G37/370Z 7AT FAQ Mega-Thread
Registered Member
Joined: Sep 2023
Posts: 24
Likes: 17
From: NJ
@IPT_Trans
If one were to order your Upgraded RE7R01A Performance Automatic Transmission here: https://www.importperformancetrans.c..._detail&p=5437
Would this purchase include the following?
RE7R01A Transmission Rebuild Kit not shown on this page, but similar in make up to the others shown: https://www.importperformancetrans.c...uct_list&c=154
Upgraded valve body: https://www.importperformancetrans.c...uct_list&c=155
Upgraded torque converter: https://www.importperformancetrans.c...uct_list&c=152
Is there a core charge, or is the idea for us to pull our transmission and ship it to you? Do you have shops across different regions of the US that you could recommend for the install?
MotoIQ is one of the better Nissan engine rebuilders here on the west coast, but I'm not sure if you have working with them: https://motoiq.com/project-g37s-tran...pgrade-part-2/
If one were to order your Upgraded RE7R01A Performance Automatic Transmission here: https://www.importperformancetrans.c..._detail&p=5437
Would this purchase include the following?
RE7R01A Transmission Rebuild Kit not shown on this page, but similar in make up to the others shown: https://www.importperformancetrans.c...uct_list&c=154
Upgraded valve body: https://www.importperformancetrans.c...uct_list&c=155
Upgraded torque converter: https://www.importperformancetrans.c...uct_list&c=152
Is there a core charge, or is the idea for us to pull our transmission and ship it to you? Do you have shops across different regions of the US that you could recommend for the install?
MotoIQ is one of the better Nissan engine rebuilders here on the west coast, but I'm not sure if you have working with them: https://motoiq.com/project-g37s-tran...pgrade-part-2/
We do, however, sell high stall/upgraded torque converters and upgraded valve bodies
Transmission builds aren't orderable online, I do that by phone/email only as a fraud protection measure. They include the valve body work but the converters are sold separately.
We build one's existing components, as the interchange is pretty bad (really due to differences in the software that's written onto the TCM),
I don't have installation shops per say around the entire country but I do work with several shops, especially in the southeast (We are basically NYC btw)
I haven't worked with MotoIQ but judging by who I see that they are using for transmission builds, I'm sure that they will probably be contacting me in the future.
Premier Member
Joined: Dec 2014
Posts: 26
Likes: 9
From: Calgary
I have a stillen kit, uprev tune, and hi flow cats on a G37x with 7AT. ~ 400whp depending on the day.
I also have a transmission oil cooler. I talked with Pat at L10 a long time ago about transmission upgrades. His advice was:
1. Wait for the transmission to fail before sending it to him for bulletproofing. Doesn't cost more.
2. With oil cooler, and not increasing boost, transmission may not fail for a long time, or never.
3. I should send him the torque maps for my uprev tune and he could improve the transmission tuning, reducing the lag from hitting the paddle shifters and actual shifting.
That was 40,000 boosted miles ago. With the transmission cooler, I haven't noticed any degrading of performance.
I have drained and filled the transmission twice; which changes ~half the fluid. Once when I put in the cooler, and again a few months later when my WIX plastic inline magnetic filter exploded. Using Amsoil Sig. Series fuel efficient synthetic fluid, not Nismatic S. FYI, the 7AT pressure is much too high for a plastic filter. Use a welded metal or billet filter.
I use the same amsoil fluid in my supercharger. Amsoil says it is compatible with Nis S. After all, Nissan doesn't actually have a refinery making their precious fluids.
Haven't sent Pat my torque tables yet. Did a grounding kit and I am satisfied with the transmission at this point.
As for fluid changes, my personal feeling is they should be done every 30,000 miles or so; and never do a flush. The chances of f'ing something up with a flush are too great.
I also have a transmission oil cooler. I talked with Pat at L10 a long time ago about transmission upgrades. His advice was:
1. Wait for the transmission to fail before sending it to him for bulletproofing. Doesn't cost more.
2. With oil cooler, and not increasing boost, transmission may not fail for a long time, or never.
3. I should send him the torque maps for my uprev tune and he could improve the transmission tuning, reducing the lag from hitting the paddle shifters and actual shifting.
That was 40,000 boosted miles ago. With the transmission cooler, I haven't noticed any degrading of performance.
I have drained and filled the transmission twice; which changes ~half the fluid. Once when I put in the cooler, and again a few months later when my WIX plastic inline magnetic filter exploded. Using Amsoil Sig. Series fuel efficient synthetic fluid, not Nismatic S. FYI, the 7AT pressure is much too high for a plastic filter. Use a welded metal or billet filter.
I use the same amsoil fluid in my supercharger. Amsoil says it is compatible with Nis S. After all, Nissan doesn't actually have a refinery making their precious fluids.
Haven't sent Pat my torque tables yet. Did a grounding kit and I am satisfied with the transmission at this point.
As for fluid changes, my personal feeling is they should be done every 30,000 miles or so; and never do a flush. The chances of f'ing something up with a flush are too great.
Just an update: I now have ~90,000 mi on the car, and am keeping to the fluid change every 30,000 miles strategy. I did most recent fluid change a few months ago, using Valvoline Maxlife Multi Vehicle Full Synthetic Transmission fluid. I also use the Valvoline for the supercharger, power steering and transfer case, as well as oiling the K&N filters. It also goes in the transmission, transfer case, and power steering of my SUV. Why buy several different fluids if you don't have to?
I replaced the filter with this:
So far, so good. If I break the transmission, I'll just replace with a used VR30 unit.
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