DIY 350zHR Intake Swap

nitrousfedman · 04-14-2012, 08:31 AM

How did the intake swap work out for you. I have found a stillin supercharger for a 370z, for a good price thinking about buying and trying the same thing. How did the finished product work out for you.

Xan · 11-04-2010, 07:51 PM

Did you get it on, sealed up and running?

Megan370z · 11-04-2010, 08:22 PM

Quote:

Originally Posted by Xan

Did you get it on, sealed up and running?

not really because I have to get some more work done on the last hole ( Hole #4 )
once the alignment is correct and the screw in .
I'll be able to get on the next step of filling the hole to be able to hold down the intake manifold.

the sealing is not a problem , the last hole is.
you just have to look at the picture and you can have a pretty good idea of what I'm talking about.

Megan370z · 11-25-2010, 07:04 PM

another Update before going on the Dyno to find the result !

I finally put myself back into it and after 4 try , I finally got to screw into the 4th hole that was giving me a hard time !
I was afraid of making a hole by grinding into the wall since the screw is right touching it !

so yeah everything is done and ready *hose included*

total time spend on the project 10-11 hours
I could easily cut the time by more than half of what it took me now ! hehe
since having to install and remove the intake manifold pretty much took half of the time.

the 4th hole ( hardest one )

same one different view

testing with a washer

top view

Bolts used

Completed Unit !!!!!!!

m4a1mustang · 11-25-2010, 08:16 PM

Awesome.

Baer383 · 11-25-2010, 08:51 PM

I'm anxious to see the out come of the dyno results.

pokeyl · 11-30-2010, 10:32 AM

Are the runners longer in the 350/m370 intake or the total volume larger? is the right side feeding only the 3 cylinders amd the same for the left?

Megan370z · 11-30-2010, 11:33 AM

Quote:

Originally Posted by pokeyl

Are the runners longer in the 350/m370 intake or the total volume larger? is the right side feeding only the 3 cylinders amd the same for the left?

the 350zHR/M370 does have longer runner than the 370zvhr manifold

as for the size , the runner entry of the 350zHR/M370 seem bigger than the 370zvhr and also the curved lip is more suited in the 350zHR for the runner size

from my very limited experience and what I have read on the M370 from MotorDyne.
The 350HR manifold should be superior (haven't been on the dyno myself yet) on the VQ37 platform

Volume ? I have no idea ! I haven't tested it but should be very close to each other.

Air Feeding , well there is 6 runner in the Intake manifold and 3 of each side is positioned toward the Throttle entry ,, the rear and middle runner have more of an direct air pickup than the front one.
There isn't a wall separation from the left to right , the air is free to move everywhere

pokeyl · 12-01-2010, 12:02 AM

Quote:

Originally Posted by Megan370z

the 350zHR/M370 does have longer runner than the 370zvhr manifold

as for the size , the runner entry of the 350zHR/M370 seem bigger than the 370zvhr and also the curved lip is more suited in the 350zHR for the runner size

from my very limited experience and what I have read on the M370 from MotorDyne.
The 350HR manifold should be superior (haven't been on the dyno myself yet) on the VQ37 platform

Volume ? I have no idea ! I haven't tested it but should be very close to each other.

Air Feeding , well there is 6 runner in the Intake manifold and 3 of each side is positioned toward the Throttle entry ,, the rear and middle runner have more of an direct air pickup than the front one.
There isn't a wall separation from the left to right , the air is free to move everywhere

I have a manufacturing background and it looks like you could punch a larger hole centered on the new bolt location and Epoxy in some nylon dowels, with the bolt hole on the center and under-cut in the middle. If you dyno proves out. I'll see if you could make up a kit or something.

ClemsonWill · 11-30-2010, 10:33 AM

Great job! When are you dyno testing it?

Megan370z · 11-30-2010, 11:19 AM

Quote:

Originally Posted by ClemsonWill

Great job! When are you dyno testing it?

It was planned for this week but the guy that borrowed the dyno got an accident and is not able to bring the dyno back , its gonna have to wait till next week

kevin8086 · 11-30-2010, 06:05 PM

sub

Megan370z · 04-14-2012, 08:45 AM

im still using it and havent got any problem

we discorvred the reason about the big dip at the top end ,,
it was the result of a bad cracked flywheel that was making the knock sensor unhappy and then they were pulling timing badly..

since the repair ,, that drop fo 40whp never came back

Mandingo · 12-20-2012, 08:21 PM

How did you get all the plastic dust and shavings out of the manifold? Air compressor? Shop vac?

