extream ve table

For discussing MicroSquirt (TM) configuration and tuning of fuel parameters (including idle valves, etc.).
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stv firestarter
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extream ve table

Post by stv firestarter »

i have a 1900cc turbo ms v2.2 msns-e mt2.25 beta with nb 02 sensor and 350cc hi impadence injectors and have req fuel set but im having problems im haveing to put hi ve numbers like 70 at idle and incressing to 110 at 2k rpm at 60 kpa and so on still having missfires i have seen other ve tables for boosted engines and mine seems 2 be xstream any thoughts would be most helpfull thanks in advance
mops
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Post by mops »

Hello.


Basicall ve table multiplies 'FuelREQ' value for calculations. If your ve values are too high... go back and incerase your your fuel req, bu say 40%, then scale whole table by the same so the ratio is constant but actual ve values will be 40% smaller... or 50% or whatever you want to set it to

:)
BMW, 1985, E30, 325i, 2-door, 5spd , 127k miles, short shift, MSII, V3/code 2.684/60-2 wheel/MT 2.25, LC-1 wbO2, ignitor module mod driving msd coil/, 3 pin Bosch PWC IAC mod
stv firestarter
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Joined: Sun Mar 19, 2006 12:17 pm
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Post by stv firestarter »

hi thanks for ur reply but do i change the req fuel in constants or tables/ve 1/tools/req fuel and do i change req fuel back

steve
boost junkie
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Post by boost junkie »

Change it in the constants. What is your req_fuel set to? I'm using 780cc injectors on a 2000cc engine. REQ_FUEL is 7ms and idle VE is about 14%. The actual idle pulse width is about 1.6ms
-shawn
msns-e controled turbo neon
sample msq's!
stv firestarter
MegaSquirt Newbie
Posts: 22
Joined: Sun Mar 19, 2006 12:17 pm
Location: dundee

Post by stv firestarter »

im using 358.9cc hi z on 1900cc turbo engine and req fuel is 8.8
fiat132
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Post by fiat132 »

i am having the same problem too...my car is 2000cc and i am running 8 220cc injectors and my numbers are very close to yours....did the changes fix the problem
stv firestarter
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Posts: 22
Joined: Sun Mar 19, 2006 12:17 pm
Location: dundee

Post by stv firestarter »

i didnt understand it i tryed but when i scaled it went all 2 f**k if u have any joy let me know how u get on and u can tell me thanks


steve
fiat132
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Location: EGYPT

Post by fiat132 »

but did the number decrease or did they increase?
i will give it a try today and keep u informed
stv firestarter
MegaSquirt Newbie
Posts: 22
Joined: Sun Mar 19, 2006 12:17 pm
Location: dundee

Post by stv firestarter »

when i tryed it my ve table was eratic hi and lo points all over
newtyres1
Helpful Squirter
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Joined: Mon Feb 06, 2006 7:32 pm
Location: Brisbane, Australia

Post by newtyres1 »

The VE entries can go up to 255. If you need numbers over 255 then up the req fuel value and rescale the VE table. How to do that is covered in the tuning section of the manual

Ian.
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