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srt-4 motor swap into...

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21K views 49 replies 26 participants last post by  unkown  
#1 ·
a 2nd gen eclipse with the 420a. I searched and couldn't find anything. Has it been done. I am pretty sure this would work and would be awesome for the 420a people that can't swap the 4g63.

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#27 ·
Oh by all means I would like to see it be done, the neon transmission could probably be swapped in WAY easier than a SRT transmission, WHICH brings up the next point, drive shafts. The SRT ones wont fit in the Eclipse OR neon hubs. You MIGHT be able to do a turbo Shadow axle and hub on one side and a PT axle and shadow hub on the other side. (Thats a cheap axle upgrade for us 1st gen neon kids) Then again one could just have custom axles made....

Also would you be doing an SRT cluster swap with this? Being that all 2000 up neons use BUS data instead of pulses to control the cluster.

I could really see this making a great drag only project (if of course a 4G63 swap would prove to be less difficult or you really had your heart set on the SRT motor, I head its difficult as well)

I like the idea but again feasability is not there. Some kid around here swapped a 4G63 into a civic for some reason. Its interesting but...why?

One thing that has been thrown around but I havnt seen done yet is taking the Libery transmission off the 2.5L diesle and making RWD fun....
 
#29 · (Edited)
Have any of you actually MEASURED the engine bay of a 420a powered 2nd gen Eclipse? From tower to tower it is far narrower than a Neon. The 2.4 Turbo + NVT850 out of SRT will not physically fit. You're going to have to step down to an NVT350 but at that point you might as well have gotten a pre 03 2.4 from one of the cloud cars for not even anywhere near the cost of an SRT-4 drivetrain.

You 2GNTers need to look elsewhere. This is not an economical idea nor is it original. It has been discussed on 2GNT.com ad nauseum. I'm guessing you asked over there, got the flamed like the knob you are and decided that we would be better equipped to answer your completely asinine question. Well, the answer is no different.
 
#30 ·
Agreed that if your heart lies on a 2.4L turbo, get an 01-02 PT/Stratus/Caravan 2.4L (higher flow head w00t!) and do SRT internals and turbo. That would allow you to run the stock PCM your car came with although I wouldnt rev past 6500...simply cause the motor runs out of oomph unless equipped with crane 18s or larger....non forged pistons also like to separate with pulls above 7000, I've done it a few times and scared the crap out of my self.
Next question though, hood and tower clearance? I know i had to cut a good sized notch in my hoods skeletal frame to clear the valve cover.
 
#31 · (Edited)
the 95 to 99 non turbo use the same tranny as all neons except srt-4.
You will have to modify the cross member on the eclipse so the oil pan will clear it .
The eclipse 95-99 non turbo
block is the same as a neon except the head.

Ben
 
#36 · (Edited)
-Tom- said:
Agreed that if your heart lies on a 2.4L turbo, get an 01-02 PT/Stratus/Caravan 2.4L (higher flow head w00t!) and do SRT internals and turbo. That would allow you to run the stock PCM your car came with although I wouldnt rev past 6500...simply cause the motor runs out of oomph unless equipped with crane 18s or larger....non forged pistons also like to separate with pulls above 7000, I've done it a few times and scared the crap out of my self.
Next question though, hood and tower clearance? I know i had to cut a good sized notch in my hoods skeletal frame to clear the valve cover.
i'm curious how you would raise the redline past 6500 rpm..

when stock is 6250..

you would need a stand alone , cams alone are not going to raise the redline on your car..

with 18 grind cams you need at the minimum springs .. but most everyone would recommend head work with a CAM that large !! ..

just because 18's can rev over 7200 rpm's doesn't mean you bolt them on and instantly have an srt4 motor that revs to infinity ..

and if you willing to spend $2K on head work , another $2500 on a full stand alone..

why in gods name would you put any stock srt4 parts in it .. the pistons are crap... the turbo is small, and imo spools way to fast .. so he's spent about what now $8k to do the swap seems rather pointless to me.. i guess if you had infinte cash supplies .. it would be cool to own this theoretical car ..

but i'd rather build a 10 second dsm with an ecipse motor.. it would cost so much less .. i just don't get the point...
 
#37 ·
thispainisourz said:
i'm curious how you would raise the redline past 6500 rpm..

when stock is 6250..
Easy, use the STOCK eclipse computer (rather similar to the neon computer) on a 95-02 2.4L The sensors should swap over, not sure of the firing order but you might have to rotate the cam magnet 90 degrees and move injectors 1->2 2->3 3->4 4->1 There for giving you the Stock eclipse rev limit.


thispainisourz said:
why in gods name would you put any stock srt4 parts in it .. the pistons are crap... the turbo is small, and imo spools way to fast .. so he's spent about what now $8k to do the swap seems rather pointless to me.. i guess if you had infinte cash supplies .. it would be cool to own this theoretical car ..
Well, why you ask? HRM! Its a $600 engine build (plus $4-1200 for a good motor) + another $12-1500 for fuel, turbo, intercooler, ect items. First gen neon people have been doing it for years! Its cheap and is good for 220-260 WHP and 260-330 WTQ depending on boost levels. First gen neon guys have been doing it for years. I AM going on a limb though and assuming the engine (Chrysler based mitsu 2.0L) has very similar engine management to a neon. IF it does then doing a standard Chrysler 2.4L swap should be a breeze (no pun intended) The only hard part would be the mount fabrication and drive axles.

