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List of things you will need for HR pistons in a VQ35DE

Old Feb 12, 2009 | 02:50 PM
  #41  
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Originally Posted by MDeezy
for the HR HG to work, what modifications are needed? Does whole need to be made on the left side similar to the DE HG's?
It is documented in the link I just posted and in this thread:

http://my350z.com/forum/na-builds/40...ard-build.html


Old Feb 12, 2009 | 03:25 PM
  #42  
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Originally Posted by MDeezy
point taken. but if its anything more than a year later I'd have more peace of mind putting new ones in... but thats just me.



You've installed pistons bearing etc before in a vq35? or 30? (dave)
You mean the connecting rod bearings?

yes i have
Old Feb 12, 2009 | 08:40 PM
  #43  
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I meant to put commas there, meaning those various parts.

I mainly ask because i'm curious of the difficulty. I am no stranger to taking a motor apart, fsm, and torque sequences. I also know when assembling there are certain clearances to watch out for. I wouldn't mind doing it myself but definately not at the risk of the motor or of it being out of spec. Something are better left to the experienced to do... like welding...
Old Feb 12, 2009 | 09:06 PM
  #44  
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I will be completing all of my build (pistons/cams/bearings/rods etc) myself minus the machining. Any specific question? I'll try to help to the best of my knowledge.
Old Feb 12, 2009 | 09:30 PM
  #45  
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which tools/devices are needed when installing new pistons,rings and bearing. I know clearences need to be in a certain spec so what device is needed for that? I know a tool to compress the piston rings while installing is needed.

I guess what tools are needed for making sure clearences are in spec when assembling the bottom end?
Old Feb 12, 2009 | 09:40 PM
  #46  
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I have one of these somewhere...its good for checking the piston rings and piston to cylinder wall, Feeler gauge

http://en.wikipedia.org/wiki/Feeler_gauge

and forget the name of the tool to spread the rings to slide them on...but neither of these tools are expensive.

The part I was hated was piston pin snap on, and doing the valve springs...i hated doing it, cause I don't have great feeling in my hands and I shake alot
Old Feb 12, 2009 | 09:44 PM
  #47  
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I do have a feeler gauge. I used it to check a block of a previous vq35de to check for warping on the block.

snap pliers are needed for when installing piston rods.
Old Feb 12, 2009 | 09:49 PM
  #48  
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Originally Posted by MDeezy
I do have a feeler gauge. I used it to check a block of a previous vq35de to check for warping on the block.

snap pliers are needed for when installing piston rods.
yeah, I have issues with my hands every know and then and I can't squeeze things...runs in the family...
Old Feb 13, 2009 | 09:01 AM
  #49  
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probably better to have a shop do it anyway, if .20 over is the best option then they'd need to do some machining to make sure they fit. might as well let them finish the whole rotating assembly

going to do some price hunting and calculating... I have strong reason to believe my motor is telling me there might not be a long life left in her...
Old Feb 13, 2009 | 03:53 PM
  #50  
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Originally Posted by MDeezy
probably better to have a shop do it anyway, if .20 over is the best option then they'd need to do some machining to make sure they fit. might as well let them finish the whole rotating assembly

going to do some price hunting and calculating... I have strong reason to believe my motor is telling me there might not be a long life left in her...
it easier for them to balance it too.

and why do you say that.
Old Feb 13, 2009 | 03:59 PM
  #51  
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why do I say what?
Old Feb 13, 2009 | 04:02 PM
  #52  
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Originally Posted by MDeezy
probably better to have a shop do it anyway, if .20 over is the best option then they'd need to do some machining to make sure they fit. might as well let them finish the whole rotating assembly

going to do some price hunting and calculating... I have strong reason to believe my motor is telling me there might not be a long life left in her...
let me know what you find out...
Old Feb 13, 2009 | 04:05 PM
  #53  
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I'll keep you updated.

my guess it will cost about the same as doing a vq35 swap from scratch.
Old Feb 13, 2009 | 04:08 PM
  #54  
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Originally Posted by MDeezy
I'll keep you updated.

my guess it will cost about the same as doing a vq35 swap from scratch.
.....
Old Feb 13, 2009 | 04:11 PM
  #55  
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unless you cut corners and say re-used your current rods, but if your going to do the build might as well do it right so it will last. You'd definately want to have that utec with a setup like this... I believe 11.4~11.6 CR is what you'd be left with after this is complete and assembled (based on what turbos13hatch said/calculated)
Old Feb 13, 2009 | 04:17 PM
  #56  
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ok.. this is turning into "since your are in there and it is stripped down, might as well".....



