TwinTurbo.NET: Nissan 300ZX forum - I hate you. ;)
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Subject I hate you. ;)
     
Posted by ni[X]it on June 19, 2006 at 4:04 PM
  This message has been viewed 245 times.
     
In Reply To see inside posted by sfarrah on June 19, 2006 at 03:49 PM
     
Message vast ramblings begin here;

:- plenum design; single or dual.
:Can you detail the pros and cons for each along with the
:different costs involved? I have a general idea of one vs the other, but a detailed discussion on the topic would likely be appreciated by many.


Dual Plenum = what we have now. Other then the runner length of 18" each, I don't see a real benefit.
Single Plenum = here's the issue...I can't maintain 18" of runner length. I've tried and tried to fit a 'snail' designed intake (ala LS1/LS6), but it wont fit under the hood. No way, no how. But giving us ONE plenum to draw our air from will, I believe, allow ALL cyclinders to breath the same amount of air, whether a turbo is down or not, or any other unfortunate circumstances. I also firmly believe a properly designed plenum (unlike or stock twin plenums), will prevent running rediculously rich in #1 and #2, while being on the edge of lean on #5 and #6 as we have now.

:- throttle body design; single or dual.

This really boils down to complexity of install and function. Do I want two throttle bodies? Do I want one throttle body? How will i get air to a single TB from say an single core FMIC/dual core FMIC, etc. I want this to have as little impact on the rest of the system as possible. That would allow the end user to experiment with SMICs, Single core/Dual core FMICs, etc.

:- intake materials (cast/drawn/composite)
:What are the issues here? Cost of prodcution, heat transfer, aesthetics, durability etc? I don't care what it looks like if it performs better than stock and the gains can be cost justified.

Durability is #1, Cost of production is #2, Aesthetics is #3, Heat transfer (soaking) is #4.
I would never want to put my name on something that has 40 feet of hoses sticking out of a turd... having some polish (not bernie) to it would be nice.

:- level of mod required; bolt on to extensive.
:depends on the gains as to how extensive I'd be willing to get into the modification

All I see right now as being 'difficult', is having to relocated the IAA to the firewall using an adapter plate with integral vacuum feed. The rest is a very simple vacuum gallery

:- PVC on or off?
:Not happy with my current catch can situation right now so a system that will vent pressure and reroute oil to the pan is what I'd prefer.

this one may be the crux of the deal. I want to run a proper PVC system for the Z32, based on existing Turbo Applications. I want to mimic what 18Wheelers have, but their PVC system, while very boost friendly, is also quite cumbersome. Since we have dual PVCs, it only doubles the headache. This is still TBD. Woody/Guap and DamonZ seem to have come to a happy medium from what I've heard/read.

Thanks!


Petz #3
     
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