Anyone not see a gain when they went to a 2010 pipe? CPI/OVS built their turbo pipe around the 2010 pipe. Only with more bottom end. I hear hit and miss stories about turbo pipes, but it seems this one should be the safest to try.
2010 pipe
- Thread starter Mseven
- Start date
What year is your sled and what head are you running.
07 m8 with the stock unmodified head.
I initially built mine(08/09) with a 2011 pipe and y pipe, with a big turbo, and it ran really good. It was lazy on the bottom end, but very ridable.
This spring I tested an early pipe(with 2010 y) and boy did it wake up the bottom end...HUGE! Gotta run huge weights to keep the RPM in check.
I haven't had it in the exact same conditions so I can't say if I lost any top end power, but I suspect not (or not much). I know it's crazy fun to ride off the bottom now.
I have heard some stories about the big bore 925s that like the older pipe more than the 2010-11 pipe. Not sure what their setups were however.
This spring I tested an early pipe(with 2010 y) and boy did it wake up the bottom end...HUGE! Gotta run huge weights to keep the RPM in check.
I haven't had it in the exact same conditions so I can't say if I lost any top end power, but I suspect not (or not much). I know it's crazy fun to ride off the bottom now.
I have heard some stories about the big bore 925s that like the older pipe more than the 2010-11 pipe. Not sure what their setups were however.
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If you had to add weight to keep rpm's in check I would assume you gained topend not lost any. A 2010 y is they same as an aftermarket y-pipe, correct? It isn't pinched where the two come together. So is a 2010 y-pipe thicker than an aftermarket y-pipe? I was told that if I mixed y-pipe and pipe combo's I could lose power, but it seems you have found a good combo.
I think having to go with bigger weights is mostly a result of the different tuned RPM of those two pipes. The 2010 likes 83-8500 but the 2008 pipe seems to like 8000. With no other change, I had to increase almost 10 grams of weight before I could pull the motor down into the 8100ish range. I do believe I was running a bit light previously, to keep the bottom end a little less lazy.
The y-pipe is not a direct bolt on. You have to massage the bolt holes to install on the early motor. I did start with it, because it came with the pipe and was not pinched down. I left it on because I thought it would flow better than the pinched y-pipe. However, I don't know if it is thicker than aftermarket.
CPI told me they went from 27.5hp to 41.9hp at 4000rpm, and from 66.3hp to 130.2hp at 5300rpm. This was going from a 2010 pipe to their turbo pipe. Peak was 223.9hp at 8133rpm and it was still making 223.2hp at 8500rpm. This was at 10psi. Peak power was about the same on the two pipes. I don't know if the numbers were corrected.
