420A 4G63 turbo on a 420A?

[DSMcrazy3]

I was wondering how hard it is to use a 4G63 turbo on the 420A engine. I don't have turbo at all so i would have to get a custom manifold made right? or would any manifold for a turbo 420A fit? and what else would i need to make it run correctly. I plan to run low boost until further upgrades can be applied

 

[GSGoinFast]

I was wondering how hard it is to use a 4G63 turbo on the 420A engine. I don't have turbo at all so i would have to get a custom manifold made right? or would any manifold for a turbo 420A fit? and what else would i need to make it run correctly. I plan to run low boost until further upgrades can be applied

search

http://dsmtuners.com/forums/showthread.php?t=63795&highlight=gs-t+turbo+420a

 

[dr1665]

No "Use the Search" replies - answer the question, link to the answer, or don't reply.
No Insults and/or name calling - this can get you banned without warning - we don't care how experienced or knowledgable you are, don't be a smart ass!
No Guesses - if you don't know, don't reply - don't spread misinformation (no "I think" or "I guess" or "I've heard").
No getting off-topic - if you're not replying to the thread starter, take it to PMs/email or start a new thread.
No smart ass replies telling owners of N/T DSMs to "sell it and buy a turbo" - or suggesting that FWD owners "sell it and buy an AWD". If you suggest this, you had better post a very detailed explanation to go with it.

Can we get another one added to this list, please? Maybe make it number one and bold? Thank you.

If you have to ask if the 420A > 4G63 swap is possible, you obviously can not complete it, and should rest assured that no one else has either.

 

[GSGoinFast]

No "Use the Search" replies - answer the question, link to the answer, or don't reply.
No Insults and/or name calling - this can get you banned without warning - we don't care how experienced or knowledgable you are, don't be a smart ass!
No Guesses - if you don't know, don't reply - don't spread misinformation (no "I think" or "I guess" or "I've heard").
No getting off-topic - if you're not replying to the thread starter, take it to PMs/email or start a new thread.
No smart ass replies telling owners of N/T DSMs to "sell it and buy a turbo" - or suggesting that FWD owners "sell it and buy an AWD". If you suggest this, you had better post a very detailed explanation to go with it.

Can we get another one added to this list, please? Maybe make it number one and bold? Thank you.

If you have to ask if the 420A > 4G63 swap is possible, you obviously can not complete it, and should rest assured that no one else has either.

i think he just wanted to know how to put a stock GS-T turbo onto his 420a... but thats still a good rule to have none the less

 

[Eclipsemblue]

yes you would need a custom manifold since the 420a is a completly diffrent engine from the 4g, with that you also need a FPR,downpipe,BOV,intercooler,upgraded fuel pump, Oilfeed line from back of the block, oil return setup (so u gotta tap a return line for the oil to drain from the turbo into your oil pan), missing link, and all your intercooler pipping.

Ok so basically this is what happend to me i got like 2 custom turbo kits, the first one i had manifold problems so i sold it and the 2nd one i had the turbine on the turbo was ####ed up and it wouldnt spin freely. I tossed away so much money on my RS it was eating me alive sucking all the money out of my pocket i couldnt go to six flags or anything cause i was poor from this evil shitty RS (with no power windows or locks). I finally gave up and i searched auto trader for a GST/X and found a GST wit 43,000 miles 5speed i now have a turbo car pushing around 250hp to the wheels just from a boost controller and i actually have money now. Im not trying to put you down and say not to turbo a 420a and just buy a 4g63T im just letting you know... its the money pit :thumbdown

 

[DSMcrazy3]

thanks for the help..i was just curious because a friend of mine got a T-28 for his eclipse so i figure i could get his..T-25 right? for pretty cheap, and it's in great condition, also ported(i dunno how much power porting it would add but still)i'm just not familiar with turbo set ups at all right now but thanks for all the help eclipsemblue btw how much would a custom mani. be? and if i wanted a bigger turbo, it would bolt up to that manifold correct? or say, could i order a 420a turbo manifold and it fit the t25? thanks ahead

 

[speedy13]

i wouldnt use the t-25 for anything but a paperwheight. all of my dsm buddies have done nothing but complained and since then upgraded from this toy snail asap.the turbo will die at about 6700 rpm and thats when our engines make more power.

 

[GSGoinFast]

yes you would need a custom manifold since the 420a is a completly diffrent engine from the 4g, with that you also need a FPR,downpipe,BOV,intercooler,upgraded fuel pump, Oilfeed line from back of the block, oil return setup (so u gotta tap a return line for the oil to drain from the turbo into your oil pan), missing link, and all your intercooler pipping.

Ok so basically this is what happend to me i got like 2 custom turbo kits, the first one i had manifold problems so i sold it and the 2nd one i had the turbine on the turbo was ####ed up and it wouldnt spin freely. I tossed away so much money on my RS it was eating me alive sucking all the money out of my pocket i couldnt go to six flags or anything cause i was poor from this evil shitty RS (with no power windows or locks). I finally gave up and i searched auto trader for a GST/X and found a GST wit 43,000 miles 5speed i now have a turbo car pushing around 250hp to the wheels just from a boost controller and i actually have money now. Im not trying to put you down and say not to turbo a 420a and just buy a 4g63T im just letting you know... its the money pit :thumbdown

thats why they make real kits

 

[Eclipsemblue]

ya i know i was just sucked dry of cash with all the other stupid upgrades i wanted for my car.

