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What is considered Modern Engine? #5323591 01/15/20 04:01 PM
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Onetor Offline OP
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Serious question, that maybe subjective. *Define Modern Engine:

I'm always reading about modern engines in various contexts, mostly on BITOG.

Did modern engines begin with fuel injectors? 1990's (20th century) or 2000's (21st century) or earlier?


Opinions appreciated!


N = R* x fp x ne x fl x fi x fc x L
Re: What is considered Modern Engine? [Re: Onetor] #5323597 01/15/20 04:05 PM
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SubieRubyRoo Offline
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No definition given by Valvoline. I'd take it to mean one of two things: either an engine that has always required API SN or newer oil, or anything since the advent of mass-market GDI. Without official input, we'll never know for sure.


De omnibus dubitandum.
Re: What is considered Modern Engine? [Re: Onetor] #5323599 01/15/20 04:07 PM
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wallyuwl Offline
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According to Valvoline it is 2012+.

Re: What is considered Modern Engine? [Re: Onetor] #5323602 01/15/20 04:12 PM
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brages Online Content
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I think multi-port fuel injection, OBD2, and electronic ignition are kind of the baseline for modern engines, although it's a perspective thing I'm sure.

Other modern features:
aluminum block and heads
overhead cams (sorry GM fans)
four valves per cylinder
variable valve timing
direct injection

Re: What is considered Modern Engine? [Re: Onetor] #5323610 01/15/20 04:16 PM
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DriveHard Offline
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I would class it by emissions...anything that meets the most up to date (stringent) emissions requirements.


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Re: What is considered Modern Engine? [Re: Onetor] #5323612 01/15/20 04:16 PM
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old1 Offline
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I know it is not true, but to an old-timer like me, anything that doesn't have a carburetor, and points in the ignition is modern. LOL


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Re: What is considered Modern Engine? [Re: Onetor] #5323618 01/15/20 04:23 PM
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Modern is a word advertisers use. Slides with the decades but consumers love it.


If you want the job done right......do it yourself.
Re: What is considered Modern Engine? [Re: Onetor] #5323620 01/15/20 04:24 PM
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UG_Passat Offline
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Modern by what standard or timeframe?


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Re: What is considered Modern Engine? [Re: Onetor] #5323628 01/15/20 04:29 PM
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JohnnyJohnson Online Content
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You don't need a definition to support any thing you hype!


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Re: What is considered Modern Engine? [Re: Onetor] #5323630 01/15/20 04:31 PM
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Imp4 Offline
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I think there are a couple of stages here.
1st stage: electronic ignition and port fuel injection.
2nd stage: aluminum blocks/heads and overhead cams.
3rd stage: GDI/turbo combination.

Re: What is considered Modern Engine? [Re: UG_Passat] #5323631 01/15/20 04:33 PM
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Originally Posted by UG_Passat
Modern by what standard or timeframe?




That is my point! I couldn't find one. Just wanted different perspectives and opinions.


N = R* x fp x ne x fl x fi x fc x L
Re: What is considered Modern Engine? [Re: Onetor] #5323649 01/15/20 04:52 PM
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Marketing at its finest.


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Re: What is considered Modern Engine? [Re: Onetor] #5323699 01/15/20 06:06 PM
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OBD II and up is "modern" in my book.


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Re: What is considered Modern Engine? [Re: Onetor] #5323705 01/15/20 06:12 PM
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ls1mike Offline
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You do know the first OHC engine was built in or around 1902. Nothing modern about that. Just a different way of opening and closing the valves.

I would say OBDII and up. It really allowed you to get into the software/computer to troubleshoot and change settings.

Tolerances are much better now too.

Last edited by ls1mike; 01/15/20 06:12 PM.

Mike
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Re: What is considered Modern Engine? [Re: Onetor] #5323712 01/15/20 06:22 PM
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Overhead valve, so Oldsmobile and the Rocket V8 in 1949 I would consider modern. LOL

The SBC from 1955 had a great run and the LS motors still carry that torch.

Induction, fuel introduction, and exhaust changed a little, but not the "core engine".

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