There's Level 10 Transmission in NJ that did fully built for me and SharpByCoop. It's way below $7K

Really? Care to enlighten me? Pm please. I'd love to know more about it. But being in Hawaii makes it that much more expensive.

Please for the love of God tell me more. Pm me when you have time seriously please

They have 5 speeds first year of the g37 got the 5at everyone on here that doesn't have an 08g37 can ignore his post.

My mistake.. I didn't realized this is only 7-speed but at least you have another option beside GTM for built transmission. I'm just helping out guys with auto.

but it doesn't help the 5's and 7's are completely different and cannot be interchanged, the internal parts are even different, the valve bodes have completely different solenoids and things nothing crosses over and level 10 has already been contacted about the 7 speed several times and they have said basically maybe some day they will have support for it. the 5 speed is the 4l80e to the 7speeds 6l90 if you want to put it in gm terms. the 5 speed is a half accumulator half pwm based transmission and the 7 speed is all pwm based. Hell the 5 speed still has drum bands in it where as the 7 speed went to perimeter clutch packs.

Basically ther is NO ONE but GTM that builds up 7 speed's

Ok first off it was stupid to do, but my tranny is stock and I'm running the gem supercharger kit and i maxed the speedo... The tranny was fine i checked it😃

based on the transmissions histroy don't make a habit of it, complicated machines are fun like that, it isn't a matter of "the trans is good for 350 so if you are making more than that it will fail" it is more of "the trans is good for 350 so if you are making that or less don't worry about it failing early as much" Once you start going over rated capacity no one can tell you what will happen, unless you go way over like if it is rated for 350 and you are trying to put 700 through it you will slip the clutches and melt it, if you don't something will break.

i guess with a supercharger you should be ok.

to be honest most of the supercharger kits barely make any big power on the Z. i've seen a few put up decent numbers but most are just ehhhh with the SC kits.

i guess 7AT and a SC would survive.

this is why i cant go boost lol TT kit only and 500whp min would be my target

Yes and no, I believe shumby was the first 7AT with the GTM stage 1 SC and he blew his tranny making the same power as me (400HP/340TQ). He would drive his car hard so it took a beating but honestly anything much over bolt ons for the auto is a ticking time bomb.

It could just be that first time you drive hard and shift 4-5 while still on the throttle and it pops, it really boils down to the extra TQ it seems. I have seen the TT guys with auto with more HP do ok but you have to watch out for the TQ and those upper gears.

yea i guess it comes down to every tranny being slightly different. same thing with stock blocks too. some guys have been DD'ing on 12psi of boost for 50k miles with zero issues and other guys have blown blocks NA lol

i get the slight throttle blip when shifting 4-5 in my 7AT.

Yeah, and Shumby had his SC back when I got mine so that was early development of Uprev (2010), so no tranny adjustments were out yet I believe, those changes are fairly recent.

I would love to get a write up from someone who has messed with the Uprev transmission tuning for the 7AT. Not what they changed, but more so what the adjustments could do. Changing line pressure settings = XYZ results sort of right up.

my tranny is tned for harder shifts and whatnot from when i got my tune at AAM last year.

I honestly haven't opened up my UpRev in a while, so things could be further-updated now. But basically this thread gives the basics and some earlier opinion about things for NA cars: http://www.the370z.com/tuning/50754-...uning-7at.html

The only time I spoke with an UpRev technician about this (when I was bumping my line pressure table by ~5-10% to account for NA power mods), their advice was to datalog in Cipher to watch for the transmission slipping while in gear, and up the line pressures just enough to eliminate any logged slip. I imagine the same basic process applies for FI, you'll just need to bump those pressures a good deal more to get rid of the slip than NA guys do.

I don't recall what the exact name of the Cipher parameter to watch was, but IIRC it was basically logging the complete drive ratio from engine to wheels based on RPM and wheel speed sensors.

i havemy own uprev cord and all that good stuff but i havent ever actually datalogged my car. thought about it when at the drag strip for kicks but dont want the laptop bouncing around during the run. need a passenger to keep a grip on it.

You can set a laptop to keep running even with the lid closed, and then try to secure it under the seat when doing a pass.

id have to check. its a 17.3" screen so its quite large lol

local strip allows passengers when running over 11 or 12 seconds cant remember either way i can have a passenger on my runs lol just typically i go alone though so i dont have to worry about someone gettign bored and wanting to leave or something lol

maybe i'll run some data logs next time i go and see what happens.

Are you'll can order the necessary components to beef the transmission internals from GTM or from Exedy then have a transmission shop that is experience conduct the installation.

this was my original thought since my dad's friend was just ridiuclous with transmissions sadly he passed away. i would probably have the same $ in labor to put the parts as i would just getting it from GTM done.

well i take that back. i'd never see it if i ordered it to be done by GTM. they would just keep my money lol

That is the route I may take.

