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New 4.2L turbo 350z some???'s

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Old Oct 7, 2009 | 05:31 PM
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Default New 4.2L turbo 350z some???'s

Hey i just purchased a 2005 350z it already has the following done..... a GTM 2.4l stroker motor, SGP tranny, turbonetic's single turbo, HKS Fcon Pro V stand alone system, upgraded fuel pump and other some other smaller things. The car runs great, pulls strong, and the turbo spools with no problems. My question is every time i start my car or let the car idle, it surges up and down. it will go from just under 1,000 rpm to rate below 1,500 rpm, you can hear the engine revving up and down when idle.
mikep
Old Oct 7, 2009 | 05:36 PM
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sgp tranny.....might want to make sure its not stock. Do some searching about that shop.

4.2l and turbonetics...interesting combo.
Old Oct 7, 2009 | 06:17 PM
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Before i bought the car i did search about SGP, read some complaints and just got bored of that.
Old Oct 7, 2009 | 06:24 PM
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wow a 2.4L (de)stroker. I cant immagine the revs you are hitting with it destroked that much. 12kredline?


I dont know about the reving though. Im pretty sure it should not jump that High. should be more consistent. Just my guess, let someone who tunes turbos tell you though.
Old Oct 7, 2009 | 09:11 PM
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after about 50 miles of driving tonight its starting to idle around 1,000 rpm but still is revving up and down a little bit.
Old Oct 7, 2009 | 10:43 PM
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I would PM either Sharif@forged or Sam@GTM and see what they say the are real helpful and know their stuff.
Old Oct 7, 2009 | 11:01 PM
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i moved this before the flaming starts
Old Oct 8, 2009 | 12:05 AM
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any idea on what power you're making?
Old Oct 8, 2009 | 04:13 AM
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Originally Posted by marra23
any idea on what power you're making?
if he is making 400-450whp on a 4.2 with turbonetics.. im gonna shoot my self.

OP,
Pix of the ride??
Old Oct 8, 2009 | 04:32 AM
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jotec tuned the car when the motor was installed and it made around 450hp.... no pictures yet, just waiting on ebay to send me a battery for my camera.
Old Oct 8, 2009 | 04:54 AM
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Originally Posted by Vas@Extended
if he is making 400-450whp on a 4.2 with turbonetics.. im gonna shoot my self.

OP,
Pix of the ride??
hummm 450hp...start shooting

and at what boost?
Old Oct 8, 2009 | 04:59 AM
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Why would you go through all that expense to put a Turbonetics kit on the motor? Prepare for disappointment...
Old Oct 8, 2009 | 05:04 AM
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Originally Posted by Vas@Extended
if he is making 400-450whp on a 4.2 with turbonetics.. im gonna shoot my self.

OP,
Pix of the ride??

pew pew pew.....
Old Oct 8, 2009 | 05:11 AM
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4.2 for a turbonetics !!!!1
Old Oct 8, 2009 | 05:22 AM
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I bet the original owner had a big TT kit on it but swapped out to sell.
Old Oct 8, 2009 | 05:25 AM
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^I was thinkin he might have had a BIG single...
Old Oct 8, 2009 | 05:34 AM
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Is this the 350z turbonetics kit, or a custom turbonetics turbo fabrication?

4.2 and turbonetics kit= fail
Old Oct 8, 2009 | 05:43 AM
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Originally Posted by deeznutts23
^I was thinkin he might have had a BIG single...
Thats what i'm thinking, but with only 450hp, i'm skeptical
Old Oct 8, 2009 | 05:53 AM
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damnitt...im dead
Old Oct 8, 2009 | 05:58 AM
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Oh boy. This post makes me sad.



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