Oversimplified CR and Octane, but am I right

Newbies, and basic Stroker Recipes... Get started with your first stroker here!!
Post Reply
Hejl-No
Posts: 1
Joined: January 14th, 2021, 6:28 pm

Oversimplified CR and Octane, but am I right

Post by Hejl-No »

Is it so that if I'm just willing to use premium fuel and mostly drive like a grandpa that detonation isn't a worry with a sound build? I've already bought parts that will put me over 9:1. I just want more low end for off-roading, and occasional daily driving.
User avatar
Cheromaniac
I live here
I live here
Posts: 3180
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Cyprus
Contact:

Re: Oversimplified CR and Octane, but am I right

Post by Cheromaniac »

Static and dynamic compression ratio are but two of many factors that'll determine your engine's octane requirements. We might be able to predict what type of gas your engine might need based on the build specs, but ultimately it's only by driving the vehicle yourself where you'll really find out.
A build for mostly slow off-road driving will require plenty of low rev torque, and that dictates a short duration cam plus a modest (not more than 9.5:1) static compression ratio.
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car :mrgreen:
Post Reply

Who is online

Users browsing this forum: Ahrefs [Bot], Google [Bot] and 12 guests