GTM SC installs reviewed

theDreamer · 11-11-2010, 11:53 AM

I believe I am the only one running LTHs currently, I believe a few have HFC.

Z1804 · 11-11-2010, 11:55 AM

Quote:

Originally Posted by theDreamer

I believe I am the only one running LTHs currently, I believe a few have HFC.

What's the performance difference between the two?

RCZ · 11-11-2010, 01:59 PM

^ good luck getting even a remotely accurate answer.

toner123 · 11-11-2010, 03:12 PM

Quote:

Originally Posted by RCZ

^ good luck getting even a remotely accurate answer.

We all have been waiting for the answer to that question
Frank

Jordo! · 11-11-2010, 04:10 PM

Quote:

Originally Posted by Z1804

What's the performance difference between the two?

Looking at posted dynos, it looks like LTH's, which eliminate the cat, tend to make about 2-3% more power from baseline than test pipes.

That translates into 6 - 8 more whp than TP's alone... I could be a bit off, but I think that's about right.

Q8y_drifter · 11-11-2010, 04:51 PM

Quote:

Originally Posted by Buddy Revell

^However, CGMobile says it's happening with the VQ35HR kit too which only has a single intake I believe.

Only on the 350Z HR. G sedan uses dual intakes as well.

christian370z · 11-11-2010, 04:59 PM

Quote:

Originally Posted by Jordo!

Looking at posted dynos, it looks like LTH's, which eliminate the cat, tend to make about 2-3% more power from baseline than test pipes.

That translates into 6 - 8 more whp than TP's alone... I could be a bit off, but I think that's about right.

Wait, I thought people were losing a bit of power with LTHs on SC'ed Z?

toner123 · 11-11-2010, 05:19 PM

Quote:

Originally Posted by christian370z

Wait, I thought people were losing a bit of power with LTHs on SC'ed Z?

From my understanding people are losing power with the LTHs. If they were gaining power people would not be holding back dyno info. I also remember shumby was losing power and thats why he went back to the stock ones. Maybe I am confused but I am pretty sure of it.
Frank

shumby · 11-12-2010, 02:22 AM

^^^ yes I was . i went back to stock headers and cats. Will but the LTH's back on when Sam gets it all streight on dreamers car. ( oh and once i get my transmission replaced)

CGMobile370Z · 11-12-2010, 08:37 AM

Quote:

Originally Posted by Buddy Revell

^However, CGMobile says it's happening with the VQ35HR kit too which only has a single intake I believe.

On the VQ35HR GTM S/C kits the fluttering sound seems alot more noticable on the G35 which has the dual air filter intake setup, the 350Z has the single air filter intake and it sounds like the fluttering is only during shifts.

YouTube - GTM 350Z HR STAGE 1 SUPERCHARGER KIT 500HP-ROTREX C38 GTM SPEC

FINAL PICS :: Produce_7.mp4 video by GTMPOWER - Photobucket

Jordo! · 11-12-2010, 05:52 PM

Oh, sorry -- that was dumb of me -- was basing that on N/A dynos I have looked at.

That said, I'm surprised that people are losing power with a blower and headers... that doesn't quite make sense.

Even if you are making less boost, given the same S/C output, boost is just a measure of restriction, and better flow generally means more power. Tune issue maybe?

Jordo! · 11-12-2010, 05:53 PM

Quote:

Originally Posted by shumby

^^^ yes I was . i went back to stock headers and cats. Will but the LTH's back on when Sam gets it all streight on dreamers car. ( oh and once i get my transmission replaced)

Shumby, any upates one what exactly failed in the trans and why?

shumby · 11-12-2010, 05:57 PM

^^^ no not yet as it is still on the car. Should be gettign chsnged out this week or next week. then it will be sent to Sam at GTM and we will know more then. I'll keep you all posted but it will be a long time.

weiboy718 · 11-12-2010, 06:17 PM

Quote:

Originally Posted by shumby

^^^ no not yet as it is still on the car. Should be gettign chsnged out this week or next week. then it will be sent to Sam at GTM and we will know more then. I'll keep you all posted but it will be a long time.

No crap! Looks like you're stuck on the rig again haha.

shumby · 11-12-2010, 06:20 PM

^^^ why are you ignoring me on AIM?

11-11-2010, 11:53 AM	#211 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	I believe I am the only one running LTHs currently, I believe a few have HFC. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

11-12-2010, 02:22 AM	#219 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	^^^ yes I was . i went back to stock headers and cats. Will but the LTH's back on when Sam gets it all streight on dreamers car. ( oh and once i get my transmission replaced) __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

11-12-2010, 05:52 PM	#221 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Oh, sorry -- that was dumb of me -- was basing that on N/A dynos I have looked at. That said, I'm surprised that people are losing power with a blower and headers... that doesn't quite make sense. Even if you are making less boost, given the same S/C output, boost is just a measure of restriction, and better flow generally means more power. Tune issue maybe? __________________ Enjoy it. Destroy it.

11-12-2010, 05:57 PM	#223 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	^^^ no not yet as it is still on the car. Should be gettign chsnged out this week or next week. then it will be sent to Sam at GTM and we will know more then. I'll keep you all posted but it will be a long time. __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

11-12-2010, 06:20 PM	#225 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 44 Posts: 6,288 Drives: your sister Rep Power: 237	^^^ why are you ignoring me on AIM? __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

11-11-2010, 01:59 PM	#213 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	^ good luck getting even a remotely accurate answer.

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