300zx Na performance

The Nissan 300ZX (Z32) general community discussion forum
HotCarl300zx
Posts: 14
Joined: Sun Jun 02, 2013 12:55 pm
Car: 300zx Na
300zx TT

Post

Hey guys new to forms, I got a 90 300zx NA that i want to get so good hp out of, what parts should i get and what should i do, i have a 300zx TT so dont say turbo it i want this on to be Naturally aspirated,
the motor is out of the car so anything go
things i was thinking on getting are
ash spec ecu
370cc injectors
Z1 headers
test pipes
HKS exhaust
K&N air filter
UD pulleys
One piece drive shaft


User avatar
Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

Post

You're never gonna max the stock injectors, so no need for the 370cc's. Everything else MAY get you to 190-200 whp. That's about what the N/A maxes out at, sadly.

z32loverboy
Posts: 516
Joined: Tue Mar 22, 2011 6:05 pm
Car: 1990 300zx CRP N/A 5 Speed (wreaked, now a shell) SOLD

1993 Slicktop CRP N/A 5 Speed w/ '90 built N/A motor and interior

1958 Ford f-100 straight-body (Grandaddies truck, resto-project)
Location: Nashville, TN

Post

this^

If you really wanted to go hardcore on it you could swap TT heads on it, do some major port/polish work, cams, port match everything... ect..., bore the motor out for bigger high compression pistons, follow bisimoto's lead and fuel match each cylinder with a custom tune so each cylinder is burning the exact same amount of fuel and has the same fuel/air ratio, full exhaust, weight reduction and everything else you listed. I think that's about it that you can do.. other than somehow shave weight from your rotating mass weight.

User avatar
300ZXttZMAN
Posts: 6800
Joined: Mon Nov 22, 2010 4:07 pm
Car: 1990 Nissan 300ZX TT 5spd pearl white

DD: 2008 Nissan Frontier NISMO pkg 4x4 Crew Cab
Location: Sulphur, LA 70665
Contact:

Post

Ace2cool wrote:You're never gonna max the stock injectors, so no need for the 370cc's. Everything else MAY get you to 190-200 whp. That's about what the N/A maxes out at, sadly.
Third. :werd:

User avatar
Z-owned
Posts: 3487
Joined: Fri Aug 29, 2008 8:56 pm
Car: 93 N/A Z32
90 VW Corrado
01 mr2 spyder
Location: Auburn, WA.

Post

vh and ls engines are both great n/a power makers ;)

User avatar
DCaff300ZX
Posts: 4202
Joined: Sun Jun 14, 2009 8:18 am
Car: .
1993 CRP TT- Modified
Location: Tacoma, Washington

Post

Sadly at this point your dollars just won't be well-spent for brute horsepower, so you will need to make it respond better and make the car work better.
Your mods listed and others are your best bet, a tune is another very small add but most importantly will help clean it all up with the porting and other high end mods mentioned...then you will need to lose a lot of weight from the car like Honad did or similarly, and put the best suspension in it you can so it handles perfectly and you will have about as much as you can get from an NA without swapping in another NA motor with more HP capabilities.
My own project NA will get a swap of some sort to become better, because it just doesn't make sense to spend the $ on a NA VG that if spent elsewhere would net a lot more bang for the buck.

Road Warrior Z32
Posts: 50
Joined: Sat Feb 02, 2013 4:54 pm
Car: 1990 Nissan 300zx
Location: California

Post

Ace2cool wrote:You're never gonna max the stock injectors, so no need for the 370cc's. Everything else MAY get you to 190-200 whp. That's about what the N/A maxes out at, sadly.
How come? ... So a Honda engine is better than a NA VG?

User avatar
Z-owned
Posts: 3487
Joined: Fri Aug 29, 2008 8:56 pm
Car: 93 N/A Z32
90 VW Corrado
01 mr2 spyder
Location: Auburn, WA.

Post

A honda engine (depends which one) is a much more efficient engine that the n/a vg. But thats what technology does...

User avatar
DCaff300ZX
Posts: 4202
Joined: Sun Jun 14, 2009 8:18 am
Car: .
1993 CRP TT- Modified
Location: Tacoma, Washington

Post

A lot of the "problem" if that's the word is that the engineering and science behind the VG that created the layout of the engine, and that layout really only responds to boost as a performance improver due mostly to the intake piping and dual throttle bodies/long runner intake manifold. They increased the compression ratio in the NA motor for a little more power and used the variable valve timing but with air openings similar to the TT more or less, so it is already pretty opened up for air intake especially with a POP charger which only leaves exhaust which is a marginal add, then comes the small internals and other mods listed at very high costs and similar minimal gains.
That's the basics without going into engineering details that I do not possess...

