Dave's Evo X Build/The Life of Dave blog

[Kracka]

I'm sure it feels awesome up top, but that low and mid leaves a lot to be desired.

[Shane@DBPerformance]

Boost creep is a pain in the ass. I have to deal with this kind of shit a lot with the cold weather here, which makes boost creep much worse. The VF52 Subaru's get it bad with a catless downpipe for half the year here, they are often fine in the Summer, then it gets cold and then you can't keep the boost from going over 20psi on it's own. With the newer more efficient big turbos nowdays, it happens easier since the turbos just want to make boost and you end up having to set a low revlimiter if running on pump gas. I have an Evo 8 here now with a 35R on it that boost creeps to 30psi no matter what and it's a pump gas car. If you run less ignition timing to try to keep it from knocking, then the boost creep gets even worse.

[Murlo26]

They were trying to run wastegate boost on this car that I posted which is 15psi. It's a pump gas car and the single wastegate got over run. He said it spiked to 34 psi at 7k rpms.

So it was more of a funny picture, but it looks like the turbo is pretty potent on a similar motor, I am excited.

So the torque is low down low just because it starts out at 15psi.

[Kracka]

Wow, that's crazy. I know Cobb had to add a 2nd external wastegate to Chkmgnt's car for this very reason.

[Murlo26]

Wow, that's crazy. I know Cobb had to add a 2nd external wastegate to Chkmgnt's car for this very reason.

Glad I have twin comp gate 40's going on this thing, that is all I am saying! :)

Should be interesting...twice the wastegates means twice the epic ear splitting dump pipes!

[Kracka]

Have MAP recirculate them for a more pleasant WOT tone.

[Murlo26]

Have MAP recirculate them for a more pleasant WOT tone.

Hmmm, nah....

I like the noise :) And the extra power. If it gets annoying I will have them modify it later.

[Kracka]

I don't buy the extra power statement [assuming a properly sized and designed exhaust system], but to each their own :)

[Murlo26]

I don't buy the extra power statement [assuming a properly sized and designed exhaust system], but to each their own :)

I dunno, I have seen plenty of results showing gains by switching from a non dump to a dump and picking up significant power.

If I didn't do the dump I would think I'd want a 3.5" exhaust at that point.

It's what I am getting for now so I will go with it.

[93gtpeater]

Murlo needs to save his money so he can buy a corvette in a couple months.