Here the deal, saab kit, gm reflash, ss greentop injectors, 2.5 dp, 2.5 high flow cat with 2.5 inch the rest of the way.
When I am on 6 psi the car runs great, no problems.
When I am on 8 psi the car "hesitates" a little, just a little stutter in HIGH rpms and boost.
When I am on 10 psi the car just completely falls on it face in full boost at a higher rpm, just feels like its cutting out.
Should I change the plugs?
Any input is appreciative.
Sounds like your running out of fuel. What is your plug gap?
FU Tuning
^^Thats what I was gonn ask about the plugs.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
Im getting new plugs tonight and gapping them at .035, ill update later to see if that fixes the prob
you running a wideband? Sounds like fuel or spark but more info needed
ASE Master Certified Automotive Technician
New plugs fixed the prob, gapped at .035, running a solid 8-9 now
nice.... easy fix
ASE Master Certified Automotive Technician
Still, lower that gap to between .28 and .30. I was seeing all kinds of breakup in the upper RPM's gapped at 32.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
With MSD coils and .038 gap, my car runs perfect now @ 18 psi. It used to stutter with spark blowout at .028 with factory ignition.
2001 Olds Alero (LD9)
650 whp / 543 ft-lb
@turboalero
Im going to keep the boost around 8, maybe set it at 10, Im very pleased with the power at the moment though. So glad it was the plugs and not some fuel issue.
WHITECAVY wrote:Still, lower that gap to between .28 and .30. I was seeing all kinds of breakup in the upper RPM's gapped at 32.
It's really more vehicle specific to which gap works well. Sounds like the 35 he's at is good to go. Me personally I run 32 at 18 psi daily with stock ignition and have had good luck. I have had to change the gaps on other ecos to accomplish the same results though......
ASE Master Certified Automotive Technician
CaliforniaDomestics wrote:WHITECAVY wrote:Still, lower that gap to between .28 and .30. I was seeing all kinds of breakup in the upper RPM's gapped at 32.
It's really more vehicle specific to which gap works well. Sounds like the 35 he's at is good to go. Me personally I run 32 at 18 psi daily with stock ignition and have had good luck. I have had to change the gaps on other ecos to accomplish the same results though......
You're compairing Eco to LD9 though. Ignition system isn't the same, as well as plug depth it's self in the chamber is different.
It really is vehicle specific, keep trying different gaps till blowout is surpressed, or up the ignition power to MSD coils.
But it seems the op already fixed it so my post is utter useless garbage, but now i feel wicked important for posting such
....i'm bored at work leave me alone.
