Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   Gtm 370z twin turbo transformation 548rwhp 486rwtq @ 11 psi (http://www.the370z.com/forced-induction/28891-gtm-370z-twin-turbo-transformation-548rwhp-486rwtq-11-psi.html)

weiboy718 12-12-2010 07:03 PM
Look what have you've done SHUMBY!

that homo is stuck in Korea btw!

Phimosis 12-12-2010 07:14 PM
Nice setup. Getting to the point of scary though, isn't it? 11 psi on stock internals with an engine that's 11:1 compression to begin with seems like it's going to have longevity issues.

I've got 3 real questions though: 1) is that tuned for 93 octane or something even higher? Seems like you would need higher octane to prevent detonation under 11 pounds of boost while maintaining enough advance to get that kind of power. 2) the 509 whp graph is smooth where the 548 whp is rough. Is that a tune with more advance and the knock sensors are pulling some of the advance? if so, do you give the customer that tune and say, "no problem, it's safe", or do you give them the more conservative 509 whp tune? and 3) can you show us dyno's that start down at 2,500 rpm so we can see how streetable this car would be? 4k+ tells us what it will do at the track, but it would be miserable as a daily driver if the boost doesn't come on early.

fstrnldr 12-13-2010 01:02 AM
Quote:
Originally Posted by Phimosis (Post 848555)
Nice setup. Getting to the point of scary though, isn't it? 11 psi on stock internals with an engine that's 11:1 compression to begin with seems like it's going to have longevity issues.
Google Static VS Dynamic Compression, than factor in what the VVEL cam set up is capable of doing, and you may have a better understanding of why that isn't as scary as it would be in a something like a 350 Chevy engine or something similar that is a more basic engine.

InTheZone 12-23-2010 09:46 AM
looks good, is the first graph the dyno of the setup after it was tuned and the 2nd graph before it was tuned? 2nd looks rough.

96bigbody 12-23-2010 02:34 PM
Quote:
Originally Posted by Blue370tt (Post 848529)
I do listen and in general dont start trouble. On the previous page someone stated "the 7AT cant handle the power" and at this point thats not true and unfair because mine has and still is. That poster shoud have added "some" to his statements about the 7AT. Also, everyone keeps forgetting that the 7AT problems that have occurred are with the SC not TT. When I point this out to the "haters" their comeback is always "power is power" "HP is HP" "TQ is TQ" but I disagree. The TQ and HP curve is slightly different from a SC to a TT. Could this be the difference.....I dont know and neither does anyone else. My car has been TT'd for about 1 year and roughly 2000 miles and has had no tranny issues like the SC guys. Could it happen down the road.....maybe......maybe not. If it does, I wont shy away from letting everyone on here know I am having problems. I dont like Nismo's or 6MTs or body kits on the 370 but you dont see me bashing others that do like them. Until we "actually know" what caused shumby and others 7AT failures, we cant label the 7AT as at fault or bad or cant handle it.
Bring your tranny touched by god to the track and lets see how it does.

Footloose301 12-23-2010 03:15 PM
Quote:
Originally Posted by 96bigbody (Post 864054)
Bring your tranny touched by god to the track and lets see how it does.
:icon18:

Koji_Online 12-23-2010 03:32 PM
Damm this build is incredible; epic results!

Kastley85891 12-23-2010 04:52 PM
My trouble would be pushing it farther to be honest - that has cost me a motor in the past ;-)

I am sure the OP and GTM have a dam good handle on it... bet it is an awesome ride..
any in car vids?

Devildog 01-06-2011 07:53 PM
I saw the list that you put up and i was wondering if you changed the cams, and if you did which ones do you have i would realy like the info thanks.

SAM@GTM 01-06-2011 08:09 PM
Quote:
Originally Posted by Devildog (Post 883951)
I saw the list that you put up and i was wondering if you changed the cams, and if you did which ones do you have i would realy like the info thanks.
Just to give a straight simple answer, its a 100 % stock engine.

Sam

JB-370z 01-06-2011 08:36 PM
This car is amazing! I need External waste gates! Which brings up a good point. Will any company come out with some new cams for the z? GTM?