Fast intentions Twin Turbo kit
Garrett GT2860RS X2
FI 3/2.5 down pipes w/ external dump waste gate (super loud when boost comes on! might go for internal ....)
FI 2.5 exhaust w/ carbon fiber mufflers
1000cc injector
Fast 500E return fuel system (E85)
FI 34 row oil cooler kit (setrab)
Whiteline diff bushings
TurboSmart E boost 2 electronic boost controller
Innovate air/fuel gauge

Trans upgrades:
FI trans cooler
FI billet aluminum flex plate
Excedy clutch packs
Stock Torque conv. And VB

Up coming mod: drive shaft shop axles

E85/UPREV/dynojet/tuned by Seb at SpecialtyZ
-Boost control off: 6.6 psi/456.38hp/407.27tq
-Mid boost: 10.02 psi/543.26hp/485.01tq
-high boost: 13.83 psi/620.69hp/557.66tq
http://i1162.photobucket.com/albums/...s73iyta4h.jpeg

I have also been thinking about upgrading to the drive shaft shop axles but there is no one here that have done it and post a review plus the fact that they are expensive. By the way congrats on the build cycy :tiphat:

Will let you know about the axles after the drag strip :happydance:

Please do. Thanks :excited:

i been considering giving mine some boost soon-thinking more down the line of the GTM twin SC kit....i do not want to open exhaust yet & wanted to try and keep quiet.
currently stock 11' touring/AT just over 275WHP & 243TQ....quickest pass in qtr. 13.13@104.89,,,not to shabby for open diff 3.359:1 ratio.

first off, stay away from GTM!

they are out of business and ripped off many people here for thousands and thousands of dollars.

secondly if you go the turbo route you can still have a semi quiet exhaust. turbos act like giant mufflers.

unless you plan on building the trans( and there is no real solution yet) I'd stay away from a Turbo, the WTRQ will kill the trans. A SC is better as it will build WTRQ and throw it all at once at the trans. You wont make as much power but the tranny will hold, or at least longer, I ran my SC kit with 330 WHTQ and the trans was fine, Motor blew tho :( 457 WHP

..........no way of building the trans? you don't get out much do you? lol

level10 makes a built tranny that can handle over 700tq

also Tony at FI now make their own AT upgrades which paired with their TT kit set the 370Z 1/4 mile ET record.

just saying.

I have made some updates to the details, GTM is now listed as out of business & have added Fast Intentions & Level10 with what details I have uncovered. If anyone can get me more details (potentially email) on the Level10 370z transmission built, components used, cost, etc. and send it my way that would be very helpful. Fast Intentions has not officially released theirs yet but have given some details on what they are using but no pricing currently. Will add more details on both as they come in.

What I added:

My correspondence with Level 10 regarding the cost of their transmission upgrade

The BulletProof Transmission upgrade is rated to 750hp. Once upgraded all gears will be capable of performing under boost. The turnaround time is 3-5 business days. The Price for the bulletproof upgrade is $3995. This includes the transmission, ValveBody and Torque converter. Let me know if you have any other questions I’m always glad to help!

The price I quoted you is for the upgrade which uses the transmission currently in the car. The upgrade includes the Level 10 High energy internals, Super pump upgrade, BulletProof ValveBody and BulletProof Torque Converter upgrade. We do carry the Bulletproof Transmission in stock for 6596+$1000 Refundable core + Shipping this unit if for the coupe only we do not have one for the roadster .

My correspondence with Level 10 regarding the cost of their transmission upgrade

The BulletProof Transmission upgrade is rated to 750hp. Once upgraded all gears will be capable of performing under boost. The turnaround time is 3-5 business days. The Price for the bulletproof upgrade is $3995. This includes the transmission, ValveBody and Torque converter. Let me know if you have any other questions I’m always glad to help!

The price I quoted you is for the upgrade which uses the transmission currently in the car. The upgrade includes the Level 10 High energy internals, Super pump upgrade, BulletProof ValveBody and BulletProof Torque Converter upgrade. We do carry the Bulletproof Transmission in stock for 6596+$1000 Refundable core + Shipping this unit if for the coupe only we do not have one for the roadster .

Kojack, could you provide me with the following details, will add you to the FI boost thread along with this one noting you have a built 7AT.

Info to help people:
-Year
-Kit used
-Current HP/Torque
-Current PSI
-Fuel
-Miles since kit installed
-Other upgrades (clutch/flywheel/engine/etc.), also include miles when these upgrades were completed with done after original FI install

Updated the Level10 details to include this info.

I know level 10 makes one, Coop was running one is his( 5spd) tho, Is't there some on with a built trans from them a TT kit and trans has broke twice? I know level 10 is more than working with him on getting retuned and rebuilt but just saying there's issues there.

There's someone from the UK who did a thread on a Level 10 build recently.

http://www.the370z.com/engine-drivet...e-what-do.html

I forgot about his build, need to dig into the details.

Looks like:
-Level10 built transmission
-554HP & 465TQ
-Greddy TT kit
-Fuel stuff

Here's the one I was thinking about on the G Forum.

Help 7A/T Forced Induction Issues/Problems - MyG37

Looks like level10 is slowly fixing it, but it being an X & 7AT that throws a lot into the mix. Hopefully it was just the ECU & TCM not playing nice and with some tuning work it is resolved.

Sorry, I didn't clarify it too well, Cooper and myself have 5-speed auto built from Level 10. And I spoke with Pat regarding about you guys with 7-spd auto and he mention that he does them. Can't recall how much he quoted but knowing it was less then 7grands (compare to GTM's price) when you bring your transmission to them.

Hey like your tip on Level 10 transmissions - thanks- been thinking about going with a STILLEN S/C - is it really that necessary to do the tranny at the same time - Costly about 7k for complete Bullet plus the converter !!