First - So the problem that I'm having with my car is that when eve I start the motor up when cold it can't hold an idle. Once the engine is warmed up it idles no problem. I've recently done some modifications to it, such as a aftermarket exhaust manifold, TOE4 turbo, full intercooler piping and other little stuff. I know that changing around the stock intake will throw your stock computer setings outta wack, but if that were the case wouldn't it idle rough at all times? I've asked aroudn and ppl keep saying its vaccum hose but again, would that affect both hot and cold idle? I have a hunch it may be the O2 sensor or the coolant temp sensor. If anybody has any advice it would be appreciated. One guy also suggested that there could be air gaps between matting surfaces ie. the head and the block. Once the motor heats up and the metal expands these gaps would get closed up. I've never heard of this before and find it kinka of unlikely but the guy whole told was a reputable mechanic, but on the other hand i did just change my head gasket out for a metal one.
Second - I am planning on building my own front facing intake manifold for my car this spring. From the get go it seems like a great idea performance wise and definetaly look awesome. I was originally planning on building it out of stainless steel because I don't have the equipment or know how to build it out of aluminum. after talked to a few people again I got some mixed answers. One, steainless steel will hold to much heat, which is true, but it will be constructed out of thin walled stainless steel pipe which can't hold that much heat. Second, it will be to heavy, again what i just said above, its not like it is going to be a cast piece. And third, Building your own custom intake manifold really has no performance increase over stock. The stock manifolds have been engineered so much that anything that I copulf construct most likely won't be able to match the air flow that stock has, the 5th and 6th cylinders will run to lean.
Thanks to anyone who put in the time to read through this and I'd like to hear what anybody has to say, or havd experienced them self.
Second - I am planning on building my own front facing intake manifold for my car this spring. From the get go it seems like a great idea performance wise and definetaly look awesome. I was originally planning on building it out of stainless steel because I don't have the equipment or know how to build it out of aluminum. after talked to a few people again I got some mixed answers. One, steainless steel will hold to much heat, which is true, but it will be constructed out of thin walled stainless steel pipe which can't hold that much heat. Second, it will be to heavy, again what i just said above, its not like it is going to be a cast piece. And third, Building your own custom intake manifold really has no performance increase over stock. The stock manifolds have been engineered so much that anything that I copulf construct most likely won't be able to match the air flow that stock has, the 5th and 6th cylinders will run to lean.
Thanks to anyone who put in the time to read through this and I'd like to hear what anybody has to say, or havd experienced them self.
