RGR-SPEC Cam Questionnaire:
Answer as much as possible!
APPLICATION: (CHECK ONE)
Street PerFormance *
Road Race *
CAM TYPE: (CHECK ONE)
Hyd Roller(Most everyone uses this) * (I guess)
Solid Roller(above ~7000 RPM usually)
(Flat tappet available for 88 and older V6)
Body Style and Year Coupe 2004
Weight Lbs around 3,600 maybe.
Transmission, Auto or Manual Auto
Stall Converter RPM stock for now, but will be upgrading
Rear Gear Ratio 3.27
Number of Cylinders 6
(yeah, I do other cams too!)
Shot Size (in HP)
Direct Port or single jet
N20 jet(s) dia in thousandths inch
Required N20 peak power rpm
Number oF Stages
Nitrous Bias %
(if you want a max "onthe bottle" power cam)
Supercharged or Turbo? Turbo
Max Boost in PSI 10 for now, possibly 11 soon
EXHAUST SYSTEM: This is CRUCIAL!
Headers: if stock, state year, as some SPI swaps use
94-98 headers, or list aftermarket style and size...Custom stainless headers.
pipe size after headers: stock or list size... uh this part could get complicated.
Cat type and number: None.
pipe size after cats: 2.5"
Crossover size and type: (or none) none.
mufflers, brand, size and # of muffs: 2 Jones mufflers. I belive they are 2.25, possibly 2.5 but I'm not sure...
Tailpipes, side exit, or turndowns, and size: 2.5 to 3.25 tips.
Any other exhaust system details that I might consider
in speccing a cam, such as having Warlock mufflers and
you wish to make maximum power with the caps pulled or
have a tunable muffler like SuperTrapps or dumps ahead
of the cats/muffs or any other aspect that could change the
cams exhaust specs? No.
(I know most of the stuff below if stock)
SPI or Single Port: ___spi_______
Ported or stock: __stock________
If you are using a ported or non-stock V6 EFI intake,
list the builder and style, or give specs if self
built and as many details as possible.
Port size in cross sectional area:
(or height x width)
Length if known:
IMRC's or RPM altering aspects such as plenum dividers
or other intake "tricks" in use on you setup, also
list the RPM at which they are activated...
Port Vol/Length cc inches
Valve sizes, intake-
Do you have Flow Bench Figures? (If I did not port the
Test depression ________Inches H20
Intake Lift-CFM Exhaust Lift-CFM
cylinder bore size__stock________ (stock or give overbore)
Int. rocker ratio_______stock_______
Exh rocker ratio____stock_________
Intended Compression Ratio_no idea____:1
Thermostat Temperature___stock but thinking about 180 or 185_________
Cast Iron or Aluminum Heads? _____cast (stock)_______
Rod Length___stock `04_____ (if stock state year also, or give size)
Fuel Octane you will be tuning for:___93__________
Minimum Idle Vacuum desired ("Hg)__huh?________
Required Peak HP RPM ___depends_______
Required Peak TQ RPM __________
(useful for SPI setups)
RGR suggests near-stock torque curve with
stock runner-length upper intakes, if you
have any questions ASK.
Answer as much as possible!