GTM Performance Engineering: MHI Twin Turbo Official Release

KaienZ34 · 03-21-2013, 10:26 AM

sub'd again

zguynate · 03-21-2013, 11:13 AM

This pretty amazing. That price is ridiculous. It will be between this and the Boosted Performance kit for me. Good job GTM!

Just like Big T im getting married in Sept. My fiance would kill me if I bought ANYTHING for the car before the wedding, let alone a turbo kit lol. Its looking like it will be the beginning of next year for me.

Chemy · 03-21-2013, 11:50 AM

I got married about 10 months ago. She knew what she was getting into. I told her I was going to buy this kit and she gave me a hard time but finally gave me a "whatever", thats good enough for me

Now the question is, I am mechanicly inclined and have a decent tool set, not a full set of everything by any means. Can I install this myself on jack stands with the engine in? Hrm... Thoughts?

KaienZ34 · 03-21-2013, 12:04 PM

Quote:

Originally Posted by Chemy

I got married about 10 months ago. She knew what she was getting into. I told her I was going to buy this kit and she gave me a hard time but finally gave me a "whatever", thats good enough for me

Now the question is, I am mechanicly inclined and have a decent tool set, not a full set of everything by any means. Can I install this myself on jack stands with the engine in? Hrm... Thoughts?

I hope so because this is also my plan.

Mike@GTM · 03-21-2013, 07:48 PM

Quote:

Originally Posted by 370zrider

Please post some pictures of the exhaust manifolds!. I think they are not shown on the posted pics at the beginning.

Also, do you have pics of the test car with an oil cooler installed? where can it be fitted?

Well, this car currently has some pre-production parts on it. The exhaust manifold it has is version 2 of our manifold that does not require drilling and tapping the cylinder heads. Here is a picture of it below.

The final version is going to be based on the CAD drawing we posted earlier.

As for your request for pictures of an oil cooler installed with this kit, click on the link below to see my previous post with pictures.
GTM Performance Engineering: 370Z MHI Twin Turbo Pre-Release

Quote:

Originally Posted by Dzel

Do you think going with a custom 3" exhaust is a good idea?

A 3" true dual turbo-back exhaust is almost always a nice addition, but not a necessity unless your power goals call for it.

Quote:

Originally Posted by HighLatency

What kind of numbers could you expect with 2.5" test pipes and a 2.5" catback, but on 93 octane? I assume that would only work with the 16g kit?

You can make 500whp with that combination all day long...with either the 16g's or 18g's with 2.5" or 3" exhaust.

Quote:

Originally Posted by N8GTOL

Is matte black intake piping an option on these kits? What would the additional fee be for this option?

It looks like the dyno numbers are for 18gs with external wastegates. What other supporting exhaust mods were on the car? TP's and Catback? Sorry if I missed this in another post.

Are these dyno numbers with the new header design shown in the CAD screen shots in the teaser post?

Any upcoming or current installs with 16gs and internal wastegates? Really interested in seeing a dyno graph for this particular situation (i.e. replicate a CARB legal install...pending CARB approval of course). I suspect the numbers will be slightly lower (which is fine by me) just curious to see the graphs. Please also show AFR and boost vs RMP.

The intercooler plumbing out of the front mount intercoolers shown on the red Z looks different than the IC's shown in the layout photos. Which design is the more recent?

California is quickly becoming TT kit mecca for the 370z...this is awesome but we need more CARB love from our CA turbo vendors. I know you guys (and competitors) are working hard on this and I really hope it comes through for both shops in the next year or so. If it does, then your market will expand faster than you can imagine.

Serious props for making a more affordable TT kit from a reputable Z boost kit company.

Yes, we offer our pipes done in gloss black for $240. We can have other, custom colors done, but they are generally more expensive and not always readily available.

The test car with 18g's has our 3" downpipes with external wastegates and our 3" cat-back exhaust. The dyno results are with our version 2 pre-production manifold that does not require drilling and tapping the cylinder head. We will be doing some additional testing with our upcoming manifold you saw the CAD drawings for once we have the pre-production versions of those in hand.

