Notices
370Z Engine & Drivetrain VQ37 Power and Delivery

Bone stock 370 + Stillen HFC & CBE + reflash/tune = +51whp!?!?

Thread Tools
 
Search this Thread
 
Old 05-12-2009, 06:46 AM
  #1  
jmwlenz
Registered User
Thread Starter
 
jmwlenz's Avatar
 
Join Date: Mar 2005
Location: San Diego
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Default Bone stock 370 + Stillen HFC & CBE + reflash/tune = +51whp!?!?

has anyone seen the writeup over @370 .com from 'killerbee370' ? I would post a link but the forum keeps changing it back to a my350z.com link?

Corect me if I am wrong but +51whp from just these simple bolt-ons seems pretty damn optimistic to me.

Last edited by jmwlenz; 05-12-2009 at 07:36 AM.
Old 05-12-2009, 07:04 AM
  #2  
davidv
Registered User
iTrader: (2)
 
davidv's Avatar
 
Join Date: Jun 2004
Location: Tucson, AZ
Posts: 42,754
Likes: 0
Received 10 Likes on 10 Posts
Default

What do you mean "my350z.com?" Isnt this "my350z.com?"
Old 05-12-2009, 08:09 AM
  #3  
darklocust
Banned
iTrader: (19)
 
darklocust's Avatar
 
Join Date: Aug 2007
Location: Milky Way
Posts: 212
Likes: 0
Received 0 Likes on 0 Posts
Default

he's tryin to link to an external forum which this forum automatically changes the link to my350z.com upon posting...

anyways... 51whp? how bout tq? that's damn nice!!!
Old 05-12-2009, 08:36 AM
  #4  
KS0385
Registered User
iTrader: (2)
 
KS0385's Avatar
 
Join Date: Aug 2008
Location: Boston, MA
Posts: 2,891
Received 1 Like on 1 Post
Default

You get just about the same gains on an HR. Maybe 5hp less.
Old 05-12-2009, 11:42 PM
  #5  
aloh
New Member
iTrader: (26)
 
aloh's Avatar
 
Join Date: Feb 2007
Location: socal
Posts: 4,190
Received 3 Likes on 1 Post
Default

yeah possibly so, but the 370 starts at a higher hp/tq level. FTW!!
Old 05-13-2009, 06:17 AM
  #6  
Datona Jess
Registered User
iTrader: (1)
 
Datona Jess's Avatar
 
Join Date: Apr 2006
Location: Novi, Michigan
Posts: 3,078
Likes: 0
Received 0 Likes on 0 Posts
Default

WOW
I know what mods I am going to be buying here soon...
I am just hoping more Exhausts come out...
Stillen is WAY too quiet for my blood.
Old 05-13-2009, 06:45 AM
  #7  
warmmilk
Registered User
iTrader: (5)
 
warmmilk's Avatar
 
Join Date: Nov 2006
Location: Seattle (area), WA
Posts: 2,921
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by KS0385
You get just about the same gains on an HR. Maybe 5hp less.
not really, A.H gained about 50 whp, but thats with every bolt on there is. this is just cats and an exhaust... the vhr is better than the hr in the "response to mods" area about the same amount as the hr is better than the de...

i think its somewhat amusing how defensive hr owners get that they're engine is no longer the best vq available, i'm an hr owner myself, but i have no trouble admiting that the 370 is superior in every way (except maybe looks, but thats completely subjective, so it doenst even count).

another thing that cracks me up is how some hr owners on here are saying "I'd never trade my 350 hr for the 370, the 350 hr is legendary"
............................................................ ............................................................ ....................................................
Old 05-13-2009, 06:51 AM
  #8  
crg914
Registered User
iTrader: (5)
 
crg914's Avatar
 
Join Date: Apr 2006
Location: NC
Posts: 1,704
Likes: 0
Received 0 Likes on 0 Posts
Default

That's a lot of power for just a few bolt ons. I'd trade my HR for a 370Z in a heartbeat. It's clearly an all-around better car. Anyone who can't admit that is in denial.
Old 05-13-2009, 08:05 AM
  #9  
mw9
Registered User
iTrader: (51)
 
mw9's Avatar
 
Join Date: Oct 2006
Location: cincinnati
Posts: 2,405
Likes: 0
Received 5 Likes on 5 Posts
Default

Got this from the website.