Vinny 01-07-2011 12:07 PM
Was just looking at the stage 2 TT G37 thread and noticed that George (I think it's George) from GTM said that he did not recommend going over 500whp on stock internals. Has something changed since then? Was that just to be on the safe side?

SAM@GTM 01-07-2011 10:04 PM
Quote:
Originally Posted by Vinny (Post 884867)
Was just looking at the stage 2 TT G37 thread and noticed that George (I think it's George) from GTM said that he did not recommend going over 500whp on stock internals. Has something changed since then? Was that just to be on the safe side?
Being on the safe side more then anything else .

Sam

#452-LE 01-08-2011 07:19 AM
<------ 470whp/ 422tq at just under 10PSI as of 6:38PM, 1/7/11.

Thank you Sam!!! Do you have products to remove the snow from Virginia????


Quote:
Originally Posted by SAM@GTM (Post 885803)
Being on the safe side more then anything else .

Sam

SAM@GTM 01-08-2011 11:44 AM
Quote:
Originally Posted by #452-LE (Post 886130)
<------ 470whp/ 422tq at just under 10PSI as of 6:38PM, 1/7/11.

Thank you Sam!!! Do you have products to remove the snow from Virginia????
No we only sell speed :tup: Glad you are enjoying the new found power

Sam

Vegitto-kun 01-08-2011 01:54 PM
I waaaant this so badly

too bad I don't live in america....+ 7AT + il probably die after a week :p

blackbird 01-18-2011 04:52 PM
I have a 2009 370 GTM stage 2 TT (Z1 John did the great work). Doing 508whp at 8PSI. Have stock clutch and will go with Bigger clutch and 10PSI in the spring right after I retire. I live in New Hampshire and have no problems with internals or anything else. Anytime I punch it, I get sideways. saves internals. The car also drifts really great in the snow on exit or on-ramps with Blizzaks. May have to do with 18in wheels. May need to get 19in to put the hp to the road. Does make me smile, a lot.

ChrisSlicks 01-18-2011 05:13 PM
Quote:
Originally Posted by blackbird (Post 900564)
I have a 2009 370 GTM stage 2 TT (Z1 John did the great work). Doing 508whp at 8PSI. Have stock clutch and will go with Bigger clutch and 10PSI in the spring right after I retire. I live in New Hampshire and have no problems with internals or anything else. Anytime I punch it, I get sideways. saves internals. The car also drifts really great in the snow on exit or on-ramps with Blizzaks. May have to do with 18in wheels. May need to get 19in to put the hp to the road. Does make me smile, a lot.
TT Z on Blizzaks, that's awesome!

Kastley85891 01-18-2011 07:17 PM
**** yeah lol

danielcast 01-23-2011 11:04 AM
how much??
 
Any military discounts?? Looking for this build in couple of months.. thanks

SAM@GTM 01-23-2011 02:02 PM
Quote:
Originally Posted by danielcast (Post 908013)
Any military discounts?? Looking for this build in couple of months.. thanks
Yes we do, Got you pm . should have something for you shortly.

Sam

Nismo221 01-23-2011 02:23 PM
Nice build

CarbonSignal 01-23-2011 03:27 PM
very nice build.

i always say : GTM FTW :) ..

have a GTM stg 2 on my car and i can never complain. amazing quality

Nismo221 01-23-2011 04:26 PM
I'm looking into having Z1 Motorsprts install a stage 4 GTM in my Nismo, but it will be sometime this summer before I have the time to have it done.

pquaid 01-28-2011 10:23 AM
very impressive #s!! I have a couple questions.
1. What size injectors?
2. did you upgrade MAF sensors?
3. did you use Race Gas?

I think my car can get there easy but my tuner says I would need to upgrade MAF sensors because they are about maxed out and my 550cc injectors are too.

toner123 01-28-2011 11:00 AM
Quote:
Originally Posted by pquaid (Post 916038)
very impressive #s!! I have a couple questions.
1. What size injectors?
2. did you upgrade MAF sensors?
3. did you use Race Gas?

