>>>>>>>>> posted by YellowZXTT on August 15, 2002 at 01:41 PM
Message
When we were putting my car together, Greg called me and told me about how my 16Gs would spin just as easily as the BB 2530s. This was a good representation of the quality of mitsu turbos, which was insured after the car was put together. These 16Gs spool so quick even with untuned fuel, that Greg immediately decided to get this kit(lag was a factor in his decision). Also they keep spooled in between shifts, which is something I wasn't expecting for the kind of power they make.
: I have the same problem as you - turbo selection. No doubt the 2530's will have more lag than stock but the question is how much more. Ball bearing turbos benifits are in transient boost response not in spool. Essentially if you took 2 identical turbos and you made one ball bearing the bb one would spool only slightly faster but it would not have as much lag between shifts and with take more thrust bearing loads than a typical bushing turbo.
: The 2530's flow about 50 cfm each less than the 16 g's used on TD05 kit. they spool significantly quicker and they have the potential to flow about 100 hp over the sport 500's. They key to make them work well is to have WELL ported exhaust manifolds, headwork and cams. Not to mention a goo dp / tp combo.
: As for Gregs 2 pipe dp - the concept has been proven on DSM's where the wastegate is divorced all the way thru the O2 housing and they only mate just before the downpipe. Ideally you should have a external w/g mounted on the exhaust manifold that dumps back into the downpipe. Since space is a convern that might not be the best way in a Z.
14:21:08 08/15/02
