Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
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-   -   GTM Performance Engineering: GTM TD05 16G Test Results 91 Octane 7AT (http://www.the370z.com/forced-induction/56844-gtm-performance-engineering-gtm-td05-16g-test-results-91-octane-7at.html)

KaienZ34 06-26-2012 10:05 PM

I'm sure some one can jump in with more technical info.

ANMVQ 06-27-2012 11:18 AM

We learing about the tranny gears makes my choice easier, Was going VB and or TQ converter now just same the 5k and get a built tranny . :)

Mike@GTM 06-27-2012 11:42 AM

If you want a little more info about FI and automatic transmissions, here is an article I wrote on the subject: http://www.gtmotorsports.com/Technic...ansmission.pdf

That should help you understand what is going on a little better.

falconfixer 06-27-2012 11:52 AM

Good article Mike :tup:

Have to dock you points for not presenting in the new APA 6 format.

KaienZ34 06-27-2012 11:56 AM

Nice read mike....So what would be needed for the 7AT to handle the power that this kit (the one in this thread) is making? Just a tune and cooler? VB upgrade plus tune and cooler, or a fully built trans?

Mike@GTM 06-27-2012 12:41 PM

Quote:

Originally Posted by KaienZ34 (Post 1794342)
Nice read mike....So what would be needed for the 7AT to handle the power that this kit (the one in this thread) is making? Just a tune and cooler? VB upgrade plus tune and cooler, or a fully built trans?

As Sam said earlier, a tune and a cooler does work well enough. The Valve Body Upgrade and a cooler works better. A built transmission is not necessary at these levels so long as you recognize the limitations of the higher gears. While the Valve Body Upgrade will certainly help in the higher gears, it is just a good idea to play it safe on the stock clutch packs.

FPenvy 06-27-2012 12:53 PM

Quote:

Originally Posted by Mike@GTM (Post 1794425)
As Sam said earlier, a tune and a cooler does work well enough. The Valve Body Upgrade and a cooler works better. A built transmission is not necessary at these levels so long as you recognize the limitations of the higher gears. While the Valve Body Upgrade will certainly help in the higher gears, it is just a good idea to play it safe on the stock clutch packs.

what kinda of price range are we looking at for these upgrades? i really want to go FI with the function of my higher gears and not lose my abiltity to hit 160MPH lol (more with speed limiter off)

i love the fact that we can gain so much with a nice twin turbo kit but i dont want it to cost me the functions of my car is all. nothing against anyone just a personal choice i'm gonna have to make i guess lol

KaienZ34 06-27-2012 01:18 PM

Quote:

Originally Posted by Mike@GTM (Post 1794425)
As Sam said earlier, a tune and a cooler does work well enough. The Valve Body Upgrade and a cooler works better. A built transmission is not necessary at these levels so long as you recognize the limitations of the higher gears. While the Valve Body Upgrade will certainly help in the higher gears, it is just a good idea to play it safe on the stock clutch packs.


Thanks for the info my good man, you have been repped.


Quote:

Originally Posted by FPenvy (Post 1794458)
what kinda of price range are we looking at for these upgrades? i really want to go FI with the function of my higher gears and not lose my abiltity to hit 160MPH lol (more with speed limiter off)

i love the fact that we can gain so much with a nice twin turbo kit but i dont want it to cost me the functions of my car is all. nothing against anyone just a personal choice i'm gonna have to make i guess lol

:iagree: with all of this


I'd be happy with the power that this kit made and a nice safe 7AT.

Mike@GTM 06-27-2012 01:45 PM

Quote:

Originally Posted by FPenvy (Post 1794458)
what kinda of price range are we looking at for these upgrades? i really want to go FI with the function of my higher gears and not lose my abiltity to hit 160MPH lol (more with speed limiter off)

i love the fact that we can gain so much with a nice twin turbo kit but i dont want it to cost me the functions of my car is all. nothing against anyone just a personal choice i'm gonna have to make i guess lol

Well, here is a link to our Stage 4 Transmission Build: GTM Motorsports*::*AUTOMATIC TRANSMISSION*::*GTM Stage 4 Transmission Upgrade That is a fully built transmission, valve body upgrade, and torque converter.

Also, if you have access to a transmission shop that you feel is competent enough to take your transmission apart and put it back together properly, we have the parts to build the transmission on our website as well. We should have master overhaul kits on there soon as well. So, basically, if you want all the parts to build a Stage 4 transmission, but don't want us to actually build it for you, then that option will be available.

FPenvy 06-27-2012 01:54 PM

Quote:

Originally Posted by Mike@GTM (Post 1794570)
Well, here is a link to our Stage 4 Transmission Build: GTM Motorsports*::*AUTOMATIC TRANSMISSION*::*GTM Stage 4 Transmission Upgrade That is a fully built transmission, valve body upgrade, and torque converter.

