Originally Posted by Chicoragod2
Well it is a 98 with the biggest moter for the Intrepid, i'm in the range of around 260 when using 108 octane. anyone have any ideas for an intake or will the K&N for the 3.5 be just fine. and an exaust i'm wondering what would give the best performace there. i am also looking to supercharge it but it may take me awhile to find the time and parts needed to do so after all i'm sure the hood would need cut. but as it sits now i have an iat mod and am using a tornado. both incresed hp but i would really like more if possible without going the Nos route. BTW i am Keith C
Not sure if you swapped engines, but the 98's biggest motor for the intrepid was the 3.2, rated at 224 HP. I really don't think the 108 octane gas is giving you that kinda power. And if you run a dyno on your car, it'll show you that you're putting less than 200 to the wheels. Our trannies are weak and parasitic. Also, the IAT mod is cancelled out by the computers in these cars, and the tornado is a joke. I hate to sound totally negative, but I think we'd be doing you a great dis-siervice by letting you believe any of this is signifigantly contributing to the performance of your car. Now, that being said, here's some recommendations of some things that can truly boost the output and performance.
1.) Kenn Belle Optimizer II - You send out your PCM for about $350, and it comes back re-programmed for more power and better shifting. Only roughly 10 HP but a noticeable kick in the pants.
2.) Nitrous - Cheap, effective, but somewhat risky with our trannies
3.) 2.7/3.89 gears - Gives better low end torque. 2.7 SE's and 300M Specials have these gears.
4.) ASP Under-drive pulley
5.) K&N FIPK - the one you mentioned in your post will fit your 3.2 without any modifications. I have this in my 300M Special and it's a nice mod. Not a heck of a lot of more power, but noticeable in the 3-5k range.
Now, there's bigger and more expensive things like Turbo's and superchargers, but they're gonna run you into the thousands. You gotta remember that nobody makes down-pipes, headers, or fuel management systems specifically for our cars, so you gotta build it from scratch. It has been done before though. All that being said, welcome to the boards.