Author Topic: VemsTune and 1.1.6x release  (Read 188765 times)

Offline Arthur

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Re: VemsTune and 1.1.6x release
« Reply #195 on: January 21, 2010, 03:02:12 am »
Hy all

I've upgrated ti 1.1.63 now.

With old HP ombibook 6100 no connection problems.

I still have some sanity check problems that I can't get rid off.

Output channel collision.   Injector outputs collision with vvti channel
Warup_clt(9)                  Please check warmup
Tooth_wheel_twidth[0]    Please check tooth_wheel_twidth[0,1]
Shiftcut and launch         Please check shiftcut input
boost_egtdec                 Please check boost target reductio above EGT and fuel added above EGT Limit

I can't find vvti anywhere in VT.
Checked warup but can't find problem.
Tooth wheel.     6 deg on 60 - 2     Should be oké!
Shiftcut    checked all not needed is diabled?
boost_egtdec     no matter what, it go's back to -85 and 616

What does map corr do?

I really like the F1 help function. It's the VT itselfs that bugging me the most. I cant find how to increase complete map by a certain %.
Like hole map x 1.2
                   
« Last Edit: January 21, 2010, 03:14:21 am by Arthur »

Offline Sprocket

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Re: VemsTune and 1.1.6x release
« Reply #196 on: January 22, 2010, 05:59:38 am »

If by setting the Injector Firing Divider to '1', Alternate Banks to '3..0', then Cranking Fire Banks While Cranking to 'All Banks' and then Cyl for Sequential, #Cyl/2 forSsemiSeq Cranking Fuel Divider to '1', will not add four times as much fuel at cranking???...
Like I said, the pulsewidth that is calculated from all the enrichments is divided over the 4-stroke cycle so the total pulsewidth is the same. To add fuel you need to alter the enrichement tables. The only thing you're doing with the cranking fuel divider is to decide how much to split the total pulsewidth over the 4-stroke cycle.

Ok, fair enough but I then fail to see the reason for 'cranking fuel divider' whether it is 1, 2 or 4 times per cycle resulting in only the exact same amount of fuel being elivered during cranking.

I thought 'fire all banks while cranking'  turned the cranking injection sequence from sequential into batch and the divider was used to then divide the calculated PW  by the number entered in 'cranking fuel divider'  1 for sequential, 2 for semi, and 4 for batch.

Its all a mystery to me ??? why do we have settings that give the same end result. Its a lot of un necessary configuration for no gain.

Im not being awkward, i just cannot see logic lol.

Offline mattias

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Re: VemsTune and 1.1.6x release
« Reply #197 on: January 22, 2010, 10:15:12 am »
I really like the F1 help function. It's the VT itselfs that bugging me the most. I cant find how to increase complete map by a certain %.
Like hole map x 1.2
Ctrl+A, Q/W/E/R

Offline mattias

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Re: VemsTune and 1.1.6x release
« Reply #198 on: January 22, 2010, 10:17:54 am »
Ok, fair enough but I then fail to see the reason for 'cranking fuel divider' whether it is 1, 2 or 4 times per cycle resulting in only the exact same amount of fuel being elivered during cranking.

I thought 'fire all banks while cranking'  turned the cranking injection sequence from sequential into batch and the divider was used to then divide the calculated PW  by the number entered in 'cranking fuel divider'  1 for sequential, 2 for semi, and 4 for batch.

Its all a mystery to me ??? why do we have settings that give the same end result. Its a lot of un necessary configuration for no gain.

Im not being awkward, i just cannot see logic lol.
Because firing more OFTEN will guarantee that fuel will be available in the intake tract when the intake valve opens when cranking at 200 rpm. It doesn't make much of a difference anyway, alternate (sequential) works just fine for me.

I could be all wrong on the "banks" statement and what the divider actually does, but it makes sense.

Offline MWfire

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Re: VemsTune and 1.1.6x release
« Reply #199 on: January 22, 2010, 03:04:50 pm »
For my car fire all banks while cranking help alto to start faster.

Offline Sprocket

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Re: VemsTune and 1.1.6x release
« Reply #200 on: January 22, 2010, 03:16:49 pm »
Ok, fair enough but I then fail to see the reason for 'cranking fuel divider' whether it is 1, 2 or 4 times per cycle resulting in only the exact same amount of fuel being elivered during cranking.

I thought 'fire all banks while cranking'  turned the cranking injection sequence from sequential into batch and the divider was used to then divide the calculated PW  by the number entered in 'cranking fuel divider'  1 for sequential, 2 for semi, and 4 for batch.

Its all a mystery to me ??? why do we have settings that give the same end result. Its a lot of un necessary configuration for no gain.

Im not being awkward, i just cannot see logic lol.
Because firing more OFTEN will guarantee that fuel will be available in the intake tract when the intake valve opens when cranking at 200 rpm. It doesn't make much of a difference anyway, alternate (sequential) works just fine for me.

I could be all wrong on the "banks" statement and what the divider actually does, but it makes sense.

