Your opinions please!

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
User avatar
FlogWaffle
Posts: 30
Joined: Thu Mar 25, 2010 4:55 pm
Car: 1990 300zx NA

Post

So yes, i am trying to do all i can to make my NA "faster." Before the s*** storm arrives, please note that i would LOVE to tt swap my car, or even just trade it for a tt, but at the current time...and probably for the next few years due to college that wont be happening anytime soon. soooo i basically have no choice but to lump it and try to eek out every pony i can in my NA. So far, i have an intake, headers, and full exhaust. (sounds great...moves slow) haha but i was looking at the z1 ECU upgrade.

Being Priced at $175, do you guys think this would even be worth getting for an NA? Its basically the only other thing i can do power wise that i am aware of (no...im not getting nitrous dont even say it haha) How much power could i expect out of a chipped ecu? :gotme

After that i am hoping just to make it a clean dd, that will last me for years to come before i decide to swap or trade it and go for a tt or move into the subaru game.


User avatar
bbecker17
Posts: 139
Joined: Thu Sep 24, 2009 11:53 am
Car: 1991 240sx.... dead
1990 300zx tt jdm
Location: Saskatchewan

Post

im not to sure about the chip if i had to guess i'd say 10-20hp but i did just wanna say that theres only 1 replacement for more power and thats less weight so i'd say start tearing it apart!

Re037
Posts: 333
Joined: Thu Aug 05, 2004 6:20 pm
Car: 1992 300zx 2+2 NA

Post

id get a reprogamable socketed ecu instead, so if/when you go tt you ll be ready to tune.

Z31toZ32
Posts: 1673
Joined: Fri May 23, 2008 12:43 am
Car: 1999 Infinity QX4
Location: Denver, CO

Post

id vote that the only thing you get out of a chip on an na is a higher redline. shoot on a tt it doesnt even add power. all it does on a tt is make it run richer so you can safely run higher boost, which is where the power comes in.

User avatar
FlogWaffle
Posts: 30
Joined: Thu Mar 25, 2010 4:55 pm
Car: 1990 300zx NA

Post

bbecker17 wrote:im not to sure about the chip if i had to guess i'd say 10-20hp but i did just wanna say that theres only 1 replacement for more power and thats less weight so i'd say start tearing it apart!
hmmm...i might just go for it, try to get everything i can out of it powerwise. But i have already started taking some of it apart actually! i'm waiting on my seat rail to get here from japan and ill throw my bride in there which is hella light compared the the stock seat haha.

User avatar
a.p.barron
Posts: 139
Joined: Sun Apr 04, 2010 3:57 pm
Car: 1985 300ZX Turbo
1991 300ZX N/A *sold*

Post

What about a lighter UD Crank Pulley, lighter 1-piece drive shaft, or lighter flywheel? Those won't add HP, but they will definitely free up some and they will make your car more responsive.

User avatar
BigTDogg (MA)
Posts: 4194
Joined: Wed Aug 29, 2007 8:26 am
Car: 1990 Nissan 300ZX TT
Location: Boston MA

Post

Z31toZ32 wrote:id vote that the only thing you get out of a chip on an na is a higher redline. shoot on a tt it doesnt even add power. all it does on a tt is make it run richer so you can safely run higher boost, which is where the power comes in.
Not true, there is a lot of fine tuning with the fuel delivery and timing maps that can be done by a real tuner. For a TT I'm saying.

For an NA, it's relatively pointless.

Z31toZ32
Posts: 1673
Joined: Fri May 23, 2008 12:43 am
Car: 1999 Infinity QX4
Location: Denver, CO

Post

^ right. i was referencing an off the shelf chip.

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

you should do a weight reduction

vulcanrush
Posts: 1183
Joined: Thu Mar 25, 2010 2:41 pm
Car: 93 300zx n/a to tt

Post

Z31toZ32 wrote:id vote that the only thing you get out of a chip on an na is a higher redline. shoot on a tt it doesnt even add power. all it does on a tt is make it run richer so you can safely run higher boost, which is where the power comes in.
i've heard of being able to run higher boost with higher octane (100 octane vs 93 octane vs 91 octane, etc.), and methanol injection (same thing, really) --- i haven't heard of how much boost you can run being correlated with the air-fuel ratio setting in an off-the-shelf chip.

User avatar
BigTDogg (MA)
Posts: 4194
Joined: Wed Aug 29, 2007 8:26 am
Car: 1990 Nissan 300ZX TT
Location: Boston MA

Post

vulcanrush wrote:
Z31toZ32 wrote:id vote that the only thing you get out of a chip on an na is a higher redline. shoot on a tt it doesnt even add power. all it does on a tt is make it run richer so you can safely run higher boost, which is where the power comes in.
i've heard of being able to run higher boost with higher octane (100 octane vs 93 octane vs 91 octane, etc.), and methanol injection (same thing, really) --- i haven't heard of how much boost you can run being correlated with the air-fuel ratio setting in an off-the-shelf chip.
The off the shelf chips fatten up the fuel curve so you can run more boost safely. It's a guess, as it's general for all cars, but it's definitely safer than running more boost on an OEM chip.

The best way to tune is with Nistune and you can tune each cell based on RPM and Load.

User avatar
dantesdoom
Posts: 270
Joined: Wed Mar 04, 2009 7:28 am
Car: 1991 Nissan 300zx N/A
1997 Nissan Pickup

Post

from one NA driver to another....intake and exhaust were your highlights....the car is fun and responsive, but its gonna be hard to get anything else out of it without serious cash

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

I'd get pulleys (underdrive crank, overdrive water pump) and a lightweight flywheel + upgraded clutch kit. Higher clamping force and better friction materials on upgraded clutches means a more firm clutch engagement - a difference you can absolutely feel. I wouldn't worry about the drive shaft until the center bearing on your stock one fails.

That's all I'd really go for man...any more money spent will be like paying for bread crumbs. Get the rest of the car in shape - there are tons of things to do beside engine performance. Subframe and differential bushings, upgraded sway bars and bushings, coilovers and adjustable control arms/traction rods/tension rods, wheels and tires, hids, and body mods/aero (front bumper, wing, rear bumper, whatever you like man). And of course there is always SOME maintenance you can do...fluid exchanges, fuel hoses, power steering hoses, fuel filter, brakes, the list goes on and on.

That's basically my gameplan...I'm spending some money on performance but not a whole lot. I really want to get to my suspension...this car is gonna be prime when I get to the TT swap!


PS - don't you have a hesitation problem? ;)

User avatar
FlogWaffle
Posts: 30
Joined: Thu Mar 25, 2010 4:55 pm
Car: 1990 300zx NA

Post

es.biggs wrote:I'd get pulleys (underdrive crank, overdrive water pump) and a lightweight flywheel + upgraded clutch kit. Higher clamping force and better friction materials on upgraded clutches means a more firm clutch engagement - a difference you can absolutely feel. I wouldn't worry about the drive shaft until the center bearing on your stock one fails.

That's all I'd really go for man...any more money spent will be like paying for bread crumbs. Get the rest of the car in shape - there are tons of things to do beside engine performance. Subframe and differential bushings, upgraded sway bars and bushings, coilovers and adjustable control arms/traction rods/tension rods, wheels and tires, hids, and body mods/aero (front bumper, wing, rear bumper, whatever you like man). And of course there is always SOME maintenance you can do...fluid exchanges, fuel hoses, power steering hoses, fuel filter, brakes, the list goes on and on.

That's basically my gameplan...I'm spending some money on performance but not a whole lot. I really want to get to my suspension...this car is gonna be prime when I get to the TT swap!




PS - don't you have a hesitation problem? ;)


i don't know if i am going to worry about pulleys, and clutch and all of that. I am hoping to do a TT swap sometime when i actually have $$ haha, and i will have to get all new stuff then anyways so i think i will just hold off on that kind of stuff so i dont have to buy it twice ;) but i am thinking i will move into the suspension soon, after i get some rims + tires :D I'm kinda taking the same approach as you i guess, im trying to get everything else done and then in the end TT swap it and it will be nasty. but you hit the nail on the head with body work..haha some ***hole decided to beat my hood and both front fenders with a ball peen hammer all over..so they will all need a lil' lovin when my wallet allows for it.. (this was before i bought the car...sadly)



p.s. ............why yes i do :argh haha i am hoping that my car has a mis-machined head (the tsb you brought up in my other thread) ..that way when i come to the conclusion that i need a new head and cam and crank sensor i can convince myself that it will be the same amount of $$$ as a TT engine ;) haha and i will attempt to swap it out.

User avatar
P3ngy
Posts: 316
Joined: Sat Feb 02, 2008 8:29 am
Car: 1994 300zx Twin Turbo(Sold)
1992 240sx (Sold)
Supra Swapped 95 E36 M3 - (Sold)
93 240sx (Daily Beater/Slider)

Post

FlogWaffle wrote:
es.biggs wrote:..that way when i come to the conclusion that i need a new head and cam and crank sensor i can convince myself that it will be the same amount of $$$ as a TT engine ;) haha and i will attempt to swap it out.
Lots more in the TT swap then just the engine and turbos [: :facepalm:

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

^^ Pretty sure FlogWaffle knows that.

I just replaced my CAS with a used one from a local buddy, and it has worked great since then man.


Return to “300ZX (Z32) Technical”