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[Mdulin]

f/r sway bars
coilovers
camber bolts
OFT e85 stage 2 tune
Borla catted header
hatless frontpipe/invidia n1
18x9.5 wheels w 255 michelin ps5s
IRP short shifter

[cjd]

Originally Posted by Mdulin

f/r sway bars
coilovers
camber bolts
OFT e85 stage 2 tune
Borla catted header
hatless frontpipe/invidia n1
18x9.5 wheels w 255 michelin ps5s
IRP short shifter

Uncompetitive in SM but that's where you'll go.

STX if you go back to 93 octane, 9" wide wheels, and possibly a different shifter if someone is going by the book. You randomly still have a cat (required) which is unusual

[BigTuna]

Originally Posted by cjd

Uncompetitive in SM but that's where you'll go.

STX if you go back to 93 octane, 9" wide wheels, and possibly a different shifter if someone is going by the book. You randomly still have a cat (required) which is unusual

What mods would put him in SM rather than CSP?

EDIT: Maybe the shifter? 15.10-DD-8

[14stu]

Originally Posted by Mdulin

f/r sway bars
coilovers
camber bolts
OFT e85 stage 2 tune
Borla catted header
hatless frontpipe/invidia n1
18x9.5 wheels w 255 michelin ps5s
IRP short shifter

If you run 93/91 instead of e85 and went down to 9" wide wheels you could run STX, you've put yourself into CSP or SM with the wheels wider than 9" and the e85 (either one bumps you out of STX).

I'd recommend running pump gas and getting some 17x9 wheels with some RE71r's (255/40-17) and run in STX unless you don't care, then run in CSP, SM, or XP.

[cjd]

Originally Posted by BigTuna

What mods would put him in SM rather than CSP?

e85 and IRP shifter (it removes a transmission mount). At least, I am not finding anything that states a change in fuel rules from touring.

[BigTuna]

Originally Posted by cjd

e85 and IRP shifter (it removes a transmission mount). At least, I am not finding anything that states a change in fuel rules from touring.

E85 is legal in CSP. It's in the Fuel section, not the allowed modifications section. 3.6.B

In addition to fuels which are allowed by Section 3.6.A, Street Prepared, Street Modified, Prepared, and Modified category vehicles may use diesel fuel, any grade of gasoline, or Federally-approved E85.

[Zycle]

Quick question. Have Scion F-RS. Can I replace my struts with OEM BR-Z struts and remain in stock DS? Almost the same minus spring rates, but "technically" from a different car so aren't "technically" OEM parts, but they fit like OEM parts (because they really are...).


In this general idea, can any BR-Z parts be put on a FR-S and remain in stock?

[BigTuna]

Originally Posted by Zycle

Quick question. Have Scion F-RS. Can I replace my struts with OEM BR-Z struts and remain in stock DS? Almost the same minus spring rates, but "technically" from a different car so aren't "technically" OEM parts, but they fit like OEM parts (because they really are...).


In this general idea, can any BR-Z parts be put on a FR-S and remain in stock?

Yes, shocks are able to be swapped out in stock class. You could upgrade to Koni's if you really wanted to.

Refer to rule 13.5.A

And no, for instance, if you put an OEM BRZ spoiler on an FRS, its technically illegal. I highly doubt anyone would question it though.

[cjd]

Originally Posted by BigTuna

E85 is legal in CSP. It's in the Fuel section, not the allowed modifications section. 3.6.B

Blah. That's why I missed it. Thanks!

[BR-ZED]

How would the IRP shifter not be STX legal?

The rules state that any mechanical linkage can be used:
G. Any mechanical shift linkage may be used.

I also don't think it changes how the transmission is mounted;
Any engine or transmission mount is allowed provided it attaches only to
the original mounting points, does not relocate the engine/transmission
(other than incidental to changes in compliance material), and weighs no
less than the OE mount. All components between the engine/transmission
and the mounting structure are considered to be part of the mount assem-
bly.

Is it maybe because of the very slight weight reduction? Though its debatable that the shifter be considered part of the mounting assembly.

[cjd]

Originally Posted by BR-ZED

How would the IRP shifter not be STX legal?

The rules state that any mechanical linkage can be used:
G. Any mechanical shift linkage may be used.

I also don't think it changes how the transmission is mounted;
Any engine or transmission mount is allowed provided it attaches only to
the original mounting points, does not relocate the engine/transmission
(other than incidental to changes in compliance material), and weighs no
less than the OE mount. All components between the engine/transmission
and the mounting structure are considered to be part of the mount assem-
bly.

Is it maybe because of the very slight weight reduction? Though its debatable that the shifter be considered part of the mounting assembly.

It removes a transmission mount.

[BR-ZED]

Originally Posted by cjd

It removes a transmission mount.

Is the shifter carrier here technically a transmission mount though? It seems as though it is just a component used to connect the shifter to the transmission. I can't see how it's bolted into the car but was under the impression it attached the shifter to the transmission, not the transmission to the car.

[cjd]

Originally Posted by BR-ZED

Is the shifter carrier here technically a transmission mount though? It seems as though it is just a component used to connect the shifter to the transmission. I can't see how it's bolted into the car but was under the impression it attached the shifter to the transmission, not the transmission to the car.

I believe the argument is that it limits rotation. There is no functional reason for it to attach to the body at all otherwise, and the IRP is exhibit A proving it isn't needed...

[BR-ZED]

Originally Posted by cjd

I believe the argument is that it limits rotation. There is no functional reason for it to attach to the body at all otherwise, and the IRP is exhibit A proving it isn't needed...

Yeah but I'm still trying to see if that piece (shift lever retainer) in the diagram below even attaches to the body.

It seems to only attach to the transmission. Am I missing something?