User avatar
Oh Em Zee
Posts: 549
Joined: Fri Apr 17, 2009 6:55 pm
Car: '96 Nissan Z32 Slicktop
'90 Nissan Z32 2+2
Location: San Jose, CA

Post

Oh come on, guys!
Sure, you can max 270cc injectors on an NA. It's just really hard to do! Lol.
Adjustable Exhaust and Intake Cam sprockets.
JWT Cams
Unorthodox Racing pulley set
Light weight flywheel + Z1 Aluminium driveshaft
58mm Throttle bodies or ITBs
Port matched plenum
Selin dual MAF translator with extended harness, cut back the intake piping to mount 350\370Z JWT pop chargers (which ever was the shorter version) under the headlights.
Direct injection Nitrous Oxide...
Bore and stroke, 3.2L VG30DETT JUN kit with custom pistons http://www.vividracing.com/catalog/jun- ... 24652.html
You can also run E85 and up the compression to 12:1, but that would potentially get near maxing 370cc injectors.
Blah blah blah blah blah, so many more mods.
Package all of that up, send it to Specialty Z for a tune.

Image
Never say never! If you have a s*** ton of money :cheers:

Rager
Posts: 758
Joined: Mon May 24, 2010 12:32 pm
Car: 1992 Nissan 300ZX 2+2
1999 Nissan Sentra
2004 Chevy Silverado
Location: 860, the Z, 802, oh ive got area codes

Post

[quote="Road Warrior Z32"

How come? ... So a Honda engine is better than a NA VG?[/quote]


no he was talking about "honad" hes a forum member that went through a crazy ordeal to strip the car of ever last oz of extra weight from his slick top.

User avatar
300ZXttZMAN
Posts: 6800
Joined: Mon Nov 22, 2010 4:07 pm
Car: 1990 Nissan 300ZX TT 5spd pearl white

DD: 2008 Nissan Frontier NISMO pkg 4x4 Crew Cab
Location: Sulphur, LA 70665
Contact:

Post

Z-owned wrote:A honda engine (depends which one) is a much more efficient engine that the n/a vg. But thats what technology does...
Agreed.

User avatar
DCaff300ZX
Posts: 4202
Joined: Sun Jun 14, 2009 8:18 am
Car: .
1993 CRP TT- Modified
Location: Tacoma, Washington

Post

Oh Em Zee wrote:Oh come on, guys!
Sure, you can max 270cc injectors on an NA. It's just really hard to do! Lol.
Adjustable Exhaust and Intake Cam sprockets.
JWT Cams
Unorthodox Racing pulley set
Light weight flywheel + Z1 Aluminium driveshaft
58mm Throttle bodies or ITBs
Port matched plenum
Selin dual MAF translator with extended harness, cut back the intake piping to mount 350\370Z JWT pop chargers (which ever was the shorter version) under the headlights.
Direct injection Nitrous Oxide...
Bore and stroke, 3.2L VG30DETT JUN kit with custom pistons http://www.vividracing.com/catalog/jun- ... 24652.html
You can also run E85 and up the compression to 12:1, but that would potentially get near maxing 370cc injectors.
Blah blah blah blah blah, so many more mods.
Package all of that up, send it to Specialty Z for a tune.

Image
Never say never! If you have a s*** ton of money :cheers:
Yup, I wanted ITB's and Sano's Z you pic'd lived on my desktop for years. I wanted to have some Hot Rod fun with my NA and searched/studied/bothered people I know for years, but the cost just to get somewhere near a stock TT just doesn't win any arguments I have internally over what I want to do and no one I know can come up with anything realistic without custom mechanical fab and mechanical engineering knowledge of the type that only RareF8 has that I know of.
I do still want the NA to stay NA if at all possible, and now am actually considering going FE Ford since I know that platform in and out (and don't have to do the whole f-ing ECU/electronics mess!) and would be able to at least fab mockups/templates of what mounts/etc. would be needed for the swap. FE's are expensive as hell though to build as well, so I still haven't settled on a base plan to begin saving/buying for but overall the VG really is having a hard time staying in the picture.
That's just the reality of the situation, NA VG just isn't a engine with a lot of potential left to be tapped without boost or nitrous.


Return to “300ZX (Z32) General”