As for the 16g install, we have a car here courtesy of Nixlimited that is getting that setup. Stay tuned for results on that.

The intercooler setup on the red Z was necessary to clear the hood latch support brackets the Z has. The G37 doesn't have those support brackets and can therefore support the intercooler version you saw in the CAD drawings and layout pictures without modification. That said, we developed new hood latch support braces that gives us an additional 2" of clearance so we can run the same intercoolers on both the G37 and 370Z while supporting the hood latch properly. In addition, the extra clearance allows us to run a wider, taller core on the 370Z than what the red Z currently has. The red Z currently has 10" x 10" x 3" intercooler cores while the production cores with the new support braces are 12" x 12" x 3" cores. Also, the new end-tanks are going to be polished, cast aluminum tanks as opposed to the sheet metal prototype end tanks you see in the pictures of the red Z.

Here is a picture of the support bracket I'm talking about:

As far as CARB approval on this kit goes, we will be going after that as soon as we're finished with CARB approval on the 370Z Supercharger kit.

Quote:

Originally Posted by Chemy

I got married about 10 months ago. She knew what she was getting into. I told her I was going to buy this kit and she gave me a hard time but finally gave me a "whatever", thats good enough for me

Now the question is, I am mechanicly inclined and have a decent tool set, not a full set of everything by any means. Can I install this myself on jack stands with the engine in? Hrm... Thoughts?

Yes, that shouldn't be an issue and people have installed our Garrett based turbo kits in their garages on jack stands.

elperuano · 03-21-2013, 12:16 PM

Lol it can be done with the engine in. Makes for one of the most enjoyable experiences you'll have with the car. Please update us!

I could technically walk to work everyday. 15 mile trip. I could walk it. But why walk when I can drive comfortably.

Chemy · 03-21-2013, 12:24 PM

Quote:

Originally Posted by elperuano

Lol it can be done with the engine in. Makes for one of the most enjoyable experiences you'll have with the car. Please update us!

I could technically walk to work everyday. 15 mile trip. I could walk it. But why walk when I can drive comfortably.

I dont have air tools and more advanced mechanics gear. I have all sockets and wrenches.. all the hand tools you could ask for. I do have an air compressor.. Will I need to buy some tools in addition to what I have? I am ready to tackle this project!

elperuano · 03-21-2013, 12:37 PM

U could do it. Jus have patience, beer and more patience. You'll need to take breaks and know when to walk away n try again later.

Z370Z011 · 03-21-2013, 12:51 PM

good thing my neighbor is a certified mechanic with literally every tool you can think of.. some beers, pizza, and 100$ will make him happy haha

deuce189 · 03-21-2013, 01:29 PM

Whats the window's on all the different Tiers for the group buys?

deuce189 · 03-21-2013, 03:45 PM

^^^ you can finance mattresses. Them Tempurpedic's can get expensive.

chrischhorn · 03-21-2013, 04:34 PM

Dyno sheets from the 18g setup yet? I'd like to see the powercurve.

Mike@GTM · 03-21-2013, 05:02 PM

Quote:

Originally Posted by chrischhorn

Dyno sheets from the 18g setup yet? I'd like to see the powercurve.

Here you go:

Here are the 18g's running 11psi of boost on 91 octane:

Here are the 18g's running 8psi of boost on 91 octane:

As you can see, the 18g's are sized very well and have great area under the curve. This is a very responsive system with great top-end performance.

Footloose301 · 03-21-2013, 05:31 PM

How much power did that top graph get? 11psi on 91octance should be 550whp+?

elperuano · 03-21-2013, 05:33 PM

550? Naaaa

03-21-2013, 10:26 AM	#1 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 179	sub'd again __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

03-21-2013, 11:13 AM	#2 (permalink)
zguynate A True Z Fanatic Join Date: Jan 2012 Location: Strangeland Posts: 1,054 Drives: 09 370z Rep Power: 75	This pretty amazing. That price is ridiculous. It will be between this and the Boosted Performance kit for me. Good job GTM! Just like Big T im getting married in Sept. My fiance would kill me if I bought ANYTHING for the car before the wedding, let alone a turbo kit lol. Its looking like it will be the beginning of next year for me. __________________ 2009 370z touring w/sports package Last edited by zguynate; 03-21-2013 at 11:15 AM.

