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Ceramic Coated 409 SS ($699)
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Funny thing is, the description for the part has stats from a 2004 Z...
Quote:
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'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.
__________________ [07-350Z.Touring.PPW] fast intentions,hks,jdm horn,mugen,nismo,stillen,stoptech,toyo,valentine
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...
well, seeing their previous results for the DE, I'm more interested in seeing the torque numbers...
and if they're anything like they were for the DE, i wouldn't exactly say it's pointless
__________________ [07-350Z.Touring.PPW] fast intentions,hks,jdm horn,mugen,nismo,stillen,stoptech,toyo,valentine
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...
__________________ [07-350Z.Touring.PPW] fast intentions,hks,jdm horn,mugen,nismo,stillen,stoptech,toyo,valentine
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.
__________________ Team DNF - Evo IX GSR - FPBlack - 10's on pump? Let's find out...
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?
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?
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.
__________________ [07-350Z.Touring.PPW] fast intentions,hks,jdm horn,mugen,nismo,stillen,stoptech,toyo,valentine
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.
+1, F/I people are especially guilty of this. ive seen gains of 20whp+ 20wtq+ mid range with headers on a N/A Z. this is going off dyno of the same car on the same dyno.
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.
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Mike Carlomagno -2007 Carbon Silver 350Z - No Mods - 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.
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.
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.
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
Are you sure about that? I was told the exhaust manifolds were different from the DE to HR so that the older headers wouldn't match up. If that were the case people would be bolting up old header/test pipe combos on the HR left and right.
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'12 370Z | Stillen Gen3 | Stillen UD Pulley | M370 | FI Exhaust/HFCs | 4.08 Gears
Stillen Headers (for the HR)
TEIN MONO FLEX COILOVERS
- but there is no turbo for HR motor yet. :P