Also, if you have access to a transmission shop that you feel is competent enough to take your transmission apart and put it back together properly, we have the parts to build the transmission on our website as well. We should have master overhaul kits on there soon as well. So, basically, if you want all the parts to build a Stage 4 transmission, but don't want us to actually build it for you, then that option will be available.

i saw that already on the site but wasn't sure if that was def one for the 370. sometimes when i search for 370 parts some 350 ones get put in there too. just wanted to make sure it was the correct one i was looking at. is it really that expensive though? i mean $6K is alot i feel but then again i never rebuilt a tranny. depending on what you guys are charging for the new TT kit and labor for installs i gotta see where that puts me on what i want to spend total. i'd love to give you guys the business since you do make very good quality products.

Nixlimited 06-27-2012 03:10 PM

It would be awesome if this thread got back to the turbo kit results and a new thread regarding tranny issues / builds was started. I want to know more about the new TT!

FPenvy 06-27-2012 03:12 PM

Quote:

Originally Posted by Nixlimited (Post 1794672)
It would be awesome if this thread got back to the turbo kit results and a new thread regarding tranny issues / builds was started. I want to know more about the new TT!

sorry for semi-derailing the topis but the new kit is on a 7AT so i just had some questions regarding the pairing of this TT kit and the 7AT. technically it is somewhat still on topic :tiphat:

also there is a thread that talks specifically about the 3 new turbos GTM is using for the new TT kit they are putting out but i cant remember what the link to it is. just fyi since you seem so interested in only the new TT kit.

edit: here is that thread GTM turbo update

rxdo 06-27-2012 04:11 PM

Dear GTM, Please, pretty please, fab up some exhaust manifolds that would allow the 16g turbo kit from needing drilling/tapping, I want this kit so bad but am not willing to alter/drill into the block.

Mike@GTM 06-27-2012 04:56 PM

Quote:

Originally Posted by rxdo (Post 1794748)
Dear GTM, Please, pretty please, fab up some exhaust manifolds that would allow the 16g turbo kit from needing drilling/tapping, I want this kit so bad but am not willing to alter/drill into the block.

Dear rxdo, it has been 12 days since you asked this question last. In that amount of time, my answer to your question has not changed. ;)

Quote:

Originally Posted by Mike@GTM (Post 1774107)
Actually, that is something that is already in the works. We would like you to know, however, that there is a really big difference between designing/making a new mold for casting and designing/making billet brackets. While billet brackets have a high per unit cost, the upfront capital investment in molds for casting is astronomical in comparison.


XwChriswX 06-27-2012 11:16 PM

Mike, would it be best to have someone send you the car to work on both the TT Install and tranny upgrade at the same time... Or bring it in for the tranny work first, and then at a later date do the TT install? I know logically which one sounds better as a given, but say finances didn't permit both, you would opt for the tranny work prior to the TT work correct?

blackonorange 06-27-2012 11:17 PM

Very interested in price

FPenvy 06-28-2012 12:33 AM

Just got my estimate and now it's time to do some serious thinking and saving lol I really would love to have Gtm install mine but shipping the car to and from Cali seems like a bit much....unless I wait til winter when I park my car lol

Also I'd like to thank mike at Gtm for the offer of a quote and quick response afterwards. Kudos for the great customer service to mike and all the guys at Gtm.

XwChriswX 06-28-2012 12:36 AM

Quote:

Originally Posted by FPenvy (Post 1795428)
Just got my estimate and now it's time to do some serious thinking and saving lol I really would love to have Gtm install mine but shipping the car to and from Cali seems like a bit much....unless I wait til winter when I park my car lol

That would prolly be the best idea, when you'll most likely not even be driving it anyways.

FPenvy 06-28-2012 12:37 AM

Quote:

Originally Posted by XwChriswX (Post 1795429)
That would prolly be the best idea, when you'll most likely not even be driving it anyways.

Agreed but shipping my car from PA to Cali and back is probably like $2500

XwChriswX 06-28-2012 12:43 AM

Quote:

Originally Posted by FPenvy (Post 1795432)
Agreed but shipping my car from PA to Cali and back is probably like $2500

If you're footing the bill for a TT install, and potentially a tranny build too, isn't it worth it for the insurance of knowing it's safe...

Either that or add up what the cost of gas/hotels would be to get there and a plane ticket back x 2 of course... Which is cheaper?

FPenvy 06-28-2012 12:50 AM

Quote:

Originally Posted by XwChriswX (Post 1795438)
If you're footing the bill for a TT install, and potentially a tranny build too, isn't it worth it for the insurance of knowing it's safe...

