Mods help!

[Nate8920.]

Hey all

About to do some mods to my 07 liberty gtb. Looking at k&n CIA, borla tbe, water injection kit, bigger intercooler, and a tune. Can the internals of my engine handle these mods. Does anyone know how much power the engine can hold and how much boost it can take without having to change pistons, rods, cranks etc?

Any help would be greatly appreciated.

Thanks

[Kekotic]

There is only so much you can get out of the VF46 turbo, so if you aren't running an aftermarket turbo you won't be able to get 200 atw (on a non pulse dyno), so the stock internals can handle that sort of power.

[bass_straitener]

Hey all

About to do some mods to my 07 liberty gtb. Looking at k&n CIA, borla tbe, water injection kit, bigger intercooler, and a tune. Can the internals of my engine handle these mods. Does anyone know how much power the engine can hold and how much boost it can take without having to change pistons, rods, cranks etc?

Any help would be greatly appreciated.

Thanks

You missed a very important mod being a better aftermarket fuel pump.

[rooby]

There is only so much you can get out of the VF46 turbo, so if you aren't running an aftermarket turbo you won't be able to get 200 atw (on a non pulse dyno), so the stock internals can handle that sort of power.

Agreed, I have upgraded TBE, TMIC, hi flow panel filter (I also have bov and pulley kit but their benefit is negligent) and a tune and I make 168atw (non-pulse).
I would not bother doing anything else to my car performance wise until I go to a bigger turbo. Then i'd do FMIC, fuel system, clutch etc.
I could possibly get 10 more kw out of the current turbo but there isn't much point.

Another thing to note is while you can run the bolt on parts without a tune, you car will not be running well. After all my parts were fitted with no tune, my initial dyno run was 108 atw
So the sooner you can tune it after all the parts go on the better.

[rooby]

Also, to answer your question, Phat has mentioned numerous times you can get up to (or at least within reach of) 250kw atw without having to do internals.

[Nate8920.]

Ok so fuel pump and maybe some bigger injectors!
Any other mods that have proven to be worth while?

[Kekotic]

Nate, you are fucking missing the point.

There is no point changing the injectors, or even the fuel pump for that matter if you are sticking to the STOCK TURBO.
You are just wasting your money on this shit because it will give you no benefit.

3" Turbo back exhaust, TMIC, Turbo inlet pipe and a aftermarket panel filter will basically push the VF46 to it's limits. You don't need anything else after that (other than the tune). Even the TMIC is not really beneficial other than it's better on hot days.
You need to look in to a better turbo if you are serious about power. VF52 is great if you are after the 200-220 power range, and they are pretty cheap too.

[bass_straitener]

Ok so fuel pump and maybe some bigger injectors!
Any other mods that have proven to be worth while?

Looking at your original post, here's what I think.

CAI won't add any value except for sound. The stock box and panel filter will see you to 200kws. Unless you want the sound.

Invest in a better fuel pump. Leaning conditions will definitely cause your engine to fail prematurely and withhold performance.

The GT has 560cc injectors stock. Plenty to get you to 200kws.

The key to modding a car is flow. Get the air in efficiently and exhaust out. So intake pipes etc are good as they're restrictive on the GT. You've got exhaust covered.

Ultimately what are your goals. Let us know and it would be easier to advise.

[bass_straitener]

Nate, you are fucking missing the point.

There is no point changing the injectors, or even the fuel pump for that matter if you are sticking to the STOCK TURBO.
You are just wasting your money on this shit because it will give you no benefit.

3" Turbo back exhaust, TMIC, Turbo inlet pipe and a aftermarket panel filter will basically push the VF46 to it's limits. You don't need anything else after that (other than the tune). Even the TMIC is not really beneficial other than it's better on hot days.
You need to look in to a better turbo if you are serious about power. VF52 is great if you are after the 200-220 power range, and they are pretty cheap too.

Kieran, whilst your telling everyone they can't make 200awkws from the stock turbo, I'll go about doing it. It an be done and even Vin says it can be done. Who told you it can't. When I next get my mods and tune done I'll be at 200 or very close.

[iisshhyy]

Doing mods around the stock turbo will give you some benefit, but not to the point where you need to worry about engine internals. If you're chasing serious power, speak to PHAT or someone who has done a power build on these cars before and learn from their mistakes.

Going on what Kieran said, try looking at it this way. You have a stock turbo that can put out X amount of power with the existing amounts of air / fuel it's getting. By feeding it extra air / fuel, is the power output going to increase by a whole lot? Modding cars effectively isn't as simple as throwing parts at it, all the parts need to be working together. i.e. putting the worlds biggest turbo on to a car without addequate fuel injectors / pump isn't going to work all that well.

Also, consider upgrading your swaybars & LCA bushes. Performance doesn't stop at power upgrades.

[Kekotic]

Kieran, whilst your telling everyone they can't make 200awkws from the stock turbo, I'll go about doing it. It an be done and even Vin says it can be done. Who told you it can't. When I next get my mods and tune done I'll be at 200 or very close.

On a legit dyno like the Springy dyno, you cannot get 200 atw with the stock turbo.
Nobody on this forum has.

Take your car to the springy dyno once you get your next tune at Revzone and see if your 200 tune breaks 200 on that dyno, I doubt it will.
The person who told me the VF46 cannot make legit 200, has modded many, many libs. I don't think I need to say the name?
If you want to contest that, speak to him. It's your word, a new liberty owner who reads stuff on the internet Vs. a guy who has been modding these cars since day one.

[bass_straitener]

Sounds like another dyno day is in order.

You're right that I'm new to modding Libs but I've modded many cars in the last 20 years.

I spoke to Vin at length, since he did put together the tuned by STI, at the last WRX club meet in particular about the liberty STI and asked specific questions about the existing setup and it's capability and he said 200kws is achievable.

Now I might read a lot, but that's one of the best ways to gain knowledge. I also speak to people who've done great things, but dont write on forums about it. Doesn't mean it didn't happen.

As I said, you organize the dyno day and all will be revealed till then we'll have to agree to disagree on this one. Til then the debate will rage.

[Jim]

lol @ Dyno queens.

Dynos can put any number you like on a piece of paper. Its worthelss.

Want a REAL power figure? Put it down the strip and calculate it that way. That will give you a MUCH better indication of whats going down to the black stuff.

A dyno is a tuning tool and not much else. As long as the tune is rigid, reliable and the car drives well, there should be nothing more to it.

Even with the same mods, any dyno will give you a different number. Its purely just that, a number you can flash around to your mates.

Go for gold and have the car tuned the way YOU want it, give yourself a goal and dont let a simple worthless number dictate how your going to do it.

When im finished with my last few mods, its off for a tune to get everything singing together and then down the strip it goes!

[dr20t]

Agreed Jim

Good old Xmas tree will always separate dyno queens from the men

(but then you get the excuses lol)

To the op

Vf46 can make 200 on a dyno but it will not be efficient or reliable.

To make serious power you need a turbo upgrade, fuel pump, injectors, proper boost control and the right intake temps.

Good luck
Mick

[Jim]

Out of curisoty, i know new TD05's in all their trim levels are fairly cheap and accessable, such as Kando, Kinugawa ect.

How would our cars fare with the bigger older Subaru turbos? Such as VF22's, 23's, VF34P20 hybrids ect?

The VF34 with a P20 housing will get you easily plenty of power, tried and true. Has anyone ever experiment with an older style turbo?

I do realise the dont match the TMIC but for those of us with FMICs, they can easily be added on.

Thoughts?