Mattymac, I've dynoed over 800 without NOS. When i dyno, i tune my engine for NOS. The engine in my truck has a stock long block. Stock valves, no port job, stock cam. I took not one, but two trucks, one with only 1200 miles on the odometer, and they took the two top DODGE spots at MM'06. I'm sure that i've tried many more turbos than you have. Probably 20 dif. singles and 10 sets of different twins. (the more testing on the dyno will tell the sory). Twins have made less power with the dyno testing i have done. Hey, I used to like twins, they looked impressive and i thought that they should beat everything, but every time i got on the dyno, I got beat by a truck with a big single. Twins heat up the air more, PERIOD! More boost is more heat. Go touch your air compressor when its running and its about 100 psi! More intake heat is less dense air and less oxygen. There are no bypasses to bypass 1300 cfm air through the small 700 cfm air turbo on the compressor side. I've done the dyno testing. Trucks with the same setup as mine, but with twins dyno over 150 HP less than mine, I wonder why? Any way, twins heat air, when the air is hot there is less oxygen. If you don't believe me then go spend(waste) your money and throw on a set of twins. Hardly anybody intercools between turbos and if you want to make top power with twins, then you need to intercool between the stages. Now lets compare apples to apples, we are talking about making HP, not drag racing or sled pulling. As far as driveablity, you have not driven in my truck, so don't go there. It pulls cattle trailers all over this Valley and beats anything thats next to it. I'm sure my setup would not be the best at 5000 ft, but at sea level it runs with any other turbo, at least on a common rail. As for 12v and older 24V trucks its harder to run a large turbo on the street, but the common rail engine tuned correct CAN run a large turbo very easy. Twins just take too much power to run and restrict too much on the intake and exhaust side. ALSO, mattymac, ... ... have you ever tried to take a leak in the wind, lol. Well, what do you think happens to your spray angle when you have 85 psi coming into your chamber. The tests have been performed, take it for what its worth. I run a single because it makes power, not because its simpler, more reliable, and cheaper. All in all, run what ya brung, spent your money the best way you see fit and i'll do the same. The numbers tell the story. No dispect intended, but you need to run the tests. I have a fealling you haven't, and thats okay. It just takes time, a lot of time. Oh, one more thing, the top 5 trucks at MM'06 this year were running big singles, just think of the power numbers if they were all running twins, oops.
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