CantZme Posted February 8, 2006 Share Posted February 8, 2006 My z is currently in the shop getting it's final touches and my msns put on(yes i am turbo challenged, but i am learning). Currently running a stock internal l28et that will be controlled by the ms. Mods are t3/t4 hybrid turbo with stock t3 hot side, 437cc ford cfi injectors, pallnet fuel rail, walbro fuel pump, aeromotive fpr, 60mm tb , npr i/c , 2.5 in tig welded i/c piping, 3 in dp and 3in mandrel bent ex. and a stock drivetrain 74 260z. My real question is what timing and boost will give me safety with driveability. I was thinking a 12psi on a conservative tune with ign timing adv 2 degrees would be ok, but dont really know what kind of power i would see or if it would even be safe to run daily. My ultimate goal is a low 13sec daily driver with extreme reliability. what is my rear end good for, as far as whp? please help Quote Link to comment Share on other sites More sharing options...
Mack Posted February 8, 2006 Share Posted February 8, 2006 I dont have answers for all those of those questions, but I can answer a few. your 260Z, unless its a 2+2, should have an R180 rear end. not sure on the durability of it, but since you are looking for reliability in a 13 sec daily driver, i would suggest an R200 swap. by the looks of it, your set-up with 12 PSI should probably be, ooh, say in the 250rwhp range off the top of my head. which, in a first gen body, should be good for low low 13sec passes, maybe break into the 12's with a little more boost. all depends on the tuning. you sure do have all te right parts tho. Did you have those ford injectors flow tested? I had some i thought were 440CC (as indicated by the part number, 0 280 150 400), I sold some to a freind to put on his CA18DET 240SX. ran pretty rich, couldn't figure it out with the SAFC. he pulled quite a bit of inj duty cycle and finally got it to run right. I later found out that those injectors were sort of a gray area as far as flow. some sites list them as 437cc, some sites list them as 46lbs/hr and some sites list them as 510cc. GOK ( god only knows) which is the right one. but Im leaning towards the 510cc/min based on my freinds experience. Quote Link to comment Share on other sites More sharing options...
Clifton Posted February 8, 2006 Share Posted February 8, 2006 I was thinking a 12psi on a conservative tune with ign timing adv 2 degrees would be ok, You need to know total timing. 2*advance doesn't mean anything if you are running stand alone. I'd run more boost, 16-18psi. Try 22* total. I would'nt run less than 20* at full boost. You can run higher boost and be reliable as long as you aren't on the edge of deto or running too muach timing. I run alot of boost and have reliablity. Quote Link to comment Share on other sites More sharing options...
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