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4 minute(s) of a 66 minute read
8-2-2010
Steve called me last night. He did get a chance to check the plugs. Turns out that the tip that unscrews on the end of the plug had backed itself out. When he pulled the wire off, the tip came out with it. All the plugs look good except that one. It also happened to be in the same bank that the BS3 is reading. Probably why the O2 correction was flaking out.
He's going to drill and tap another vacuum/boost port into the intake so that the BOV and the FPR get a good strong signal. Right now there is only one 1/8 port on the intake that feeds a vacuum manifold. That block has about 2 ft of line feeding it. There are 2 MAP sensors in it and then the line that feeds the BOV and FPR is another 4ft run. BOV is last in line. I think it may be a weak signal not providing the neccesary assist. When the boost comes in fast, the signal isn't making it in time and cracking the BOV open which looses boost which weakens the signal more and so goes the downward spiral.
We'll be back out there Wednesday night, weather permitting.
8-28-2010
We took the car out last night again with the new spragless converter. He broke the sprag and the stator on the Pass Time Show.
First pass comes out and car is backfiring out the exhaust 3-4 times thru first gear and then clears out. Check the log and there is no data from the BS3.
Second pass, pops only twice thru 1st gear and clears out. Check the log and it's there. Damn wideband is flipping out basically reading full lean. I review the fuel table and determine that it might need a little more fuel where it was popping but I knew it wasnt causing the problem.
Third pass, same **** but then shut off. Coasted to the end of the track and pulled him back. Pump wouldn't come on. Tried turning it over and no compression. Looked in the valve cover thru the fill hole and the rockers aren't moving.
Pretty sure he sheared the cam bolts off the cam sprocket or they backed out. Cam was walking after the launch and advancing/retarding causing all the backfires. He said it would feel silky smooth after the backfiring cleared up. VVT for the loss. LOL
Hoping that the dish piston, big chamber, and low lift cam (.610ish) combo has enough valve clearance that nothing hit. He said it didn't sound ugly when it died and spun freely when I heard it. He should have it apart tomorrow for a confirmation.
He's already decided to take the car down to check out some stuff. Transmission is going back to Rossler to get the trans cooler lines pumping again. That external pump bullshit is for the birds.
Engine is going to Total Engine Concepts to check bearings, rings, valves, machine surfaces, etc. He was going to do this soon, regardless, as we are curious what sort of pounding this power is giving to the motor.
Big Stuff 3 is going back to get checked out. They need to check out the wideband issue that we been having.
He'll be down about a month.
8-29-2010
The old "cam dowel on the oil plug" trick.
Motor is out and the front cover is off.
Looks like the bolts backed out (yes, they had loctite) and sheared right off. These aren't stock cam bolts, they are ARPs.
