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Old 06-29-2010, 08:38 AM   #4
Don't let the dog drive
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Join Date: Apr 2004
Location: Kinston, NC
Posts: 1,883
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I found out my build number by calling SVT for which I had to provide the VIN number. At that time, they mailed out a certificate indicating build number.

One other thing I did not mention, fixed displacement superchargers such as the Eaton (roots) and the Lysholm twin screw (Whipple, Kenne Bell) will have an operating effeciency based on rotor speed. The faster it spins the more boost you get. However, there is a trade off in terms of discharge temperature as well as other factors that will effect boost at higher RPM. Too fast, the supercharger will overheat with may result in bearing failures, or worse such as rotor failure. I believe that FORD incorporated a boost purge or by-pass on overcharge at high RPMs. There is a way to prevent that by altering the vacuum lines on the by-pass valve which is one thing I have not done. I believe it is called "the boost by-pass mod".
2004 SVT Cobra, Silver, February 2004
SVT Build # 2485 out of 3768
SLP Loudmouth Cat-back
UPR double lock firewall adjuster
UPR GMS extreme double hook quadrant
Wheels: Ford SVT 10th anniv. wheels (track duty)
SVE 10th anniv. style 17x9F, 10x10.5R
BBS RK Plasma 18x8.5F, 18x10R (retired)

(retired) 2001 black SVT Cobra, October 2001
missed but not forgotten
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