Nissan 370Z Forum - GTM Performance Engineering: MHI Twin Turbo Kit Group Buy

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Nissan 370Z Forum (http://www.the370z.com/)

- Group Buys (http://www.the370z.com/group-buys/)

- - GTM Performance Engineering: MHI Twin Turbo Kit Group Buy (http://www.the370z.com/group-buys/68651-gtm-performance-engineering-mhi-twin-turbo-kit-group-buy.html)

justboughtaz

04-12-2013 01:52 AM

Quote:

Originally Posted by vo370z (Post 2263067)

Please Put me on the list for the turn-key kit. Since I am new to FI, why would you go with 16g (less HP) than 20g ? What else are missing with the turn-key kit (oil cooler, turbo timer, spark plugs, ...). Is 16g safer to run than 20g ?

Turbo spool is the difference, smaller turbo spools up quicker and therefor introduces less turbo lag, while a larger turbo is capable of producing more power but takes longer to spool up or charge. I'm sure there will be a more discrete answer to follow this and I myself am curious as to which turbo most buyers will end up going with.

Infiniti370z

04-12-2013 01:56 AM

The 16g kit is the fastest responding kit built for the the stock block (+/-500hp), the 18g's are slightly less responsive as the 16g (due to more mass to spin) but more breathing room in the upper power band (due to bigger size), good for more available power than the stock block could handle (700hp) if one so chooses to upgrade block internals in their future but still usable on stock block with the correct tune (the kit I picked), the 20g(biggest turbos of the kits) requires built block for big power numbers (900hp). With any FI kit your gonna want get a big oil cooler, not included in the MHI tt kit. I don't think spark plugs are included but one step colder or gtr plugs shouldn't hurt. Also missing boost gauge and a wideband gauge.
Any one please correct me if Iam wrong.:tiphat:

tower74

04-12-2013 07:14 AM

I'm going with the 18g kit (rated for up to 700hp). The reason is because it will allow me room to grow if I decide. The 16g is for someone who only wants to go as far the stock block can handle. The 20g is for someone who wants to go big...a lot more involved then just a few simple upgrades.

Also you are correct about the missing items. You will need to buy an oil cooler---$200-$650, the gauges----around $900 for them and the spark plugs will be around----$25-$30 each. You may also look into upgrading you clutch, if you have a manual and a new exhaust system. Don't get me wrong I was told the system will work just fine with the stock exhaust but a 3" exhaust wouldn't hurt.

Infiniti370z

04-12-2013 07:32 AM

I think the stock clutch should last a little while if your a driver who doesn't abuse your clutch, but if you do then a clutch is a must, I also think a 2.5" dual high flow performance exhaust is minimum requirement.

Dzel	04-12-2013 07:41 AM

A 3" is also not needed unless your going for high HP numbers

khanhvu411

04-12-2013 11:16 AM

I just wonder where can I mount the oil cooler? This kit does not require to remove the crash bar so both intercooler will be behind it and that is where the oil cooler usually mounted. Can I keep my stock clutch for a while before an upgrade? For thr gauges, which are the must have? Anyone going to install this k8t with jack stand?

justboughtaz

04-12-2013 11:44 AM

There's room on the passenger side of the intercooler for an oil cooler... Ebay should be fine..

https://encrypted-tbn0.gstatic.com/i...T9KWn-ITzYXeeg

tower74

04-12-2013 11:46 AM

Quote:

Originally Posted by justboughtaz (Post 2263824)

There's room on the passenger side of the intercooler for an oil cooler... Ebay should be fine..

https://encrypted-tbn0.gstatic.com/i...T9KWn-ITzYXeeg

Umm have you even looked at this kit??? The pic's you are showing is for a 350z. This is a 370Z. Thanks though:tiphat: :facepalm:

justboughtaz

04-12-2013 11:50 AM

Quote:

Originally Posted by tower74 (Post 2263831)

Umm have you even looked at this kit??? The pic's you are showing is for a 350z. This is a 370Z. Thanks though:tiphat: :facepalm:

I included the pic just for reference, but I believe that the application may be very similar.

Dzel	04-12-2013 12:00 PM

Quote:

Originally Posted by khanhvu411 (Post 2263774)

Negative on the similarity all you'll have to do is turn your bracket around so that the oil cooler is closer to the ac condensor. That's it.

Infiniti370z

04-12-2013 12:26 PM

2 Attachment(s)

Quote:

Originally Posted by Mike@GTM (Post 2215680)

Well, here are a couple pictures to give you an idea where you can mount it. As you can see, there is room between the intercoolers and the condenser to mount the oil cooler. Otherwise, you could mount it in front of the intercooler instead. The is enough room between the vertical center support brace and the condenser to run the lines as well. Last, but not least, you can always get creative and do any number of things.

For example, we're doing a build right now using our GTM 70mm Competition Radiator with internal heat exchanger. It is being setup so that the engine oil runs through the heat exchanger inside the cold side of the radiator. Keep in mind, this may not be feasible for other aftermarket radiators on the market since their internal heat exchanger may not be rated for the higher pressure put out by the engine since internal heat exchangers are typically designed for transmission fluid which is run at much lower pressure. We designed our radiator's internal heat exchanger to handle the higher pressure for precisely this application.

:tiphat:

Attachment 66777
Attachment 66778

Mike@GTM

04-12-2013 01:52 PM

Only 11 more people needed to hit Tier 3 pricing!

Updated List:

1) showme99
2) Jordan11b
3) Mr. Q
4) mikey1600
5) blackonorange
6) Chemy
7) BeemaaZ
8) future370zzz
9) Btalont
10) Fearless_Z
11) Z370Z011
12) IPL 370GT
13) Akmcmahon
14) ZtoG37
15) djmac
16) Spiderrsx23 (myG37)
17) tower74
18) puckshaw
19) Infiniti370z
20) Alstann
21) Morterbooble
22) PureNick (myG37)
23) Neo187H
24) E_mares
25) Black Betty (myG37)
26) awightguy (myG37)
27) keng714
28) infamousstunna1 (myG37)
29) harbin9er (myG37)
30) nemesisG37s (myG37)
31) qnguyen018
32) justboughtaz
33) MX52Z
34) lilvi3tboyzz
35) 370zrider
36) 09nismo498
37) indyn
38) aBT
39) vo370z
40) "D"
41)
42)
43)
44)
45)
46)
47)
48)
49)
50)

jza70turbo

04-13-2013 01:07 PM

Super tempted to join this!

PM Sent !

airikrankin

04-14-2013 10:46 AM

any chance of the turn key kit with ext wastegates? also does the ext wg kit eliminate the need for test pipes? or does the stock cats stay in place still? thanks! ill jump in on this closer to end date, cant decide on int or ext wg. also with the layaway plan im sure more will join in also, im doin a winter build so that will work out perfect for me!

Hotrodz

04-14-2013 09:11 PM

Looking to jump on the band wagon!!!

PM Sent!!!

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