Hi, some help please

[S15_Spec_R]

Hi, I am about to get a 99 sylvia spec r and I'm excited. Is there anywhere I can find out what the limits are for the engine and box etc and what standard figures are. Cheers and great site.

Keith

 

[S15_Spec_R]

Its ok I found the links to the japanese sites but I dont understand it! I heard they are 250bhp standard?

 

[LuPix_S15]

These are figures I got from an old issue of Autocar when they reviewed a standard JDM import:

Power 247 bhp @ 6400 rpm
Torque 203 lb ft @ 4800 rpm
Output 123 bhp per litre
PTW 198 bhp per tonne

I'm not sure about 0-60, 0-100 times etc. Does anyone have figures for these?

The standard T28 turbo seems to have an owner agreed limit of 1.2 bar (without it cooking). If you go down the general route of FMIC, upgraded fuel pump, bigger injectors, bigger AFM, ECU re-map, upgraded down-pipe, decat and free-flow exhaust you are looking at an increase to 300 bhp @ fly (or a little over)??

Anything more than this would require a bigger turbo.

Someone will probably correct me on my estimates...

 

[LuPix_S15]

Apologies - in my haste to reply I forgot to welcome you fella!

:wave:

 

[Topper]

Only thing i would say is that running those mods InitialD has noted, and 1.2bar, you will be more like 325hp @ fly.

0-60mph - around 5.5 seconds
0-100mph - not sure, will try at the weekend :thumbs:

Hello an welcome :wave:

 

[S15_Spec_R]

Cheers guys.

 

[Nicely]

The official listing was 5.8. Top speed is a tricky one due to all JDM cars being limited to 180km/h (112mph). I believe I stated 'at least 155mph' to Jap Performance mag when they ran their feature...

 

[Jono]

I believe I stated 'at least 155mph' to Jap Performance mag when they ran their feature...

At least! I've been close to that figure and it was still pulling like a goodun :nod:

 

[Topper]

We know.... i was behind you :wave:

 

[Nicely]

150 minus up to 10% speedo inaccuracy = 135... Check the difference between the speedo reading and GPS at about 100... Better still, get someone else to check it... :wack:

 

[S15_Spec_R]

5.8 isnt great is it? Not putting the car down but thought it would be close to my supra tt6

 

[Nicely]

That pretty good for a standard car. Consider the size of the Supra's engine and that its got two turbos...

A properly breathed on S15 will see figures under 4.8... Getting rear wheel traction is a bit of an issue though...

 

[S15_Spec_R]

Been reflecting on my thoughts and 5.8 is quick.

 

[dns15]

the 6 speed is putting down s15's 0-100kmh too
u need to go to 3rd gear which requires 2 gearshifts as 5 speed only needs 1st to 2nd to go to 100kmh
unless ur gan san from BMI itll be quite a mission to get fast 0-100s

 

[S15_Spec_R]

Yippee, I have finally got it. Some pics here. Does anyone know what the standard boost is in bar? Cheers, Keith

PS Does anyone know how I get pictures on here?

 

[Nicely]

0.7 bar.

http://forum.s15oc.com/showthread.php?t=961

 

[S15_Spec_R]

Thanks Nicely, if I remove the cat will the boost raise or does the MAF cause a problem?

 

[gunner93]

A properly breathed on S15 will see figures under 4.8... Getting rear wheel traction is a bit of an issue though...

Rear wheels burn leaving the track with fire...?

 

[Nicely]

General breathing mods will probably be OK. Its only when you start upping the boost specifically that you have to be careful. Obviously, run the highest RON you can. Find your nearest Tesco Steer well clear of BP... :no:

Rear wheels burn leaving the track with fire...?

:nod:

 

[S15_Spec_R]

So the boost will stay at .7 with the cat gone and I currently have a hks mushroom filter and a nismo cat back exhaust?

BP fuel bad, reasons as I just filled up with the stuff!