Porting The SUpercharger
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but they are being produced in houston. one set has been installed on a CLS and the gains are healthy. boost drop and more power is made via these heads. The tension on the valve springs is also checked and brough back to spec via shims it needed.
I think the head porter will have another set ready if someone is interested.
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Below is the exit of the blower. You want to port the "triangular section" that blows the compressed air into the intercooler.

Hmmmmm


How is your beast running these days bro? You were one of the first guys to get to most mods and power out of the 55's back in the day.
but it will need a tune to switch off the below valve. as it comes without one.
part # start with 155 rather than 113.
Last edited by Ali_E55; Jun 24, 2011 at 06:26 AM.
Look at the Post #11. Check how close the valve head is to the spark plug exit hole & Thread?? This motor has oversized valves. and the travel angle when it opens . And the spark plug angle !! If someone index's the plug , so the J strap is at the intake valve . They will touch and BANG!!! I remember about 4 years age VRP in Cali. Had a spark plug crushing Issue! and even posted some of the damage . Then about 2 years ago the motor had a exhaust valve clearance Issue . from a Valve float at hi rpm . I’m now thinking quite different HUMMM
Cheers _PTEngineering
Last edited by PTE; Jun 24, 2011 at 05:11 PM.










