tuning help please
06-09-2002, 11:35 AM
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***Tuning help please !!!!
Finally my overheating problems are solved. I change my headgasket this weekend and with all the advices i got. I replaced it with an Honda headgasket for only 28 bucks. Started the car up, the way I had my car tuned previous is probably the reason why I blew my headgasket. (TURBO NEWBIE).
So i turn my timing back to normal, adjust my fpr back to 38 psi (vac on). Install new ngk spark plugs and gap them at .030. However, i install a 1998 GSX fuel pump. All I need now is what kind of tuning advice can I get out there because it bogs or stutter from 1k rpm to 3 rpm..and after it runs... but sometimes it bogs too. Am I running to rich.. I adjust the fuel, advance the timing. It helps a little bit, but I can't really tune it down to the way I had it before. Now all of sudden I am boosting 10 lbs after messing around with the fpr and timing. Check the vacumm... everything is okay. I run pretty good, but it leans out on my air/fuel ratio as the rpm goes up. Is that safe or not? I know running my car lean can equal to blown engine.
That's why I need yall advices out there; can you guys help me out about tuning my car. Like what timing should i set it at and mainly with the FPR..... about the 10 boost problem i have too.
Here is my setup:
greddy turbo kit w/fmic
Aem fuel rail w/fpr
vortech FMU 12:1
BOV type S
msd 6a
GSX fuel pump
and I think that's it........ (all I can remember)
P.S: i do have a vafc in the box, but not ready to install it yet..... do know how to tune it... or waiting for afc hack. I have the resistors, just need injectors and a upgrade fuel pump unless i can use the GSX one.
Thanks in advance
[Modified by khang77642, 2:36 PM 6/9/2002]
[Modified by khang77642, 4:18 PM 6/9/2002]
So i turn my timing back to normal, adjust my fpr back to 38 psi (vac on). Install new ngk spark plugs and gap them at .030. However, i install a 1998 GSX fuel pump. All I need now is what kind of tuning advice can I get out there because it bogs or stutter from 1k rpm to 3 rpm..and after it runs... but sometimes it bogs too. Am I running to rich.. I adjust the fuel, advance the timing. It helps a little bit, but I can't really tune it down to the way I had it before. Now all of sudden I am boosting 10 lbs after messing around with the fpr and timing. Check the vacumm... everything is okay. I run pretty good, but it leans out on my air/fuel ratio as the rpm goes up. Is that safe or not? I know running my car lean can equal to blown engine.
That's why I need yall advices out there; can you guys help me out about tuning my car. Like what timing should i set it at and mainly with the FPR..... about the 10 boost problem i have too.
Here is my setup:
greddy turbo kit w/fmic
Aem fuel rail w/fpr
vortech FMU 12:1
BOV type S
msd 6a
GSX fuel pump
and I think that's it........ (all I can remember)
P.S: i do have a vafc in the box, but not ready to install it yet..... do know how to tune it... or waiting for afc hack. I have the resistors, just need injectors and a upgrade fuel pump unless i can use the GSX one.
Thanks in advance
[Modified by khang77642, 2:36 PM 6/9/2002]
[Modified by khang77642, 4:18 PM 6/9/2002]
06-10-2002, 12:16 AM
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Location: Sacramento, Ca, United States
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Re: ***Tuning help please !!!! (khang77642)
I think that with the fmu you'll need to use an inline pump not the one off a GSX.
There needs to be a inline to pressure the fuel right before fuel travels into the fuel rail. Remember that your running stock injectors and not 440's like the GSX's do so GSX's with their bigger injectors can use those stock pumps, but you cannot and wil need an inline fuel pump.
There needs to be a inline to pressure the fuel right before fuel travels into the fuel rail. Remember that your running stock injectors and not 440's like the GSX's do so GSX's with their bigger injectors can use those stock pumps, but you cannot and wil need an inline fuel pump.
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