Rick, I know every run is expensive, but for folk everywhere, it would be nice to know how much better the crankcase evacuation system really helps the e.t. (in your application anyway). Any plans to do a back-to-back run with/without CC Evac to see the difference yourself? (I realize the actual difference will vary, but it would be good empirical data). BTW, which pump and what size lines are you using? Do you have a "throttle" to limit the amount of vacuum? Best of luck to you next season.
I did that for my youngest son. He was at school and it was "Parent's Job" day. He had video of the car and I bought him an inexpensive prepaid cell phone. His mom set it up with external speakers so the class could hear. He showed a video of the car then called me while I was in a test/tune session. I fastened the phone to my driving suit with velcro and took the whole class on a run from burnout to shutdown area. It was great! He also got an "A" for his presentation. The kids loved it. :bananaman
Rick I had to go back and and dig up the time sheets to draw a comparison,we've had a CC evac system on the car for quite some time, the one in the pic is new. The first couple of weeks we ran the car without one. Track conditions and temps etc. being almost the same the best time without the system was a 6.104...the following week with, was a 6.077..this gain was strictly on the big end...there was no difference in the 60' or 330' time. The vacuum is created by exhaust flow at the header collector...I've never put a vacuum gauge on it but it's pretty significant, the crankcase being under a negative pressure and the crank itself being knifedged is probably good for a half a tenth. The vacuum is not so much that it will draw oil into the baffles. Hope I understood the question correctly.
Thanks Eric,,,I was skeptical about the POR-15 to start with, I figured the headers would be at Jet-Hot about now. The only problem I had with it was where my prep work wasn't good enough, after prepping those areas again, applying another coat and letting exhaust heat cure the paint .... boy howdy, this stuff is tough as nails, you'll also notice there is no discoloration on the pipes like you see on some coated pipes, you have to follow the directions to the letter. Here's a tip...after rust removal clean the headers with Automotive prep cleaner(lighter fluid) then don't touch them again with bare skin...use nitrile gloves, every place there is a finger print is gonna show when the heat is put on them.
That guess would be correct Dennis...the only thing is I don't recall there being a lot of shut down area after a pass...I'll worry about that when we get their though...of course you could volunteer to ride shotgun..a couple of extra hundred pounds could help me get it slowed down ...
Alan and Lance...track opens back up in mid february...if yall send me you phone numbers and remind me I'll be glad to do it...wish I could figure a way to video tape it from inside the car
i need to go wipe the tears from my eyes... that is just beautiful... i love that engine bay... you have one KICK ASS car there... keep up the good work.. !!
you might have to change the name from Plumb Crazy to Corn Popper if you go through the corn field! I remember the shut down area was very short for a fast car,just make sure those brakes are good and tight!
Valve covers and breathers came from here Mike...http://www.musclemotors.com/... ya think this will fit in their? .....