Either that or add up what the cost of gas/hotels would be to get there and a plane ticket back x 2 of course... Which is cheaper?

Well for sake of argument and last off topic post lol shipping it would be a lot less since gas on avg for premium would be 3.85 a gallon and 3000 miles one way it adds up lol and plane tickets to Cali are like $800

XwChriswX 06-28-2012 12:55 AM

Quote:

Originally Posted by FPenvy (Post 1795441)
Well for sake of argument and last off topic post lol shipping it would be a lot less since gas on avg for premium would be 3.85 a gallon and 3000 miles one way it adds up lol and plane tickets to Cali are like $800

Then just ship the damn thing! FProblem solved. :bowrofl:

rxdo 06-28-2012 05:27 AM

Quote:

Originally Posted by Mike@GTM (Post 1794827)
Dear rxdo, it has been 12 days since you asked this question last. In that amount of time, my answer to your question has not changed. ;)

Sounds good I will ask again in 12 days time. :happydance:

valpozguy 06-28-2012 05:44 AM

Subscribed

sent from my SAMSUNG- SINGLE TURBO SGH-1717

blackonorange 06-28-2012 06:22 AM

Quote:

Originally Posted by FPenvy (Post 1795428)
Just got my estimate and now it's time to do some serious thinking and saving lol I really would love to have Gtm install mine but shipping the car to and from Cali seems like a bit much....unless I wait til winter when I park my car lol

Also I'd like to thank mike at Gtm for the offer of a quote and quick response afterwards. Kudos for the great customer service to mike and all the guys at Gtm.

How much for the Tt kit

FPenvy 06-28-2012 07:38 AM

Quote:

Originally Posted by blackonorange (Post 1795514)
How much for the Tt kit

I'm not sure if I'm allowed to say. Let me ask mike if I'm allowed to share that info yet since the kit isn't actually available yet

Mike@GTM 06-28-2012 01:04 PM

Quote:

Originally Posted by XwChriswX (Post 1795360)
Mike, would it be best to have someone send you the car to work on both the TT Install and tranny upgrade at the same time... Or bring it in for the tranny work first, and then at a later date do the TT install? I know logically which one sounds better as a given, but say finances didn't permit both, you would opt for the tranny work prior to the TT work correct?

In the grand scheme of things, it would be ideal to do both the Twin Turbo and Transmission at the same time. Ultimately, it would save on transport costs and doing it all in one shot would allow you to truly enjoy the car from the get go.

In regards to the second half of your question, I personally feel like it's a really tough pill to swallow doing the transmission first and then doing the TT later as the performance gains from just a transmission build aren't exciting enough on their own to justify the cost. If it were me, I'd do the Twin Turbo, transmission cooler and tune to increase line pressure first, drive the car and enjoy it (within reason) while saving up for the transmission build.

Again, it's not truly necessary to build the transmission to have fun and enjoy the car. For example, I know that the transmission in my Subaru is made of glass and is ultimately a ticking time bomb...that didn't stop me from upgrading my turbo within reason and enjoying my car for what it is. I just take care of it and don't beat it like a drum...simple as that. I still track it occasionally and stomp on the go pedal when I feel like it, I just don't abuse it and change the fluid regularly. One other tidbit is that I do not take it to the drag strip because I know that all it takes is one bad launch to grenade that box into a trail of shrapnel. Know the limitations of your hardware and drive accordingly.

The bottom line is that if you are adamant about doubling your power and want to thrash the ever living $#!^ out of your car, then yeah, you ought to build the transmission to take the abuse.

FPenvy 06-28-2012 01:14 PM

Looks like I need a tranny build then since I love going to the drag strip lol

Mike@GTM 06-28-2012 02:02 PM

Quote:

Originally Posted by FPenvy (Post 1796214)
Looks like I need a tranny build then since I love going to the drag strip lol

Not unless you will be trapping faster than 125mph. That's where 4th finishes up on the 7AT. A valve body upgrade ought to be sufficient for a topping out 4th gear.

FPenvy 06-28-2012 02:04 PM

Quote:

Originally Posted by Mike@GTM (Post 1796335)
Not unless you will be trapping faster than 125mph. That's where 4th finishes up on the 7AT. A valve body upgrade ought to be sufficient for a topping out 4th gear.

hmmm interesting. but still i usually hit higher than that on the highway sometimes and i dont want to blow a transmission in the process. idk if just a VB upgrade would allow me to do that.

