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What can a 2.4 engine really be reved up to without failing.

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Old Oct 14, 2007, 10:32 PM
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What can a 2.4 engine really be reved up to without failing.

Ive done some research but I either read that the 2.4 engine can be reved to 7800 safely or 8000-8500 safely which is it?
Old Oct 14, 2007, 10:35 PM
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I believe its around 8.2k and from my understanding the 2.0 are made to be high revving demons and make way more hp then tq. However, the 2.4 are straight out torque mosters.
Old Oct 14, 2007, 10:37 PM
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Originally Posted by drano7823
I believe its around 8.2k and from my understanding the 2.0 are made to be high revving demons and make way more hp then tq. However, the 2.4 are straight out torque mosters.
the short rod or long rod type 2.4?
Old Oct 14, 2007, 10:38 PM
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What about a 2.4 destroked to a 2.1? Isn't that what AMS has in their Dragster? I hear those can rev up to 10K or so.
Old Oct 14, 2007, 10:41 PM
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Very close to a 2.0 for big turbos.
Old Oct 15, 2007, 05:28 AM
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no, ams has a 2.0 in their drag car.
Old Oct 15, 2007, 09:05 PM
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I thought AMS had the 2.3RR motor in there car.
Old Oct 15, 2007, 09:07 PM
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I believe AMS is using the 2.1 in both their drag and road race cars. I think they just switch the turbo out.
Old Oct 15, 2007, 09:17 PM
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https://www.evolutionm.net/forums/sh...d.php?t=298457
Old Oct 16, 2007, 11:00 AM
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Good find!
Old Oct 16, 2007, 11:01 AM
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Originally Posted by chrsevx
Ive done some research but I either read that the 2.4 engine can be reved to 7800 safely or 8000-8500 safely which is it?
Depends on piston speeds and weight of the rotating assembly, especially pistons/rods.
Old Oct 16, 2007, 11:04 AM
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actually ams is using a 2.3 35R combo in the time attack car from last words of eric.

and a 2.1 in the drag car with either a 42R or a 45R I don't know if they switched turbo's on the drag car.
Old Oct 16, 2007, 11:06 AM
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2.1 for ams last time i checked and it would depend on what you wanted to do with the car to me and the set up i kno your asking what can it be reved to but just wondering what are you gonna do with that 2.4 ?
Old Oct 16, 2007, 11:10 AM
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wow people got off topic real quick


7500rpm is a very safe rpm max to set it at.

But if you want to push it hard 7800rpm max anything past that you better make sure you check rings, clearnce, plugs once and a great while.
Old Oct 16, 2007, 03:48 PM
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YES! someone knows about it haha
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