"Here comes the fun part...



The addition of high flow cats and a cat back exhaust really unleashes the beast with the 370Z. I had Technosquare install and test a set of Stillen HFC's and a Stillen CBE. In the end, the Stillen HFC's didn't put out the power that the Berk's did, however it's a decent starting point.

HOLY SH!*!!!! Am I reading this correctly???

Bone stock 370 + Stillen HFC + Stillen Catback = +40whp gain and +51whp with tune/reflash!?!?!?! Thats unheard of!!!! Can anyone else replicate these gains? If this is correct the 370z OEM exhaust must be REALLY restrictive.



First, the graph... power parts (black line) and then power parts with the tune (red line)...



Remember my base line? 261 whp on the Superflow dyno. With the addition of the HFC & CBE it jumps clear up to 301!! Add 11 more with the tune and 312 is what I'm left with. Wow!"
Attached Thumbnails Bone stock 370 + Stillen HFC & CBE + reflash/tune = +51whp!?!?-3462948772_446bcdd255_o.jpg  

Last edited by mw9; 05-13-2009 at 08:11 AM.
Old 05-13-2009, 09:43 AM
  #10  
Reyes5937
Registered User
iTrader: (6)
 
Reyes5937's Avatar
 
Join Date: Aug 2006
Location: Los Angeles
Posts: 546
Likes: 0
Received 1 Like on 1 Post
Default 370Z w/ Full Intake & Exhaust: Dyno Results

http://www.youtube.com/watch?v=mulceSkOb3g

makes 324 rwhp

Last edited by Reyes5937; 05-13-2009 at 09:45 AM.
Old 05-13-2009, 06:07 PM
  #11  
KS0385
Registered User
iTrader: (2)
 
KS0385's Avatar
 
Join Date: Aug 2008
Location: Boston, MA
Posts: 2,891
Received 1 Like on 1 Post
Default

Originally Posted by warmmilk
not really, A.H gained about 50 whp, but thats with every bolt on there is. this is just cats and an exhaust... the vhr is better than the hr in the "response to mods" area about the same amount as the hr is better than the de...

i think its somewhat amusing how defensive hr owners get that they're engine is no longer the best vq available, i'm an hr owner myself, but i have no trouble admiting that the 370 is superior in every way (except maybe looks, but thats completely subjective, so it doenst even count).

another thing that cracks me up is how some hr owners on here are saying "I'd never trade my 350 hr for the 370, the 350 hr is legendary"
............................................................ ............................................................ ....................................................
I'm pretty sure he gained about 65whp with boltons from completely stock on an Auto.

I have no delusions that the 3.5HR is in any way better than the 3.7HR. It's just not. I'm just pointing out that the gains aren't that different from each other. I'd love a 3.7VHR in my Z.
Old 05-13-2009, 06:12 PM
  #12  
Nexx
New Member
iTrader: (41)
 
Nexx's Avatar
 
Join Date: Jun 2005
Location: DFW
Posts: 13,654
Received 8 Likes on 7 Posts
Default

Originally Posted by KS0385
You get just about the same gains on an HR. Maybe 5hp less.
rofl keep dreaming.. but seriously, will you HR's and VHR's please use a dynojet for once. wtf are up with all these Dynocom's and WynDynos.....
Old 05-13-2009, 08:11 PM
  #13  
singh
_______________
iTrader: (2)
 
singh's Avatar
 
Join Date: Oct 2005
Location: Houston, TX
Posts: 5,352
Likes: 0
Received 1 Like on 1 Post
Default

how does porsche make 415 horsepower out of their NA 6-cylinder?
Old 05-13-2009, 11:05 PM
  #14  
Nexx
New Member
iTrader: (41)
 
Nexx's Avatar
 
Join Date: Jun 2005
Location: DFW
Posts: 13,654
Received 8 Likes on 7 Posts
Default

Originally Posted by singh
how does porsche make 415 horsepower out of their NA 6-cylinder?
Old 05-14-2009, 09:29 AM
  #15  
icase81
Registered User
 
icase81's Avatar
 
Join Date: Apr 2009
Location: Reading, PA
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by singh
how does porsche make 415 horsepower out of their NA 6-cylinder?
Higher compression, rev's higher, better flowing heads, more aggressive tuning, more aggressive cams. Theres plenty of ways. With a porsche, you can make certain assumptions about the buyer. Like that they will maintain the vehicle properly, put the proper fuel and oil in it, etc. You can't make that assumption with a $30K Nissan.
Old 05-14-2009, 09:42 AM
  #16  
warmmilk
Registered User
iTrader: (5)
 
warmmilk's Avatar
 
Join Date: Nov 2006
Location: Seattle (area), WA
Posts: 2,921
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by KS0385
I'm pretty sure he gained about 65whp with boltons from completely stock on an Auto.

