2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

RPM performance tune Stage 2

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Old 10-21-2018, 08:13 AM
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RPM performance tune Stage 2

Hi there - RPM offers this performance tune.
RPM Stage 2 2.4L

Has anyone here tried it?

I hear a turbo or SC is the way to go with the 2.4L engine, but I'm wondering if these naturally aspirated options are worth it.

It would be great to reach 200 HP in a normally aspirated.

Last edited by OhSixBalt; 10-21-2018 at 10:39 AM.
Old 10-21-2018, 09:17 AM
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Also, I'm wondering how much power can you expect with a cat but no muffler or resonator - just a straight pipe?

Thanks!
Old 10-21-2018, 12:15 PM
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No not worth it to tune a n/a cobalt
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OhSixBalt (10-27-2018)
Old 10-22-2018, 05:10 PM
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You might be able to squeeze another 15-25hp out of it NA, but for the price of a supercharger kit these days, it would be a waste of time.
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Old 10-23-2018, 11:32 AM
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N/A Race engine:

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Old 10-27-2018, 07:29 AM
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All that power in a naturally aspirated is very cool.

The reason the Stage 2 naturally aspirated kit from RPM grabbed my attention is I thought the 36# injectors could also be used in a forced air situation like a super charger.

The kits are $1800 including supercharger and manifold, throttle body + other bits. Yeah it's not a lot of cash for what you get in return - a solid installation with reliable power.

Last edited by OhSixBalt; 10-27-2018 at 07:36 AM.
Old 11-05-2018, 08:27 PM
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Originally Posted by OhSixBalt
All that power in a naturally aspirated is very cool.

The reason the Stage 2 naturally aspirated kit from RPM grabbed my attention is I thought the 36# injectors could also be used in a forced air situation like a super charger.

The kits are $1800 including supercharger and manifold, throttle body + other bits. Yeah it's not a lot of cash for what you get in return - a solid installation with reliable power.
If you got $30k to spend and/or labor I'm sure you can make a reliable 300 hp NA Ecotec
Old 11-05-2018, 08:33 PM
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Originally Posted by steelmesh
If you got $30k to spend and/or labor I'm sure you can make a reliable 300 hp NA Ecotec
​​​​​​
I want 205 to 210 HP on the NA. But I'll take 200 HP if I can get it.

Last edited by OhSixBalt; 11-05-2018 at 08:57 PM.
Old 11-05-2018, 09:09 PM
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Originally Posted by OhSixBalt
​​​​​​
I want 205 to 210 HP on the NA. But I'll take 200 HP if I can get it.
That can probably be done for about 7-12k
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