Oakley's History Lesson and Build Thread
#273
im commanding 18* i was looking at my last log and it was only showing 15.5*
160kpa showing on the scanner
i need to fix my pinion angle, because im getting some bad vibrations at hard acceleration and it showing up as knock
160kpa showing on the scanner
i need to fix my pinion angle, because im getting some bad vibrations at hard acceleration and it showing up as knock
#274
How much boost and timing are you running right now? I'd imagine that my set up should easily be able to handle 15* of timing at 10.5lbs. I'd like to up the boost too but I know I'm on the edge of my fuel pump right now. I have only done pulls halfway through 2nd gear and haven't seen it go lean but I'm sure the pump wouldn't be able to keep up if I ran it down
13.5-14 psi with 14* timing
It seems conservative, but it's also a 10.5:1 motor. I really need to get that second 450 in and turn he boost up rather than jacking the timing up. I'm also on the limits of the 2 bar MAP as I've seen peaks up to about 205 kPa. Want to get a 2.5 bar from Gadgetized.
#275
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
Yea if I remember right, I'm sitting right at 9.4scr. So I know I'm waaaay to conservative at 13 degrees of timing, especially on E85. I just bumped it up to 15* and will take a drive here in a sec.
#276
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
I didn't get any knock at 15* and it pulled really well. I actually lowered the boost under 10psi, set spark at 15* and it still blew the tires off through first gear, and pulled really hard through most of second. I will up it to 16* and probably stop there for now. E85 is the ****
#277
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Look at my fuel injector flow thread in the full section, it will tell you where you are in terms of injectors and pumps. Be careful about too low of timing, egts will go way up, i melted a turbine wheel that way.
#278
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
I have it up at 16* right now. I just bounced it off the rev limiter a few times like an idiot. The road had dirt on it and I just kept thinking it was going to hook. Never did. So hopefully it didn't hurt anything.






