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

[Murlo26]

So today starting logging the new MAP, which slowed spool down because it was surging. So backed MIVEC down.

Here is what happened with boost when it surged.

http://i21.photobucket.com/albums/b252/Murlo26/toomuchspools.jpg

Keep in mind, warmer now then when I took the last logs by about 30degrees.

http://i21.photobucket.com/albums/b252/Murlo26/92412run1.jpg

Then, second run, found some issues it looks like.

http://i21.photobucket.com/albums/b252/Murlo26/92412run2.jpg

I did these runs about 2 mins apart, so we are thinking I simply emptied the basket where the fuel pump sits. So looking like I might need a surge tank anyway :(

At around 7500 or so I stop watching fueling and start watching rpms for letting off for shifting etc and watch knock. The car didn't knock at all above like 6k, just small stuff lower down which I think is motor noise.

The new fuel setup has plenty of fuel pump I think its just at lower tank levels the basket drys up now. I was at 1/4 of a tank.

So I guess over the winter its time to research surge tanks.

[Tachyon]

Stop fucking around and fuel cell the bitch.

[turbotalon1g]

Stop fucking around and fuel cell the bitch.

x2.

[simulatedwood]

Or just don't rip it when out of gas. That would be the least expensive solution. Is there any way you can have the tune flagged for this condition and let it not let it destroy itself? I mean yeah a surge tank ...fuel cell ... thing a mabob.. etc.. Would take care of this but eventually a car runs out of gas. It does happen.

Shawn

[turbotalon1g]

^that is foolish. Fuel cell please.

[Shane@DBPerformance]

Just don't run it below half a tank.

[scheides]

Or just don't rip it when out of gas.

This.

[Murlo26]

This.

I am used to that, I am simply testing out my new fuel system. I was hoping to be able to still beat on it at 1/4 of a tank, but looks like its still more or less 1/2 and up to be safe.

Do you have issues when you get lower in the gas tank or emptying the basket of fuel too fast?

[Murlo26]

Did a bunch of logging tonight, high rpm low load stuff (5,6k rpms), set up 2step, did 2-3-4 pull and a new 3rd gear pull seen below. Different road than last time, shits never too consistent for me, always around 585-610whp though so whatever.

http://i21.photobucket.com/albums/b252/Murlo26/92612-1.jpg

New MAP going on tomorrow, target boost of 32psi. The car rips right now.

For those who could be curious...what AFR, boost, timing, knock look like on the one above.

http://i21.photobucket.com/albums/b252/Murlo26/logs.jpg

[simulatedwood]

Looking good Dave! Going to be awesome to see this finally get down the dragstrip!