any 5.3 tunes?

[Aint Skeered]

untill i learn all the tricks,
400=.87
800=.87
1200=.87
1600=.84
2000=.84
2400=.84
2800=.84
3200=.84
3600=.80
4000=.80
4400=.78
4800=.75
5200=.77
5600=.77
6000=.77
after that they all show .77 untill the end.


does this do any good?

[vatman02]

if divide stoich 14.62857 by .87 you get 16.81 that is the AFR you are commading for pe you should be closer

Well, you'll want to remove the delays in the tune (B3608, B3609, B3610).
By default, PE isn't enabled until you're above 90% throttle. I'd lower that quite a bit to get into PE a bit sooner.
B3618 is usually a bit rich from the factor for a naturally aspirated vehicle. You'll want to target something in the 12.5 - 13:1 range rather than the default 11.x:1 at WOT.
When PE activates, it not only will richen the mixture up to the values in B3618, but it will also increase timing as specified in table B5908.

[dc_justin]

untill i learn all the tricks,
400=.87
800=.87
1200=.87
1600=.84
2000=.84
2400=.84
2800=.84
3200=.84
3600=.80
4000=.80
4400=.78
4800=.75
5200=.77
5600=.77
6000=.77
after that they all show .77 untill the end.


does this do any good?

It looks like you're viewing AFR in Lambda.

Lambda = AFR / Stoich

Conversely, AFR = Lambda x Stoich. At 4800rpms, your PE mode fueling is commanding 11:1 AFR

[Aint Skeered]

is there a way to make it read afr instead of lambda?

[Aint Skeered]

never mind. edit>properties done it.

should i put it set to 12.7 across the board?

[Aint Skeered]

also, what about setting pe to come in at 3000? is that about right ? lower or higher?

[joecar]

65% TP below 3000 and 35% TP above 3000 should be ok...

[Aint Skeered]

where are you talking about 65% below 3000 and 35 % above? what area? you lost me. b3616 maybe?

[Aint Skeered]

i am showing in the b3616 to come in at 90%. is that where you move to 65%- 30%?

[joecar]

Yes, B3616 PE mode enable...