I understand this which is why I am amazed that Tony C manages to start his engine on prime pulse alone!!!

Offline mattias

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Re: VemsTune and 1.1.6x release
« Reply #201 on: January 22, 2010, 09:13:30 pm »
I understand this which is why I am amazed that Tony C manages to start his engine on prime pulse alone!!!
My snow mobile does too :)
.. and I bet my car could be setup to do that as well (maybe not really cold).

Offline Arthur

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Re: VemsTune and 1.1.6x release
« Reply #202 on: January 23, 2010, 12:50:45 am »
Ctrl+A, Q/W/E/R


Oké thanx. That works. Where can you find these simple things. Not in f1

And the rest. Are these question suppit or hard to anwser?

How can I have a collision with vvti channel, while I cant find vvti anywhere in VT?

What's wrong with these's cooling settings. (apart from not beeing tuned jet)

-38       200
-26       160
-14       140
- 2        125
10         115
22         110
34         108
46         104
58         102
70         100


The Tooth wheel width should be 6 deg on 60 - 2 .....duh! Why does the warning stay?

My first tooth is physicly 120 btdc, so I set my trigger to 10 ad next to 30. Vems can't cope with 120 btdc!

What should I set in reverence table? "10 and 40" or "10 and 30"?

Shiftcut: I checked all is diabled but it keeps telling me to check shiftcut input.

Boost_egtdec     No matter what, it go's back to -85 and 616 I don't understand how this works at all.

And what does map corr do. Why do you have to correct map/rmp when you have ve-map ???

Should I just ignore these warnings???
« Last Edit: January 23, 2010, 12:58:56 am by Arthur »

Offline gunni

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Re: VemsTune and 1.1.6x release
« Reply #203 on: January 23, 2010, 05:17:12 am »
Map corr is only used if you set it up so.

Those coolant settings don´t represent the required amount of fuel needed.
Somebody posted a picture of this just a few days ago.

you may have missed the "Show / hide help F2" in the 3d tuning maps. That will show the possible shortcuts within that window


Offline mattias

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Re: VemsTune and 1.1.6x release
« Reply #204 on: January 23, 2010, 08:47:18 am »
Those coolant settings don´t represent the required amount of fuel needed.
Somebody posted a picture of this just a few days ago
They're pretty good for a warmup/coolant enrichment table, could use just a bit more below freezing but depends on the engine.
I don't think he was referring to the cranking table, which the picture posted earlier showed.

Offline Arthur

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Re: VemsTune and 1.1.6x release
« Reply #205 on: January 23, 2010, 03:40:57 pm »
Yes I know. the enrichment should probebly be raised. I have 0.9 pw batched (all bank) while cranking at 5 deg C. the pw at a running warm engine is about 1.9 full seq.

Somehow my cranking fuel divirder goes back to 51 in all the time in VT.

I'm afraid to start while there are still sanity issues.

Are the bins oké? I've seen warning that said: monotoriuos asending order. That's yust about the level where my englisch gets me.

Does that meen: start low and use the same steps to raise? Should it always stop at 70?

I found the problem with my F2 function. My laptop needs shift for F1 but doesn,t need shift for F2. 

:-X :-X
« Last Edit: January 23, 2010, 03:51:49 pm by Arthur »

Offline dnb

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Re: VemsTune and 1.1.6x release
« Reply #206 on: January 23, 2010, 05:54:43 pm »
I've told them about "monotonous" before.  That roughly means "boring".

The word they mean is "monatonic", and it is nearly as you describe - a continuously increasing (or decreasing) function.  The step size doesn't matter, but the next step should always be bigger than the last.

Offline dnb

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Re: VemsTune and 1.1.6x release
« Reply #207 on: January 23, 2010, 05:57:33 pm »
Warup_clt(9)                  Please check warmup
Tooth_wheel_twidth[0]    Please check tooth_wheel_twidth[0,1]
Shiftcut and launch         Please check shiftcut input
boost_egtdec                 Please check boost target reductio above EGT and fuel added above EGT Limit

I think you'll find these are all just warnings.  They are simply there to make you double check for common config problems.  They can be annoying, but if you have checked them and are happy with them then they can be ignored.  Annoyingly they keep being reported.

Offline Sprocket

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Re: VemsTune and 1.1.6x release
« Reply #208 on: January 23, 2010, 07:17:29 pm »
I found some times with Megatune that even though some config values were disabled and greyed out, if the did not have sane values certain things still had an effect. I can only expect the same to be true with Vemstune.

I always try and put sane values into everything even though they will never ever be used.

Offline mattias

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Re: VemsTune and 1.1.6x release
« Reply #209 on: January 24, 2010, 07:02:44 am »
Sprocket: "hidden" settings that belong to disabled functions are hopefully eliminated completely by the time VemsTune is official, I don't know of any apparent ones at this time.

Arthur: I would seriously check if your serial port is working like it should. Nothing but yourself should be able to set/change the "cranking fuel divider".