Turboed 4g63
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MrScary wrote:
I know you can't really turn up the boost much. But could you retard the ignition to make it work?
Are you talking about turboing an originally N/A 4g63? If so, I'm not sure about your question. If your talking about a turbo DSM (ev0, Eclipse,talon,lazer,gvr4) than Your an Idiot. Look around this site. Over 50 percent of this site owns DSM's and I'm sure you can ask 92nbTsi, 99slowgsx, Jim, PSI2HI or practically anyone else about running high boost with a 4g63. What was it last year Kevin? 32 lb.s on stock internals? -
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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