[cody]

Originally Posted by Dean

You can touch pretty much anything you bloody want in SP now except the turbo and wastegate. Reread 15.10.c

I reread it again but I still don't know.

C. Induction allowances are as follows:
1. Carburetors, fuel injection, and intake manifolds are unrestricted.
Alternate throttle linkage and connections to facilitate
installation of allowed induction systems are permitted,
but may serve no other purpose. If an induction system item
is allowed to be removed and its original mounting bracket
can be removed by simply unbolting it, the bracket may be removed
as well.
2. Except for standard parts as defined in these rules, the external
use while on course of liquids, ice, dry ice, refrigeration
systems, vaporized compressed gases, etc. to reduce the
temperature of the intake air charge is prohibited. Wrapping
of intakes with liquid-soaked fabric is not permitted.
3. As utilized only on engines originally equipped with forced
induction, induction charge heat exchangers (known as “intercoolers”
or “charge air coolers (CACs)”) are unrestricted in
size and configuration. Air-to-air CACs and radiators for airto-
liquid CACs must be cooled only by the atmosphere, except
for standard parts. Body panels, fascias, or structural members
may not be cut or altered to facilitate CAC installation.
4. Turbochargers and/or superchargers (“forced induction”) may
not be added, changed, or modified. On vehicles originally
equipped with forced induction:
a) No hardware changes or alterations to turbocharger(s) or
supercharger(s), in size or number, are permitted. Turbochargers
or superchargers may be updated/backdated only
in conjunction with the accompanying complete engine
unit.
b) No changes are allowed to waste gate(s) size, number, or
location. No changes are allowed to variable-geometryturbine
(VGT) hardware.
c) No changes are allowed to supercharger drive system
pulleys. Belt tensioners may be added/changed to reduce
belt slip.
d) No changes are permitted to blow-off/pop-off valves.
e) Compressor bypass valves (CBVs) are considered part of
the air intake system, and may be replaced or updated/
backdated independently of the other components of a
forced induction system.
f) Boost regulation systems, either electronic or mechanical,
and electronic fuel cuts referencing boost pressure may be
altered or modified except as prohibited herein. Boost
pressure changes resulting from authorized changes are
permitted.