NOOOOOOOOOOOO... i have no budget for that.. I am talking bare minimum...
Old Feb 13, 2009 | 04:23 PM
  #57  
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we'll you have your budget and do your shopping. Certain things you'll have to get if your going to do this right.

There are a lot of extra things you could do "since your in there" that I didnt mention as it would cost a lot more. It would be very beneficial but not completely necessary (knife edging comes to mind and blue printing).

know your budget, do your shopping and see what total you come to. If you come under budget good, if you go over see if you can find a way to make it happen or maybe go another route.

Plan B for you could be cams/HR valve springs/retainers, + utec and 7000-7500limit (factor depending). After a semi aggressive tune you should definitely feel a nice gain
Old Feb 13, 2009 | 04:31 PM
  #58  
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Originally Posted by MDeezy
we'll you have your budget and do your shopping. Certain things you'll have to get if your going to do this right.

There are a lot of extra things you could do "since your in there" that I didnt mention as it would cost a lot more. It would be very beneficial but not completely necessary (knife edging comes to mind and blue printing).

know your budget, do your shopping and see what total you come to. If you come under budget good, if you go over see if you can find a way to make it happen or maybe go another route.

Plan B for you could be cams/HR valve springs/retainers, + utec and 7000-7500limit (factor depending). After a semi aggressive tune you should definitely feel a nice gain

a modified plan "b" is in the works now...

as for the ther things that you could have suggested... yes i know.. gotta pay to play.....
Old Feb 13, 2009 | 04:34 PM
  #59  
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with you having such a youthful and (hopefully) in good shape motor, it makes it a little more difficult to justify doing a build like this outside of just wanting to have it.

but as for me... I know my motor has its days number so I could either just buy another motor and be done meh... or go with this build. I already have 2 spare blocks, cranks,heads, etc...
Old Feb 13, 2009 | 04:38 PM
  #60  
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Originally Posted by MDeezy
with you having such a youthful and (hopefully) in good shape motor, it makes it a little more difficult to justify doing a build like this outside of just wanting to have it.

but as for me... I know my motor has its days number so I could either just buy another motor and be done meh... or go with this build. I already have 2 spare blocks, cranks,heads, etc...
just went over 83k today..

and yes, you are the parts masterbatorwhere did you think i was getting some of this stuff from??
Old Feb 13, 2009 | 04:43 PM
  #61  
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83k wow... on an 05? wow...

True... that can help with the cost and down time. get a block/crank heads from me and get it fully built so we just take a day to pull the old and drop in the new.

I wonder if a machine show would include polishing the crank and such with the cost of labor..
Old Feb 14, 2009 | 12:03 PM
  #62  
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He doesn't have to do the rods...the vq35 rods are pretty strong especially for a High compression NA build.

Hr pistons
HR head bolts
HR rod bolts
gaskets
cams
HR valve springs/shims
bearings


thats all he needs to buy, besides paying the balancing part
and a High stall TC if he so felt so

otherwise everything else is good to go for NA...he's not going to go out drag racing everyday...
Old Feb 14, 2009 | 12:37 PM
  #63  
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Nismology stated the HR head bolts wont work, would like to know why they wouldnt work or if someone can explain why then will work.

HR rods... turbos13hatche stated they wouldnt work. its in the thread stickied at the top of the all motor section

HR headgasket can work with some modification, and would be advantageous to use but its not needed, same with Cams, valve springs, etc.

it would be beneficial to the build but not needed.