I think my car can get there easy but my tuner says I would need to upgrade MAF sensors because they are about maxed out and my 550cc injectors are too.
I can answer this for sam since I have the kit
1 injectors are 600cc
2.no, Why would you be told they are maxed out. Reason I ask is because didn't know this is possible.
3. No this is not race fuel. All sams post are on pump gas. If he used a blend he says it in the initial post.

This is a great kit. Only thing I wish i did was go with the down pipes with external waste gates to get higher tq. But none the less I am still in love with me car.
Frank

JollyGoodChap 01-28-2011 12:13 PM
sick, everything is hidden pretty much

toner123 01-28-2011 12:19 PM
Quote:
Originally Posted by JollyGoodChap (Post 916236)
sick, everything is hidden pretty much
Yea lol a guy was looking at my car and asked if he could look under the hood. Well I said sure and I never mentioned anything about a TT kit. First words were OO got a cold air intake I see. My budy started laughing so hard. Good times

theDreamer 01-28-2011 01:02 PM
Quote:
Originally Posted by toner123 (Post 916248)
Yea lol a guy was looking at my car and asked if he could look under the hood. Well I said sure and I never mentioned anything about a TT kit. First words were OO got a cold air intake I see. My budy started laughing so hard. Good times
I enjoy doing that to people.
Everyone around who knows the truth just starts to laugh or smile really big. Then they look at the bumper and see something extra.

Mr.Squeeze 01-28-2011 02:19 PM
Quote:
Originally Posted by toner123 (Post 916248)
Yea lol a guy was looking at my car and asked if he could look under the hood. Well I said sure and I never mentioned anything about a TT kit. First words were OO got a cold air intake I see. My budy started laughing so hard. Good times
I guess the front mount didnt catch his eyes :tup:

Red__Zed 01-31-2011 03:56 PM
outta control

pquaid 02-01-2011 03:21 PM
what do you have your boost set at on low boost just driving around and how often do you turn it to high? I have same boost controller set at 6.8 but it will spike in the 8s when i get on it.

JB-370z 02-01-2011 05:52 PM
Quote:
Originally Posted by pquaid (Post 921917)
what do you have your boost set at on low boost just driving around and how often do you turn it to high? I have same boost controller set at 6.8 but it will spike in the 8s when i get on it.
I dont think you want to have this much boost spike. Might ask Sam about this one.

350z 6spd 02-01-2011 06:05 PM
Quote:
Originally Posted by pquaid (Post 921917)
what do you have your boost set at on low boost just driving around and how often do you turn it to high? I have same boost controller set at 6.8 but it will spike in the 8s when i get on it.
The EVC VI? Try lowering the offset for the given setting.

Bad_Attitude 03-18-2011 10:50 AM
Sam, Id like to get a installed price quoted too please, Im considering doing this to my new Z when I get back from this shithole.

A.J@CarbonSignal 03-22-2011 02:55 PM
I love the sleeper look. Great job GTM..

548whp on a stock engine is quite impressive. Have we found the limit of the stock bottom end yet?

GZ3 03-23-2011 10:23 AM
Quote:
Originally Posted by A.J@CarbonSignal (Post 1002691)
I love the sleeper look. Great job GTM..

548whp on a stock engine is quite impressive. Have we found the limit of the stock bottom end yet?
:tup:

the sleeper look is win!

OKC Z 03-23-2011 11:55 AM
great job
 
I want the tt setup really bad. :ughdance: I just dont know how to do it. I aint got that kind of cash to spend. Ive been thinking of what could do to come up with the money. Maybe Im gonna start selling my body to the ladies, hey if it gets me the kit. Ill be a male wh*re for a while.

#452-LE 03-23-2011 01:37 PM
Quote:
Originally Posted by OKC Z (Post 1004757)
I want the tt setup really bad. :ughdance: I just dont know how to do it. I aint got that kind of cash to spend. Ive been thinking of what could do to come up with the money. Maybe Im gonna start selling my body to the ladies, hey if it gets me the kit. Ill be a male wh*re for a while.
Truck stops are hiring "Lot Lizards"......

Not a sermon, just a thought.




j/king of course.

GZ3 03-23-2011 03:14 PM
is this with completely stock internals?


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