greddy twin build... - Page 3 - MY350Z.COM - Nissan 350Z and 370Z Forum Discussion



Forced Induction Turbochargers and Superchargers..Got Boost?

Reply
 
 
 
Thread Tools Search this Thread
Old 05-10-2013, 05:50 PM   #41
OldManZ350
Registered User
iTrader: (23)
 
OldManZ350's Avatar
 
Join Date: Nov 2003
Location: Florida
Posts: 1,992
Thanked 56 Times in 51 Posts
Default

Moderator, I think you need to read a little more.

I have a VQ35DE, and many others like me.


Quote:
Originally Posted by SmoothZ View Post
So are you running on a stock block? I've always read that the DE engine can handle up to 8 lbs and pump out no more than 400hp before one has to start upgrading internals and such.
OldManZ350 is offline   Reply With Quote
Old 05-10-2013, 05:57 PM   #42
SmoothZ
Senior Super Moderator
MY350Z.COM
iTrader: (13)
 
SmoothZ's Avatar
 
Join Date: Aug 2004
Location: Twin Cities, MN
Posts: 26,920
Thanked 1,581 Times in 1,093 Posts
Default

Quote:
Originally Posted by OldManZ350 View Post
Moderator, I think you need to read a little more.

I have a VQ35DE, and many others like me.
Hey, thanks for the tip!
SmoothZ is offline   Reply With Quote
Old 05-12-2013, 06:47 PM   #43
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

re-mounted my scavenging pumps to accommodate it's lines/oil return lines didnt know exactly how to mount this but did a little welding to my fab'd up radiator arms and I think it worked out well. Getting the turbo jackets tomorrow and I can wrap up the driver side bank.

I believe I'll be re-tapping the oil supply fitting for the passenger side … I don't want to strip the threads of the CHRA…but I got a call into the turbo shop...

bealljk is offline   Reply With Quote
Old 05-16-2013, 09:54 AM   #44
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

ahhh…good times…turbo jackets love…



bealljk is offline   Reply With Quote
Old 05-20-2013, 11:07 AM   #45
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

got the blower in, turbo blanket on - is def rubbing on the steering shaft…we'll see how long it stays on…Not sure how concerned I should be about this...



The hardest part of the weekend was getting the engine mount back on and bolted in…the front bolts were obviously easy but the rear bolts were most difficult…the top was just a PITA but manageable with some patience and a 9/16th wrench...the bottom was really really difficult…I chopped about 3/8th inch off the rear bolts to allow them to fit. I have some inexpensive wrenches and I cut my 14mm in half to put the rear bottom bolt in from the underside of the car…spec is 42 ft'lbs and maybe got half that on the rear bolts…




I ran the duct from the drivers side blower to it's spot on the intercooler…everything seems like it'll line up. I would like to have these pieces welded so that I don't have to deal with hose clamps and silicone connectors...

Lastly, oil cooler #2 came back from 3R, some simple welding so I can attach a bracket…I believe I have enough SB hose to where I can mount this below the driver's side headlight…I need a few more AN fittings, but I can pick those up along the way.
bealljk is offline   Reply With Quote
Old 05-20-2013, 01:06 PM   #46
nathanwl2004
Registered User
iTrader: (2)
 
nathanwl2004's Avatar
 
Join Date: Jul 2005
Location: charlotte ,nc
Posts: 738
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Not sure if anyone answered this already but think of it this way. Heat obviously always moves from hot things to cold things through some process of heat transfer. So you are either dumping the heat from the engine into either the fluid in the engine and radiator or you are dumping that heat to the air flowing around the engine. The coefficient of thermal conductivity of air is roughly .024 where as the coefficient of thermal conductivity of water is roughly .58 and the coefficient of thermal conductivity for engine oil is roughly .15 (depending on you coolant and oil). Point being you are better off dumping heat through these mediums than through plain air. Also lowering intake air temps lowers the likelyhood of engine destroying knock at otherwise identical conditions. This is why when you tough some mtals they feel colder than the air around you. The metals are transfering (stealing) your bodies heat at a faster rate than the air because of their higher thermal conductivity.
nathanwl2004 is offline   Reply With Quote
Old 05-20-2013, 04:19 PM   #47
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Quote:
Originally Posted by nathanwl2004 View Post
So you are either dumping the heat from the engine into either the fluid in the engine and radiator or you are dumping that heat to the air flowing around the engine.
great analysis - thank you for taking the time…I couldnt agree with you more on transferring heat energy to coolant and oil as a primary method. Whats the harm in having passive air flow move through the engine compartment evacuating heated air?

