Originally Posted by
Jon K
1) if you turbo charge your car on that automatic you WILL break the transmission
2) superchargers have no lag - false. The superchargers that are available for the M50 are called centrifugal superchargers. They are essentially turbochargers with a gear reduction unit and a belt driven compressor wheel. This makes them not only have lag but have a LOT of lag. Yes they start making boost low rpm, but they don't achieve "max boost" until your red-line right before you ****. So basically you may only have 1 psi at 3500 rpm, 3 at 4500 rpm, 6 at 5500+ rpm, and right at your red-line you'll make your peak boost. That's really really boring and makes the car no where near as efficient as with a turbocharger. There's a saying that goes around CF blowers that they're "All the lag, none of the boost" of a turbo.
3) Do you honestly think a turbo kit for under $3500 or so is going to be real? Dude, those ebay junk turbos are barely turbos at all. they last about 100 - 200 miles before they explode filling your engine with shards of broken compressor wheel and housing. A normal turbo should cost you about $750+ by itself. A normal turbo uses bolts or a v-band clamp to hold the housings together. The SS autochrome turbos are held together with EPOXY. The eBay/SSAutochrome manifold for the BMW can work - I used one in my Holset turbo build. However, I modified it and built an up pipe and yeah its not a good manifold by itself, it has no wastegate port and it CRACKs. I used their manifold to build a former turbo setup and came in around $3000 - $3500. All I used was their manifold, the rest of it was quality TiAL parts and a Holset turbo.
4) You say "tuning is no problem". How do you figure that?