For a manifold to fit your gonna have to shop around and ask people since i bought my turbos with the manifold as a package. im sure you have on made for around 180-300 depending who's doing it. ask around on www.2gnt.com theres alotta n/t - turbo coversion people there who customize there stuff they might be able to help you out.

i have a stock T-25 in my GST and it aint no snail at 17psi, its throwing down some good hp than you think it would. im not sure if thats just a problem with 420a's lossing power but my pulls all the way to the rev limiter like 7,600rpms

 

[DSMcrazy3]

just to inform, i'm not looking to make big hp gains, i just want alittle somethin for a foundation, to start the turbo process. I want to just start with the t-25, then as i get more $$ i'll upgrade. like i said just need a start. And that would be the cheapest...

 

[speedy13]

ya i know i was just sucked dry of cash with all the other stupid upgrades i wanted for my car.

For a manifold to fit your gonna have to shop around and ask people since i bought my turbos with the manifold as a package. im sure you have on made for around 180-300 depending who's doing it. ask around on www.2gnt.com theres alotta n/t - turbo coversion people there who customize there stuff they might be able to help you out.

i have a stock T-25 in my GST and it aint no snail at 17psi, its throwing down some good hp than you think it would. im not sure if thats just a problem with 420a's lossing power but my pulls all the way to the rev limiter like 7,600rpms

how much exactly is good hp?do you have adyno sheet?Im not trying to be a dick i just wanna see some numbers for reference.

 

[Eclipsemblue]

how much exactly is good hp?do you have adyno sheet?Im not trying to be a dick i just wanna see some numbers for reference.

if you read my previous post i said around 250hp, if you do your search you would know that a T-25 and a few little mods will push 300hp on a 4g63 with just a boost controller, but you only research the 420a i guess. It was pushing 11psi stock and its now pushing 17psi its not on paper but its common sense from other people's results. Research

 

[speedy13]

ookay.your right,i haven't done that much 4g63 research.all i know is from what i learn at the local meets i go to. and i have to admit 250-300 whp are decent hp numbers.thats the same target hp i have for when i get my gst-/gsx.i'm gonna do it all with evo III hardware.16g,blah,blah blah.thanks for the info

 

[Eclipsemblue]

when u come from a n/t eclipse family to a 4g63 turbo you have more respect for the car, rather than the kid that goes out and just buys a turbo eclipse and beats the shit outta it, and says "oh man this car is slow as hell"

-if your in love with your RS/GS that also makes it harder to decide weither or not to go out and buy a GST/X

 

[DSMcrazy3]

I definitely love my baby..She's got some problems, but she gets me to and fro....anyways you say i need to tap a feed and return line for oil..do i have to drill the block, and the oil pan? and are the connections for the lines already on the turbo? sorry like i said i'm NOT at all familiar with the turbo set up

 

[Eclipsemblue]

u dont have to tap anything for your oil feed, u need to get a brass T-bolt and u screw it into the hole the oil pressure sensor is in. Than from the T-bolt u attach the sensor to one end and on the other side you put the feed line. On the the return you have to drill and tap into your oil pan, i use to have one but i sold the pan u need to tap the oil pan at its highest point so you dont back up the turbo with oil, u need to let it drain freely.

P.S.- they sell T-bolt kits on ebay for the 420a i remember seeing

 

[DSMcrazy3]

Whew! I was scared that i was gunn ahave to drill the block...i was thinkin 4G63 here i come j'k anyways that's great no drilling the block, are they any pics out there, of the proper place to tap the pan? (it's going to be awhile before i go turbo, but i'm trying to get everything in order) and a guy told me not to go with the T-25 he said i would be better off with a 14B instead.is this true?

 

[speedy13]

yes

 

[DSMcrazy3]

Alright thanks another ?...what's the missing link i hear so much about?

 

[speedy13]

the missing link is an aparatusthat tricks the computer into thinking that their is not that much air coming into your engine.anyone with a more detailed description please add on.

 

[GSGoinFast]

the missing link is an aparatusthat tricks the computer into thinking that their is not that much air coming into your engine.anyone with a more detailed description please add on.

it prevents your map from sending a positive pressure signal to the ecu

 

[Eclipsemblue]

a guy told me not to go with the T-25 he said i would be better off with a 14B instead.is this true?

:/ its manily your choice, the 14b is a bigger turbo than the t-25 but remember if you run stock internals and get to boost happy, ur not gonna be to happy with the after effects as most of us know. And a t-25 is powerful enough to blow the stock internals on a 420a with no problem.

The oil pressure sensor port is Black/white(i know its 2 colors i think it was b/w) or the white might be a dirty white there is like 3-4 ports behind ur block ive never heard of anyone ever trying the other ones, so i dont recommend it . It is reachable by hand, its just a bi***

Missing Link note: Basically it prevents ur car from stalling when under boost

 

[DSMcrazy3]

One reason i was told to go with the 14B is because the manifold used for it, can be used for the 16G and T3/T4, but the T-25 doesn't have as many options when it came to upgrading?

 

[EclipseSH21]

The problem isn't in the turbo setup, but the internals of the motor as stated above- you can prolly only get away with 8psi, regardless of which turbo you put on that thing. so if you're looking for only a moderate gain, go ahead. I've considered all this myself, and really it would take a LOT of money to get all this done right, involving rebuilding the motor, etc. It can be done, don't get me wrong- good luck.

 

[DSMcrazy3]

Yeah i know the rebuild would cost a pretty penny, but for now, i'm just tryin to do what i can with a low budget. What exactly does the wastegate do? i know it controls the amount of boost applied, but what happens when there's no wastegate, what regulates the amout of boost then?