hi. just wanted to know what is the BHP for a standard TT? and what is it when its running 10-15psi. i like racing around in my zed and when i have beaten little racers they always want to know the statistics. whats the average 0-60 on 10-15psi boost.

thanks for the info.

 

p.s. i`m thinking of getting traction controll cause i always end up sideways. what are the disadvantages (someone told me its not always reliable). cheers guys

So, let me get this right...

 

...you own a Zed but don't know the power ouput figures, and you bother to stop when you've beaten a rollerskate? Hmm, didn't happen to own a Saxo in a previous life did you?

 

Tim

Just keep Duff away from this guy willya?

 

Seriously though...might be an interesting question. When I bought my imported TT, I thought it had 280 horses. Found out from Luke later that the RON difference Jap vs UK reduces stock jap TT`s to about 260 horses.

 

I remember the days when I beat my first Saxo with relish... (I was on roller skates at the time though....):D

No 'standard' Jap car will run more than 280BHP, its the Jap law, and they are also limited to 112Mph

 

Tim

You talking to me TT ?

Haha and you thought *I* was cocky.... No such thing as bad advertising eh ;)

Originally posted by jenbstevieb

Just keep Duff away from this guy willya?

 

Seriously though...might be an interesting question. When I bought my imported TT, I thought it had 280 horses. Found out from Luke later that the RON difference Jap vs UK reduces stock jap TT`s to about 260 horses.

 

I remember the days when I beat my first Saxo with relish... (I was on roller skates at the time though....):D

 

 

Are you joking? The japs have better fuel than the UK

Which is the point I was trying to make......

 

In Japan my Zed would have had 280 horses with 100 RON fuel. With average fuel in the UK being 93-95, the resultant effect is to reduce the horsepower of imports to around 260-265 in the UK. That`s what I meant, just that thinking because a Zed has 280 horses in Japan don`t mean it has that amount of power here.

 

Apologies for any confusion caused:)

well this is wrong, because when we had our dyno day (yonks ago) jap import and uk cars which were stock made roughly the same power at the wheels.

plus 280 is jap quoted figure, the actual figure is nearer 300 as every other jap car is usually the same 280bhp.

rc951...........10-15 psi..........which? that is quite some difference there!

In which case, I should bow down and apologise...I was just quoting from a chat I had with Luke when we were discussing whether I should get a stage 1 chip or not to remap the fuel settings.

 

Seemed to make sense to me though. If a car gives 280 hp using 100ron fuel and you give it 95 ron instead, shouldn`t a 5% decrease in output (266hp) be the logical result?

 

Or maybe I`m spouting.....just seemed to be a case of simple maths though.....

every 1psi is equal to about 10BHP as a rough figure if you were to increase fueling and boost this figure will rise depending on what other mods you go for.

mine was 276bhp at kings langley at the wheels with just air filter. is now 331bhp at wheels running 14.5psi jwt with decat pipes. twin induction kit.

 

just my opinion.......

the Ron (octane rating) is the fuels resistance to knock or detonation. it DOESNT mean its 5% more efficient!! the fuel itsef will burn the same (assuming no detonation), just because your using 95 ron fuel doesnt mean your car WILL det, just its more likely, esp if running high boost etc.

 

anyway, use Optimax, thats 98.summit or other + ;) :D

Call me a heretic here but we always seem to think of bhp gains for the sake of it when we actually want speed / acceleration gains. Power to weight ratio improvements (ie lightweight propshafts / wheels etc) or just better traction can give improvements in acceleration.

 

How many times have you taken on 500bhp Cosworths etc and come out on top ? ;) :D

I'm not saying BHP gains aren't fun though !!!

 

:D

Have been on some US sites and some zeds are running 600bhp and above on 92 octane fuel ,if i'm not mistaken on reading it,so how do they overcome the detting probs,are they just shoveing masses of fuel in and running well rich!,just wonderd!:confused:

280 BHP is not Japanese law, its a gentlemens agreement between the car manufacturers and the jap government, (and any way its 286BHP). You can't be telling me that a Skyline R33 GTR Nismo 400 is only 286BHP?? Torque (LB/FT) is acceleration and power (BHP) is top speed. Lighter weight aids both.:p

Their octane rating system works differently to ours.. I think 92 is the equivalent of about 97 over here..

 

RON vs OEN or something like that..

Ah!me understand now:D

I was almost right - we use RON (Research Octane Number, I believe) and they use MON (Motor Octane Number? Possibly..)..

 

I mean, if it was 92 RON, you might as well take a leak in the tank, it'd run better... :D:D

I use HRF (heavy right foot) :D

 

So what is the RON rating for their fuel in Japan? (ie their "good stuff")

Just been to look at the stats again ,it says 91 octane running 20.6psi:eek:

I *think* Japan use RON, the same as us (but I could be wrong..), and it's 100RON I believe.

 

20.6psi on 91MON (I think that's ~95RON) is perfectly doable, if you do a lot of other things, I imagine..

 

Remember, as Paul pointed out, the octane rating of a fuel is it's resistance to detonation - all that means is that you have a tighter set of parameters to remain within to avoid detonation..

 

And there's lots of things you can do to avoid det. Retard the timing, cool the intake charge more (bigger intercoolers, water injection, even water/methanol injectors), colder plugs, rework the heads to avoid potential hotspots, better water jacket around the cylinders, better oil sprayer pattern to keep the piston crown temperatures down, heck, you could even reduce the compression ratio..

 

The list is endless..

 

Boost pressure is just one of many factors, afterall - and indeed, just one of many things that can cause detonation. Even high carbon deposits can cause detonation in an otherwise low tuned engine (carbon deposits remain artificially hot, therefore causing preignition spots on the next power stroke)..

Clever barsteward! :D :D :D

Originally posted by rc951

hi. just wanted to know what is the BHP for a standard TT? and what is it when its running 10-15psi. i like racing around in my zed and when i have beaten little racers they always want to know the statistics. whats the average 0-60 on 10-15psi boost.

thanks for the info.

 

p.s. i`m thinking of getting traction controll cause i always end up sideways. what are the disadvantages (someone told me its not always reliable). cheers guys

 

The stock Uk cars were listed as....

276bhp manual and 263bhp auto.

 

Jap spec cars were listed as....

280bhp for both models!

 

US spec were listed as....

300bhp manual and 280bhp auto.

 

The differences between manual and auto were officially down to different turbos,camshafts and fuel mapping.

Don't ask which is fastest though!:D

JEZ

Originally posted by marriota

280 BHP is not Japanese law, its a gentlemens agreement between the car manufacturers and the jap government, (and any way its 286BHP). You can't be telling me that a Skyline R33 GTR Nismo 400 is only 286BHP?? Torque (LB/FT) is acceleration and power (BHP) is top speed. Lighter weight aids both.:p

 

 

 

No it is law!

Mass produced Japanese cars can not be more than 280PS, which is just over 280bhp. The Skyline Nismo 400 gets a way with it becuase its not a mass produced car, and I believe the Mitsubishi Evo 5 Extreme produces over 350bhp, because its not a mass produced car, or is tuned outside of the country. I think it has to be under 500 cars to not be classed as mass produced.

 

Stuart