Quote:
Originally Posted by nathanwl2004 View Post
Also lowering intake air temps lowers the likelyhood of engine destroying knock at otherwise identical conditions.
It'll be a lower-tier task but I would like to extend the duct between the compressor and air-filter…push it towards the front of the car where it can gather cooler air…I'll have a better idea of what I can do once the radiator and IC are in their final positions.

Last edited by bealljk; 05-20-2013 at 04:20 PM.
bealljk is offline   Reply With Quote
Old 05-21-2013, 07:51 PM   #48
nathanwl2004
Registered User
iTrader: (2)
 
nathanwl2004's Avatar
 
Join Date: Jul 2005
Location: charlotte ,nc
Posts: 738
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by bealljk View Post
great analysis - thank you for taking the time…I couldnt agree with you more on transferring heat energy to coolant and oil as a primary method. Whats the harm in having passive air flow move through the engine compartment evacuating heated air?


there isn't really any harm, so far as I can tell (maybe some lift or drag effects but that's hard to say for sure without CFD), so long as that air is not flowing through the engine bay at the expense of the volume of air flowing through the intercooler, radiator, and oil cooler.

air will follow through the path of least resistance. some of the air flows through the radiator, IC and oil cooler and some already goes to the engine bay. the engine bay is already the path of least resistance because it doesn't have to be crammed through a radiator. if you open the bumper up enough you increase this path of least resistance and allow more and more air to bypass the radiator and go to the engine bay, effectively reducing the air flow through radiator,IC, etc. if you can enlarge the inlet and the funnel the air through the intercooler and radiator you will see greater benefits than allowing that air to cool the motor externally.

you can visualize it by saying you have a crowd of 30 people trying to get to the top of a building. they can either take 5 flights of stairs or take an elevator that only holds on person. the elevator is easier but it can only take 1 person, so most people, rather than waiting around for the elevator will take the stairs.if you increase the crowd to 35 but increase the elevator capacity to 10 people per trip, although you increased the crowd size, ultimately fewer people will use the stairs. funneling the air as I said earlier would be like increasing the crowd size but putting a out of order sign on the elevator.





Quote:
Originally Posted by bealljk View Post
It'll be a lower-tier task but I would like to extend the duct between the compressor and air-filter…push it towards the front of the car where it can gather cooler air…I'll have a better idea of what I can do once the radiator and IC are in their final positions.
while you might see some reduction in air temperature going into the turbo I don't imagine much more that a few degrees. the real issue though is when the air gets to the turbo because when air is compressed it heats up. The intercooler is much more effective at reducing temperatures and it cools the air after it has been compressed. ultimately what this means is that while moving the piping out slightly will probably reduce the temperature a small bit, the intercooler is a much more effective tool for shedding heat from the intake charge.

Last edited by nathanwl2004; 05-21-2013 at 07:59 PM.
nathanwl2004 is offline   Reply With Quote
Old 05-21-2013, 08:30 PM   #49
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Quote:
Originally Posted by nathanwl2004 View Post
if you open the bumper up enough you increase this path of least resistance
it's a little further down the road and I'll have more of an idea of bumper/IC/radiator setup … I mentioned this above but creating a shroud that funnels air flow through the IC/Rad combo - I'm $35 deep into that bumper cover - if it ***** the bed then I'm not too worried...

