Engine swap

[ajwill]

Does anyone know of any possible engine swaps for the 420a? Or if there is a JDM engine available like with Honda's?

Appreciate any help

 

[verserv]

Nope, I dont think there is a such think as a jdm version of that chrysler engine. Best bet is to turbo it.

 

[mitsu97eclipse]

you can swap out the bottom end from a 95-97 stratus 2.4 dohc will add 20hp and 50tq that bottom end swap will put you in 14sec range in the 1/4 now if you do the swap and run 10:1 comp pistons and spray a 125 shot you will run 13.1s all day but if you wanna go turbo with that bottom end go to a 8:1 comp piston and you can run damn near 20 psi and that should put you in very low 12s poss 11s

 

[4ndrms]

Originally posted by mitsu97eclipse
you can swap out the bottom end from a 95-97 stratus 2.4 dohc

how much would that cost?

 

[verserv]

Probably more than its worth

 

[98TsiAWD]

WHY?!?!?! The 420a is just as capable of high hp numbers as the 4g63. The only thing better about the 4g63 is that it comes with a stock turbo. Check out www.hahnracecraft.com for the turbo kits for the 420a, as you will notice even stage 1 is faster in the 1/4 miles than a stock gst. Also if you are interested in the bottom end swap from a 2.4, there is alot of other cars that you can swap from, check out www.asog.net.bbs and go to the i-4 tech or high octane forum and you will be able to find ALOT of info on the bottom end swap in there somewhere, might be a couple pages back. One of the ASOG members has a webpage listing ALL parts needed for the swap and where you can get ALL the parts.

 

[verserv]

WHY?!?!?! The 420a is just as capable of high hp numbers as the 4g63. The only thing better about the 4g63 is that it comes with a stock turbo. Check out www.hahnracecraft.com for the turbo kits for the 420a, as you will notice even stage 1 is faster in the 1/4 miles than a stock gst.

I hate to be rude, but that is not completly true. The stage 1 hahn kit can barely get a 2 gen nt to a stock gst levels.

It is also not capapble of hp numbers equal to the 4g63. Without heavy internal modifications the 420a will never match a stock 4g63 engine for pure potential power. The 420A requires substantial money to create power. That is why many 420A owners opt to sell their cars and buy a 2G turbo with the 4g63 engine, even after they have boosted a 420a. It just costs too much when compared to a 4G63 for the same result. There is much more potential from a stock 4g63(even the shitty 2g 4g63 motor). The 420A was never designed for boost, it costs alot to create alot of power from it. Basically building an entirely new engine out of a 420A shell.

Actually saying that "The only thing better about the 4g63 is that it comes with a stock turbo", is an incorrect statement also. The 4g63 has been built for boost. Including grooved pistons to reduce knock and better internal structure for such an application as boosting.

Now dont get me wrong, I think the 420A is a well built engine. It responds to boost quite well. I don't want people to get the wrong idea, you are only part right in your statement and i dont want new user to take that as fact, because it is not.

But is under the same idea as boosting any NA car. It requires alot of extra work to match the power potential of a standard turbo engine. An NA engine requires a rebuild to really create substantial power.

And the guy you said who was pushing 404whp from the 420A? Well i bet his 420A has nearly zero stock internall still in place. A 6 bolt 4g63 can handle 400whp with wtock internalls and just some new head studs & bolts.

Once again I don't want to make you sound dumb or anything, I am sure you know more about cars than me. But i do not want people to take opinions as fact.

 

[verserv]

By the way, I think Hahn has done an amazing job building there 11 second 420a 2G. I give them alot of credit. Any engine can be boosted or fast, it's just how much you want to spend to get there.

 

[eclipseman97]

Hey verserv just a question. Why you hate the 420A engine so much? I have one and it's been good. I haven't boosted or anything but in overall it's not that bad. Not trying to start a fight or nothing.

 

[L2RTSiAWD]

I will say I don't hate a 420a. I have 4 friends with neons one which did a 2.4 swap. He is just saying as far as HP and turbos you will spend alot more money getting a 420a to handle as much boost and power as a 4G63.

Later,

 

[Tevenor]

Originally posted by eclipseman97
Hey verserv just a question. Why you hate the 420A engine so much? I have one and it's been good. I haven't boosted or anything but in overall it's not that bad. Not trying to start a fight or nothing.

You start off by asking why he hates 420A's and then you say you aren't trying to pick a fight? Hello McFly!

He never said he hated 420A's. He never said its not a good engine design. In fact I thought his post was very positive about the 420A.

Whenever a thread starts up with "420A vs 4G63" it reminds me of a Honda vs DSM discussion. Both sides arguing over oranges and apples.

