Thursday, February 21, 2019

Prep Work For SearsPointless 2019

Sorry, we have been quiet on the blog but not quite working on the cars.  We are steadily getting ready for the March 9-10 Lemons race.

We ran the Z in the at the Lucky Dog Racing League at Laguna Seca.  As noted when running the car did well.  However, the fix on the fuel system did not work, and we struggled all weekend with it.  At the end of the race, we still were having problems, and could only run for about 30 minutes.  I was in the car for its last stint and after 8 laps the car power dropped off and I could only chug up the hill.  That was far from racing, and with 30 minutes left we though tit was terminal, so we parked it.

Post race we have done our engine compression testing.  Here are the results:

Z
Cylinder

1
2
3
4
5
6
preRace
170
175
180
180
180
190
Post Race
180
170
180
195
190
190


D
Cylinder

1
2
3
4
Pre Race
170
190
190
205
Post Race
180
210
195
205

Nothing wrong there, so we feel with some punch list work each cars' engines are good to run.

As for the major repairs the D after the Sonoma Race needed a new transmission.   I happen to have one laying around (it is amazing the things one has after 10 years of racing), so that was installed on a fine December day.  The second big item for the D was for it to come in compliance with the new Lemon's rules for 2019.  The particular issues is a Fire suppression system, which equipment has been installed.  To finish that project we need to finish the wiring, control placement, and labeling.  After that we are on to the punch list.

For the Z, it is clear that the fuel system needs to be addressed.  There are several spots where the trouble could be, but without the luxury of road testing and time, figuring out which system is causing the problem has proven hard.  So, that leaves us with the option I have been trying to avoid, scrape the internal working and go to a surge tank system.  Here is our basic design:



I have ordered the parts, now we are awaiting there arrival, so they can be installed, and move to punch list items for the Z as well.


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