What should i do to prepare my non turbo engine

[1990eclipse]

Hi im new at this. I have a 1990 eclipse 5 speed manual its a 2.0l non-turbo.i was wondering wut i should do to make sure i dont blow my motor up when i put a turbo on it that is off a eclipse gsx. should i jsut rebuild the engine and tranny then put it on? and if so wut should the boost be at?

 

[gsxboostin]

A rebuild with performance forged internals wouldnt be a bad idea, if not keep your boost at around 8 psi or 9 seriously, the 420A interals cant handle too much, and if i were you I would just put a 14b turbo of a 1g dsm instead because it's soo much better than the t25 of the 2g turbo dsm's. -Matt

 

[CrazyClipse]

Like ^^^ said, get your head and block upgraded and machined because once you feel the boost its like a drug... you keep wanting more and more and more... Stock internals on the 420a can only handle 7 or 8psi safely, 9 or 10 is REALLY pushing it. A fun boost level in my opinion is between 12 or 15psi. Even then, you want more.

Best bet is upgrade your internals and build a bad ass fuel system. Makes great for a winter project! Good luck with it all!

 

[rjgeier]

1990's do not have 420a's. They have 4g63's.

If you are going to rebuild your motor, buy 1g rods with 2g turbo pistons. Your trans should be fine for now.

 

[timloomis]

just change the pistons and get a good head gasket.a 14b turbo is off a dsm by the way.but just run like 8 or so psi like these guys say if NOT switching the pistons.if you swap pistons,boost away!

 

[na90dsm]

1990's do not have 420a's. They have 4g63's.

If you are going to rebuild your motor, buy 1g rods with 2g turbo pistons. Your trans should be fine for now.

yes that have 4g63. best thing to do cheaply would be what he suggested.im in the process of doing the same thing.

my only thing is the n/t tranny will not hold any kind of power. i had full exhaust and intake and my n/t tranny spit on me. swap to a gst tranny. bolts right up and very few things have to be changed. ill be doing a write up on it soon.

also his cams arent to good either. upgrading to tsi cams would be a good idea.the stock n/t intake cam lacks the lift the tsi cam does.

 

[TalonRcR]

Hi im new at this. I have a 1990 eclipse 5 speed manual its a 2.0l non-turbo.i was wondering wut i should do to make sure i dont blow my motor up when i put a turbo on it that is off a eclipse gsx. should i jsut rebuild the engine and tranny then put it on? and if so wut should the boost be at?

The only main difference is the compression of 9.0:1 and the lack of oil squirters onto the pistons. Just don't run it too hard and it shouldnt be a problem. We put a non turbo block into a galant VR4 Rally car to see how it runs. Runs good so far gets quick spool.

Chris

 

[noreaga0221]

NT and turbo gst transmissions are not the same. Yes they will bolt up but different clutches and flywheels must be used. Axles will work though.


NT 1g's do not have a 420a. Where the hell have you been?



1g NT pistons are very weak. Higher compression and also higher ringlands make them very bad for boost and detonation.



Again, as its been said thousands of times before, don't turbo your NON TURBO car. Either save up for a turboed one and keep your NT for a beater or sell the NT and buy an awd. Oh yea, you know how important knock sensors are to turbo cars?? Well your NT car doesnt have one. So see how long it lasts with those shitty pistons and no knock preventions.

 

[bastarddsm]

umm before you get so sure of yourself, let me ask you have you ever turboed a n/t motor before. ya probably not. so if you don't have any experience with it shut the hell up about it then. i beat the absolute pis outa mine (22psi stock intercooler and fuel system, pump gas) for 11,000 miles before a cheap hg failed.

 

[noreaga0221]

umm before you get so sure of yourself, let me ask you have you ever turboed a n/t motor before. ya probably not. so if you don't have any experience with it shut the hell up about it then. i beat the absolute pis outa mine (22psi stock intercooler and fuel system, pump gas) for 11,000 miles before a cheap hg failed.

You're are absolutely right. I have never turboed a NT 1g motor. You know why? Cause I'm not a fuk stick who is too lazy to A) save up money for a turbo car or B) sell car and buy a turbo car.


Let me ask you something, have you ever assembled a motor? How many tranny swaps have you done? Can you do your own timing belts? or head swaps? Ever build a car from just a shell?


Ok you're saying you ran 22psi with stock IC and i hope 450cc injectors with a NT 1g motor with stock pistons? Wow where have you been? Since you must have found the secret to getting aroung the physics of the design of the NT pistons, please share your infomation and finding. I do hope you documented all this to share with the world.

 

[sweet97]

NT and turbo gst transmissions are not the same. Yes they will bolt up but different clutches and flywheels must be used. Axles will work though.


NT 1g's do not have a 420a. Where the hell have you been?



1g NT pistons are very weak. Higher compression and also higher ringlands make them very bad for boost and detonation.



Again, as its been said thousands of times before, don't turbo your NON TURBO car. Either save up for a turboed one and keep your NT for a beater or sell the NT and buy an awd. Oh yea, you know how important knock sensors are to turbo cars?? Well your NT car doesnt have one. So see how long it lasts with those shitty pistons and no knock preventions.

I would agree 100%. DO NOT TURBO this car! You will be 200% happier with an AWD and not have a hacked car. Keep the NT for a 2nd car if at all possible. You will be able to buy an AWD probably for not too much more than what a proper turbo job will cost. Mark

 

[SexyDSM95]

Joe is defineatly right. I use to have a GS and wanted to turbocharge it with the Hahn's stage kits. Big mistake...by the time you are done with tuning, maintinence, install, fabrication etc. your probably spending around 5-8k. You can get your hands on a nice AWD Turbocharged car for half that. You seriously have to break it down and think about everything you have to purchase on top of getting nickel and dimed to death on little misc. things to replace....I am not knocking you what so ever. If you want to turbocharge go for it, but when you start coming on here bitching about blown ANYTHING all I can say is I told you so.

