: Northstar Performance Enhacements?



okcadidriver
01-09-05, 03:32 PM
I just bought a 98' STS and I love the power. I was just wondering if someone might have done some things in the performance area to get a little more power. If anyone has any suggestion please help me out.
thanks,
chad from oklahoma

danbuc
01-09-05, 05:02 PM
I can tell you what I've done and I'm planning to do. I put the Corsa Exhaust on my car. A little more power, and alot better sound. I'm looking into putting a highstall torque converter and a positraction differential in my tranny. This will improve the launch of the car, while at the same time improve traction. There isn't much to be done in the way of air intake. I bought a set of EBC Slotted rotors and pads for my car. Excellent braking now. You can always remove your spare tire for a quick run, although I would recommend keeping it in the trunk during normal use. You never know when you might need it. If you upgraded the exhaust, a K&N filter "might" help, maybe.

Other than this, there are alot of parts out there, but none that will really give you anything worth the money you spent on it. Here are a bunch of links I've found for stuff-

http://www.rsmracing.com/

http://www.domesticperformance.com/

http://www.converter.cc/home.htm

http://www.corsaperf.com/auto.htm

http://www.ebcbrakes.com/

http://www.trademotion.com/partlocator/index.cfm?siteid=213761 - This place has some of the best prices on OEM parts you'll find anywhere.

Thats all I got right now. To be honest, there really isn't much out there for these cars, since they are already pretty damn fast to begin with. Good Luck with your new car. :thumbsup:

okcadidriver
01-10-05, 11:04 AM
Where can I get a chip for my norhtstar motor?

danbuc
01-10-05, 01:39 PM
You can't. The 1996 and up models using OBDII software in the computer do not have a removalbe EEPROM chip like the 1995 and older modles did that used OBDI. If you want a chip, your going to have to buy a 1995. There are some people, including me that are trying to figure out how to hack into the computer, but none of us have had any success. To be honest, the most gains you would really see from a chip would be the removable of the top speed governor. If your friends with anyone at a dealer, they could also do this for your. Good Luck. :thumbsup:

BeelzeBob
01-11-05, 02:42 PM
I just bought a 98' STS and I love the power. I was just wondering if someone might have done some things in the performance area to get a little more power. If anyone has any suggestion please help me out.
thanks,
chad from oklahoma

Single biggest bang for the buck is a higher stall speed torque converter to get the car launched and the engine up to higher RPM (where it is making power) quicker. Get a 3500 stall speed converter from Yank.

Low backpressure exhaust. Cat back big pipes and low restriction mufflers.

The engine is already putting out pretty good ...it is just a 280 cubic inch motor keep in mind in a 4500 pound car. HP mods will cost torque which will actually slow you down. You have the 3.71 final drive gear in the STS so you need the high stall converter and the lowest backpressure exhaust that you can live with.

No power in a chip, really. Use the best gas you can get to minimize any spark retard in the knock control system and you have the best spark and fuel ratio for power already.

an01sts
01-11-05, 09:16 PM
Stall converters are great performance upgrades. As with most performance upgrades, you have to give something up. If you're only concern is et and nothing else, it's a good soulution.

I'm not suggesting that you don't want a stall converter; rather, you may be the type of person who would like a stall converter. (In addition to stall converters, I don't care for loud exaust, so I'm limited with my options.) If you're not familiar with the changes that a stall converter will make to your car, you may want to find something with a stall converter and take it for a spin and make sure that you're willing accept the disavantages of a stall converter.

Just like loud exausts, stall converters aren't for everyone.