HR pistons, and Valve springs and sims, then DE the rest.Cost to benefit wise might be better to DE everything, unless the HR is basically the same price but offer better protection then the choice is easy. for Jeff doing this built he wants a high comp build, but cost is a worry. which isnt the best combo as we all know when doing a build of any kind you cheap out too much and it can end up costing more.
Old Feb 14, 2009 | 01:37 PM
  #64  
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Originally Posted by MDeezy
Nismology stated the HR head bolts wont work, would like to know why they wouldnt work or if someone can explain why then will work.
http://forums.maxima.org/6364348-post26.html


A cheap alternative to aftermarket cams are revup cams. That's what I'm going with until I can afford to buy real ones.
Old Feb 14, 2009 | 01:40 PM
  #65  
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unless you can find some Debuloz Cams ...
Old Feb 14, 2009 | 01:45 PM
  #66  
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Originally Posted by redmaxpa007
unless you can find some Debuloz Cams ...
I'm talking $125 vs $500-600. Up to you...

Last edited by nismology; Feb 14, 2009 at 01:56 PM.
Old Feb 14, 2009 | 01:47 PM
  #67  
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Originally Posted by nismology
I'm talking $125 vs $500-600. Up to you...
i was talking about the $1400 vs $500-600


but $125 is even better....
Old Feb 14, 2009 | 05:48 PM
  #68  
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damn I forgot about rev up cams
Going to see if I can find some... should be able to knock it out in about 4hrs...
Old Feb 14, 2009 | 09:18 PM
  #69  
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Man someday I need to come back and build 3.5....

don't you say it nismology
Old Feb 14, 2009 | 09:23 PM
  #70  
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you say that after selling your max


come back with a 350z/g35/370/g37
Old Mar 15, 2009 | 02:17 AM
  #71  
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Just a few observations..

You do know that you have to fly cut the tops/edges of the HR pistons, so they clear the cylinder head quench pads, right? Check out my sticky at the top of this section for more details..

Also, I'd stay away from those knock-off cams.. I've had customers complain about bad grinds (lobes not ground properly) giving them crappy performance, poor idle, and such..

Travis
Old Mar 18, 2009 | 06:43 AM
  #72  
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Originally Posted by TurboS13Hatch
Just a few observations..

Also, I'd stay away from those knock-off cams.. I've had customers complain about bad grinds (lobes not ground properly) giving them crappy performance, poor idle, and such..

Travis
Is there anybody here that has experienced any of these symptoms with these cams installed? I know a couple people have them, or have had them.
Old Mar 18, 2009 | 07:05 AM
  #73  
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i have a set ready to be installed...
Old Mar 18, 2009 | 07:12 AM
  #74  
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Until now, I had only heard good things about the knock off cams...when and to whom did these problems arise?
Old Mar 18, 2009 | 07:22 AM
  #75  
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curious also. always heard good things so far...
Old Mar 18, 2009 | 08:41 PM
  #76  
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My 3.5 ebay cams are still working OK ... ???
Old Mar 18, 2009 | 08:44 PM
  #77  
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Originally Posted by grey99max
My 3.5 ebay cams are still working OK ... ???
knock on wood
Old Mar 20, 2009 | 01:06 AM
  #78  
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A car that Tilley installed a set in (Which is now at my shop), didn't run properly with the "JDM" cams.. I installed a set in a customer's VQ35, running on a 5th gen ECU with CVTC, and the car had idling issues, along with odd compression numbers. We double checked the cam timing.. even pulled it apart and reset it, just to be safe. Same thing..

I've built TONS of engines, and I know that we were spot on.. So, I sent the cams to Comp, to be checked out on thier cam doctor. The lobes were not ground properly.. The ramp angles were all dissimilar to one another.. and some were a few degrees off from the others..

Travis
Old Mar 20, 2009 | 06:36 AM
  #79  
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Originally Posted by mowgli29
knock on wood
I'm gonna upgrade to Cosworth ZK2 cams anyway.... They shipped yesterday.
Old Mar 20, 2009 | 07:10 AM
  #80  
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Thanks Travis. This is the first I've ever heard of these deluboz cams getting a bad review.

I am going to install the same set of cams in my engine after reading the countless amount of great reviews I've read in the Maxima and Altima community. I ended up getting my cams for only $400 shipped due to a sale deluboz was doing and a cashback program MSN was doing with ebay. I hope they work.

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