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Old 03-17-2013, 02:35 PM   #39
Scooby Specialist
Member#: 193757
Join Date: Nov 2008
Chapter/Region: MWSOC
Location: Cedar, MI HP Techs MPS-SSLR2.5
2006 XTI Limited
OBP, Junior tuned 573WHP


Originally Posted by juanmedina View Post

Yeah and exhaust wheel was hitting the housing...

You got the spec-B gears? Because my 2011 sti 4th gear goes to 105 I think..
Good thing you caught that! It outa spool quicker once you get it back rebuilt!

They have the same 4th gear, 5th and 6th are longer in the spec-b. I refer to Fuji's excellent:

I've got the 07 STI box and I run 245/45-18 tires, they're 26.7" tall. I turn 2250 rpm's at 60 in 6th gear. My redline is 8k but I make the best power revving to 7500 and at 7500 my 4th gear is good to 136 mph. At 8k my 4th is good to 143! Do you use the MFactory gear calculator, It's a good tool for gearing, tires and wheel selection. What tires are you running? If you have a 225/40-18 then your 4th is good to 112.

I think I may have found a wheel to use with rear drag radials and leave my front road tires on. MT makes a 265/40-18 that has almost the same diameter as my 245/45-18's. junior told me about the MT's and thought that I could make it work on my XTI with just rear drags!
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