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Old 07-22-2007, 11:30 PM   #1
Norco kid
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What is a 420a?

I'm embarassed for not knowing this.. But I always see threads referring to NT's as 420a's but when I took out my NT engine it was a 4g63 2L. I definitely know that 420a sucks, but im still not sure exactly what it is. Seems like the bottom of the food chain for sure the way you guys talk about it...
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Old 07-22-2007, 11:35 PM   #2
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Re: What is a 420a?

Ill be nice. Its the 2g n/t motor. 1g's had the 4g63 n/t.
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Old 07-23-2007, 02:17 AM   #3
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Re: What is a 420a?

The 420a's claim to fame is that it powered the Dodge neon which debuted in '95 and somehow it found its way into 2g DSM's.
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Old 07-23-2007, 02:23 AM   #4
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Re: What is a 420a?

What is a 420A?

The 420A was a mistake.
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Old 07-23-2007, 02:36 AM   #5
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Re: What is a 420a?

The sad part is the 420a motor in the '95 neon was actually Chrysler's replacement/upgrade to the Dodge Shadow and I believe the Shadow was 1 upgrade from a horse and buggy
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Old 07-23-2007, 03:39 AM   #6
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Re: What is a 420a?

Quote:
Originally Posted by twinturbo3k
What is a 420A?

The 420A was a mistake.
I gotta disagree with you on this one. True its not as powerful as the 4g63, but these motors are reasonably powerful. Before I bought my 2g GsX, I has a 98 Rs N/a and for a daily beater I couldn't go wrong. Enough power and less headaches.
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Old 07-23-2007, 10:16 AM   #7
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Re: What is a 420a?

They're not terrible motors. Some of their owners do try to glorify them as better than 4g63's, which is why 420a's seem to be looked down upon.

Number wise, the "bottom of the food chain" would be the 4g37 1.8L in 1g DSM's...a whopping 92 horsepower. I owned one and my friend's mom's Corolla was faster.
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Old 07-23-2007, 10:19 AM   #8
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Re: What is a 420a?

Is this the same Neon motor that goes through headgaskets like a fat kid through cake?
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Old 07-23-2007, 10:49 AM   #9
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Re: What is a 420a?

The Neon also had a SOHC 1.8 available that was nothing like the 420A.
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Old 07-23-2007, 12:21 PM   #10
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Re: What is a 420a?

This is all very interesting.
I always thought 420a was pot smoking time in Canada.
Man, you sure can learn alot ot this forum.
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Old 07-23-2007, 12:35 PM   #11
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Re: What is a 420a?

Quote:
Originally Posted by shadow_FIX
They're not terrible motors. Some of their owners do try to glorify them as better than 4g63's, which is why 420a's seem to be looked down upon.
True, but not all of us are like that.

The 420a in the eclipse/talon actually have more in common with the Avenger and Sebring 420a's than the neon 420a's. My eclipse has been the most reliable car I've owned, never had any big problems with it (besides general maintenance: plugs, wires, etc).
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Old 07-23-2007, 12:49 PM   #12
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Re: What is a 420a?

Didn't get in before the edit time expired, but there is a guy on DSMTuners building an all-out drag 2GNT so we might actually see some of the 420a's full capabilities as he is planning on putting it on the dyno here within the next month. His name is DSM-ZERO.

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Old 07-23-2007, 01:03 PM   #13
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Re: What is a 420a?

Its works and everything but compared to the 4G63 its junky, it would have been much wiser to stick with the 4G63 throughout the Eclipse/Talon line.
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Old 07-23-2007, 01:18 PM   #14
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Re: What is a 420a?

Quote:
Originally Posted by Wraith
The Neon also had a SOHC 1.8 available that was nothing like the 420A.
That engine was seen in export models. The neon engine is actually quite different from the dsm platform; as mentioned above. The heads are reversed between the platforms.

Neon:


Intake is up front and engine installed where the front is facing passenger side of the car.


I do have to note on the comment about the shadow mentioned above... since I do deal with the old turbo dodges. Not all of the shadows were super slow! My 89 CSX-VNT features a VNT turbocharged and intercooled engine. The VNT (variable nozzle turbo) virtually eliminates turbo lag making for quite a fun car! I'm also working on a tubo setup for a 92 3.0L Mitsubishi V6 powered shadow (6g72). So far I've seen one guy finish his v6 setup and without traction in 1st, 2nd, and part of 3rd gear he ran a 13.9 at 5psi in a shadow.
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Old 07-23-2007, 01:34 PM   #15
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Re: What is a 420a?

How good are they for top end though, with the VNT?
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