octane

[redcoats1976]

Originally Posted by Silveradoss573

When we send our engine off to Sonny's for a refresh, we'll be sure to inform them that engine masters and hudson773 say that 87 pump gas will be just fine and any more octane is not needed....LMFAO!!!!

just looking at that one i think the dealer aint gonna back that warranty anyway.

[gtstorey]

Originally Posted by hudson773

according to GM IT IS!. under all driving conditions the car is designed for, including high performance driving. you can pay for what you want and fool yourself or watch the tests.

I did watch it, at least the one with the LS. I think maybe they did another with an old school big block. My take away was some what different from yours, since they all agreed they wouldn’t run the 87 on the street since it took away a lot of the safety factor.

[Silveradoss573]

Originally Posted by redcoats1976

just looking at that one i think the dealer aint gonna back that warranty anyway.

Best engine we have ever ran no doubt. 👍

[demonspeed]

Originally Posted by FasNuf

It's simple. GM designed the ECM to use a high octane table for 91 octane or better which the engine is tuned to run as engineered. The low octane table GM put in as a safety margin incase you had 87 or better in the tank by mistake or necessity. The Low table is referenced only after the knock sensors detect knock. When it hears knock, it references the low table and pulls timing to reduce the knocking.

It does not sense what octane gas your running and reference the low table.

It first has to hear knock and knock isn't good for a gas engine.This also reduces the power.

This.

You know…. I wonder if Hudson and Fasnuf are the same guy and this is just a really well played April fools joke…

[FasNuf]

Originally Posted by demonspeed

This.

You know…. I wonder if Hudson and Fasnuf are the same guy and this is just a really well played April fools joke…

No.

[silversleeper]

Originally Posted by Silveradoss573

When we send our engine off to Sonny's for a refresh, we'll be sure to inform them that engine masters and hudson773 say that 87 pump gas will be just fine and any more octane is not needed....LMFAO!!!!

I have not kept up on pro engines.
https://www.sonnysracingengines.com/...racing-engines
1000 cubic inches and 2000hp and up to 3000hp on nitrous. That was shocking along with the price tag, $100,000
As they used to say, Alrighty then


Yesterday I was buying some bread in Walmart to go along with my Costco Polish sausage. It's up to $3 unless you get the generic Walmart brand which I did, only 93cents a loaf. Thanks to God I'm not poor but I'm not going to be buying a $100k engine anytime soon for fun. In fact I need to build a second garage which could be done with foundation and everything for under half that.

[NOT A 45]

Originally Posted by hudson773

I built my first engine in 1966, my little toe knows more than you. we were talking about camaros, correct, not foreign crap

Takes a little more than a screwdriver, feeler gauge, and a 3/16 hex to work on these engines. lol I needed a good laugh this morning!

[NOT A 45]

Originally Posted by FasNuf

It's simple. GM designed the ECM to use a high octane table for 91 octane or better which the engine is tuned to run as engineered. The low octane table GM put in as a safety margin incase you had 87 or better in the tank by mistake or necessity. The Low table is referenced only after the knock sensors detect knock. When it hears knock, it references the low table and pulls timing to reduce the knocking.

It does not sense what octane gas your running and reference the low table.

It first has to hear knock and knock isn't good for a gas engine.This also reduces the power.

Exactly!

[hudson773]

Originally Posted by NOT A 45

Takes a little more than a screwdriver, feeler gauge, and a 3/16 hex to work on these engines. lol I needed a good laugh this morning!

YES it does, takes a dyno and lots of testing, not someone's opinion. here is the testing.
https://youtu.be/ryqyTPfNj1Q