Stillen Headers (for the HR)
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From: NJ
Stillen Headers (for the HR)
I guess Stillen got some headers for the HR...
http://www.stillen.com/product.asp?i...SAN&model=350Z
Ceramic Coated 409 SS ($699)
409 SS ($519)
304 SS ($719)
Funny thing is, the description for the part has stats from a 2004 Z...
I'm guessing that the gains (if any) were not as good on the 2007.
I'd love to see some *real* numbers on these for the HR.
The main thing on my mind, I'm wondering if the the original headers really can be improved upon, and if we can expect to see more headers come out.
http://www.stillen.com/product.asp?i...SAN&model=350Z
Ceramic Coated 409 SS ($699)
409 SS ($519)
304 SS ($719)
Funny thing is, the description for the part has stats from a 2004 Z...
The equal length design of the headers allows better and more efficient exhaust scavenging which contributes to the performance gains tested on the dyno, the 2004 350Z produced 11.5 hp at @ 6200 RPM and 18.5-lb.ft @ 3800 RPM at the wheels.
I'd love to see some *real* numbers on these for the HR.
The main thing on my mind, I'm wondering if the the original headers really can be improved upon, and if we can expect to see more headers come out.
Last edited by sibble; Apr 1, 2008 at 07:01 PM.
Called stillen they said around 10-12 HP but it doesnt' sound reliable. They "can't" find the dyno sheets. I asked how they inproved the design and they said they jsut increased the tubing width so we'll have to see real dyno results before and after to see real results...
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From: NJ
I'd be surprised as well, but I'd like to see a real sheet on a HR with this mod. Only reason, I don't see a company putting the R&D into something like this, when the gains are minimum.
I could be wrong, and Stillen just wasted time & money on a product, but I'd still like to know...
I could be wrong, and Stillen just wasted time & money on a product, but I'd still like to know...
A problem I see with a lot of people criticising headers is that they're only concerned with peak power... no one ever mentions the power you gain under the curves. Sure, they might only net you a 5whp/10wtq peak gain, but try looking at the rest of the graph. There might be spots that gain twice that amount elsewhere.
Power under the curve typically comes from headers when they are long tube, which I just don't see happening with the small headers for our Z's...
I'm all ears if someone is going to try them out.
I'm all ears if someone is going to try them out.
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From: N. California
I dont think these would help. They make a comment about 2004 350 Z producing 11.5 hp at @ 6200 RPM and 18.5-lb.ft @ 3800 RPM at the wheels.
It doesn't show the gains for 2007+, however you can buy them for the 2007. So it seems that these headers will also work for vq35de as well as vq35hr?
It doesn't show the gains for 2007+, however you can buy them for the 2007. So it seems that these headers will also work for vq35de as well as vq35hr?
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Originally Posted by Velocity350Z
I dont think these would help. They make a comment about 2004 350 Z producing 11.5 hp at @ 6200 RPM and 18.5-lb.ft @ 3800 RPM at the wheels.
It doesn't show the gains for 2007+, however you can buy them for the 2007. So it seems that these headers will also work for vq35de as well as vq35hr?
It doesn't show the gains for 2007+, however you can buy them for the 2007. So it seems that these headers will also work for vq35de as well as vq35hr?
Originally Posted by bboypuertoroc
A problem I see with a lot of people criticising headers is that they're only concerned with peak power... no one ever mentions the power you gain under the curves. Sure, they might only net you a 5whp/10wtq peak gain, but try looking at the rest of the graph. There might be spots that gain twice that amount elsewhere.
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From: San Diego, CA
some of you guys aren't thinking correctly at all when it comes to mods.
a new exhaust comes out - and for the entire community, you'll most likely gain only 4 - 8 lb-ft. of torque.
and intake comes out, and for the most part you'll gain only 2 - 4 lb-ft. at the high end.
a set of headers come out, and you'll gain about 10 - 12 lb-ft.
you put those all together, and now we've taken our 260 lb-ft. engine up to 275 or maybe 285 lb-ft. if any of you are looking for massive 20 -30 lb-ft. gains...get real. no single bolt on mod exists. and please read...BOLT ON. engine modding has never been cheap, and never will be. so if you want massive gains all at once, go buy a turbo.
a new exhaust comes out - and for the entire community, you'll most likely gain only 4 - 8 lb-ft. of torque.
and intake comes out, and for the most part you'll gain only 2 - 4 lb-ft. at the high end.
a set of headers come out, and you'll gain about 10 - 12 lb-ft.
you put those all together, and now we've taken our 260 lb-ft. engine up to 275 or maybe 285 lb-ft. if any of you are looking for massive 20 -30 lb-ft. gains...get real. no single bolt on mod exists. and please read...BOLT ON. engine modding has never been cheap, and never will be. so if you want massive gains all at once, go buy a turbo.
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Joined: Jan 2007
Posts: 497
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From: N. California
Originally Posted by mcarlomagno
some of you guys aren't thinking correctly at all when it comes to mods.
a new exhaust comes out - and for the entire community, you'll most likely gain only 4 - 8 lb-ft. of torque.
and intake comes out, and for the most part you'll gain only 2 - 4 lb-ft. at the high end.
a set of headers come out, and you'll gain about 10 - 12 lb-ft.
you put those all together, and now we've taken our 260 lb-ft. engine up to 275 or maybe 285 lb-ft. if any of you are looking for massive 20 -30 lb-ft. gains...get real. no single bolt on mod exists. and please read...BOLT ON. engine modding has never been cheap, and never will be. so if you want massive gains all at once, go buy a turbo.
a new exhaust comes out - and for the entire community, you'll most likely gain only 4 - 8 lb-ft. of torque.
and intake comes out, and for the most part you'll gain only 2 - 4 lb-ft. at the high end.
a set of headers come out, and you'll gain about 10 - 12 lb-ft.
you put those all together, and now we've taken our 260 lb-ft. engine up to 275 or maybe 285 lb-ft. if any of you are looking for massive 20 -30 lb-ft. gains...get real. no single bolt on mod exists. and please read...BOLT ON. engine modding has never been cheap, and never will be. so if you want massive gains all at once, go buy a turbo.
- but there is no turbo for HR motor yet. :P
Originally Posted by sibble
Ya the numbers for the 04 obviously wouldn't be the same for the HR. But I'd feel safe saying that they're a different design, because the headers on the DE and the HR are not interchangeable.
TK
Originally Posted by T_K
The headers are not interchangeable, however, the headers and test pipe combos are. DE headers + DE test pipes = HR ok. DE headers + HR test pipes = HR not ok. HR headers + DE test pipes = HR not ok.
TK
TK