i have a stock 99 eclipse gsx. what shoud i do to it to make it better performance wise. and what ones should i do first? im trying to keep it on the quieter side so perferablely no loud mufflers. also, what can i do to make the car last as long as possible?
2006-09-02 18:23:12 · 9 answers · asked by Dark 2 in Cars & Transportation ➔ Car Makes ➔ Mitsubishi
The sweet thing about the GSX is it uses the 4G63 2.0 liter, 16 valve, DOHC turbocharged and intercooled in-line 4 cylinder engine. It is a very stout engine, though they did actually have some issues (mainly gearbox issues, though). But, they can still like a train if taken care off properly.
There is also lot of free mods you can do. The EPA regulates the amount of noise a car can make- everything from gear whine to engine noise to exhaust and intake noise. So, Mitsubishi had to significantly muffler the intake noise and reduce the "whine" of the turbo. Just replacing the airbox and snorkel will yeild over 10-bhp due the huge mounts of muffling in it that restrict airflow. The exhaust also has to muffle soem turbo noise, so replacing it with a full system will gain over 20-bhp easy. The combo of new intake and exhaust is a big one- you will notice and feel the gain.
Also, the stock blow-off valve is a good unit, and a popular mod to do to the blow-off valve (BOV) is to "crush" the top, which allows it to hold boost pressure longer. The stock BOV doesn't hold onto max boost for a long time, but once you crush the top, it cna hold it for over 4 minuets (longer than you'll ever be at unless you Auto-X). But have a professional do it or you can really damage it.
Just Google "DSM tips" and find a few sites that have free stuff you can do for extra power. Boostjunkies is a good site. They have the top 10 upgrades for the most power and you can easily get over 500-whp from the 4G63. Good luck!
2006-09-04 16:34:27 · answer #1 · answered by yazukka 2 · 0⤊ 0⤋
Any car, intake and exhaust, especially if it is turbo. A bigger exhaust will let that GSX breath so much better. AN intake will help you get that air. You might also want to run a boost controller to get more power, but be careful, don't let the car run too lean. If you are going to do some stuff to your Eclipse, put some good gear oil in your tranny and diff. Those transmission are known to grenade when to much power is put to them. Its a good base car, have fun, enjoy, and be safe!
2006-09-03 01:28:43 · answer #2 · answered by 510Driver 3 · 0⤊ 0⤋
First of all, Mitsubishi engines are absolutly terrbile. It's hard to find one that isn't rebuilt, or in need of a rebuilding after 100,000 miles. If you're really looking for better performance, you should save all the money that you would put into that poor car, and get something that you can really work with.
If it's putting off blue smoke already, you're pretty much boned. If not, the blue smoke is coming soon. Mitsubishis are like clockwork.
2006-09-03 01:26:13 · answer #3 · answered by Anonymous · 0⤊ 0⤋
AWD turbo! Cool! But mistubishi's aren't that great, I would just keep it simple, like an intake, exhaust definitely, maybe a bigger turbo/intercooler, but when you do performance mods your car usually gets louder, but only if you get an exhaust with a silencer, or an external wastegate that you can automatically shut off from the inside.
2006-09-06 01:17:35 · answer #4 · answered by Christine 2 · 0⤊ 0⤋
get another car!, not kidding. my friend has the same car it's a 99 gtx. he bought it used for 12k and now he spent more than that amount just fixing it on a regular bases. personally i dont like their motor. very unreliable.
2006-09-03 01:44:29 · answer #5 · answered by Young 2 · 1⤊ 0⤋
These mods in this order:
Intake - light mod (K&N or AEM recommended)
Exhaust - light mod (Magnaflow recommended)
Headers - moderate mod (CMF short tube, unless in California.)
Nitrous - mid/extreme mod (NOS or NX recommended)
Turbo - extreme mod (Greddy, custom fab might be required)
Have fun!
2006-09-09 04:07:30 · answer #6 · answered by Travis 2 · 0⤊ 0⤋
cold air intake, denso irridium spark plugs, McGreggor Spark Plug wires, Invidia Cat Back Exhaust system, clean it so it looks faster, use 100+ octane gas, tune it up, dyno tune it, and much more..
2006-09-03 12:18:03 · answer #7 · answered by Michael K 3 · 0⤊ 1⤋
when you open the air flow you will get better preformance, but you will also get sound. go for a magaflow muffler.
2006-09-03 01:32:08 · answer #8 · answered by Eye Candy 3 · 0⤊ 0⤋
dump the POS and buy a ferrari
2006-09-03 01:24:46 · answer #9 · answered by combatpilotx 1 · 1⤊ 1⤋