03-21-2013, 11:50 AM	#3 (permalink)
Chemy Base Member Join Date: Aug 2012 Location: Atlanta, GA Posts: 109 Drives: Nismo 370Z, Pearl Rep Power: 14	I got married about 10 months ago. She knew what she was getting into. I told her I was going to buy this kit and she gave me a hard time but finally gave me a "whatever", thats good enough for me Now the question is, I am mechanicly inclined and have a decent tool set, not a full set of everything by any means. Can I install this myself on jack stands with the engine in? Hrm... Thoughts? Z370Z011 likes this. __________________ 2012 Nismo, PW #512. FI CBE SS w/12" Res, Stillen g3's, UpRev, Kenwood 9990HD, Focal speakers and tweeters, Wicked Cas corner box with JL 10" w6, 35% ceramic tint, full clear bra.

03-21-2013, 03:45 PM	#11 (permalink)
deuce189 Base Member Join Date: May 2011 Location: Charleston, SC Posts: 142 Drives: 09 370Z MB M6 sport Rep Power: 16	^^^ you can finance mattresses. Them Tempurpedic's can get expensive. Rusty and Z370Z011 like this.

03-21-2013, 04:34 PM	#12 (permalink)
chrischhorn A True Z Fanatic Join Date: Jan 2012 Location: Mililani, HI Posts: 1,566 Drives: 2014 Juke Nismo RS Rep Power: 18	Dyno sheets from the 18g setup yet? I'd like to see the powercurve. __________________ R.I.P. 8/01/13 1SlowZ One day I'll have another....

03-21-2013, 12:16 PM	#6 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 30	Lol it can be done with the engine in. Makes for one of the most enjoyable experiences you'll have with the car. Please update us! I could technically walk to work everyday. 15 mile trip. I could walk it. But why walk when I can drive comfortably.

03-21-2013, 12:37 PM	#8 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 30	U could do it. Jus have patience, beer and more patience. You'll need to take breaks and know when to walk away n try again later.

03-21-2013, 12:51 PM	#9 (permalink)
Z370Z011 A True Z Fanatic Join Date: Jul 2012 Location: Los Angeles CA Posts: 1,052 Drives: PearlWhite 370z 6MT Rep Power: 16	good thing my neighbor is a certified mechanic with literally every tool you can think of.. some beers, pizza, and 100$ will make him happy haha

03-21-2013, 01:29 PM	#10 (permalink)
deuce189 Base Member Join Date: May 2011 Location: Charleston, SC Posts: 142 Drives: 09 370Z MB M6 sport Rep Power: 16	Whats the window's on all the different Tiers for the group buys?

03-21-2013, 05:31 PM	#14 (permalink)
Footloose301 A True Z Fanatic Join Date: Apr 2010 Location: Naples, FL Posts: 2,659 Drives: 40th Rep Power: 23	How much power did that top graph get? 11psi on 91octance should be 550whp+? __________________ 2010 40th Anniversary 370Z

03-21-2013, 05:33 PM	#15 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 30	550? Naaaa

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE	SAM@GTM	Forced Induction	1161	02-16-2014 08:21 PM
GTM Performance Engineering: Mild 7 A/T Twin Turbo Build	SAM@GTM	Forced Induction	37	12-11-2013 12:23 PM
GTM Performance Engineering: 370Z MHI Twin Turbo Pre-Release	SAM@GTM	Forced Induction	120	09-06-2013 06:21 PM
GTM Performance Engineering stage 2 600hp supercharger kits line-up press release	SAM@GTM	Forced Induction	305	09-27-2012 03:23 PM