You must be logged in to rate content!
4 minute(s) of a 66 minute read
5-30-2010
There are a bunch more videos than that. I'm guessing he'll get the rest up today.
We run our Mickeys at 20ish psi. Seems to work good. The surface was real decent also. Only spun a little bit once and it was around the 100' mark.
6-16-2010
Just a followup. Steve got the power steering bracket last Friday and installed it this week. Works like a champ.
He also changed his mind about sending the transmission pump back to have it modified to flow the transmission fluid thru the cooling ports. Instead he bought a Tilton pump and drilled and tapped the pan. Let's see how that works.
7-31-2010
We finally made it back to the track last night. Seems like trans temps are back under control with the addition of the pump to circulate the trans fluid. I've been wanting him to try a 275/60/15 tire as most DR classes are limited to that size. He bought a set of Hoosiers and tried them out. Track prep was so so but the tires seemed to work fine.
The problem with the boost bleeding off over 22 psi presented itself last night again. Not sure what's up with the BOV but it is cracking open again on him going down track. Turn the boost down to 19-20 psi and the problem goes away. I thought that perhaps the manifold signal line was leaking but it seems to be fine. We'll get it figured out.
BOV is cracking open during the pass at around 7K RPM which seems to be right when he kisses 22 psi of boost. The boost literally just falls off a cliff. Drops to like 3 psi within a second or so. We were having this problem before and added a spring to the BOV. We were able to see almost 30 psi last time out after adding the spring. Now all the sudden the problem is back. When he turns the boost down to about 20 psi, it's solid all the way down the track.
Also, the BS3 WBO2 is flaking out still. He replaced the sensor but it is pegging out at 14.5:1 again. He may have a bad plug or wire that is causing it to freak out. It sucks because the BS3 wants to go full correction but because it's a false reading, it dumps fuel and fattens up the car which then makes it surge. So I had to shut off the positive correction last night again.
The only clean full pass was 8.77 @ 18 psi. The only thing that we accomplished last night, besides sweating our ***** off, was determining that the new trans cooling system worked and that the 275/60 will work.
I agree that it doesn't make any sense unless he is losing the boost signal somehow on the top of the BOV. It is acting just like it did before we added the second spring. Once he added the second spring, we cranked the boost up to almost 30 psi and it held fine on our last outing. I would think that if it was going to float the valves, it would have done it then. This is happening at or before 7K RPM. This valve train is good to 8500 or so. When I say that the boost falls off, I'm talking about a nice smooth but very fast slope. Think ski jump. For instance, it drops much faster than if you just turn off the controller and go to spring pressure (about 6-7 psi).
Steve is doubting the BOV as well but, I dont think that plugs and/or wires will fix the boost issue.
