Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Compression Ratio Calculation
View Single Post
  #7 (permalink)  
Old 09-02-2012, 12:55 PM
F-BIRD'88's Avatar
F-BIRD'88 F-BIRD'88 is offline
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,153
Wiki Edits: 0

Thanks: 5
Thanked 380 Times in 374 Posts
You are brewing over and number that will not tell you much.

All that matters is it goes like hell and does not knock.
If you want to try a lower octane fuel to see if its enough, just do it.
Esso 92 or Pioneer 93. It will either rattle or it won't.
I can tell you neither are quite as good as the Ultra 94.
I have tested them all (local pump gas)
and this fuel makes a bit more power too. Key word: A BIT

If you need the detonation protection and like the slight performance gain:
Its worth the slight extra cost at the pump.
Pistons and rebuilds are expensive.

The R45TS plugs are a good city stop and go plug. "stock" heat range

The slightly cooler performance oriented RV8C (R42t) is a bit cooler heat range to give more detonation threshold
with lead foot WOT driving or towing where engine throttle load is higher. .035" gap gets it done very time.

I have been there done that as far as 305HO heads on a 350 goes...so....

If you really want to know the real cr you need to yank the heads off.

Last edited by F-BIRD'88; 09-02-2012 at 01:00 PM.
Reply With Quote