Highest pulse width

[solidsnake11]

I was going to multiply the port ipw based on map/rpm.

Throttle on a turbo car is kind of all over the place since if its open enough to put load on the engine the turbo forces the air in.

[solidsnake11]

Originally Posted by Ecutek

Hello Scott,

A log and a ROM would help us a lot to try spot the issue, there shouldn't be a total fuel quantity limit but i have seen before that the total injection amount is capped by the PIDI split and the DI injection limits. So because the DI is limited to a set amount and the PI split is say 50%, when the DI is on the limit the PI can only fuel to 50% of the set limit. try adjusting the PIDI split maps to give more PI and see if your fueling improves. If it doesn't send the ROM and logs in and we can have a look.

Regards

I will try this next, I had assumed this might be what happened before but I wound up going the wrong way with the split and increased the direct injection limit so it didn't really show up in the logs.

[solidsnake11]

Adding more port injection to the ratio fixed it.

[solidsnake11]

I'm still going a little lean above 7500rpm. Maf is at 1100gs after adjusting boost compensation. I really don't think I am using that much since that is around. 1300hp.

The pulse width just kind of levels off at 7400 rpms

[Kodename47]

Same thing? Do you need to change the max RPM on the axis to allow you to change it above 7400?

[solidsnake11]

Originally Posted by Kodename47

Same thing? Do you need to change the max RPM on the axis to allow you to change it above 7400?

When I raised the port ratio it helped a lot but it still a little lean on top. Rev limit is set at 8400 after I get the cams in I plan on raising it to 9400 but I need to get the fuel under control.

I will look over it again but I think i have axis set to 10000 rpm.

[Kodename47]

Originally Posted by solidsnake11

When I raised the port ratio it helped a lot but it still a little lean on top. Rev limit is set at 8400 after I get the cams in I plan on raising it to 9400 but I need to get the fuel under control.

I will look over it again but I think i have axis set to 10000 rpm.

I'm just wondering if you need a different ratio at 8k compared to, say, 7k so you need the utilise the axis to make that transition

[solidsnake11]

Originally Posted by Kodename47

I'm just wondering if you need a different ratio at 8k compared to, say, 7k so you need the utilise the axis to make that transition

That sounds reasonable but I am thinking about installing the 2200cc injectors on the port driver then I can lower the ratio, the only problem I see, is the 50 split at idle until warm or timeout.

I have kind of wondered if the computer compares the injector pulse width at cold idle, between port and direct to calibrate the injectors to each other.

[Kodename47]

Originally Posted by solidsnake11

I have kind of wondered if the computer compares the injector pulse width at cold idle, between port and direct to calibrate the injectors to each other.

I doubt it's that clever given the amount of tables that set out these variables.