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1g 4g63 uprades....resonable or not?

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dsm_4g63

Probationary Member
25
0
Mar 28, 2008
corpus chirsti, Texas
okay i'm new to here and i've been looking into this alot. i just recently baught a 1990 laser with a n\t 4g63.. and i know that this motor runs at a higher compresstion ratio than the 4g63t model.. but heres what i have lined up to do with this project and i was wondering if its a resonable project or if i should look a little bit more into it. to get a higher air fuel ratio out of the motor to get higher hp out of it.. any help..

motor:
the block is getting bored 50mm
then a 50mm stroker kit
-balance shaft elimator
-oem rebuild head kit
-ird polished racing valves
-ird dual valve spring\retainer
-ird valve guide
-ird machined valve locks
-bie solid lifter upgrade
-crower cams stage 2
-aem high flow fuel rail
-high flow fuel pump
-fuel presser regulator
-greddy piggy back system
-NGK O2 kit
 
I think you would have less money and more power in it if you gutted the motor and put turbo internals in it. Along with the turbo of course:p
 
I think you would have less money and more power in it if you gutted the motor and put turbo internals in it. Along with the turbo of course:p

Nice try going the non turbo all motor way but it costs to much with minimal hp gain. Not to mention they dont make all motor cams for the 4g63, cause there is no point if the stock turbo motor can make 400-500 hp, and hold 30+ psi of boost on a stock block.
 
So you want to bore it and stroke it about two inches? 50mm is about 1.98 inches. Lol, good luck finding pistons : D You'll be spending the same amount on a crank and pistons, why not get turbo rods and strap a turbo on that thing? Turbo is the way to go.

If you're dead set on it, consider a MS. Piggybacks, that I know of, can't do spark timing, you'll need all the help you can get. You can upgrade the fuel system to one from a turbo car, you'll never outgrow it unless you boost it. The 1g fuel rail, injectors, and pump will be way more than you'll need.
 
I agree with what has been said, It would be a waste of time and money to build a N/A motor. just get some turbo internals, and you will be much happier in the long run.
 
i figure it would be a lower hp motor but i was told that the n\t 4g63 do run at a higher compression rate and that a turbo would not run at its potiental. Where would i find turbo interanals. and should i still build the head the same or diferent running a turbo? would the bore and stroker kit be a good idea with the turbo..
 
It's not a waste of time if it makes you happy, but it is a waste of time if you want to make decent power.

Non-turbo engines run at a higher compression ratio because of the pistons. Virtually everything else is the same. Do some searching on here to find out more about the differences between a NT and a T.

Parts dinosaur pistons will be good. Find some 1g rods in the classifieds. Actually, skip the stroker crank, run after market rods and forged pistons. You'll have a pretty bullet proof 2.0 at that point.

Anything you would do to a NA head, a turbo head will like too. What kind of hp do you want to make? Stock head, valves, and cams will make way more power with a turbo than any NA 4g I've ever heard of. N/A and turbo heads are exactly the same except for cams, so maybe grab a set of cams.

You need to read some more about converting a NT car to turbo. All the information you need is out there. With the $$ you were going to put into that head, most people could have a good running turbo mill in their rides.

I'll lay it out this way as far as the things you need vs. the things you've mentioned wanting. A 2.4 (bored and stroked) NT 4g will top out at about 250hp, maybe 30-40hp more, but those last 30-40 will cost you big bucks. A junkyard 6 bolt with the 14b turbo will top out at around the 325-350hp mark. A bigger turbo and the bottom and top end will hold on until you go into the 500hp range, and the top end becomes a problem a handful of hp later on (give or take). Some people get more, some people get less.

That is to say, if you get a junkyard turbo engine and dump it into your car you'll be able to make more power than a max effort NT engine.

Of course turbo engines like bore and stroke, just like everything else does, but do you need it? Not if your hp goal was going to be met by a NT engine.

Updating your profile will be helpful too in deciding wether to stick with the NT engine you have, or ditch it for something nicer.
 
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