Rotational idle / subaru gc8

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jasaircraft
Posts: 620
Joined: Sat Feb 16, 2008 4:17 pm
Location: Santa Cruz Bolivia
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Rotational idle / subaru gc8

Postby jasaircraft » Sat Nov 04, 2017 12:51 am

Hi
Im doing a rally 93-96 wrx atm and have finished tuning the fuel and timing maps.
Now i have enabled antilag (switch and demand) and rotational idle (throttle plate permanently open (no switch))
So i set my rot idle at
Activating engine demand 2%
1400 end rpm
0% idle valve opening (will just use throttle plate so idle valve doesnt work that much)
Conditions box disabled

I calibrated my tps to the new 0% and 100% position and started it.
It idled fine with the usual rot idle sound i have used in previous haltechs the problem is that after a while it started doing some very loud pops (louder than the usual) on the intake and exhaust.
Im going to check sparkplugs for a possible oring leak.
I leaned the new idle area on the fuel map and retarded it too (around 1300-1400rpm almost atmo pressure)
Could it be something else? Like ecu cuts being too agressive?
Edit i just saw all my sparkplugs and they they pig rich fouled i took too long to lean the new idle zone so that is probably the reason for such loud bangs
Making people fly!

jasaircraft
Posts: 620
Joined: Sat Feb 16, 2008 4:17 pm
Location: Santa Cruz Bolivia
Contact:

Re: Rotational idle / subaru gc8

Postby jasaircraft » Sun Nov 05, 2017 12:11 pm

The fouled plugs where causing the problem they where getting fouled or carbon deposits because ignition angle was too retarded because of the zero demand map.
Making people fly!


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