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Discussion Starter · #1 ·
Big Tuna Motorsports went [email protected] with a 1.87 60' today at MIR. Making around 150whp. Slicks are too tall so once the shorter slicks are on it should go 12.5's.

D16Y8 transmission built by Whoopee Doo Racing.

MFactory 1.565 3rd gear, OEM 1.172 3rd gear used as 4th gear. 5th gear delete. OEM welded diff as the OBX that was going to be used had .010" runout straight out of the box it was shipped in. Carbon coated synchros, 2-3-4 scuffed gear cones, CSB race staked. Shifts smooth as butter at 8,600 RPM. 2step launch at 9k.






 

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Discussion Starter · #7 ·
ZacCarter said:
Nice man, crx or hatch?
CRX

Depending on how his last few events go this season, I might do another 4spd for him with different gearing. Need to see how the shorter slicks affect it first.
 

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umcool911ok said:
12's with 150whp? LOL

Damn
x2 that is hella tight,dud 450whp run 12


just a tranny work and put that car in a low 13 and high 12 wowowowowowow :shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock:
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Discussion Starter · #13 ·
Vid is with his old crap ebay header.
 

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Discussion Starter · #15 ·
Compression and a basemap. That was first startup before he loaded it up and took it to the dyno.
 

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Discussion Starter · #17 ·
Once I have the new MFactory D LSD's made, using one of them it would be $1,720.
 
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