260 RS Dyno Results

[Kip]

I put my new-to-me Stagea on a dyno today. I don't know the history of this car, so I thought I'd get a baseline. You know, figure out my starting point before I change a couple things up. I thought some of you may be interested, so I've attached an image of the 2nd dyno run.

Results are decent: 252.54 ft-lbs (342 nm) and 292.78 hp (218 kw) peak at the wheels and 311.29 ft-lbs (422 nm) and 359.38 hp (268 kw) peak at the crank. The car has a cat back exhaust and mushroom filters on it, but the rest is unknown. Since it's supposed to have around 280 hp stock, I'm guessing something else has been done to the car. No way a cat back and air filters gave me 80-ish hp. Time to do some poking around and figure it out.

-Kip

 

 

[GTSBoy]

What's the boost?

[Kip]

1 hour ago, GTSBoy said:

What's the boost?

Based on the in dash meter, around 0.8 bar. Stock is 10 psi on this motor, yes? If so, I'm pretty much running stock boost.

-Kip

[GTSBoy]

0.8 bar is nearly 12 psi, so you have a little more boost than stock. Nowhere near enough to explain the amount of power it made at that boost, so it's going to be fair to assume that you have bigger turbos on it. -7s or -9s or something similar perhaps.

[Kip]

4 hours ago, GTSBoy said:

0.8 bar is nearly 12 psi, so you have a little more boost than stock. Nowhere near enough to explain the amount of power it made at that boost, so it's going to be fair to assume that you have bigger turbos on it. -7s or -9s or something similar perhaps.

Maybe. I haven't had a chance to dig into the engine bay. It didn't come with a mod sheet, so I need to go on a fact finding mission.

[PranK]

Sounds like it might be a *good* fact finding mission for a change!  

RB26's have a restrictor in the boost line. Pop this out and it'll run 12psi all day. Maybe check this is still in place? 

 

[Kip]

17 hours ago, PranK said:

Sounds like it might be a *good* fact finding mission for a change!  

RB26's have a restrictor in the boost line. Pop this out and it'll run 12psi all day. Maybe check this is still in place? 

 

That's a good piece of info. I'll have some time this weekend to check it out. Don't even have to put it on a lift! 👍

[Duncan]

It's almost like Nissan wanted us to do it

[Kip]

Took longer than a weekend to get to it, but I finally took the time. The boost controller is in a different spot on the Stagea (between the battery and fuse box), but the hose with the yellow line was there. Sure enough, the restrictor was still in my car. Woot! 50% more boost for 20 mins and $0 USD ($0 AUD at current exchange rates 😜).

[PranK]

Gotta love free horsepower! 

I'm sure we used to have a free horsepower thread but I cant find it now... 

[Kip]

Too late to edit the previous post, so I'll post a correction. I was making .6 bar before the mod and .8 bar after. That's a 33% increase in boost, not 50%. Regardless, still a freebie.

[niZmO_Man]

Yeah the 206kW/280hp agreement was too low, really hampered the performance cars (not that it mattered outside Japan, e.g. Supra).