Turboed 4g63
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MrScary wrote:
If you put a turbo on a NA 4G63 you can only turn the boost to like 8 psi. Would retarded the ignition let you turn up the boost more. Sorry I didn't make it as specificyoud have to ask psi2hi on that one...i'd say you could probably run around 12
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www.dsmtuners.com has a good forum on na 4g63........
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MrScary wrote:
I've been checkin out dsmtuners but I can't register because I only have free email addresses
then just don't register.....I haven't registered and I can still access the forums.
ps- dsmtuners does recommend not much more that 8lbs on an N/T 4g63 -
I thought the number for the motor in the N/A DSM's was a 420A?
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it's all how you go about tuning the na-t. if you just use a fmu, then you'll be limited to very little boost, but if you get a better means of tuning (ie piggyback) then you might be able to run a bit more. as nick thompson will tell you, it's not how much boost you run, but how much air you're pushing in, get a 57trim and run 5psi
you won't be disappointed -
If you wanna do it right buy a turbo ECU and wire in a knock sensor. Thatd the big downfall on the N/A there's no knock sensor. The knock sensor is the sole purpose on why DSM's can take all the abuse and high boost w/o instantly blowing up. The NA is 9:1 CR and the ringlands are moved furher up on the piston so your gonna have to be a lot more careful w/ the tuning but it will make more power then the standard turbo DSM on the same boost.
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I would have to say that the pistons are the big downfall with the NA motor getting turbo'd. You can build any motor without a knock sensor. And even tune without it. But even with a knock sensor in a NA motor, you are still limited to what the pistons can handle.
Wiz
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The knock sensor is the whole survival of a DSM, point said and done. 9:1 is not a crazy high compression ratio. The pistons will take the boost no problem. But w/o either A) A knock sensor, or B) A piggyback tuning device and some logging it will not work. W/ either or those or even both would be nice the motor will go strong and make more power than your standard turbo DSM.
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all you need to turbo your car (cheaply) is the turbo manifold, turbo, intercooler and fuel control. with the dsm, you have access to the ecu, which is perhaps the most difficult thing to figure out with a lot of na-t cars. but with the new ecu, you'd still need fuel control (7.8:1 vs 9:1), so i think it would be easier to just get an afc (ecu piggyback) and play from there. a knock sensor would be a great idea... almost easier to just get a 4g63t. look around on dsmtuners, try to find a way to get an account on there so you can use the search function.
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or if you really want to turbo you n/a 4g63 i have 7 bolt turbo cams, rods, crank...pretty much everything from a turbo 7 bolt 4g63....the pistons are okay but they need new rings.
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straightline specialties in fargo: http://www.straightlinespecialties.com
I'm gonna have to disagree with out there, its not really easier to get the entire 4G63 becuase it will be alot more expensive.
The best way to do it would be to get all of the needed parts: Turbo ECU, Knock sensor, turbo injectors (450cc not the auto ones), turbo, manifold, oil lines.
If your looking to actually make power, you'd want to look at getting different cams. The NT 9:1 pistons arent terrible, with correct tuning and that higher compression you can put out some good numbers.
Your going to also need a fuel pump if you plan on running any amount of boost.
Depending on what parts you can find used, it might be sort of costly to do right. There cheaper ways to do it, but if its just going to blow up whats the point?
Might want to look in to what you can get for the car, and see if you can find a nice AWD 1G... everythings pretty cheap these days
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