GTM Performance Engineering: MHI Twin Turbo Kit Group Buy

justboughtaz · 04-12-2013, 01:52 AM

Quote:

Originally Posted by vo370z

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.

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..

tower74 · 04-12-2013, 11:46 AM

Quote:

Originally Posted by justboughtaz

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

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

justboughtaz · 04-12-2013, 11:50 AM

Quote:

Originally Posted by tower74

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

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

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?

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

Quote:

Originally Posted by Mike@GTM

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.

P1210724.JPG
P1210728.JPG

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!!!

04-12-2013, 01:56 AM	#92 (permalink)
Infiniti370z Track Member Join Date: Sep 2010 Location: Coconut Creek, FL Posts: 604 Drives: Lamborghinis all day Rep Power: 15	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. Last edited by Infiniti370z; 04-12-2013 at 01:59 AM.

04-12-2013, 07:41 AM	#95 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 22	A 3" is also not needed unless your going for high HP numbers __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

04-12-2013, 11:44 AM	#97 (permalink)
justboughtaz Base Member Join Date: Apr 2013 Location: Phoenix, AZ Posts: 8 Drives: 2005 BMW 7 Series Rep Power: 12	There's room on the passenger side of the intercooler for an oil cooler... Ebay should be fine.. __________________ MY Nismo V2/Vortech SC/Tomei 350z Sold!!!

04-12-2013, 01:52 PM	#102 (permalink)
Mike@GTM Not an active Vendor. DO NOT BUY Join Date: Sep 2009 Location: California Posts: 391 Drives: '13 Hot Lava FR-S Rep Power: 16	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) Fearless_Z likes this.

04-14-2013, 09:11 PM	#105 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	Looking to jump on the band wagon!!! PM Sent!!! __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

04-12-2013, 07:14 AM	#93 (permalink)
tower74 A True Z Fanatic Join Date: Oct 2011 Location: KCMO Posts: 1,597 Drives: 2017 ZL1 Camaro Rep Power: 369	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.

04-12-2013, 07:32 AM	#94 (permalink)
Infiniti370z Track Member Join Date: Sep 2010 Location: Coconut Creek, FL Posts: 604 Drives: Lamborghinis all day Rep Power: 15	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.

04-12-2013, 11:16 AM	#96 (permalink)
khanhvu411 Base Member Join Date: Sep 2012 Location: houston Posts: 144 Drives: 2010 370z Roadster Rep Power: 12	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?

04-13-2013, 01:07 PM	#103 (permalink)
jza70turbo Base Member Join Date: Jun 2012 Location: Winnipeg Posts: 91 Drives: 40th Anniversary Rep Power: 12	Super tempted to join this! PM Sent !

04-14-2013, 10:46 AM	#104 (permalink)
airikrankin Base Member Join Date: Jan 2012 Location: pittsburgh Posts: 115 Drives: 12 370z Rep Power: 13	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!

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