The point is this. The 420A is a great engine. It is one of the strongest naturally aspirated 4 cylinders out there. It really is. You can supercharge it, you can turbo it, you can leave it NA and still makes lots of power. However, it wasn't designed to do what everyone does to it. It just keeps on taking the beating. The 4G63 engine is the same way only it already starts up a few rungs on the ladder because it was designed to be forced inducted. Now take the same steps up the ladder that you did from the 420A to the 4G63 and now you have even more power.

Oh and one more note. Any discussion about which engine is better better be about stock bottom ends. The minute you go to built blocks, you kind of undermine your arguement as now you are talking built engines.

 

[eclipseman97]

First of all I wasn't asking you. And asking someone a question is not picking a fight ok.

 

[Tevenor]

Originally posted by eclipseman97
First of all I wasn't asking you. And asking someone a question is not picking a fight ok.

If you wanted to limit the discussion to be just between you and verserv you should have PM'd him instead of posting it publically. That was your call. You deal with it.

My issue was simply that verserv posted a very polite, well organized post. He never once dissed the 420A and then you pop up with "Why you hate 420A's so much?" out of no-where.

Posts like this only serve to create arguments and seperation instead of a good technical discussion about the true differences between the 420A and 4G63.

That is why I butted in.

 

[eclipseman97]

Whatever.

 

[verserv]

The point is this. The 420A is a great engine. It is one of the strongest naturally aspirated 4 cylinders out there. It really is. You can supercharge it, you can turbo it, you can leave it NA and still makes lots of power. However, it wasn't designed to do what everyone does to it. It just keeps on taking the beating. The 4G63 engine is the same way only it already starts up a few rungs on the ladder because it was designed to be forced inducted. Now take the same steps up the ladder that you did from the 420A to the 4G63 and now you have even more power.

I am glad someone understands my points. I dont hate the 420A. In fact this is what i said

Now dont get me wrong, I think the 420A is a well built engine. It responds to boost quite well.

I still think it is a very good engine. I just wanted to try to straighten fact from opinion for people comparing engines. Hey a 420A hit 11's in an eclipse, that is a nice ****ing engine. A 4g63 hit 8's that is a great ****ing engine.


And......

Why you hate the 420A engine so much

First of all I wasn't asking you

Whatever

If you want to twist words and start flame wars take it to a honda forum.
You have done nothing but misquoted and argued for no apparent reason. I think your 420A is a good engine and it is great for boost. I just want people to see fact over opinion, nothing more. Sorry about being rude if it came out a such.

 

[HondaHunter2002]

i think that all talons and/or eclipses are awesome.. they don't make a bad engine.. so why can't we all just get along. : )

 

[HondaHunter2002]

oh and verserv. thanks for all the help on my 92esi
if you ever here of ne kick a%# parts for it or sumthign cool i can do to help my top end.. or if ne body hears of anything or knows of something good for top end.. post up a thread or send me a PM THANKS A TON

 

[verserv]

I drove a 94 eclpise nt for 4 years. The stuff I listed woill work great. If you want specific parts just email me and i can even reccomend parts for you. Hope you kick some ass with that car man.

 

[eclipseman97]

Maybe I misquoted you. I wasnt starting ****. That was easy enough.

 

[98TsiAWD]

Just remember that the 4g63 that barely hit the 8's (www.extrememotorsports.com) is AWD, You cant compare an eclipse FWD 420a to an AWD car. The AWD alone is good for at least a second in the quarter mile. I agree that the 4g63 is a great engine other than the 2g crankwalk. And you are right that the 420a needs to be built from the bottom up to get real HIGH hp numbers. The 4g63 will handle more power than the 420a on stock internals, but if you are goin all out and do a bottom up build to either engine you will end up with about the same dyno numbers and $'s spent. Also remember you can get 420a parts fairly cheap because they came in the neon's.

Extreme Motorsports has also been working on that car for 7 years or somethin to get it to hit 8's, I'm hoping Hahn will put that much effort into their 420a eclipse and maybe get into 9's with it.

I personally would either buy a 1g 4g63 Turbo DSM or a 2g 420a. Now if I wanted AWD like I would want...I would get a 2g and swap in a 6 bolt 4g63 so that I never have to worry about crankwalk (but the $'s add up in doint that).

All in all the 420a and 4g63 are both AWESOME engines, however I would have to say in the end that the only thing better about the 4g63 is that you can run AWD with it. (big advantage)

 

[mitsucar4]

Back to the subject at hand. swaping your bottom for a 2.4 will require a lot of work. The 2.4 block is about 2 inches bigger than your 2.0 420a. You would need to get custom mounts built, and if you have a strut bar, you can just forget about it. not enough clearance. You would also need to tweak some harnesses. Another solution is to get a stroker kit. This is straight plug and play.....Take the old block out, put the new one in. No custom mounts, harnesses or anything. It also makes your engine a 2.2L. Unfortunately this is new so there isn't any numbers to post or stats. I'm getting his done as we speak. As soon as I have it installed and on the Dyno, I'll post some numbers.