Maximum Horsepower out of a Z TT without modifications

Just wondering if anyone knows what the maximum theoretical amount of horsepower can be put out of a Z Auto TT with no modifications?

I know the figures that are stipulated by nissan of what the average is (from memory I think it is under 330hp - please correct me if I am wrong).

But I am wondering what the highest can be theoretically possible with nothing but a stock setup?

Is there any physics gurus out there that have calculated this maximum that is theoretically possible with lets say a freaky stock motor that is naturally blueprinted (in that it fits perfectly in all measurements with actual being blueprinted as such)?

Approximate figures are fine - not looking for a decimal point answer here

Cheers
Jamie

 

Are we talking Australian dyno ?

 

Nissan quoted the 300zx as 300bhp or 280 in some cases

Are you asking what the power is without mods ?
(so no boost increase, aftermarket filter , exhaust etc or did you mean engine internal modifications)

 

No mods except a blueprint being allowed

YES - none at all

What is the highest that is possible theoretically without any mods at all
(so you can have the highest compression possible 6psi boost - standard add ons - like platinum plugs etc) but no aftermarket performance parts like mild cams / lightened pulleys etc

Give that it is possible to have perfect tolerances / measurements on some factory motors (naturally blueprinted) I will allow a stock blueprinted motor (if theres such a thing) to be included as part of the figure

Not talking average - talking about highest theoretically possible for the VG30DETT @ 6PSI

To make it even simpler in understanding - what is the highest stock HP figures that you have heard any Z producing (of any Z ever produced)

Hope that explains what I am trying to ask

Regards

 

Highest I've heard of to be honest is the quoted Nissan figure for no mods at all straight off the show room floor, people have dyno'd stock ones before and have always come short of that, so I think Nissan quoted the highest, when brand new, not the average

 

No.... still confused....

Firstly, stock psi is 9psi, not 6psi. And secondly, you're essentially asking what a stock as a rock 300zx Z32 TT makes at the wheels. No one can answer that 100% as it depends on many conditions, such as dyno (NZ or aus dyno, ahh shit, i'm only joking ) etc etc...

But as someone has already stated, a healthy stock TT engine should make somewhere between 170 - 190 rwkw...

 

Stock theoretical????
Pff..At the end of the day, nobody actually cares m8.
Dyno your own and then youll know at least what yours does. Then again, thats a woftam.
Way it goes!

E

 

thanks for correcting

 

yes - I am gonna have to do the dyno to find out - thats why I was asking for a figure offhand as a guide

just cannot believe this TT is only doing 190 rkrw or less (basically stock short of a few small mods) and so I was just curious if lots of others have had higher figures.

The only way to know at the end of the day is to run the dyno

Cheers
Jamie - the other half

 

When talking stock, it really comes down to whether a couple of hundred dollars is worth a figure on a slip of paper yer?
Hence the woftam comment. Your the only individual Ive EVER known who was actually interested in what power a car actually produces box stock see?

There are theoretical engine dyno programmes around the net you can download and if you have a stripped engine, and closely measure it, you can get a fairly reasonable figurel!
These are especially useful to compare proposed mods and changes and can produce a theoretical "dyno" slip you can use to compare setups.

E

 

stock engine power

on a dyno ive seen them vary from about 160rwkw to about 190rwkw depending on engine condition and trans bog stock

add a exhaust, bigger intercoolers (front or side mount little difference for the comparison) a pod and some boost, and youll see it climb anywhere up to about 250rwkw again depending on condition trans etc.

 

''just cannot believe this TT is only doing 190 rkrw"

Believe it, and its probably less than 190 atw. What you should do is bum a ride-drive of a 250-300 rwkw zed, that experience should leave you in no doubt as to where your car stands in regards to torque-power.

 

why does that figure surprise you???

From factory, the TT makes approx 220-225 Kw at the flywheel, although it was only ever reported as 208 kw diue to the gentlemans agreement at the time....

So taking into account drivetrain losses and the age of the car, 190rwkw is a nice figure for an essentially stock car. When you say small mods, what are these small mods??

 

further to that go for a ride in a stock 260~300kw falcon or commodore. (those are engine ratings there as well) not only will the falcodore be totally underwhelming compared to the nissan (well everyone I drove was) It wont be a Z :br:

 

also a zed that has been overheated and recently rebuilt will be a little better than stock if the heads have been machined slightly.

 

Hi Tas - had to put it on dual intake later etc - so needs to go to a dyno in the end
Cheers for the theoretical dyno info - I will look around for that and see if I can find some

No - dont know where the 6psi came from magic mike - lol (absolutely no idea at all)
There are no air leaks at all as its well maintained - I dont look at the psi gauge

The story - The car has 70,000klms on the clock (genuine klms) and has been serviced/ looked after. The small mods are the usual plugs upgraded / nistune ecu / apexi filter / insulated all intercooler pipes/ delete cooling under plenum /opened up intercooler vents/ serviced injectors / larger exhaust 100 and 200 km service kits - there is nothing done to internals of motor though - it is almost basically stock.

I have been in other TT's in comparison. If I am travelling at 60-70 kmph in this and hit the accelerator to the floor it fishtails - it just feels like this car is putting out a lot more than the stock rwkw figure and most likely above 250rwkw but I cannot see any of these small mods justifying that figure. Hence why I am wondering what figures others have run and whether others have had higher figures than stock with basic/ small mods

Cheers

 

Unless the nistune is tuned and its running higher than standard boost you won't be making much more power than stock.