 

[bastarddsm]

You're are absolutely right. I have never turboed a NT 1g motor. You know why? Cause I'm not a fuk stick who is too lazy to A) save up money for a turbo car or B) sell car and buy a turbo car.


Let me ask you something, have you ever assembled a motor? How many tranny swaps have you done? Can you do your own timing belts? or head swaps? Ever build a car from just a shell?


Ok you're saying you ran 22psi with stock IC and i hope 450cc injectors with a NT 1g motor with stock pistons? Wow where have you been? Since you must have found the secret to getting aroung the physics of the design of the NT pistons, please share your infomation and finding. I do hope you documented all this to share with the world.

First thing get a goddamned clue. I am 19 and a full time physcis student, asshole. Some of us out here don't have the money to go and buy a awd, or a factory turbo car. I spent many hours doing reasearch and lots of junkyarding, and the result is my car is exactly like a turbo car in every aspect, except for the emmisions garbage, which have been modified to work with the turbo. Guess how much i have in my car right now including buying the car $900. And when I am done I bet it will be faster than your factory turbo car for lots less money.

Secondly, what the hell does any of the thing you asked have to do with this thread, but because you asked i'll answer. I spent my childhood growing up in a place called betz automotive in mendota, il. The owner of the shop had 200mph+ top gas dragster. I could name every part in a small block chevy before I was in pre school. So yes i do, do all my work, I have put together a 4g63, have done numerous timing belts, I'm not sure what ya mean by head swaps, but I have had mine off a few times. Now about the tranny swaps you mentioned, was that taking one out and putting one in it's place, or was it doing a full auto to manual conversion like I did, or was it a fwd to rwd like I am planning on when I am done with school and can afford it? No, I have not built a car from just a shell, but I think I have had mine far enought apart to qualify for this, and if not maybe one of the frame swaps I did at the body shop I worked at, if not iam sure some thing i have done will qualify.

So let me ask you. Have you ever done any real modifying beside hooking up an afc, or a mbc, I mean somthing serious. Quite honestly I think that doing a head swap or putting a motor together means nothing, if you can follow simple instructions you can do it. If you can't then you don't belong modding any car, you have to know the basics before you can try and improve it.


Now for your rant about 22psi on stock pistons. It was with 450's as my car is just like a stock turbo car. I have no secrets, I was ignorant and thought it was fast, but it ran like dogshit as it should have. When the head gasket failed it melted the head and 2 pistons, but thats not the point, n/t pistons are just as strong as a turbo pistons. Have you ever seen them comparativly? The are almost the same except for the dome.

Wth that said Ihave one thing left to say to all that say don't turbo a n/t4g63, get your head out of your ass , and open your eyes!

 

[SexyDSM95]

Guess how much i have in my car right now including buying the car $900.

Don't believe this one bit....have receipts for proof? Or even a dyno sheet to prove all this power you have and it not just sitting in your parents driveway waiting to be fixed because something blew? :laugh: :laugh: :laugh: Sorry, a turbo + an external wastegate is like $700 brand new. On top of that even if you got the car for free you would still have to pay like $60-70 for a title transfer and registration. So, now you are telling me you took a N/T car and slapped on a turbo kit for $800 and it still runs? Ass lies....

 

[noreaga0221]

Well I'm 19 too so what. I've already owned/sold about 8 cars. Its called get a job.

So you're admitting to blowing up the car? That right there is a reason you shouldn't have attempted it. The bottom line is that you went ass backwards with the car. And this doesn't make sense. Ever hear of fuel cut? I know I fuel cutted at around 23 psi with the stock ic and 21 with a supra smic. I don't even care. Did you happen to go to the track when it WAS running? If it helps this pissing contest, my fwd went 12.8@116 on street tires with a 14b and a 55 shot. lets see your mightly NT motor hold up the some spray.



So to get it to complete gst spec, you had to swap the ecu and engine harness, motor and pistons, trans and clutch, Intake and exhaust manifolds and plop a turbo in there somewhere along the line. And buy a knock sensor and cams.


Look at it this way, how long did it take to turbo? Were you able to drive it around then? I would have rathered drove that NT around to save money for an awd. Obviously you aren't making alot of power since I don't hear you bitching about traction.

And the $900 is BS. Was the car a gift? And no, it'll never be faster, sorry.

 

[timloomis]

turbo and non-turbo trannys are the same strength.they just use different ratios is all.they dont put cheap parts in one an build the hell out of another.just the bellhousing is different,the turbo flywheel wont fit a n/a tranny.just drill a hole in the flywheel where the dowel pin is like i am doing.and putting a turbo is not as much as you guys think it is.the 2gnt guys do it for 2-3 grand and outrun you guys.n/a pistons are junk though,no discussing that.
i will have less than a grand in my turbo engine build,the turbo,injectors,fuel pump,fmic,fuel control,boost gauge,and other items.just look out for good deasl.i paid 30 bucks for my n/a shortblock,put turbo pistons in,and that was that.i have less than 400 in my engine.30 for the block,55 for the turbo,20 for the starquest fmic,40 for the bov,110 for the pistons and rings,came with rod bearings new in box,35 for mains,45 for bs elimination kit,maybe 100 in misc gaskets,traded a block and crank for a rebuilt head.just look for deals is all.any questions,ask me or one of the guys on here who turbo'd a 1g.its not that hard.

 

[timloomis]

by the way,n/t and turbo pistons are WAY different,like 1/8 inch ring land different.not being an ass,just pointing out something is all.i have both in my garage to compare.the dome is also different,like you said.wish they would have went with better pistons though.