Interesting results after fitting SFB

[cpitts]

Hey guys,

As you know, my car's pretty stock. Straight through mufflers, massacared airbox but otherwise stock.

As part of fitting up my silicon intake pipework, I fitted the SFB as a start to the process. I don't want to fit the full intake pipe until I plan on doing the reflash, the airflow change will result in woeful performance and fuel usage.

ANYWAY,

After fitting the SFB, I've found the following:
- A little more suction and BOV noise. Still far from offensive though
- Slightly improved fuel economy on a mixed city/country cycle
- Noticably improved fuel economy on distance runs
- Slight throttle response improvement

Clearly the benefits of the full intake upgrade will be good given this improvement from removing the restriciton and turbulence of the standard S pipe.

btw, no dyno's etc of this stuff yet. When the tune gets done it'll be all done then.

[parso_rex]

I'll wait till you get your dyno results in
I'm always a bit negative of intake mods as the standard airboxes in most car are actually pretty good these days with their large filters and so forth, in the rexes you can run over 200 atw without even worrying it may even be up near 250 and the stock paper element is one of the best bizzarely BUT I've had a couple of things happen lately that have proved my global theory wrong and I haven't even looked at the Liberty yet anyway . I should probably shut up I guess but heh it improves my post count

My mate was doing one of his standard remaps on a Gen III a few weeks ago and I saw him trying to get some dodgy sheet metal intake attached over the radiator, it wasn't even one of those fully hektik black carbon fibre ones FFS !!!. I laughed and said is it worth the effort and he said the guy wanted it and so on. Anyway to cut a long story short about 5 minutes later it laid down an extra 20 kW atw just with that alone 3 runs with the scoop intake 3 with stock overlaid etc and in a boring NA car. I said hey that just made 20 kWs on the last three what did you do. He just said yeah thats what they all do. Might have just been that model and not the later ones of course but still

On my old car I put a silicon intake on and it did improve spool with that convoluted piece of factory crap out of the way

[cpitts]

I haven't removed the airbox, just cut a massive hole in the front side of it to let the air be sucked in easier from the guard area.

I don't expect any extra peak power, just better throttle response. But I'll wait for rpm range changes and power changes when I have dyno time.

[parso_rex]

I haven't removed the airbox, just cut a massive hole in the front side of it to let the air be sucked in easier from the guard area.

I don't expect any extra peak power, just better throttle response. But I'll wait for rpm range changes and power changes when I have dyno time.

Cool, actually I remember I had the MSR 90 mm conduit intake on mine and that sucked, literally

[GTSPECB STI]

Hyperflow CAI and Silicon Intake Pipe installed last Thursday then re-tuned.

Pros: Spools faster, intake temp drops quicker from a start, the car pulls much smoother thru the gears even at WOT.

Cons: Re-Tune results in a drop of 12 hp and 5 Nm torque on the day.

[cpitts]

Well, here's something interesting. After fitting the silicon SFB to my '07 GT-B, I've had an improvement in fuel economy by .5 to 1l/100km. Seems odd, I know, but this is after 4 tanks graphed compared to the ownership of the car over the last 30000K's.



You can see I've listed various mods for the car and driving conditions (more important than mods from doing this graphing with the last 8 cars I've owned). But you can see where the SFB was fitted and it's instant response in fuel econo.

Amazing what keeping some basic data will show you.