2 months later and I finally got a fuel pump for this thing. I'm glad I found the limit of the stock pump on my setup, but only driving this car around at 22psi is just silly. I went with the Deatschwerks DW300 and MAP's evoX fuel pump adapter kit. Install was a minor PITA but an extra set of hands made it pretty easy.
Stock assembly, partially taken apart:
MAP assembly w/ DW300 pump. I ended up rotating it slightly to fit the filter in the hanger better. The MAP kit is nice b/c it locks the pump in place:
Coiled up, no kinks!
Then a few other things to get ready for spring. Bled the brakes with fresh ATE blue, checked pads (plenty of meat left on DS2500s), swapped on the rotas/sumis, cheese fries and cherry coke at checker w/ spaz, swapped gear oil in the rear diff....ATF fluid drain for the AYC was stuck (bent my cheap 10mm allen), topped up xfer case, and just generally checked things over from the bottom of the engine bay--no leaks yet!
Went for a quick test. Car runs just as before driving gently. DW300 pump is *silent*. Under WOT, AFRs are consistently half a point richer across the board and a full point above 7000rpm. Step one, check! Step two: moar boost! I cranked up the MBC 2 full cranks. This results in peak boost right around 25.5psi. Third and 4th gear the car holds about 24psi. It feels like a new monster has awoken from within!
On the dyno, with an extra crank and some on the mbc the car would do 27psi peak and taper to 22-23 IIRC. I'm going to lean out the afr a little and leave the boost right where it is for the cruise in two weeks. More to come after that, gotta do something about this pesky maxed-out maf sensor before dyno day
Thanks again for the help spazzy!
Threaded Mode