joscorstjens
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| posted on 18/4/10 at 09:52 PM |
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replacement for VB921?
Hi, I -somehow- managed to blow (partially) one of the two VB921's on my MSQ1 wasted spark setup. Moreover, I think they can not deliver enough
current to reach saturation on the coils. Where do I find a replacement? I have difficulties to find BIP373 or ISL9V5036 or VB921. So:
1. what would be a good replacement?
2. where can I buy it?
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Doofus
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| posted on 18/4/10 at 10:25 PM |
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If you need some VB921s I have some spare, but I've heard the other two are better.
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joscorstjens
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| posted on 22/4/10 at 11:31 PM |
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thx, I think I found one in the mean time
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flak monkey
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| posted on 23/4/10 at 07:00 AM |
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The only reason VB921s blow is if your dwell is too long, so reduce that to around 3.2ms before you fit new.
I would source BIP drivers as they are more resistant to longer dwells and cut out if overheating rather than just frying.
They are available from the US fairly cheaply.
David
Sera
http://www.motosera.com
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Jenko
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| posted on 23/4/10 at 07:21 AM |
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Just use an EDIS which is very much designed for the job and very reliable.
MY BLOG - http://westfieldv8.blogspot.co.uk/
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