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

Nitrous on stock internals?

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Old Jan 21, 2007 | 03:16 PM
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BluetoGreyIonDriver's Avatar
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Nitrous on stock internals?

Im sure this has been discussed before....... but what could a stock 2.4L auto tranny take from nitrous?...... with STOCK internals?

Could it take a 50 shot? and stuff not damage anything?
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Old Jan 21, 2007 | 03:20 PM
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on a 2.4 I wouldnt know I belive it can handle a 50 shot but dont take my word for it because I dont know what the vvt would do on N2O. About the tranny It will handle it no worrys there.

I going to be running a 75 shot on my 2.2 with stock internals.
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Old Jan 21, 2007 | 06:01 PM
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Originally Posted by That Cobalt LT Guy
on a 2.4 I wouldnt know I belive it can handle a 50 shot but dont take my word for it because I dont know what the vvt would do on N2O. About the tranny It will handle it no worrys there.

I going to be running a 75 shot on my 2.2 with stock internals.
vvt shouldnt affect nitrous any......your just shooting the **** right into the combustion chamber i believe ....yea you will be ok on stock internals....
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Old Jan 21, 2007 | 06:04 PM
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Originally Posted by mike25
vvt shouldnt affect nitrous any......your just shooting the **** right into the combustion chamber i believe ....yea you will be ok on stock internals....

Thanks I wasnt to shure and didnt want to give him info that could blow his motor up.

Whats the max shot he can run I know the 2.2 can handle 75 on stock internals.
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Old Jan 21, 2007 | 06:26 PM
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Originally Posted by That Cobalt LT Guy
Thanks I wasnt to shure and didnt want to give him info that could blow his motor up.

Whats the max shot he can run I know the 2.2 can handle 75 on stock internals.
that im not sure of but id say it can handle whatever the 2.2 can
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Old Jan 21, 2007 | 06:30 PM
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how fast will a 2.2 be with a 75 shot and exhaust mod s
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Old Jan 21, 2007 | 06:38 PM
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Originally Posted by Red2.4SS/SC
how fast will a 2.2 be with a 75 shot and exhaust mod s
Well unlike every body else Im not turboing I have intake full exhaust header and all. and will be gitting comp stage 3 cams with the smt piggy back. And a 75 shot of N2O add all that up I have figured 223 Hp at the wheels. I dont know how fast it will be I only know how much horse power it will gerate.
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Old Jan 21, 2007 | 08:04 PM
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BluetoGreyIonDriver's Avatar
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so what would be a good SAFE kit to use? the NX ones? does NOS make a kit to work wtih ourcars?
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Old Jan 21, 2007 | 08:08 PM
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Zex makes the safest kits on the market. Im deff going zex.
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Old Jan 21, 2007 | 08:16 PM
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what kinda shot you guys think I couls handle with my upgraded valvetrain????????????
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Old Jan 21, 2007 | 08:20 PM
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Originally Posted by g5mike
what kinda shot you guys think I couls handle with my upgraded valvetrain????????????
If vvt doesnt affect N2O then a 50 shot will be safe, a 75 shot is acualy pushing the 2.2 and the 2.2 has a lower compresion then the 2.4, so I would only recomend a 50 shot on a 2.4.
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Old Jan 21, 2007 | 08:23 PM
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Originally Posted by That Cobalt LT Guy
If vvt doesnt affect N2O then a 50 shot will be safe, a 75 shot is acualy pushing the 2.2 and the 2.2 has a lower compresion then the 2.4, so I would only recomend a 50 shot on a 2.4.
but I have the JBP valvetrain,its supposed to handle more?
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Old Jan 21, 2007 | 08:26 PM
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My cobalt:

55 shot, Zex Nitrous kit. Fastest quarter mile time: 15.2@89mph

Stock Ecotec internals can take a 75 shot, for about 10,000 miles, going to the drag strip every weekend. The clutch let go before anything else did. This was an a 2004 Cavy, 5 speed.

Originally Posted by g5mike
but I have the JBP valvetrain,its supposed to handle more?
Top ring land on the pistons is whats holding you back, not the valvetrain.

Plus it is usually considered unsafe to shoot more then a 75 shot without going to a direct port kit. Not to mention our intake manifolds arent the best for cylinder to cylinder distribution.

Last edited by TurboBlackBalt; Jan 21, 2007 at 08:26 PM. Reason: Automerged Doublepost
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Old Jan 21, 2007 | 08:32 PM
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Originally Posted by g5mike
but I have the JBP valvetrain,its supposed to handle more?
No upgrading your valve train will not allow you to handle more N2O, But it will make the
N2O more efficent. The only way you can handle more is with upgraded pistons, rods. 2 step colder plugs and retard the timing on the motor then you will be able to handle a 150 shot of N2O. Thats out of my book.

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Old Jan 21, 2007 | 09:09 PM
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Originally Posted by That Cobalt LT Guy
No upgrading your valve train will not allow you to handle more N2O, But it will make the
N2O more efficent. The only way you can handle more is with upgraded pistons, rods. 2 step colder plugs and retard the timing on the motor then you will be able to handle a 150 shot of N2O. Thats out of my book.

yea id probably have to agree witht his statement for the most part...you might be able to handle a 75 shot right now....but it would be pushing it..even with your upgraded valvetrain.....pistons and rods and you will most definately be able to handle a 75 shot...
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Old Jan 22, 2007 | 12:01 AM
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Originally Posted by g5mike
but I have the JBP valvetrain,its supposed to handle more?
The problem would be you could still detonate with too big of a shot. I wouldn't go higher than a 75 wet shot to be honest, but I'm still semi-new to these engines.
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Old Jan 22, 2007 | 03:52 AM
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75 shot FTW! if the 2.2 can take it and the 2.4 is supposed to be stronger then you should have no problems...

running this shot on my 2.2 doesn't worry me in the least bit in terms of reliability. i have no doubts that I could be running the same setup 2 years from now with the same performance.
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Old Jan 22, 2007 | 04:40 PM
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whatever you do, if you are an auto i reccomend a window switch, and if you are a manual, get a window switch no matter what...you don't want to bog and have some nitrous backfire .

zex makes great kits that are very safe and well designed...nx also makes great kits, and although i have 0 experience with NOS, i have heard mostly good things....i would reccomend zex tho.
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