Flat plane crankshaft?

Elmo370z · 09-17-2015, 02:46 PM

What are your guys thoughts on this for our motors?

SouthArk370Z · 09-17-2015, 03:14 PM

Random thoughts:
Would this be a drop-in mod? Spark timing would have to be changed - how difficult would that be? I noticed that different exhaust manifolds are needed for max improvement - what about the intake side?
Seems like a track-only mod to me (increased vibration with accompanying maintenance, plus you'd need to beef up some of the other internals to handle the higher RPMs for not a lot of extra ponies) but I'm more than willing to provide some moral support to anyone that wants to try it.

abm89 · 09-17-2015, 04:22 PM

I would definitely be more difficult to implement than in a V8 application. You could fire 3 cylinders at a time, but the motor would be unbalanced. That's probably why it hasn't been done (im assuming it hasn't been done).

Elmo370z · 09-17-2015, 05:14 PM

Just as i thought. Well its was a question

Eclipz · 09-17-2015, 06:07 PM

I asked 1slowz the same question and he said that the V angle of the vq37 engine does not allow for a flat plane crank. I believe Flat plane crank v6 engines usually have a 60 degree angle

Sent from my SGH-T999L using Tapatalk

Elmo370z · 09-17-2015, 06:31 PM

Ahhh i gotcha.i think i remeber reading that, now that you bring that up

09-17-2015, 02:46 PM	#1 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	Flat plane crankshaft? What are your guys thoughts on this for our motors?

09-17-2015, 03:14 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324199	Random thoughts: Would this be a drop-in mod? Spark timing would have to be changed - how difficult would that be? I noticed that different exhaust manifolds are needed for max improvement - what about the intake side? Seems like a track-only mod to me (increased vibration with accompanying maintenance, plus you'd need to beef up some of the other internals to handle the higher RPMs for not a lot of extra ponies) but I'm more than willing to provide some moral support to anyone that wants to try it. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

09-17-2015, 04:22 PM	#3 (permalink)
abm89 A True Z Fanatic Join Date: Feb 2013 Location: Austin, Texas Posts: 1,390 Drives: 11 370Z, 2x Kawasaki Rep Power: 64765	I would definitely be more difficult to implement than in a V8 application. You could fire 3 cylinders at a time, but the motor would be unbalanced. That's probably why it hasn't been done (im assuming it hasn't been done). __________________ Complete Parts List: https://github.com/abm89/ztouge-build

09-17-2015, 06:07 PM	#5 (permalink)
Eclipz Enthusiast Member Join Date: Dec 2013 Location: Tampa Posts: 360 Drives: 06 Eclipse GS Rep Power: 13	I asked 1slowz the same question and he said that the V angle of the vq37 engine does not allow for a flat plane crank. I believe Flat plane crank v6 engines usually have a 60 degree angle Sent from my SGH-T999L using Tapatalk Trips and BGTV8 like this.

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09-17-2015, 05:14 PM	#4 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	Just as i thought. Well its was a question

09-17-2015, 06:31 PM	#6 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	Ahhh i gotcha.i think i remeber reading that, now that you bring that up