-this is a project i started my self!! the red flanges are custom made .
-the one pulley is good for 6-7psi and the other is good for 11-12 (according to calculations made on the size of our crank pulley)
- if you use the 7psi pulley you dont need computer management just a riseing rate fmu (same as dasc)but if you want more than 7 psi i would recommend a standalone or miller W.A.R chip, i also talked to a member here(bmwconnect) who can make a custom chip with fuel and ignition maps cheap
-1 degree colder plugs are recommended
- larger injectors are also recommended over 10psi ours run at 90% duty cycle at 9 psi
-there is still some fabricateing needed like mounting of supercharger, a hub to mount pulley and plumbing to filter and intake
-i look at it this way (dasc is $3500 if you can find it and u still have to convert to v belt from serp)
-im asking $450 plus $65 shipping. you will probably have to dump another $300-$500 into it and some elbow grease so thats not bad for $1000
-no internal mods needed its proven our m42 moters can handle upto 14psi on stock internals people do it on here all the time
as for performance gains the dasc unit makes an extra 40-50hp at 7psi to the wheels, depending on what shape ur moter is in ,considering the pump is the same model as dasc just a little more efficiant you should see close to the same result
- this is a positive displacement pump so you have boost thrue the hole rpm range (no turbo lag, lots of torque down low)
-as i stated earlier i had the pump checked out , you will need to grease the needle bearings and add supercharger oil b4 you spin it over-its in excellent shape these pumps go for $850 rebuilt and $2000 new all day long