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1G N/T best $1000 worth of upgrades? not doing a T swap

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Dirt Eagle

Proven Member
60
0
Mar 27, 2014
San Clemente, California
Typical newbie ? but looking for opinions not advice ... Around $1000 to spend and want to do a stroker but haven't heard of a single n/t doing a stroker build (yes i know it would cost around 2000 with a kit but I'm talking if I have the crank already) ANYWAY... Im looking to spend about $1000 and trying to get some opinions.

TAKE NOTE: ONLY a goal of 165hp and bumping the torque up to around 150 ft/lbs... not building a monster here

DIRT TRACK CAR!!!!!!!!!!!
 
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Granted, stoker build for a NT setup isn't heard of since if one is going to spend monies on such a build, it really makes it worth doing it on a turbo setup.

But, since you mentioned your goals of a NT rally motor setup (where the torque might be higher than the hp since you're increasing the stroke and not the bore after your build-which is right up the rally owners alley for more bottom end power, but the tradeoff is a much lower red line limit - like around 6000RPM- in the RPM range), Id say that your monies will then be well spent for such a customized 4G63NT in reaching your wanted goal.

Just make sure that the motor, then can breathe a lot more easier since it's going to be pulling in more air and pushing out a lot more air than normal. Bigger cams and a 3 inch exhaust would help in this case.

This is when GDI (Gasoline Direct Injection) would really be the way to go.

Good luck - DSM
 
a way to tune would definitely be something. You would be surprised what kind of power you can unlock from a some good head work and the right cams. dont forget adjustable cam gears to tune with also. ultimately its about combination and setup. Ive seen plenty of racers with stroked motors get out ran by racers with
non stroked motors.
 
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Typical newbie ? but looking for opinions not advice ... Around $1000 to spend and want to do a stroker but haven't heard of a single n/t doing a stroker build (yes i know it would cost around 2000 with a kit but I'm talking if I have the crank already) ANYWAY... Im looking to spend about $1000 and trying to get some opinions.

TAKE NOTE: ONLY a goal of 165hp and bumping the torque up to around 150 ft/lbs... not building a monster here

DIRT TRACK CAR!!!!!!!!!!!

are you running the n/t 420a engine or the n/t mitsubishi engine??
 
FYI the EDM N/T 4g63s made 30 more hp over the US stuff. if I remember correctly it was 10:1 compression and more aggressive fuel and timing maps. Cars where set to run premium fuel.

If you want a wider power band it might be worth looking into doing a 2G head swap. Its a better flowing head. That with bumped up compression and the right intake manifold should get you in that goal range.
 
Any body know if the exhaust manifold from a 3g eclipse would bolt up to a 4g63 head? I was at the junk yard today and noticed that the 3g manifold has tubular primaries and its actually a 4-2-1 design. If this would work, its the closest thing to headers while still being stock manifold
 
Yes it would work, also something to look into is a 1.6 or 1.8 head as they are 43cc instead of 47cc and will bump the compression up some as well.
 
Update on build ive gone with cams 274 delta regrinds + spacers... put the original injectors in and waiting on my chip. As everyone has said and i knew THE STROKER IS EXPENSIVE. Ill keep it in my mind for the off season but for now i dont have enough time.
Any body know if the exhaust manifold from a 3g eclipse would bolt up to a 4g63 head? I was at the junk yard today and noticed that the 3g manifold has tubular primaries and its actually a 4-2-1 design. If this would work, its the closest thing to headers while still being stock manifold
Im going to try this ... .maybe attach 3 inch dump tube and do some porting ... could be interesting ... only thing im worried about is the "back pressure" that in earlier forms ive read you need. What do you guys know about this? keep in mind im running an open system
 
FYI the EDM N/T 4g63s made 30 more hp over the US stuff. if I remember correctly it was 10:1 compression and more aggressive fuel and timing maps. Cars where set to run premium fuel.

If you want a wider power band it might be worth looking into doing a 2G head swap. Its a better flowing head. That with bumped up compression and the right intake manifold should get you in that goal range.
http://www.automobile-catalog.com/auta_details1.php
YOU WERE RIGHT! Torque numbers arent much better but hp is up to 148. 9.8:1 compression. Thats awesome ... shows atleast that this n/t with diff pistons and more aggressive fuel trim is capable of some # bumps... Im curious with my cams and higher comp pistons + chip if i could raise the hps over 150 and get those tq #;s up around 140's. Torque is the most important factor with our dirt track racing.
 
I don't think you'll have a lot to worry about as far as back pressure. The primary tubes are small enough. I used to run 1 3/4 step down to 1 5/8 primary tube and a 3 inch collector. I made it work but smaller 1 5/8 primaries worked better for some of the other racers.
 
What are the class rules as far as engine size, number of cyl. or if engine came originally in a particular model?

