Quote:
Originally Posted by CobraMarty
Glad to hear- " No issues with anything (runs fine, nothing blew up)"
I tried to be very conservative and safe for this initial mod. I can make it more aggressive but I was afraid it might affect idle lift and idle quality. I also have another mod version I can add to the current mod to also gain a bit more.
Here are my measurements. The 'low' numbers are because the lifters are not pumped up.
The valve lift gain actually starts at about 140* Ecc Cam position, and there is even some mid range valve lift gain from 100-140* EC position
140* Ecc Cam position - stock 7.122mm valve lift - modified 7.366mm valve lift +0.244mm
150* Ecc Cam position - stock 7.569mm valve lift - modified 8.103mm valve lift +0.534mm
160* Ecc Cam position - stock 8.103mm valve lift - modified 8.611mm valve lift +0.508mm
170* Ecc Cam position - stock 8.560mm valve lift - modified 9.093mm valve lift +0.533mm
174* Ecc Cam position - stock 8.712mm valve lift - modified 9.347mm valve lift +0.635mm
Mid Range Ecc Cam position-
100* Ecc Cam position - stock 5.029mm valve lift - modified 5.156mm valve lift +0.127mm
110* Ecc Cam position - stock 5.663mm valve lift - modified 5.817mm valve lift +0.154mm
120* Ecc Cam position - stock 6.172mm valve lift - modified 6.426mm valve lift +0.254mm
130* Ecc Cam position - stock 6.655mm valve lift - modified 6.910mm valve lift +0.255mm
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Thanks that's helpful. Are you measuring the Eccentric shaft position with your own methods, or are you reading the value out of a DME?