Motordyne M370 is it just a 350Z plenum?

DEpointfive0 · 05-12-2012, 02:08 PM

Hey guys,
I always thought the Motordyne plenum was a 350Z plenum with different holes... At a recent car meet, I was informed that it was supposedly a 370 manifold that they saw open and do whatever they need to do

Can anyone shed light on this? And if anyone can provide a schematic or something, that would be awesome!

Thanks in advance!

edub370 · 05-12-2012, 04:13 PM

i THINK this is correct.... as sad as this is... i find it ironic that we upgrade our 370's with 350 parts... heads included

KB2 · 05-13-2012, 05:30 PM

not exactly sure,theres tons of debate on this product.

i have one myself on my 370 and i like it,i definatley notice more power,or as its described "more useable power"

wstar · 05-13-2012, 06:30 PM

Yes, it's a 350 manifold with the holes re-drilled to mount on our engine. It changes the length of the runners to shift the powerband downwards a little, and seems to make a net gain over the whole range in trade for a little HP loss at the peak RPMs. The main point of debate is that most of those gain charts are swapping manifolds on a car without changing the tune. I think the few that have tried tuning the ECU with the old manifold and then tuning with the new see very little net gain. In other words, the ECU fine-tuning and the manifold seem to overlap on gains considerably. Not enough data to say for sure though.

DEpointfive0 · 05-13-2012, 11:47 PM

WStar, I always appreciate your input, and I think you were the first guy who told me its a 350 plenum (now if only I can get the guy who says that it's a 370 intake that has been modified to chime in, we can have an Internet battle...) I personally think its a 350 intake because if you look into the plenum you can see different openings a difference to how the air is channeled...

Quote:

Originally Posted by wstar

Yes, it's a 350 manifold with the holes re-drilled to mount on our engine. It changes the length of the runners to shift the powerband downwards a little, and seems to make a net gain over the whole range in trade for a little HP loss at the peak RPMs. The main point of debate is that most of those gain charts are swapping manifolds on a car without changing the tune. I think the few that have tried tuning the ECU with the old manifold and then tuning with the new see very little net gain. In other words, the ECU fine-tuning and the manifold seem to overlap on gains considerably. Not enough data to say for sure though.

370Z JT · 05-14-2012, 12:34 AM

It's a 350Z upper manifold.

/end thread.

seymore4 · 05-14-2012, 12:51 AM

Quote:

Originally Posted by 370Z JT

It's a 350Z upper manifold.

/end thread.

Motordyne sure knows how to make money

Motordyne · 05-14-2012, 01:21 PM

Quote:

Originally Posted by DEpointfive0

Hey guys,
I always thought the Motordyne plenum was a 350Z plenum with different holes... At a recent car meet, I was informed that it was supposedly a 370 manifold that they saw open and do whatever they need to do

Can anyone shed light on this? And if anyone can provide a schematic or something, that would be awesome!

Thanks in advance!

Its a modified 350Z manifold.

DEpointfive0 · 05-14-2012, 08:41 PM

Lmao, can't beat that info! Thanks Motordyne!

Quote:

Originally Posted by Motordyne

Its a modified 350Z manifold.

05-12-2012, 02:08 PM	#1 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Motordyne M370 is it just a 350Z plenum? Hey guys, I always thought the Motordyne plenum was a 350Z plenum with different holes... At a recent car meet, I was informed that it was supposedly a 370 manifold that they saw open and do whatever they need to do Can anyone shed light on this? And if anyone can provide a schematic or something, that would be awesome! Thanks in advance!

05-12-2012, 04:13 PM	#2 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	i THINK this is correct.... as sad as this is... i find it ironic that we upgrade our 370's with 350 parts... heads included __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq Last edited by edub370; 05-12-2012 at 04:18 PM.

05-13-2012, 06:30 PM	#4 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	Yes, it's a 350 manifold with the holes re-drilled to mount on our engine. It changes the length of the runners to shift the powerband downwards a little, and seems to make a net gain over the whole range in trade for a little HP loss at the peak RPMs. The main point of debate is that most of those gain charts are swapping manifolds on a car without changing the tune. I think the few that have tried tuning the ECU with the old manifold and then tuning with the new see very little net gain. In other words, the ECU fine-tuning and the manifold seem to overlap on gains considerably. Not enough data to say for sure though. __________________ 7AT Track Car! Journal thread / Car setup details

05-14-2012, 12:34 AM	#6 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	It's a 350Z upper manifold. /end thread. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

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05-13-2012, 05:30 PM	#3 (permalink)
KB2 Base Member Join Date: Apr 2010 Location: Illinois Posts: 243 Drives: 370z Rep Power: 15	not exactly sure,theres tons of debate on this product. i have one myself on my 370 and i like it,i definatley notice more power,or as its described "more useable power"