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Forced Induction & 7AT 370z Info

There seems to be a lot of people wanting to discuss the 7AT and forced induction and now there is a dedicated thread for Q&A, info, build links, etc. Factory

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Old 01-30-2013, 08:58 AM   #1 (permalink)
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Default Forced Induction & 7AT 370z Info

There seems to be a lot of people wanting to discuss the 7AT and forced induction and now there is a dedicated thread for Q&A, info, build links, etc.

Factory Transmission:
Nissan/Infiniti JATCO JR710E 7 Speed Automatic transmission: Link

Torque Rating:
RE7R01A: 400Nm (295lb)
RE7R01B: 600Nm (442lb)

Wider gear ratio range, increased gear steps:


Improved fuel efficiency:


Transmission Details:





Ratio Charts:


Quote:
FR 7-speed AT has realized a wider gear ratio range by increasing gear steps, and improved fuel efficiency by reducing friction. Furthermore, it has expanded the slip lock-up area from low driving speed to high accelerator position angle, achieving both high fuel efficiency and running performance.
The latest control technology realizes impressive driving pleasure.
Technician Guide: Link
Technical Service Information: PDF Link
GTM Automatic Transmission: PDF Link

Current vehicles used in:
-Nissan Skyline Coupe (Infiniti G37 coupe)
-Nissan Skyline Crossover (Infiniti EX)
-Nissan Fairlady Z (370z)
-Nissan Fuga (Infiniti M)
-Nissan Skyline Sedan (Infiniti G37 sedan)
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Old 01-30-2013, 08:59 AM   #2 (permalink)
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Nissan:

7 Speed Automatic Transmission (310C0-Z34002) - $7,368.38

Fast Intentions: Know details of upgrade so far - Upgrades include: Excedy Clutch Packs & our Billet Aluminum Flex Plate (SFI approved.)

Level10: Please contact them directly as their website only lists 350z transmission, but have completed multiple built 370z transmissions.

Level10 Built from Scratch - Details

Build details: The BulletProof Transmission upgrade is rated to 750hp. Once upgraded all gears will be capable of performing under boost, the upgrade includes the Level 10 High energy internals, Super pump upgrade, BulletProof ValveBody and BulletProof Torque Converter upgrade. Price: $6,596 + $1,000 Refundable Core Charge

Level10 Send Yours In - Details

Build details: The BulletProof Transmission upgrade is rated to 750hp. Once upgraded all gears will be capable of performing under boost, the upgrade includes the Level 10 High energy internals, Super pump upgrade, BulletProof ValveBody and BulletProof Torque Converter upgrade. The turnaround time is 3-5 business days. Price: $3,995




Known finished builds Turbo (TT & T):

Tao168:
2009 370z 7AT GTM Stage 1 TT at 6PSI - 310kw (416HP) More Info
Rod Saraiva:
2010 370z 7AT Greddy TT at 7.5PSI - 480HP & TQ More Info
Beastz:
2010 370z 7AT GTM Stage 2 TT 4.2L Stroker at 7.5PSI - 456HP & 398TQ More Info Build Thread
Unknown Owner:
2xxx 370z 7AT GTM Stage 2 TT at 11 PSI - 558HP & 452TQ More Info
G37sHKS:
2009 G37s 7AT GTM Stage 1 TT at 8.8PSI - 448HP & 382TQ More Info
Wattles:
2012 G37 IPL 7AT GTM Stage 1 TT at 13PSI - 556HP & 418TQ More Info
Blue370tt:
2009 370zz 7AT GTM Stage 2 TT at 9.5PSI - 456HP & 380TQ More Info
neveucd:
2009 370z 7AT GTM Stage 2 TT at 9.4PSI - 460HP & 370TQ More Info
Cycy89:
2011 370z 7AT Fast Intentions Stage 4 TT at 13.8PSI - 620HP & 557TQ More Info
Blueranger:
2010 370z Roadster 7AT Fast Intentions TT at 14.9PSI - 663HP & 575TQ More Info
Known finished builds Supercharger (Single & Dual):