I have no delusions that the 3.5HR is in any way better than the 3.7HR. It's just not. I'm just pointing out that the gains aren't that different from each other. I'd love a 3.7VHR in my Z.
he started with about 265 (i don't remember for sure, but it was in the 260's) and ended with 318. 318-265=53.

Originally Posted by singh
how does porsche make 415 horsepower out of their NA 6-cylinder?
it makes about 380 to the wheels, its not that much of a stretch when you're designing an engine from scratch. imho, the vq35hr can make that much with a set of cams that will make power upto 8500 rpm (like the gt3) and some nice headers (nothing thats on the market right now) and other supporting mods required. it will prolly need better shortblock internals also so that it doesnt' blow up revving that high. this would have to be a full build, not just bolton's


*note the imho
Old 05-14-2009, 09:46 AM
  #17  
SOLO-350Z
'12 TL SH-AWD
iTrader: (26)
 
SOLO-350Z's Avatar
 
Join Date: Feb 2004
Location: Alamo
Posts: 6,348
Likes: 0
Received 1 Like on 1 Post
Default

He also has a auto.

Originally Posted by warmmilk
not really, A.H gained about 50 whp, but thats with every bolt on there is. this is just cats and an exhaust... the vhr is better than the hr in the "response to mods" area about the same amount as the hr is better than the de...

i think its somewhat amusing how defensive hr owners get that they're engine is no longer the best vq available, i'm an hr owner myself, but i have no trouble admiting that the 370 is superior in every way (except maybe looks, but thats completely subjective, so it doenst even count).

another thing that cracks me up is how some hr owners on here are saying "I'd never trade my 350 hr for the 370, the 350 hr is legendary"
............................................................ ............................................................ ....................................................
Old 05-14-2009, 10:02 AM
  #18  
KS0385
Registered User
iTrader: (2)
 
KS0385's Avatar
 
Join Date: Aug 2008
Location: Boston, MA
Posts: 2,891
Received 1 Like on 1 Post
Default

Originally Posted by warmmilk
he started with about 265 (i don't remember for sure, but it was in the 260's) and ended with 318. 318-265=53.
[/B]
Can you find a link to his baseline without any mods? The earliest I can find is him already having a bunch or random mods.

Last edited by KS0385; 05-14-2009 at 10:08 AM.
Old 05-14-2009, 10:39 AM
  #19  
icase81
Registered User
 
icase81's Avatar
 
Join Date: Apr 2009
Location: Reading, PA
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by warmmilk
another thing that cracks me up is how some hr owners on here are saying "I'd never trade my 350 hr for the 370, the 350 hr is legendary"
I wouldn't trade CARS, as I'm not a fan of the changes made to the 370, but motors? I'd change in a heart beat. However, I'm coming from a world where the biggest motor you could get was a 3.2L and they were big and heavy and expensive, so we used 1.8L blocks that could be maxed out to 2.1L. Having evne 3.5L is a godsend for me!
Old 05-14-2009, 11:12 AM
  #20  
warmmilk
Registered User
iTrader: (5)
 
warmmilk's Avatar
 
Join Date: Nov 2006
Location: Seattle (area), WA
Posts: 2,921
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by SOLO-350Z
He also has a auto.
that doesn't matter, it doesn't make a difference in power gained, only in the final power number.

Originally Posted by KS0385
Can you find a link to his baseline without any mods? The earliest I can find is him already having a bunch or random mods.
you can pm him for this, i'm not sure if he ever posted a chart, he either posted this info in one of his thread or pm'd it to me.


Quick Reply: Bone stock 370 + Stillen HFC & CBE + reflash/tune = +51whp!?!?



All times are GMT -8. The time now is 08:52 PM.