your car weight?
--- End quote ---
I found the article (posted almost 2 years ago)
. Very interesting! Thanks. George
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