Quote:
Originally Posted by nathanwl2004 View Post
ultimately what this means is that while moving the piping out slightly will probably reduce the temperature a small bit, the intercooler is a much more effective tool for shedding heat from the intake charge.
I have 10" to 12"(front to back) between the back of the radiator and front of the engine - I would try to extend the intakes into this area and if I can drop it 6" to 8" I believe I can place it below the headlights in the smaller openings…we'll see…
bealljk is offline   Reply With Quote
Old 05-24-2013, 11:57 AM   #50
nathanwl2004
Registered User
iTrader: (2)
 
nathanwl2004's Avatar
 
Join Date: Jul 2005
Location: charlotte ,nc
Posts: 738
Thanks: 0
Thanked 0 Times in 0 Posts
Default

in any event, I'll be interested to see how it turns out. how much boost do you plan to push?
nathanwl2004 is offline   Reply With Quote
Old 05-24-2013, 06:29 PM   #51
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Quote:
Originally Posted by nathanwl2004 View Post
in any event, I'll be interested to see how it turns out. how much boost do you plan to push?
I have no idea…

my plan from the couch I sit on right now is to get everything built and reviewed by someone that knows more than I do. I currently have a tune in the haltech that should hold 12psi…which should be good enough for me to get to a shop where I can get a better interim tune…my final tune will come in August - the local nissan forum is flying in the Specialty Z guys to tune.

I would like to get to 600whp, block holds 650…I believe thats going to take 22psi, maybe 24psi...
bealljk is offline   Reply With Quote
Old 05-28-2013, 08:34 PM   #52
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Got the passenger side turbo assembly on…much easier than the drivers side. Laid out the intercooler duct work and it looks like I am a little off and will need a few extensions on the ducts to connect the compressors and the intercooler.

Name:  null_zps03592c39.jpg
Views: 8
Size:  85.5 KB

dropped the engine back in place and will tighten everything down over the next few days.
bealljk is offline   Reply With Quote
Old 06-01-2013, 06:40 PM   #53
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

back on it…duct work is in but I am not 100% sure where I'm going. Finished fab'ing up the front bracket to hold the intercooler and the radiator.
Name:  null_zpsab6250cd.jpg
Views: 9
Size:  131.3 KB

Name:  null_zps2fff7c41.jpg
Views: 8
Size:  142.5 KB

I will have the angles welded onto the intercooler and radiator - intercooler as pictured will mount to the front of the bracket via angle that will bolt into the bracket - both top and bottom. The radiator wil have similar angles welded to the sides. The radiator will drop in from above and only bolt in on the top. Once these are in I will have a better idea of my final duct work.

Name:  null_zpsefb73a1c.jpg
Views: 8
Size:  166.9 KB

Name:  null_zpsdb31bd87.jpg
Views: 8
Size:  158.5 KB
bealljk is offline   Reply With Quote
Old 06-01-2013, 07:58 PM   #54
J rad
Registered User
iTrader: (18)
 
Join Date: Jun 2008
Location: Marble Falls, Texas
Posts: 629
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Neat.
J rad is offline   Reply With Quote
Old 06-02-2013, 09:07 AM   #55
KingBaby
Hardest Setting
iTrader: (3)
 
KingBaby's Avatar
 
Join Date: Feb 2008
Location: MexiCali dodging potholes
Posts: 13,352
Thanked 97 Times in 76 Posts
Default

After that last picture, I need a Samuel Adam!

Looks like fun, and I'm sure gonna run like a beast!

In for more
KingBaby is offline   Reply With Quote
Old 06-03-2013, 07:16 PM   #56
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Quote:
Originally Posted by KingBaby View Post
I need a Samuel Adam!
plenty of Sam and Bud Light consumed thus far…

I had to disconnect the power steering cooler and, although I drained it, it leaked all over the place and that box(which had my PS pump in it) was the closest thing I could grab.

Sending the IC and radiator off tomorrow to get mounting angles welded on.



LOOKING FOR SPARE / SCRAP / MISC INTERCOOLING PIPE - 2.75" AND 2" (See turbo/nitrous/SC WTB section)

Last edited by bealljk; 06-03-2013 at 08:13 PM.
bealljk is offline   Reply With Quote
Old 06-05-2013, 06:09 PM   #57
350Z Project X
Registered User
iTrader: (2)
 
Join Date: Jul 2011
Location: Los Angeles, CA
Posts: 502
Thanked 4 Times in 3 Posts
Default

Quote:
Originally Posted by KingBaby View Post
After that last picture, I need a Samuel Adam!