I'm doing something similar and I noticed there are a lot of places where the little particles can hide and get sucked into the engine later. As you know, the the entire inside of the manifold is open and has little nooks and crannies everywhere.

Megan370z · 12-20-2012, 08:27 PM

Quote:

Originally Posted by Mandingo

How did you get all the plastic dust and shavings out of the manifold? Air compressor? Shop vac?

I'm doing something similar and I noticed there are a lot of places where the little particles can hide and get sucked into the engine later. As you know, the the entire inside of the manifold is open and has little nooks and crannies everywhere.

water pressure has done a very good job cleaning everything
you can also minimize the dust/particles going in by putting some towel in each runner

11-04-2010, 07:51 PM	#2 (permalink)
Xan A True Z Fanatic Join Date: Jan 2010 Location: MA Posts:99999999999999 Posts: 3,301 Drives: 370Z 40th Aniversary Rep Power: 25	Did you get it on, sealed up and running? __________________

11-25-2010, 07:04 PM	#4 (permalink)
Megan370z A True Z Fanatic Join Date: Oct 2009 Location: Canada Posts: 1,156 Drives: 370z Rep Power: 24	another Update before going on the Dyno to find the result ! I finally put myself back into it and after 4 try , I finally got to screw into the 4th hole that was giving me a hard time ! I was afraid of making a hole by grinding into the wall since the screw is right touching it ! so yeah everything is done and ready hose included total time spend on the project 10-11 hours I could easily cut the time by more than half of what it took me now ! hehe since having to install and remove the intake manifold pretty much took half of the time. the 4th hole ( hardest one ) same one different view testing with a washer top view Bolts used Completed Unit !!!!!!! Last edited by Megan370z; 01-07-2011 at 12:14 PM.

11-25-2010, 08:16 PM	#5 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Awesome. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

11-25-2010, 08:51 PM	#6 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	I'm anxious to see the out come of the dyno results. __________________ 2013 ZL1 754 rwhp 747 rwtq

11-30-2010, 10:33 AM	#10 (permalink)
ClemsonWill A True Z Fanatic Join Date: Jul 2010 Location: Charleston, SC Posts: 12,045 Drives: a Civic VP! Rep Power: 445	Great job! When are you dyno testing it? __________________ Slightly modded

04-14-2012, 08:31 AM	#1 (permalink)
nitrousfedman Base Member Join Date: Apr 2012 Location: winchester Posts: 1 Drives: 350z, infinity G35 Rep Power: 13	How did the intake swap work out for you. I have found a stillin supercharger for a 370z, for a good price thinking about buying and trying the same thing. How did the finished product work out for you.

11-30-2010, 10:32 AM	#7 (permalink)
pokeyl Track Member Join Date: Nov 2010 Location: DFS Posts: 900 Drives: ??? Rep Power: 55	Are the runners longer in the 350/m370 intake or the total volume larger? is the right side feeding only the 3 cylinders amd the same for the left?

11-30-2010, 06:05 PM	#12 (permalink)
kevin8086 Base Member Join Date: Oct 2010 Location: Austin Posts: 228 Drives: 09 370Z Sport Rep Power: 15	sub

04-14-2012, 08:45 AM	#13 (permalink)
Megan370z A True Z Fanatic Join Date: Oct 2009 Location: Canada Posts: 1,156 Drives: 370z Rep Power: 24	im still using it and havent got any problem we discorvred the reason about the big dip at the top end ,, it was the result of a bad cracked flywheel that was making the knock sensor unhappy and then they were pulling timing badly.. since the repair ,, that drop fo 40whp never came back __________________ Megan Journal Click Me ....................One Man Team Motorsport Click Me

12-20-2012, 08:21 PM	#14 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	How did you get all the plastic dust and shavings out of the manifold? Air compressor? Shop vac? I'm doing something similar and I noticed there are a lot of places where the little particles can hide and get sucked into the engine later. As you know, the the entire inside of the manifold is open and has little nooks and crannies everywhere. __________________ some mods

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