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Discussion Starter #1 (Edited)
Andreas Miko:
How to Put a QR B15 6 Speed Trans on Sr20de

Yahnoza:
How To: P11 5 Speed Conversion

Chrisinky:
How To : 6 Speed in a P11

Auto to Manual:

Easy to find
Spec V trans 02-06
Spec V center console or any other manual b15 or mod current one
Spec V axles w/o ABS
Spec V throw out bearing
Spec V shifter and shifter cable
Spec V Hydralic line
Spec V clutch pedal 50 bucks for all via pick n pull
Spec V tranny mount driverside
Spec V rear tranny mount
Spec V rear Tranny mount bracket
Spec V Axle shaft seals for the tranny
Spec V Clutch Rubber Line
Spec V Clutch Rubber Line
Spec V Hydraulic Clutch *Dampener* (I dont know what this really does, but its a part you need)
300zx/350z clutch and pressure plate

Hard to find
Axle bracket for P12, order from Greg V
Bell housing for P12 20V tranny
S15 JWT Flywheel or 6 speed trans on SR20DE
GTiR Hydraulic Slave Cylinder

Have to Fabricate
trans drivers side mount. its a make-up of the spec-v mount and p12 mount.

here are a couple pictures of the fab'd mount:







cut hole out of bellhousing for s15 flywheel



Just the gears in the P12 20V housing...



drill and tap hole for CPS

For a B15/P11 you have to drill and tap holes for the CPS sensor on the P12 housing...
1/2" hole for the sensor itself



B15/P11 5 speed to 6 speed:

Easy to find:

Spec V tranny 02-06
Spec V axles
Spec V axle seals
Spec V shifter and shifter cable
Spec V rear tranny mount
Spec V rear Tranny mount bracket
300zx/350z clutch and pressure plate

Hard to find
Axle bracket for P12, order from Greg V
Bell housing for P12 20V tranny
S15 JWT Flywheel or 6 speed trans on SR20DE
GTiR Hydraulic Slave Cylinder

Same as list for fabricating above, but less parts needed total.
 

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i wonder if this could be done to the QG as well? the sr20 and the qg18 uses the same 5speed trans i think it might work out then
 

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6 speed on the qg??? i thought u wer goin vq?
 

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the qg and the sr trans. can be switched i think it has diff. gearing when i got my trans replaced they put a qg trans on it made the car shift diff. and alot slower
 

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yea so it looks like theyre keeping it cable... which is nice to know, i thought it had to be hydraulic.
 

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^^^thats what the threads about lol. sr20 with a spec 6spd
 

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my question to this thread is do you need all of these things if one already has a spec v with this tranny? Im simply curious since I am curious about doing an sr20 silvertop swap and keeping my beloved 6 speed
 

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would this help?
n Production: JWT 6-Speed Trans Adaptor for 300ZX (Z32)
Date:4/19/2011

The 350Z & Infiniti G came with a very strong 6-Speed transmission that is starting to show up more and more at the auto recyclers, making for a reasonably priced option for other high-powered Nissans. Unfortunately, it sports an integrated bell housing, making this conversion difficult at best. By scrounging an automatic tranny bell housing from an automatic that was fitted to the same motor you are adapting to, this adaptor ties everything together. Either the 07+ 350Z Concentric Release Bearing or an aftermarket C.R.C. (Tilton) can be used. The no longer used VQ35 bell housing is cut away and the new adaptor replaces the original front sealing cover. This adaptor can mount a 6-Speed to a VG30DE(TT), SR20DE, KA24DE, or VH45DE engine. Adaptors for the VK56 and others will be available soon after the release of this adaptor. Contact Ben for release date or other information. 619 442-0680
 

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All you need is the carrier bracket from mazworx and a custom rear mount, or buy it from mazworx. You'll also need the 6 speed flywheel.
 
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