Phat GT dump pipe vs MSR dump pipe

[bass_straitener]

Yeah sounds great, has a very deep sound to it (travels right through our house when the car is warming up idling at 1500rpm which Mum hates) but not loud if that makes any sense. No noise cruising at 60kmph in 6th (car has enough torque to happily do this).

No idea what peak torque is, but it's enough to reach the limits of my tyres foot to the floor from rolling

Or for that matter in 6th at 60kmph.

[Kekotic]

You guys don't take off from a stand still in 6th?

[mynameisdaniel]

I'm always cruising around in 6th... As soon as I get to 60 and know I just have to maintain speed I put it in 6th and happily cruise along. No point making the car sit at higher revs than it needs to

[dr20t]

I'm always cruising around in 6th... As soon as I get to 60 and know I just have to maintain speed I put it in 6th and happily cruise along. No point making the car sit at higher revs than it needs to

Stop doing this please it makes my ears hurt

[mynameisdaniel]

I'm always cruising around in 6th... As soon as I get to 60 and know I just have to maintain speed I put it in 6th and happily cruise along. No point making the car sit at higher revs than it needs to

Stop doing this please it makes my ears hurt

Problem?

[agan]

Reuben - Wasn't sure if the auto box holds it at 4 or 5 when cruising at 60/70. Drones like crap when I had the ultrex quads/tbe setup. MUCH more bearable with the TBSTI quads.

[peadya100]

Reuben - Wasn't sure if the auto box holds it at 4 or 5 when cruising at 60/70. Drones like crap when I had the ultrex quads/tbe setup. MUCH more bearable with the TBSTI quads.

My auto gearbox puts it into 5th at 60kph.. not sure why.. must be better for fuel economy???
Ive always owned manual cars before this one and used to stay in 4th until 70-75kph.

As for drone, i have the Hi-Tech quads and my car is silent at cruising speeds... the only time it gets louder is under load and even then its certainly not unbearable. Unfortunately if you want more power, more noise is an almost unavoidable by-product.

[spec.B]

Appreciate the insight guys.

What's generally the next step (and associated cost) after upgrading exhaust? Injectors/fuel pump and then turbo?

Trying to figure if I'll be disappointed with just exhaust and tune, and should perhaps look at going one step further to avoid another wasting money on another tune in the future.

ninja edit: before anyone suggests, ethanol is off the cards, I just don't see it being a practical option.

MSR will recommend a new intake - $400 installed. He said it gives you 4-6kw across the rev range and makes the turbo spool up sooner. Plus it gives the car a great turbo whistle sound.

Exhaust and tune combined with the intake will be more than enough for your first step. If you wanted to go further you could get the bigger turbo like poida did but its going to cost you around 1600 installed on top of the rest of your work. And MSR pushes the blouch turbo's which are another $400 dearer than the VF52 that poida got.

MSR claims that changing the intercooler gains you nothing at the power we're dealing with and warns that its a big waste of money.

I looked at the fuel pump and injectors idea.. it will gain you some power but will obviously make you go through fuel a lot faster.

I will eventually get the bigger turbo, but am glad im doing it in 2 stages... but if you have the money to do the turbo now, it will save you 300-400 on a retune.

Ok, sounds like you've got it sorted, intake + turbo back exhaust to stock mufflers and a tune, which is back at square one what MSR suggested anyway.

Experienced opinion was on the money, who'd have thought?

Re the fuel; I'd have thought fuel consumption was a function of energy used, rather than the fuel pressure/max flow rate the pump can deliver.

Just to clarify, you seem to think power limitations are due to turbo capacity at high rpms, and a larger turbo is "stage 2" per se?

[Kekotic]

Re the fuel; I'd have thought fuel consumption was a function of energy used, rather than the fuel pressure/max flow rate the pump can deliver.

Just to clarify, you seem to think power limitations are due to turbo capacity at high rpms, and a larger turbo is "stage 2" per se?

Correct.

The only way to push 200 on the stock turbo is with E85.

[bosc0]

I'm always cruising around in 6th... As soon as I get to 60 and know I just have to maintain speed I put it in 6th and happily cruise along. No point making the car sit at higher revs than it needs to

Stop doing this please it makes my ears hurt

Problem?

Doing so will make you car labour and thus causing your drivetrain to wear out quicker than it should. You'll most likely end up with rattles due to the vibration caused by the labouring. Not to mention your fuel consumption would be greatly increased by doing so.

I would not put the car in 6th at anything under 80kph.

[alessandro132]

Jake, if you're on a flat surface and maintaining a constant speed surely if anything you'd be causing less strain on your drivetrain given it will be operating at lower rpms?

Edit: for the post-facelift, what would sixth be revving at if you're going 80km/h? I know pre-facelift sits around 2000rpm

[bosc0]

Fine line i'd say. Coasting in 6th @ 60, maybe. I'm sure you'd feel some lash as soon as you tapped the go pedal. But if you are on the gas at all @ such low rpm, it aint going to be good. There's no need.

Right gear for the right speed. It's why you have 6 of them.

[mynameisdaniel]

Yeah the car definitely doesn't labour in 6th at 60. I can accelerate still (obviously slowly). The car won't labour until it gets under 50kmph, at which point 5th gets used

[bosc0]

I can accelerate still (obviously slowly)

Read: labouring.

[peadya100]

Ok, sounds like you've got it sorted, intake + turbo back exhaust to stock mufflers and a tune, which is back at square one what MSR suggested anyway.

Experienced opinion was on the money, who'd have thought?

Re the fuel; I'd have thought fuel consumption was a function of energy used, rather than the fuel pressure/max flow rate the pump can deliver.

Just to clarify, you seem to think power limitations are due to turbo capacity at high rpms, and a larger turbo is "stage 2" per se?

Yeah stock turbo cant hold the boost pressure for long.. where as larger after market turbo's can hold the pressure right through the rev range.

Much to MSR's disgust, i went for after market mufflers which im glad i did... i love the sound of my car now!! It certainly doesnt sound like a bankstown wrx so dont be too worried about that.

As for fuel usage, i agree with what you said, but to gain peak power they increase the amount of fuel injected, thus increasing usage. Of course thats only going to be an issue when youre flooring it... but lets face it, youre not modding the car to drive it at 2000rpm.