What I think would be a nice and inexpensive motor, would be a 4g64 with the 63 head, suppose to get about 12 to 1 compression or use a 61 head and go up another half point in compression, pistons should not be a problem and should take the beating.

You will have plenty of torque with a good top end with the cams you have.

There are a few good write ups on this combo in the forum do a search.

Another option is the 4gs Hyundai engine but I dont know the piston configuration nor how high the compression would be, there are some of these on their forum.

I am planning on building one of these engines as our rules also do not allow turbos in the particular class.
It would be a very economical engine as you would only need the 64 short block.
 
What are the class rules as far as engine size, number of cyl. or if engine came originally in a particular model?

What I think would be a nice and inexpensive motor, would be a 4g64 with the 63 head, suppose to get about 12 to 1 compression or use a 61 head and go up another half point in compression, pistons should not be a problem and should take the beating.

You will have plenty of torque with a good top end with the cams you have.

There are a few good write ups on this combo in the forum do a search.

Another option is the 4gs Hyundai engine but I dont know the piston configuration nor how high the compression would be, there are some of these on their forum.

I am planning on building one of these engines as our rules also do not allow turbos in the particular class.
It would be a very economical engine as you would only need the 64 short block.

Pretty much the same rules ... supposed to be all stock but no one fallows it. What ive heard of people doing is taking the gallant block and trowing my head on. Ive been reading on it a bit the main problems ive encountered are 1. motor mounts 2. what transmission to use 3. timing. AS we both know building a stroker would be nice but the expense of doing it is insane!
 
honestly your best bet is to find a 4g64 or g4cs (6 bolt 2.4l) and toss on a 4g63 dohc head. with stock pistons and the dohc head i think the compression goes close to 11:1. timing wouldnt be a huge hurdle to overcome, and mounts would be similar (depends on 1g vs 2g). transmission is kinda up to you, a turbo fwd would work, or an awd with welded diff/vce.

depending on area, you could be into the engine for a few hundred bux and get close to 160-180 depending on mods.
 
honestly your best bet is to find a 4g64 or g4cs (6 bolt 2.4l) and toss on a 4g63 dohc head. with stock pistons and the dohc head i think the compression goes close to 11:1. timing wouldnt be a huge hurdle to overcome, and mounts would be similar (depends on 1g vs 2g). transmission is kinda up to you, a turbo fwd would work, or an awd with welded diff/vce.

depending on area, you could be into the engine for a few hundred bux and get close to 160-180 depending on mods.
This is definitely something I've been thinking of however lots of problems come up. I've tried to put a turbo tranny on a non turbo and it DOES NOT WORK! It would have been nice as it is better built but nope shield doesn't match up, bolt holes are different and it's too long to fit in. Then you miss one motor mount and that's a little risky!
 
I think I'm pretty set on a high revving motor running around 8g in 2nd. If I can find some high compression pistons and lighten the rotational mass I believe 160 would be easy to hit. Only problem is finding the pistons and figuring out what kind of compression the block can handle

a way to tune would definitely be something. You would be surprised what kind of power you can unlock from a some good head work and the right cams. dont forget adjustable cam gears to tune with also. ultimately its about combination and setup. Ive seen plenty of racers with stroked motors get out ran by racers with
non stroked motors.
You always seem to be my go to bud... What do you think compression wise 10.5 or should I go higher?
 
This is definitely something I've been thinking of however lots of problems come up. I've tried to put a turbo tranny on a non turbo and it DOES NOT WORK! It would have been nice as it is better built but nope shield doesn't match up, bolt holes are different and it's too long to fit in. Then you miss one motor mount and that's a little risky!

hmm, ive never run into that problem. at least not on similar generations of motors/trans. a 3rd gen 4gxx motor i could see a problem.

the flywheels/clutchs are different between the two, but i was under the impression that turbo/non turbo trans could be swapped no prob. i may have to try some personal swapping here...

$1000 to do a stroker..... HAH. Is this the funny section?

why would that be so out of the question? if you found a good running 4g64, and had a good 4g63 head on it, i dont see why you could easily be into it 1k or less is you were savvy and patient when looking for stuff. (granted, this doesnt make it a "stroker", but a "hybrid")
 
why would that be so out of the question? if you found a good running 4g64, and had a good 4g63 head on it, i dont see why you could easily be into it 1k or less is you were savvy and patient when looking for stuff. (granted, this doesnt make it a "stroker", but a "hybrid")
A hybrid? Please do your research before you post nonsense like this. ^^^^^
 
10.5 will not get you what you need, in a N/A motor you really need to be in the range of 12 to 1 or higher, these blocks will hold that compression without a problem.
The turbo tranny should bolt up to the engine, that is what was in my car when I got it, and you could fabricate a mount without much problem.
 
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