How much power do you think is safe on stock internals?

christian370z · 05-22-2011, 10:24 PM

From what I have gathered in this forum and from Seb at SpecialtyZ who has a TT370z, 500rwhp is comfortable with a GOOD tune but I have no direct experience with FI personally. The tune and supporting mods are the key ingredients, but this is purely on the basis that the car is street driven.

Mkai0 · 05-23-2011, 12:59 AM

I feel 500 WHP and a good tune is the sweet spot for these motors. Like Nismo 370z said, the way torque builds up on these motors helps with it's longevity. IMHO 450 is more than enough for the street! Gotta be able to put all that power to the ground somehow.

Red__Zed · 05-23-2011, 06:53 AM

450 would be my comfort limit.

JB-370z · 05-23-2011, 12:54 PM

100 million WHP!

Nitrouz · 05-23-2011, 01:46 PM

assuming the tune is spot on, it's going to be the torque that kills motors eventually, not hp.

jnaut · 05-23-2011, 02:42 PM

Yes, the way the tq builds esp the turbo cars. You can only load the rods bearings so many time before you spin one. Also @ 11 to 1 and having cast pistons is kinda scary, knowing what the cylinder pressures are under boost eeek, good luck F.I. guys

RCZ · 05-23-2011, 03:43 PM

I voted 450. I don't feel comfortable tracking my car as it is, much less with 500whp.

Flyboy · 05-23-2011, 04:05 PM

Y'all are making it sound like all 450+ HP FI cars are Doomed...

birdmanx1 · 05-23-2011, 04:14 PM

Quote:

Originally Posted by Flyboy

Y'all are making it sound like all 450+ HP FI cars are Doomed...

This thread is making one think twice about going FI on our cars. I guess one might be better off using the TT cash towards GTR instead and still get the 500+ whp without blowing up any engine.

theDreamer · 05-23-2011, 04:18 PM

It all comes down to what you plan to do with the car though, so some of you scared need to understand if you are going to be bouncing off the redline on a track then be prepared for something to blow.
If you plan to drive the car around on the street and have some fun here and there then 500whp with a good tune and built properly & maintained can be achieved for awhile I bet.

Flyboy · 05-23-2011, 04:36 PM

Quote:

Originally Posted by birdmanx1

This thread is making one think twice about going FI on our cars. I guess one might be better off using the TT cash towards GTR instead and still get the 500+ whp without blowing up any engine.

This is looking More Tempting, The 12k to Turbo can go towards a GTR..

birdmanx1 · 05-23-2011, 04:41 PM

Quote:

Originally Posted by Flyboy

This is looking More Tempting, The 12k to Turbo can go towards a GTR..

Exactemundo compadre and it's more like 15k-17k to do it right

I voted 450whp for the Z based on tuner's experience.

Flyboy · 05-23-2011, 04:45 PM

Quote:

Originally Posted by birdmanx1

Exactemundo compadre and it's more like 15k-17k to do it right

I voted 450whp for the Z based on tuner's experience.

Problem is, I still owe high 30's on my car...

Nismo370 · 05-23-2011, 04:49 PM

Yes you can spend that money on a GTR but do you know how much is cost to maintain that car. Let alone th parts are ridiculously expensive 3k+ for a catback, no thank you I pass.

RCZ · 05-23-2011, 05:07 PM

Ah the GT-R would be fun...I've read too many threads and articles of people paying $2000 for normal maintenance visits. Oil for it is over $100 per quart and it needs like 8 of them. Air filters are $50 each. Add in labor and stuff and next thing you know its on eBay..

View Poll Results: What is the WHP ceiling of stock internals?
400WHP	16	8.51%
450WHP	50	26.60%
500WHP	64	34.04%
550WHP	33	17.55%
600WHP	25	13.30%
Voters: 188. You may not vote on this poll

05-22-2011, 10:24 PM	#16 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 431	From what I have gathered in this forum and from Seb at SpecialtyZ who has a TT370z, 500rwhp is comfortable with a GOOD tune but I have no direct experience with FI personally. The tune and supporting mods are the key ingredients, but this is purely on the basis that the car is street driven. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

05-23-2011, 12:54 PM	#19 (permalink)
JB-370z A True Z Fanatic Join Date: Apr 2009 Location: Houston, Tx Posts: 1,859 Drives: Stage 2 Twin Turbos Rep Power: 18	100 million WHP! Array likes this. __________________ ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

05-23-2011, 01:46 PM	#20 (permalink)
Nitrouz Track Member Join Date: Nov 2010 Location: Vancouver, BC Posts: 934 Drives: 40th Z, GTR, 420z-tt Rep Power: 15	assuming the tune is spot on, it's going to be the torque that kills motors eventually, not hp. __________________ 2010 370Z 40th Anniversary - Anastasia VENACI / AERO JACKET / HKS USA / MXP / NISMO / FALKEN / STILLEN / T1R / MR WORKS / CARBON SIGNAL / EVO-R / BLUE BATMOBILE

05-23-2011, 02:42 PM	#21 (permalink)
jnaut A True Z Fanatic Join Date: Dec 2009 Location: wpb, fl Posts: 1,146 Drives: 09 370z Rep Power: 17	Yes, the way the tq builds esp the turbo cars. You can only load the rods bearings so many time before you spin one. Also @ 11 to 1 and having cast pistons is kinda scary, knowing what the cylinder pressures are under boost eeek, good luck F.I. guys __________________ Best 1/4 mile 12.24 Best mph 114.5_______

05-23-2011, 12:59 AM	#17 (permalink)
Mkai0 Base Member Join Date: Dec 2010 Location: Somewhere in Texas Posts: 209 Drives: 2008 G35 Sedan Rep Power: 14	I feel 500 WHP and a good tune is the sweet spot for these motors. Like Nismo 370z said, the way torque builds up on these motors helps with it's longevity. IMHO 450 is more than enough for the street! Gotta be able to put all that power to the ground somehow.

05-23-2011, 06:53 AM	#18 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 119	450 would be my comfort limit.

05-23-2011, 03:43 PM	#22 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1118	I voted 450. I don't feel comfortable tracking my car as it is, much less with 500whp.

05-23-2011, 04:05 PM	#23 (permalink)
Flyboy Base Member Join Date: Jul 2010 Location: Destin, Fl Posts: 152 Drives: Nismo Rep Power: 14	Y'all are making it sound like all 450+ HP FI cars are Doomed...

05-23-2011, 04:18 PM	#25 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	It all comes down to what you plan to do with the car though, so some of you scared need to understand if you are going to be bouncing off the redline on a track then be prepared for something to blow. If you plan to drive the car around on the street and have some fun here and there then 500whp with a good tune and built properly & maintained can be achieved for awhile I bet. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

05-23-2011, 04:49 PM	#29 (permalink)
Nismo370 Enthusiast Member Join Date: Sep 2009 Location: Dont Worry Bout It... Posts: 333 Drives: 09 370Z NismoTT Rep Power: 15	Yes you can spend that money on a GTR but do you know how much is cost to maintain that car. Let alone th parts are ridiculously expensive 3k+ for a catback, no thank you I pass. __________________ GTM Twin Turbo 583whp 468trq Uncorrected @ 12psi.

05-23-2011, 05:07 PM	#30 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1118	Ah the GT-R would be fun...I've read too many threads and articles of people paying $2000 for normal maintenance visits. Oil for it is over $100 per quart and it needs like 8 of them. Air filters are $50 each. Add in labor and stuff and next thing you know its on eBay..

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