Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   Announcement!!! My New Manifold!!!! (http://www.the370z.com/intake-exhaust/25580-announcement-my-new-manifold.html)

ChrisSlicks 09-29-2010 07:10 AM
Quote:
Originally Posted by Cjanik (Post 741940)
^^ 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

Seether13 09-29-2010 08:07 AM
in for results

JohnnyBgood 09-29-2010 08:56 AM
subscribed

CBRich 09-29-2010 09:15 AM
Quote:
Originally Posted by ChrisSlicks (Post 742076)
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 (Post 741267)
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 (Post 742283)
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.

SE 09-29-2010 12:40 PM
Anyone have a dyno yet?

98intrigue 09-29-2010 05:24 PM
Quote:
Originally Posted by VICTORxSE (Post 742573)
Anyone have a dyno yet?
I will Saturday. Manifold gets here Friday. I'm trying to get you guys information asap, haha.

christian370z 09-29-2010 05:24 PM
Quote:
Originally Posted by Seb@SZ (Post 742431)
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.
If I wasn't having you guys do the oil cooler next week, I would. ;)

Seb, do you recommend updating the tune after installing these new manifolds?

Seb@SZ 09-29-2010 07:49 PM
Quote:
Originally Posted by christian370z (Post 743207)
If I wasn't having you guys do the oil cooler next week, I would. ;)

Seb, do you recommend updating the tune after installing these new manifolds?
Yes, if the A/F mixture changes enough to warrant a retune. No, if the mixture looks good.

Xan 09-29-2010 11:28 PM
Tony joined: http://www.the370z.com/intake-exhaus...ight=motordyne

ninous26 09-30-2010 04:21 AM
Lock/Merge?

I'd rather just keep up on one thread rather than two.


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