How do I know the ease of a 2.4 swap? geee maybe cause a have done it a few times.....

Assuming the Engine fires <1-4> <2-3> (batch fire) like a neon and uses the SAME injection order then a standard 2.4L would be the way to go. Getting a 95-02 2.4L Chrysler engine to run on the stock PCM would be SO easy. So get fabbing on the mounts (the transmission one shouldnt need any thing...maybe spinning the insert 180 deg to create more clearance) Your front mount will probably have to be trimmed to clear the oil pan and then a second adapter piece for the upper engine mount on the passenger side will be needed.
 
#38 ·
like i said waste of money for 260 horsepower .. and a hell of a lotta work..

i didn't say it wasn't possible .. just why would you ..

to say you did it ?? i could build a 400 whp dsm for far less using his stock block ..
i just don't get the point.. all that money and under 300 hp ..

to each his own , i guess
 
#39 ·
thispainisourz said:
like i said waste of money for 260 horsepower .. and a hell of a lotta work..

i didn't say it wasn't possible .. just why would you ..

to say you did it ?? i could build a 400 whp dsm for far less using his stock block ..
i just don't get the point.. all that money and under 300 hp ..

to each his own , i guess
Because the 2.4 block and srt internals can be gotten for alot less then you would spend on a 400whp dsm and the 2.4 has been swapped into the 2gnt's successfully for as long as the neon guys have been doing it. Yes you have to rotate the cam sensor. and redo the firing order, but it's easy to do. megasquirt is the key.
 
#40 ·
Yeah and not every one desires 400 hp....400 hp would be worthless to me. I autocross so right now a 2.4L with 2.0L cams, 55mm tb, UDP, Mopar PCM, 3.0L intake produce a great power band for me. I will be building the spare 2.4L in my garage with SRT internals and boosting it. My goal is 13.4 or less on street tires (roughly 260 whp) and then run low boost for autocross. SO why you ask would any one do that? their own particular goals arent 500 hp and 11s in the 1/4 mile....Sorry my attention span is longer than 15 seconds.....I need turns too. Both directions!

Now as to the thread starters particular goals, if he wants a quick daily driver then he should just bolt up an SRT turbo. grab a jonny race car intercooler, some bigger injectors, fuel pump and modify the housing, slap on an FMU and wide ban then tune away at 9-10 PSI The motor doesnt like much more than 250ft/lb of torque. But for some the 220-230 hp netted from that is plenty. Some people just dont see the obvious and shoot for grandios over the top.
 
#41 · (Edited)
i actually was thinking of taking up autocross this year ..

i'm not building a dyno racer .. :)
we have enough of those here...

for someone who's been here 4 days you've got an awfully bad attitude :tongue:

like i said i don't see the point.. to each his own ..

i wouldn't suppose that would mean it's useless to me .. but someone else may have a reason ??
which is the exact god damned thing you just said , but with some sort of assholish stabs at me while doing it..

if it were me i would buy an srt4 , put in stage 2 and go autocrossing..

stock turbo, good suspension, low 13's on streets .. hmmm

ohh wait i'm thinking way to big for you again ??
i don't overkill anything ...all of my parts are bought with my desires in mind .. that just seems like a ton of work.. i guess i just not use to thinking bargain basement ..
 
#46 ·
I dont' think that the 2GNT people are wanting to do the swap just for power only....that should be obvious. Ease of the project shouldn't be considered since this would be a goal oriented swap...not a manditory requirement that you're trying to "get by" on. The Possiblily of it working should be the only thing talked about. Maybe these people just want the glory and pleasure of actually having an SRT powered eclipse! I personally would like to see someone (with enough knowledge to give it a realistic shot) to try to make this work.
 
#47 ·
just use a the base 2.4 block from the cloud cars, along with the crank<sensors same as neon/420 eclipse , then use SRT rod and pistons... essentially an SRT bottom end ..less oil squirters. Then use the 420 head... and now you have basically the same engine configuration as Darrel Cox's race car... use the Eclipse tranny and ECU with piggy back, pick up a used turbo kit off of 2gnt.com and your :hi: golden
 
#48 ·
antireversion said:
just use a the base 2.4 block from the cloud cars, along with the crank<sensors same as neon/420 eclipse , then use SRT rod and pistons... essentially an SRT bottom end ..less oil squirters. Then use the 420 head... and now you have basically the same engine configuration as Darrel Cox's race car... use the Eclipse tranny and ECU with piggy back, pick up a used turbo kit off of 2gnt.com and your :hi: golden
Hooray. Then you're stuck with shitty cast pistons and an engine management system designed to react to knock rather than prevent it. Yeah...that'll last 50 miles.

Absolutly brilliant if I do say so myself.
 
#49 ·
srt4fun80 said:
one of the hardest things to change would be the fact that the 2.4 srt motor is rear exhaust and front intake. seeing as the 420a is reversed, I think this would cause major fitment issues. But hey, you won't really know till you try

Put an Avenger head on it, and blamO! Problem solved.