Kraftwerks Supercharger Dynos
#101
^^^^ Thank you for your honest reply, and as far as power our goals are pretty close Im not shooting for 500 either but I probably will be running e85 because I can get it down the street. I have been looking at everything I can do to help with the mid range because that is what im worried about the most.
#102
My post largely shares Junky's thought process, no offense intended. Is a rotrex really that much more efficient than a paxton? I've seen people claim that rotrex's are more efficient but the question is really if it's considerable. I'm curious where the extra midrange comes from specifically as I'm interested in a FI setup down the road for road racing. I guess the question is ultimately whether the difference is negligible between the SOS SC kit and a rotrex kit (it seems like it is), but I guess we'll see over time.
#103
Sorry for the newbie question but is this kit (or any others) emissions legal? Locally, there is no sniffer test but they will check OBDII for fault codes.
Appreciate your feedback.
Best regards!
Appreciate your feedback.
Best regards!
#106
My post largely shares Junky's thought process, no offense intended. Is a rotrex really that much more efficient than a paxton? I've seen people claim that rotrex's are more efficient but the question is really if it's considerable. I'm curious where the extra midrange comes from specifically as I'm interested in a FI setup down the road for road racing. I guess the question is ultimately whether the difference is negligible between the SOS SC kit and a rotrex kit (it seems like it is), but I guess we'll see over time.
But like anything, bigger blower = more parasitic loss and the added efficiency of either of our comparable blowers may not make up and exceed that loss in heighten power, at a low/mid rpm range you all are after. The c38 could be worse then the c30 in the mid and provide no benefit over the paxton 1200 given a particular boost level, or it could. Matching boost levels is important when making comparisons on the same motor.
But I think if your coming from a mid range monster like the SOS turbo kit Rainh8r just did, any marginal level of mid range the c38 might provide over the 1200 wont be appreciated or possibly even perceived. You have to look at the total package of what the centrifugal kit is providing, which is top end power efficiency, and that’s where you want your engine to be efficient, which ours are. If the rotrex cant deliver up top, I think it will disappoint. If all you are after is sub 400whp with real mid range power, I think a roots style SC is the answer.
I still want to know what the max CFM from the c38 is, to the Paxton 1200 for comparable top end potential.
#109
But I think if your coming from a mid range monster like the SOS turbo kit Rainh8r just did, any marginal level of mid range the c38 might provide over the 1200 wont be appreciated or possibly even perceived. You have to look at the total package of what the centrifugal kit is providing, which is top end power efficiency, and that’s where you want your engine to be efficient, which ours are. If the rotrex cant deliver up top, I think it will disappoint. If all you are after is sub 400whp with real mid range power, I think a roots style SC is the answer.
#110
That’s a significant difference. Id say about 50hp. The midrange efficiency of the rotrex would have to be pretty significant to even match, let alone offset anything the 1200 could provide at its peak efficiency. I'm thinking it’s the same song and dance between the c30 and old paxton blowers. If you’re not going to run the 1200 at full rpm then the c38 may show an advantage in mid range, how much remains to be seen.