4.2L Twin Turbo 370Z (AUSTRALIA)

bullitt5897

Awesome build!!!


... However, your not getting the full potential out of your 4.2L. GT30's would be more suited for your displacement. Also running a DW300 fuel pump and a fuel return system along with 1000cc injectors would be better suited for the use of a 4.2L application.

just my 2cents...

All in all GREAT BUILD! Enjoy a fun car!

__________________
Shop Cars: 2013 318whp Nismo VspecII 370z *SOLD*, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054

Beastz

Thanks for all the awesome feedback guys
Yes the poor auto
Diff will also be done as well in the near future
Unsure of what we have stock, maybe something to check out
Wheels - All i will say is by Forged Wheels - 19/9.5+16 and 19/11+12, i will chuck up a sneaky pic soon. As for tyres i will be running 19/30/265 and 19/30or35/295or305

Will also post a pic of the engine bay.

Nope no issues thus far - the car has been driven around in 30+ degree days, was a thought to of removing the sensors that are on either side of the fangs for a bit more air flow.

AT is the same as from when i bought it back at the start of 2011, we have been tossing around the idea of going DCT or Sequential.

Thats just what came with the complete kit, pump and injectors will go bigger once the new F-Con and full tune happens.

Defineatly, will post up once the car is running again.

The OEM one cracked within the first week of getting the car back, from there we ordered the GTM Flex plate which also didn't stand up. Currently waiting for a new one to be sent, from there we are looking at custom making a billet one or strengthening the GTM one by riveting a plate onto it.

Cheers for the input all taken into conern, as previously said to the other replies, this is all just a start as it is the first in Aus to be Stroked and TT, i agree with the fuel setup needing adjustments. We want to see how the turbo's go when we up to the boost to at least 14psi. But first things first and thats finding out how to overcome the gearbox/tranny issues.

Mike@GTM

First off, congrats on getting your build done!

Those turbos are sound asleep though, especially with your low compression engine.

We've installed a large number of systems making well over 450whp on the stock transmission and stock flex plate and never had any issues. Something isn't right for you to have two flex plate failures at this power level especially just after the engine was installed.

The only reason for the flex plate to be failing like that is due to a misalignment between the transmission and the engine. In fact, a misalignment is a very common cause for flex plate failure.

You know, since your engine was removed for this build, I'm wondering if they reinstalled the dowel pins for aligning the transmission to the engine. Also, it is very likely that when the transmission was being installed, the dowel pins may have been pushed into their bores. Sometimes, people will not have the transmission lined up on the dowel pins and simply force the transmission onto the engine and end up pushing those alignment pins in. That is the only reason you would have flex plate failure so quickly like that and in such quick succession. A slight misalignment will overstress the flex plate and cause it to fail extremely quickly.

Keep in mind that our flex plate is treated to have better fatigue strength than the stock flex plate. Even still, it is vulnerable to improper installation. Not even a billet unit will stand up to improper alignment.

Beastz

Thanks Mike

Do you think that the extra torque from the stroke could be the problem?

Beastz

Finally!!!! They are here
[IMG][/IMG]
[IMG][/IMG]
[IMG] DSC_0122 by han074, on Flickr[/IMG]
[IMG] DSC_0115 by han074, on Flickr[/IMG]
[IMG] DSC_0113 by han074, on Flickr[/IMG]
[IMG] DSC_0111 by han074, on Flickr[/IMG][IMG] DSC_0109 by han074, on Flickr[/IMG]

Bigviet23

When are these getting mounted?

__________________
My slow build
http://www.the370z.com/members-370z-...ar-so-far.html