Looks like fun, and I'm sure gonna run like a beast!

In for more
bought the variety pack last weekend. lol. o wait I think I still have some in the fridge im gonna get one now

and im subd in for this build. Ive always wanted to put my own turbo setup up in when I can finally afford it. lol. There is just a much greater sense of pride for it and I love working on my car. and I also dont trust a shop after hearing how NismoK's shop experience went.

Last edited by 350Z Project X; 06-05-2013 at 06:11 PM.
350Z Project X is offline   Reply With Quote
Old 06-11-2013, 06:50 PM   #58
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Quote:
Originally Posted by 350Z Project X View Post
There is just a much greater sense of pride for it and I love working on my car
absolutely…I love know that I'm the one assembly everything…and if I'm tired or 'not into it' I just clean up and call it a night and may not get back on it for a few days…I'm in no rush…


got the radiator and IC back from the shop this afternoon…everything looked good…the mock-up worked well and everything slides as anticipated…

Name:  null_zpse818a5cd.jpg
Views: 7
Size:  88.9 KB


Name:  null_zpsb40690e1.jpg
Views: 8
Size:  98.5 KB
Name:  null_zps56202d17.jpg
Views: 8
Size:  99.3 KB

Name:  null_zps38f10336.jpg
Views: 8
Size:  83.2 KB

Name:  null_zps6843b1f3.jpg
Views: 9
Size:  89.4 KB

I'll drill out and bolt in the intercooler next…thinking of putting 5 or 6 small nuts & bolts on both the top and bottom of the intercooler and then maybe 3 on each side of the radiator.

Also picked up some Tbolt clamps and some extra intercooler pipe and I am going to mock up what I need to get the ic plumb'd-up...

Last edited by bealljk; 06-11-2013 at 06:52 PM.
bealljk is offline   Reply With Quote
Old 06-19-2013, 06:05 PM   #59
bealljk
Registered User
Thread Starter
iTrader: (13)
 
Join Date: Apr 2010
Location: col
Posts: 2,267
Thanked 97 Times in 91 Posts
Default

Name:  null_zps3747d664.jpg
Views: 8
Size:  141.6 KB

Name:  null_zps4ac4ad45.jpg
Views: 8
Size:  156.2 KB

nothing significant but got the intercooler intake all plumbed up…not exactly happy with how many couplers I have but I had to do a semi-custom plumbing job due to the location of the IC. The only thing I can think is to have it welding exactly where it needs to be after I get the car running.

looked at the charge end of the IC and will also need to do a little custom work…
choice A - run a 2.75" extension off the 2.75" 90degree angle to meet the mid-pipe
choice B - run a 3" extension off the mid-pipe
choice C - run the mid pipe through the OEM intake port and down to the IC
I am leaning towards choice B (or possibly choice C) because I believe the charge pipe will rub against my wheel/tire. If I extend the 3" pipe and modify the headlight bracket I will gain more room and the pipe can be tucked between the head light and the chassis rail…

Name:  null_zps0b1ff41d.jpg
Views: 8
Size:  136.6 KB

Name:  df1b3863-b8eb-4a50-90a4-c1efcf364f8a_zps0358f336.jpg
Views: 7
Size:  100.1 KB

this piece was hacked up for my supercharger install back in 2006 so if it ***** the bed I will find a salvaged replacement bracket and try again.
bealljk is offline   Reply With Quote
Old 06-20-2013, 12:23 PM   #60
str8dum1
Registered User
iTrader: (11)
 
Join Date: Oct 2007
Location: raleigh-wood NC
Posts: 8,806
Thanks: 0
Thanked 6 Times in 6 Posts
Default

why not just cut a hole in the sheet metal on the bracket and route thru there?
str8dum1 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
~Greddy Revolution Exhaust 03-08 350Z $1165 SHIPPED!!!~ [email protected] Engine 31 12-21-2016 09:32 AM
Finally boosting the z gc350z03 Forced Induction 114 10-28-2016 05:00 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -8. The time now is 11:32 PM.


Copyright ©2002 - 2017, MY350Z.COM All Rights Reserved.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: