last I checked, the Z's are forged, but I could be wrong, never seen a solid answer on it. anyone know?

 

If it was a TT, that's a good deal. Even with 100k miles, if it had that.

 

I ask this question of a Nissan Engineer (and fellow 350Z owner) here at the Smyrna plant (home of the maxima) and he claims the weakest link of our engine is infact the rods.

And for the record my GUESS is our engine is only good for about 4-6 psi on stock internals. Anything more would be insane and not worth the headache that comes with walking on the edge of reliability. Not to mention the custom ecu modification / overrides needed to handle all that boost entails.

 

right on VandyZ, and lets face it; if for some unbelievably strange reason anyone can put more than 350 whp on the pavement without burning the tires(aside from running drag slicks) completely off then I need more training and all wheel drive.

Ok, ok, I want 500whp too but I can't afford the tires

 

Heck, I can't put 287 to the pavement effectively! I definitely need more practice. I think I need license plates on the side of the car because it is seen more than the back!J/K

 

What about Top Secrets Turbo setup that just ran 18 psi on stock internals?

The VQ will be fine boosting at 10psi.

All the maxima guys said that they maxima VQ couldn't handle over 8 psi forever. Now look what some are running.
14.8 psi and the motor is still fine. Noone said the maxima would ever make over 400whp. now theres some putting down 430whp.

You just never know until you push the envelope and i can almost guarantee this VQ will handle 10psi without a problem. But if it were me i would run about 6 psi on the road. When a Supra comes along then i'll bump it up to 12.

 

Where did you read stock internals?!?!?!

NO WHERE... did it say that.

ACTUALLY... it said "this engine is comprised of many custom parts" ...

 

No one has mentioned that you may need to increase the diameter of the exhaust from the cats back to run Turbo.

Stock Ehxaust is too small (2 inches in some parts) for Turbo (In my opinion.) on our Z's.

 

https://my350z.com/forum/showthread....ght=Top+Secret

and the go here and read the entire article before you make assumptions

https://my350z.com/gallery/albuo31/aab?full=1

and i qoute "The Block and Internals were left untouched, but Top Secret has some tougher internals currently in development."

there you go.. Read up.

remember though i never said it would run forever at 18psi. or how they did it.

But they did.
and it can be done. The VQ is a STRONG engine. ANd i think everyone will be suprised with it's potential.

 

the Z wasnt meant to drag race, its fun and all, but your right, its not easy to launch even 287hp. but half throttle in 1st would be ok, then floor the 350hp in 3rd. the Z cant break traction above 2nd-3rd gear shift, atleast I cant, without like major clutch drops to do it on purpose.

 

This is true, however, throw 60 more hp on top and see what happens. It would be absolutely awesome but traction limited. I autocrossed today and lost it three times just half-throttling in second and third. Yeah, it was my first time but I don't think I'm THAT bad. The car has awesome torque which powers it out of the corner strong(stock) but it would be too strong on the road course. I agree with u on the wide open road though topped out in 4th. No one could hang. where is that Z06. Have I gone too far with that???

By the way, lets just assume the motor does stay together at 10psi and up. What do you think is going to happen to the tranny synchros, carbon fiber driveshaft, rear end, and everything in between when u put 450whp down???

 

Hmm,

How many of you would actually shell out $7000 (give or take) + install... for an extra 100 WHP ?!

I'm all for turbos and all, but at that price and only 6psi for a safe ride, that's a pretty ridiculous amount to pay for a voided warranty and such a tremendous financial expense.

That said, I'm still deciding whether to take the FI route or to stick to NA mods.

-slay

 

I have to agree! I am no expert here, but the compression MUST be lowered for any supra like modibility, not to mention many other components!

This is the exact reason why I have chosen to go to a race car builder for a custom turbo fabrication. I thought to myself, there will be NO turbo in a box sold by any tuning company, that you can just slap on and expect long term drivability for the 350Z. If our car was already turbo, then yes. If you had a VW 1.8T you could have a 12.6 second car by simply buying their $4,000 Stage III turbo upgrade.

There is really no disadvantage of a custom turbo. If you sit and think, any turbo you buy from companies like Greddy, HKS, PE or Top Secret will have to end up at a shop that knows how to build/install turbos.

The KEY to making this NA 350Z a turbo car, is the installer/shop you will use. The only difference with a brand name labeled product will be lower cost, and later availability. if you are a company like Greddy, you can make custom 1-off manifolds or pistons for the test car, but before the shopping carts open and shipments go out to distributors, these companies have to be ready to pump out in bulk quantities. As well as have enough supply of turbos from companies like Garrett and HPI.

If you go custom, there's less wait. Good shops will do all the 3" piping, manifolds and other parts 1 at a time. They can also outsource piston work.

to make our cars turbo is synonomous to asking for an AWD 350Z, this is not an easy conversion.

Do your due diligence! Be good to your Z.

 

The Greddy TT preview from the SEMA show:

http://nissancar.tripod.com [Original]

http://nissancar.onlinepulpit.com [Secondary]

Enjoy!

 

Yeah we all know this, BUT when a Mustang, Z28, or riced out anything comes along you have to represent right? You might as well have enough practice to show up the competition.

Besides you get a <normal> mustang or Z28 in the curves and you usually have to call a tow truck to get them out of a ditch. (Not meant to upset the two examples used, but our car is much easier to dive in those situations, driver for driver)

 

Ask anyone of them the cost of a replacement engine and I bet you will find they know it down to the penny. Why? Because they have already done it or are planning to have to do it.

Also I think it should be said that turbo psi is different from supercharger psi when you talk about how much an engine will take.

 

I will be picking up 100HP jets today for Wednesday Night drags.

Cost $3.50 per jet total 6 bucks

I think I can do 12.9 will be pulling the brake fuse and adding a ZEX bottle heater today too. I will be able to launch at 2500 like I want to. If I hook I expect a 1,7 60 ' and probably a 108 trap. Let's see how close I come to these numbers! Wish me luck!

Short of a terrorist attack I am taking 3 days off for the first time in years!

 

The VQ30DE and VQ30DE-K did in fact have forged pistons. I do not see why the VQ35 would be any different, especially considering that they were trying to sqeeze as much HP out of the VQ while maintaining reliability.

 

Say what you want about nitrous and how it's not real power but this weekend my Z was coming out in front when running with stage 2+ S4's and Porsche 993's.

 

My stock 5AT breaks traction in 3rd gear from a rolling start because the traction control comes on for an instant after the shift from 2nd to 3rd gear. BTW, my MR2 T had 7 psi/w intercooler and my compression ratio was 8.8:1. The Zs compression ratio is 10.3:1. I would be careful about how many psi of boost I would feed the stock car, maybe 5psi to get to 320 or 330rwhp, then start replacing internals to go higher.

Just a thought.