Timing problem need help!!!!!!

[Florida240sx]

Pissed and going crazy at my car right now. So I parked it until I can find out what is wrong.IAP Turbo kitArias 8.8 pistonsCrower v2 camsEnthalpy ECU tune for z32 MAFS and 555cc injectorsRunning 15psi on a IAP's t3/t4Car runs great until about 5800rpms and is completely dead at 6k rpms. Mdm techtom on the car and a innovate Wideband,also safc IIA/f Ratio is high 11's through the whole mapTiming is at 15-17 degrees until 5800rpms where it jumps to 19 and at 6000rpms it jumps to 27 degrees....

I have a little bit of fuel subtracted up to 5400 rpms. After that nothing is done because the car starts to lean out and the timing jumps back to stock...

Does anyone have any clue why my timing jumps? Or is it just a bad/corrupt ECU tune?

[PapaSmurf2k3]

have you tried emailing enthalpy and asking them if its normal? im sure they could help you out.

[klattr1]

that is too much timing for sure at 6000 rpms...but it seems kinda coincidential that your car feels powerless and is running that timing number....like its going from a higher load part of the timing map to a lower load part of the map within 300 rpms...i would watch your airflow voltage during that RPM range and see if it goes up and then drops alot at 6000 rpms...

i can think of anything else that would do that to your car unless your spark was breaking up like crazy causing the car to lose power or major boost leak or something...hard to say

[Florida240sx]

I am running 15psi.......I'll go turn it back down to 10psi and see if it is spark loss.... There is no miss or anything.... Just instant nothing...

[j-z]

i highly highly doubt its your spark fuking up at only 6k plus, so i doubt your boost psi has anything to do with it. id def call enthalpy asap and tell them whats up. doesnt sound right at all though. BTW, my z32 maf is good! im gonna put it in tomorrow and then on with my 15 psi spring.

[Florida240sx]

Sounds good....My car is still messed up with timing. Turned psi back down 10....and it sucks.....timing problem still consistent. My airflow% stays constant at 30-32%Car still flies shifting at 5800rpms Anybody got any other ideas before I send my ECU back???

[Kenrik]

Anybody got any other ideas before I send my ECU back???

Swap in a SR?

[klattr1]

have you gone through any motors with this tune?

[nissanfanatic]

Sounds good....My car is still messed up with timing. Turned psi back down 10....and it sucks.....timing problem still consistent. My airflow% stays constant at 30-32%Car still flies shifting at 5800rpms Anybody got any other ideas before I send my ECU back???

I hope you mean it peaks at 30-32% consistantly.. It should vary much more than that throughout the RPM range.. And it seems kinda low for 10psi. IIRC, I was peaking at 42% on 7psi(256whp)...

[Florida240sx]

No motors blown yet. Becuase only hit this a coupel times and it's freshly built motor. Once while a SS camaro messed with me and then about 6 times seeing what my readings say.The timing jumps back up to 27 degrees at 6k rpms....My z32 mafs is pre-turbo.....When I was at 15psi the safc read 41% air flow... I can go do another quick run and see what it says now....What would make my timing go back to stock....

Just turned it back to 15psi and put in new spark plugs....same thing....
Modified by Florida240sx at 5:24 PM 9/3/2006

[j-z]

just a quick question, whats your base timing at? and z32 maf is on . probably do the spring tomorrow.