VE table generator ?

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VE table generator ?

Postby Motoren » Thu Dec 28, 2017 8:02 pm

I was messing around with the Ve table generator, why doesn't it take into account what size injectors you are running?

It just come up with some weird high numbers for the most part, and there is a lot of difference between turbo and turbo w/intercooler too.
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Re: VE table generator ?

Postby billr » Thu Dec 28, 2017 9:44 pm

The VE of a particular engine has nothing to do with the number of injectors or how much they flow. If you find changing injectors requires much change in the VE table, then either the req_fuel was incorrectly calculated or the injector dead-time is incorrect.

I can't really help with the turbo question, but would expect the VE to be quite different with inter-cooling. That's one of the main benefits of inter-cooling isn't it, to increase the amount of air on each cycle? I understand that some of the "increased air" is handled by VE, and some by having MAP "multiply" on, but can't explain much more than that. If you don't have multiply on, then the VE table will end up with some especially high values but they won't really represent VE any more.
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Re: VE table generator ?

Postby Motoren » Fri Dec 29, 2017 1:50 pm

I mean, if I use the "fuel VE table 1-> Tools-> VE table generator" to give me a fuelmap to start with. that just come up with something that seems very wrong.

my ms3pro is not up and running yet so I downloaded the pnp 2jz file to have something to play with.

this is how the VE table looks like from the pnp file.

Skærmbillede 2017-12-29 kl. 21.41.56.png
Skærmbillede 2017-12-29 kl. 21.41.56.png (156.25 KiB) Viewed 222 times


and this is when I hit the generate button.

Skærmbillede 2017-12-29 kl. 21.42.30.png
Skærmbillede 2017-12-29 kl. 21.42.30.png (142.21 KiB) Viewed 222 times
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Re: VE table generator ?

Postby Motoren » Fri Dec 29, 2017 2:07 pm

this is how its generating the VE table if I put in data from my friend 2jz engine.
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Skærmbillede 2017-12-29 kl. 22.04.12.png
Skærmbillede 2017-12-29 kl. 22.04.12.png (149.51 KiB) Viewed 220 times
Kent
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Re: VE table generator ?

Postby jsmcortina » Fri Dec 29, 2017 2:08 pm

Hmm... both look wrong to me?!
EDIT: and the third is clearly garbage, how accurate is the input data?

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Re: VE table generator ?

Postby Motoren » Fri Dec 29, 2017 2:26 pm

last VE generator is plotted in with this dyne sheet, its with 280kpa absolut pressure and its crank hp. WHP will be around 100hp less. but the table generator doesn't say anything about it its who or not,
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Re: VE table generator ?

Postby Motoren » Sat Jan 06, 2018 5:47 am

No one knows why the table generator is making tables with such large values?
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Re: VE table generator ?

Postby LT401Vette » Sun Jan 07, 2018 11:52 am

Not really, that will take some digging. But it clearly doesn't like your inputs..
It looks like you converted nm to lbft, but not Hk to HP. I did though and things don't look much better.

I would guess it is with how close together your HP & TQ are RPM wise.
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