W.O.W. 370Z 06-28-2012 02:27 PM

Quote:

Originally Posted by FPenvy (Post 1796342)
hmmm interesting. but still i usually hit higher than that on the highway sometimes and i dont want to blow a transmission in the process. idk if just a VB upgrade would allow me to do that.

http://i0.kym-cdn.com/entries/icons/...-here-meme.png


:roflpuke2:

gbrettin 06-28-2012 02:29 PM

Mike or Sam - Is there a way to tune the car so that when the car is in 6th or 7th the boost will be less? That might save a few transmissions that aren't built.

Nixlimited 06-28-2012 04:36 PM

Quote:

Originally Posted by gbrettin (Post 1796390)
Mike or Sam - Is there a way to tune the car so that when the car is in 6th or 7th the boost will be less? That might save a few transmissions that aren't built.

Know I am not Mike or Sam, but the Z's factory ECU doesn't control boost, that's controlled either by WG spring pressure, manual boost controller, or electronic boost controller. There are some high-end EBCs that can do gear / speed specific boost control, but I am not sure if any of those work on the Z or not.

W.O.W. 370Z 06-28-2012 04:37 PM

Quote:

Originally Posted by Nixlimited (Post 1796696)
Know I am not Mike or Sam, but the Z's factory ECU doesn't control boost, that's controlled either by WG spring pressure, manual boost controller, or electronic boost controller. There are some high-end EBCs that can do gear / speed specific boost control, but I am not sure if any of those work on the Z or not.

You are right.

My HKS EVC can do that.

Mike@GTM 06-28-2012 04:49 PM

Quote:

Originally Posted by gbrettin (Post 1796390)
Mike or Sam - Is there a way to tune the car so that when the car is in 6th or 7th the boost will be less? That might save a few transmissions that aren't built.

The HKS EVC 6 electronic boost controller can be programmed for per gear boost. That said, you can't run boost any lower than wastegate spring pressure. Most of our kits ship with 6psi springs, so that would be as low as you could go.

Also, I don't know if you knew this or not, but your right foot also functions as a manual boost controller that can change boost pressure on the fly. ;)

gbrettin 06-28-2012 05:38 PM

Quote:

Originally Posted by Mike@GTM (Post 1796714)
The HKS EVC 6 electronic boost controller can be programmed for per gear boost. That said, you can't run boost any lower than wastegate spring pressure. Most of our kits ship with 6psi springs, so that would be as low as you could go.

Also, I don't know if you knew this or not, but your right foot also functions as a manual boost controller that can change boost pressure on the fly. ;)

I was born with a tragic birth defect on my right foot: PB distum pedis. also known as... Lead Foot.

:p

XwChriswX 06-28-2012 11:48 PM

Quote:

Originally Posted by Mike@GTM (Post 1796184)
In the grand scheme of things, it would be ideal to do both the Twin Turbo and Transmission at the same time. Ultimately, it would save on transport costs and doing it all in one shot would allow you to truly enjoy the car from the get go.

In regards to the second half of your question, I personally feel like it's a really tough pill to swallow doing the transmission first and then doing the TT later as the performance gains from just a transmission build aren't exciting enough on their own to justify the cost. If it were me, I'd do the Twin Turbo, transmission cooler and tune to increase line pressure first, drive the car and enjoy it (within reason) while saving up for the transmission build.

Again, it's not truly necessary to build the transmission to have fun and enjoy the car. For example, I know that the transmission in my Subaru is made of glass and is ultimately a ticking time bomb...that didn't stop me from upgrading my turbo within reason and enjoying my car for what it is. I just take care of it and don't beat it like a drum...simple as that. I still track it occasionally and stomp on the go pedal when I feel like it, I just don't abuse it and change the fluid regularly. One other tidbit is that I do not take it to the drag strip because I know that all it takes is one bad launch to grenade that box into a trail of shrapnel. Know the limitations of your hardware and drive accordingly.

The bottom line is that if you are adamant about doubling your power and want to thrash the ever living $#!^ out of your car, then yeah, you ought to build the transmission to take the abuse.

Thanks for the response Mike. That does make a lot of sense. :tiphat:

I don't plan on thrashing my car any more than what you're doing in your subie until I have another car as a DD so if something happens to the Z I'm not transportation-less.

Are the upgrades that are done to the 7AT in conjunction with the TT build things that are again improved even more with the AT build, or is this a separate solution to the increased power?

Quote:

Originally Posted by W.O.W. 370Z (Post 1796386)

:inoutroflpuke: :bowrofl: :tup:

ZtoG37 06-29-2012 11:12 AM

whats the release date of your kit??

sloboi 07-07-2012 12:56 AM

Where is the intake situated?

SAM@GTM 07-07-2012 02:20 AM

Quote:

Originally Posted by sloboi (Post 1810232)
Where is the intake situated?



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