Announcement!!! My New Manifold!!!!

ChrisSlicks · 09-29-2010, 07:10 AM

Quote:

Originally Posted by Cjanik

^^ it sounded like they said it switches between long and short runners, RPM depending, to maximize the low and high powerbands.

If they can really do that then they can have the best of both, interesting.

ChrisSlicks · 09-29-2010, 07:27 AM

Apparently this idea has been around for a while, a switchable manifold was patented by Seimens back in 1988 and Ford patented a continuously variable manifold in 1998.

Ford Variable Intake Manifold Patent

CBRich · 09-29-2010, 09:15 AM

Quote:

Originally Posted by ChrisSlicks

Apparently this idea has been around for a while, a switchable manifold was patented by Seimens back in 1988 and Ford patented a continuously variable manifold in 1998.

Ford Variable Intake Manifold Patent

Pretty sure Honda did this with quite a few engines also. I know the H22A I put in my Accord had variable intake runners.

G Fo12ce · 09-29-2010, 10:12 AM

Quote:

Originally Posted by ChrisSlicks

I don't see how it can make more power at all points of the curve. If they are lengthening the runners then theoretically they are giving up a little in the top end in order to get a fatter mid-section. Overall it may be faster but the peak power number won't necessarily read higher. Interested to see the independent dyno comparison.

Chris judging by your avatar I'd think you'd still like it anyway right? Just making an analagy since we have no numbers and definitly not an attack on you.

If you got a fatter mid section where the power under the curve was higher and in a broader rpm range, wouldn't you rather have that at the loss of (I'm guessing) only a few HP up top? For road racing who really cares if you lost 5hp from 7k to 7.5k rpm if you got +10 from say 3k to 6500 where the car spends more of it's time.

ChrisSlicks · 09-29-2010, 10:22 AM

Quote:

Originally Posted by G Fo12ce

Chris judging by your avatar I'd think you'd still like it anyway right? Just making an analagy since we have no numbers and definitly not an attack on you.

If you got a fatter mid section where the power under the curve was higher and in a broader rpm range, wouldn't you rather have that at the loss of (I'm guessing) only a few HP up top? For road racing who really cares if you lost 5hp from 7k to 7.5k rpm if you got +10 from say 3k to 6500 where the car spends more of it's time.

Yes I would definitely consider this even if there was a peak power loss. I spend most of my time between 4-6k when autocrossing.

G Fo12ce · 09-29-2010, 10:38 AM

Would be nice to have +'s everywhere though. looking forward to more info. Does Tony from Motordyne post here ever?

Seb@SZ · 09-29-2010, 11:50 AM

If any local Z34 owners want to buy the manifold from us at a better price we can work something out for labor & dyno time.

09-29-2010, 07:27 AM	#2 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 655	Apparently this idea has been around for a while, a switchable manifold was patented by Seimens back in 1988 and Ford patented a continuously variable manifold in 1998. Ford Variable Intake Manifold Patent __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

09-29-2010, 10:38 AM	#6 (permalink)
G Fo12ce Premium Member Join Date: Nov 2009 Location: Socal Posts: 996 Drives: Sold! Rep Power: 53	Would be nice to have +'s everywhere though. looking forward to more info. Does Tony from Motordyne post here ever? __________________ Nismo Suspension: New Owners Check Here!

09-29-2010, 11:50 AM	#7 (permalink)
Seb@SZ Enthusiast Member Join Date: Jan 2010 Location: Chatsworth Posts: 277 Drives: Zs Rep Power: 26	If any local Z34 owners want to buy the manifold from us at a better price we can work something out for labor & dyno time. __________________ Z Car Specialists www.specialtyz.com Blog http://specialtyz.com/blog/

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