420a turbo or gst which is cheaper? more reliable?

[goldeninja20]

Well i plan on getting a eclipse in the next couple of weeks. I am not sure whether or not to buy a 4g63 (turbo), or a 420a then turbo it. I know the 4g63 has crankwalk problems. Which is cheaper to do? Which is more reliable? Which is overall a better idea? Please i need some feedback on what to do. I am not looking to spend more than 3000 total.

 

[Silvertune]

Only a small percentage of 4g63's actually crank walk. People just make a huge deal about it when in reality, a percentage of every engine series ever built crank walks.

You'll want the GST or GSX, guaranteed. The 420a needs serious work to pull power off of and if you get a 420a car you'll be missing a lot of bells and whistles you'll otherwise want.

 

[mike hobbs]

4g63 ftw i dont have anything against the 420, but i know its not worth the money if you ask me. think about it a turboed motor vs a non turboed motor. non turbo motors are not built for it, why do you think honda motors that are boosted and not built dont last that long. a properly built motor will handle anything, but just something you piece together to try and imitate wont cut it.

 

[Mopar McNeer]

Both can be reliable if you build them correctly and maintain them properly. IMO the 4g63 has more potential overall and would probably be cheaper to build.

 

[jb2zero0six5]

+1 4G63, seems like a wasted effort to turbo a 420A when you can pick up a GST for cheap now days.

 

[goldeninja20]

Ya but a gst with 120k miles on it is going to need to be built, most likely real soon, am i right? they have been boosted for 120k miles don't you think they would need a good amount of work?

 

[GsXdSmKingGsX]

Hardly even a question. 4g63t FTMFW!

 

[goldeninja20]

Plus my boy got a 420a. He turboed it, blew the engine first week. He is not almost done building it. Just needs valves and injectors.. he will be running about 400hp. I don't know if i want to get the same thing as him, ya know?

 

[zeekster777]

i just picked up a 1990 talon tsi $500 AWD, THERE OUT THERE JUST LOOK TAKE YOUR TIME AND ALWAYS GO 4G63.

 

[Tyeler18]

For the price your "boy" paid to turbo his 400whp 420a you could have bought the car AND make 400whp reliably. 4g63 is by far better than the 420a in every aspect if you're going turbo. There's WAY more support, much easier to make power on, and you have plenty of room to upgrade.

All the 420a's I've ever worked on have had way more reliability issues than any of the 4g's I've worked on.

 

[goldeninja20]

Ya I know what your saying... I'm just worried about crankwalk because it would happen to me.

 

[Tyeler18]

There's a thread on here with the percentage of who CW'ed. It was EXTREMELY low.

 

[dalesmitsu]

If diecide on the gst buy a automatic, less prone to crankwalk and buy a external Transmission cooler for peace of mind.

The 420a is good if you buy one Do a compression test on it, and do the regular maintence- tune up on it before you turbo it.
It needs good numbers across the board for stock to handle boost. There's a good 420a turbo sleeper path write up on 2gnt.

From what I've learned about the 420a stock bottom block can only handle 5 to 8 lbs of boost maybe 10 lbs.

Build it right the first time and avoid the ebay garbage.

 

[Zdrummer15]

Just stop worrying about crankwalk for one, because I highly doubt it will happen to you. Most DSM's that were going to experience CW already did. With the mileage on the one you mentioned, it would have almost certainly already happened. Secondly, switching to forced induction on a 420a is going to be much more expensive relative to whatever power level you obtain. Put it this way; If you buy and boost a 420a properly, you'll spend more then a 4G63T powered car and possibly not even reach the performance level of a stock GS-T or GSX. No matter how much power you plan to make, it will simply be cheaper to go with the 4G63T. Since you mentioned you only want to spend 3k, you won't be able to run more then 5-8 psi on a 420a.

 

[zanderson]

If diecide on the gst buy a automatic, less prone to crankwalk and buy a external Transmission cooler for peace of mind.

The 420a is good if you buy one Do a compression test on it, and do the regular maintence- tune up on it before you turbo it.
It needs good numbers across the board for stock to handle boost. There's a good 420a turbo sleeper path write up on 2gnt.

From what I've learned about the 420a stock bottom block can only handle 5 to 8 lbs of boost maybe 10 lbs.

Build it right the first time and avoid the ebay garbage.

If you want the cheaper way to go, go with the 4g63. turboing a 420a is going to be expensive. The chances of crank walk arn't as high as people make it out to be.

 

[goldeninja20]

K thanks everyone i will be looking on craigslist.. anyone have any other good places to look?

 

[jb2zero0six5]

Look on heraye, in the classifieds, or ebay. You proobably want something in your area though, C-list is your best bet. I bought mine through a guy at a party I went to.... Be patient, keep looking, you will know when to bite. Watch for strut tower rust (any rust for that matter), check ALL (timing belt mostly) the belts, oil and coolant when checking one out. Look under where any car is parked for liquids, don't be afraid to ask questions. If it's a sports car, it's been beat on. Make sure the title is clear and in his hand. Good luck!

 

[dalesmitsu]

Look on heraye, in the classifieds, or ebay. You proobably want something in your area though, C-list is your best bet. I bought mine through a guy at a party I went to.... Be patient, keep looking, you will know when to bite. Watch for strut tower rust (any rust for that matter), check ALL (timing belt mostly) the belts, oil and coolant when checking one out. Look under where any car is parked for liquids, don't be afraid to ask questions. If it's a sports car, it's been beat on. Make sure the title is clear and in his hand. Good luck!

Also, make you get a reciept wrote from the seller with both your signatures on it, to be safe.

 

[Carter_95RS]

I've got some 420a love. I turbo'd my RS, still love it. I had the chance to buy a 4g63 car...passed it up for this one. Most will say that's stupid, but i like having something different and challenging myself.

 

[96_killer]

4g63t vs 420a......when will it ever end!? I had both so I don't care what people say....

 

[rideyamaha287]

i love my 420a im spiking out at 22 psi and it pulls like no other...i do have a fully built engine you dont see to many 420a turbo..i like to be different..either way both engines are good regardless

 

[Doubleot]

I've had both. 4g63 is much easier to work on IMO and cheaper. It's really up to what you want to do. If you were thinking you'd get a 420a and boost it for 3k, Good luck. You'll be lucky to get a car for that price much less the whole turbo kit and bolt on's you would need.

 

[bagged420a]

Um, get a gsx.

 

[wkmitsu]

Don't worry about crankwalk. Get a GST or GSX if you can, if you want to make a little power it's going to be a lot easier with a factory turbo car.

 

[Jesse__c]

i cant beleive this is even a discussion. and if you want to be different get a metro to push 500 hp with a 3 cylinder. you want a motor that will produce proven reliable power, 4G63. ill take a NT 4G63 over the 420a any day.