BMW V8 trigger doubt

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pepifebles
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BMW V8 trigger doubt

Post by pepifebles » Sun Dec 16, 2018 6:24 pm

Hi guys, I have BMW v8 m60 and although runs good and high rpm sound its great, but think that dont work correctly all cylinders. Injectors and coils are wiring 1+6, 5+3,4+7, 2-8, firing order is 1-5-4-8-6-3-7-2. With this, theoretically ignition and injection events should be 1342, 1342 but don´t start. Currently my events are 1234, 1234. Wiring pairing has been checked, test output done and dont get start with correct order. Any idea?

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Karel
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Re: BMW V8 trigger doubt

Post by Karel » Sun Dec 23, 2018 6:16 pm

order 1342 1342
first tooth 6
angle 51

1-4 passenger side
5-8 driver side


so i think you are only cca 18degree wrong

pepifebles
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Re: BMW V8 trigger doubt

Post by pepifebles » Sun Dec 23, 2018 7:41 pm

1342 firing and injection??
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pepifebles
Posts: 298
Joined: Tue Jan 27, 2015 10:53 pm
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Re: BMW V8 trigger doubt

Post by pepifebles » Mon Dec 24, 2018 12:02 pm

Karel wrote:
Sun Dec 23, 2018 6:16 pm
order 1342 1342
first tooth 6
angle 51

1-4 passenger side
5-8 driver side


so i think you are only cca 18degree wrong
Very difficult start it with this setting, and when get it, its a disaster, intake explosions, only a few cylinders works ....
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Karel
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Re: BMW V8 trigger doubt

Post by Karel » Thu Dec 27, 2018 10:22 pm

You must have some mistake, i have done many M60,M62 engine, they work like that.... Maybe you dont have correct trigger angle or you have some noise on crank signal.

Karel
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Re: BMW V8 trigger doubt

Post by Karel » Thu Dec 27, 2018 10:24 pm

Backfire means, you are firing cilinder when intake valves open, so you need to fire way more later

pepifebles
Posts: 298
Joined: Tue Jan 27, 2015 10:53 pm
Location: Tenerife, Canary Island

Re: BMW V8 trigger doubt

Post by pepifebles » Thu Dec 27, 2018 11:09 pm

Exactly. I’ll try change trigger angle in interval of 5 in 5 angles.

Have you used this trigger settings In all yours m60?
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pepifebles
Posts: 298
Joined: Tue Jan 27, 2015 10:53 pm
Location: Tenerife, Canary Island

Re: BMW V8 trigger doubt

Post by pepifebles » Sun Jan 13, 2019 4:53 pm

Still with this problem. From 3000rpm and dont get exceed 6300/6400 rpm. Any advise?
Its correct wiring 1+6 5+3 4+7 and 2+8?
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