AVO turbo kit

[robr]

Originally Posted by tirespin782

Is this on their stock compressor wheel or with the billet compressor wheel upgrade?

Only upgrade was the wastegate. Car had Perrin intake, 3" catback, base AVO kit with upgraded wastegate. Probably could have made more power if the new wastegate was capable of holding even 1 bar well.

[protpibe]

If you want 3" with the AVO kit you have to buy their entire front/mid exhaust section kit. It comes with a downpipe, overpipe, and front pipe. You can't buy these pieces individually because they change the routing and flange locations. This setup without catalytic converters will yield the most power but be prepared for some boost creep.

Upgrading the stock front pipe only to a 3" diameter but keeping a 2.5" overpipe and downpipe is a waste of time imo. Even getting rid of the secondary cat in the front pipe probably won't do much (relatively speaking)

[Basket Case]

Originally Posted by protpibe

If you want 3" with the AVO kit you have to buy their entire front/mid exhaust section kit. It comes with a downpipe, overpipe, and front pipe. You can't buy these pieces individually because they change the routing and flange locations. This setup without catalytic converters will yield the most power but be prepared for some boost creep.

Upgrading the stock front pipe only to a 3" diameter but keeping a 2.5" overpipe and downpipe is a waste of time imo. Even getting rid of the secondary cat in the front pipe probably won't do much (relatively speaking)

Why would there be boost creep?

[protpibe]

Originally Posted by Basket Case

Why would there be boost creep?

My assumption is that The exhaust flows too quickly for the the tiny little internal wastegate to keep up when there is almost no backpressure (no cat and 3" dp).

Mine was creeping about 2ish psi

[WallsAndFoundations]

Originally Posted by protpibe

If you want 3" with the AVO kit you have to buy their entire front/mid exhaust section kit. It comes with a downpipe, overpipe, and front pipe. You can't buy these pieces individually because they change the routing and flange locations. This setup without catalytic converters will yield the most power but be prepared for some boost creep.

Upgrading the stock front pipe only to a 3" diameter but keeping a 2.5" overpipe and downpipe is a waste of time imo. Even getting rid of the secondary cat in the front pipe probably won't do much (relatively speaking)

Thanks for the input! Stupid question though.. what's boost creep? I have never heard of that term.

Is it when someone someone tries to hit on me for having a turbo?

[robr]

Originally Posted by WallsAndFoundations

.. what's boost creep? I have never heard of that term.

It's your friend on E85.
it's a pain on pump gas, especially if you're going for a fairly aggressive tune.

[protpibe]

Originally Posted by WallsAndFoundations

Thanks for the input! Stupid question though.. what's boost creep? I have never heard of that term.

Is it when someone someone tries to hit on me for having a turbo?

No thats boost creepin lol

If your wastegate is 7psi, but you start hitting 9psi

[WallsAndFoundations]

Originally Posted by protpibe

No thats boost creepin lol

If your wastegate is 7psi, but you start hitting 9psi

Haha another stupid question: let's say I'm set up correctly for a decent amount of boost (reinforced clutch and all that), it almost sounds like boost creep would be.. good..?

[WallsAndFoundations]

Originally Posted by robr

It's your friend on E85.
it's a pain on pump gas, especially if you're going for a fairly aggressive tune.

Thanks for the answer! How come it's an issue on pump gas?

[protpibe]

Originally Posted by WallsAndFoundations

Haha another stupid question: let's say I'm set up correctly for a decent amount of boost (reinforced clutch and all that), it almost sounds like boost creep would be.. good..?

The not good part is the lack of control

[robr]

Like it's been said, boost creep happens because you aren't able to control boost 100% (for various reasons, none of which really matter to your question).

The main problem with boost creep when tuning is that you're basically trying to consistently tune for an out of control state. It generally is the same under the same conditions, but the "generally" part is the key word. So you're assuming the amount of boost creep will be the same every time, every day, every weather/elevation/whatever conditions. Which, if you haven't guessed, is a very large assumption.

As to pump vs E85, there's just a MUCH larger factor of safety on E85. Of course, an E85 tune that is way too aggressive would not be good either, but hopefully nobody tunes like that.