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03' &
04' Cobra porting bench flow data
Show Polishing Options and Prices
Answer to blower noise question
Answer to reported torque loss issue
R & R Instructions
Stiegemeier Porting has taken modifying Eaton superchargers to
the next level, with nearly 2000 units completed to date. We can provide a
1 to 3 working day turn around. Do not be fooled by a cheap imitations.
We are constantly testing and improving power output.
Shipping procedures:When you send in your supercharger we ask that you
enclose a note with your name, phone number and return address.
Package your supercharger well, especially the snout/pulley area.
Take off all removable parts.
Once the blower, throttle body and plenum are in our
shop we open the box and number ALL components and track these numbers
in our computer files. This ensures that Everyone gets back their
same blower. We will contact you when your shipment arrives and
get any other needed information at that time.
What do we do with the after it arrives:
We disassemble your blower and inspect for common
problems like:
- Rotor/case wear
- Front drive shaft alignment
- Front drive coupler
- Flaking
and tip scoring
- Bypass valve operation
- Broken bolts and stripped threads
The blower case is then ported achieving
the CORRECT balance of low pressure to high pressure. (Low
pressure meaning the inlet side and High pressure meaning the exit
side.) Careful attention is paid to ALL areas to achieve the
highest airflow rates and still retain case rigidity. Designs are
constantly being tested and updated to assure you the largest HP gains
available GUARANTEED. All of our airflow test data was recorded
using an SF 600 Superflow Flow bench. The rotors are profiled,
blueprinted and timed to the case.
After porting all gasket
surfaces are checked for flatness and machined if necessary. The
machined parts are put through a three phase cleaning process. The
last phase consisting of a high pressure 190 degree rotisserie wash.
All superchargers are assembled with factory correct full synthetic
grease and oil. All fasteners are torqued to spec. After
final assembly the superchargers are spun at speed and checked with an
amplified hearing system to ensure you of a perfect assembly. In
addition all superchargers are cataloged, numbered and dated.
Sending the unit back to you:
We take our shipping seriously. We double box with expandable
foam, bubble wrap and packing peanuts! (After all the work we do,
it better not get damaged during the trip back to you!)
Other important information:
Remember we stock all gaskets, pulleys and plugs, etc.
for your supercharger. In addition we offer you free technical
tips, instructions and company stickers. We are available to
answer any of your questions you might have. We have a very
friendly and knowledgeable staff. Our turnaround time is 1-3 days.
Cores are also available.
All returned or exchanged blowers are subject to a
restocking fee.
Our pledge to you:
I GUARANTEE
more HP per dollar than any competitor and stand behind our work 100%.
Quality work does not come cheap nor do quality employees. With
our experience and quality workmanship we get it right the first time!
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