OKC370Z:
2009 370z 7AT Stillen SC at 8PSI - 389HP & 290TQ More Info Additional
Zuperman_370:
2009 370z 7AT GTM Stage 2 SC at 8PSI - 460HP & 348TQ More Info
JWillis72:
2009 370z 7AT Stillen SC at 8PSI - 406HP & 302TQ More Info
Jamaica:
2009 370z 7AT GTM Stage 2 SC at 10PSI - 504HP & 362TQ More Info
Perf.Des:
2009 370z 7AT Stillen SC at 9PSI - 419HP & xTQ More Info Journal
future370zzz:
2010 370z 7AT Stillen SC at 9.8PSI - 436HP & 344TQ More Info
Chuy:
2009 370z 7AT Stillen SC at 7.2PSI - 400HP & 320TQ More Info
Ramirez_751:
2010 370z 7AT Stillen SC at 12 PSI - 469HP & 357TQ More Info
__________________________________________________ _____________
OUT OF BUSINESS:

GTM: The GTM transmission upgrade takes advantage of better friction discs from OEM D-0530-31 to GTM D-0880-88 which allows for a better heat capacity resistance (35% over stock). Clutch friction plate surface area by increasing the number of clutches from 32 to 44, increased torque holding capacity by up to 40%, and separator plates specifically made from high-quality steel to ensure durability.

GTM Automatic 7AT Press Release
GTM Performance Engineering: Mild 7 A/T Twin Turbo Build

TRANSMISSION COOLER - $400
GTM Stage 3 Transmission Upgrade - $5,397
GTM Stage 4 Transmission Upgrade - $6,773

Add core charge: $2,000-$2,500
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Old 01-30-2013, 09:03 AM   #3 (permalink)
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7.5PSI too
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Old 01-30-2013, 09:05 AM   #4 (permalink)
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Quote:
Originally Posted by Rod Saraiva View Post
7.5PSI too
Thanks, will add that to this and the finished builds thread.
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Old 01-30-2013, 09:22 AM   #5 (permalink)
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Just as a heads up 310 kW is 416 HP for us dumb Americans
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Old 01-30-2013, 10:26 PM   #6 (permalink)
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I know I had you cross mine off the list but it was 481hp and 427tq on an 7AT at 9.5 psi.
Only saying that to show the tranny CAN handle the hp & tq. I know a lot have said I didn't "drive" the car but those around KC know better.
I put the kit on my car at 2600miles on the car and I'm taking it off right now at 20,800miles.
Before the tranny was tuned (somewhat) I noticed I was slipping between 3rd and 4th. It was actually upreving before shifting into 4th gear. After some tweeking to the shift points I never had a problem again. I also never drove the car hard in the automatic side.

My question to the ones that had their tranny blow up on them..Was it tuned? If so how long did it last after the tune?
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Old 01-30-2013, 10:56 PM   #7 (permalink)
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How did they tune it ? what was different in the tune ?

thanks

Z
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Old 01-31-2013, 05:03 AM   #8 (permalink)
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Hmm. Definitely curious to learn more about the apparent failure rate and failure vs power/torque levels.
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Old 01-31-2013, 04:35 PM   #9 (permalink)
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Today I'm up the presure to 0.8, and at night I'm going to test it
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Old 01-31-2013, 05:25 PM   #10 (permalink)
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Does G37 with 7AT count as well?
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Old 01-31-2013, 05:37 PM   #11 (permalink)
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Subed. I'm f. I. As well with auto. 490whp 400wtq. Uprev tune and uped line pressure. 6000 miles with no problems.

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Old 02-01-2013, 10:30 AM   #12 (permalink)
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[QUOTE=Z eliminator;2139712]How did they tune it ? what was different in the tune ?

I was sent emails (tunes) until I felt it was better. Noticed a lot of the tunes had really hard shift points but as we went along those issues disappeared. No slipping or the engine revving up before it would shift to the next gear. Uprev can and does do these and your tuner should be able to do this as well.
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Old 02-01-2013, 02:31 PM   #13 (permalink)
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Quote:
Originally Posted by valpozguy View Post
Subed. I'm f. I. As well with auto. 490whp 400wtq. Uprev tune and uped line pressure. 6000 miles with no problems.

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Could you post all your details in this thread for me, will add you to the list so others known.
Forced Induction Finished Builds
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Old 02-01-2013, 02:32 PM   #14 (permalink)
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Quote:
Originally Posted by valpozguy View Post
Subed. I'm f. I. As well with auto. 490whp 400wtq. Uprev tune and uped line pressure. 6000 miles with no problems.

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how hard have you pushed yours with the 7AT that its still holding up good with no transmission mods besides line pressure?
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Old 02-01-2013, 05:52 PM   #15 (permalink)
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I hammer on it multiple times every time I drive it. So far so good. Trans cooler is only mod.

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