David Flynt

There is a lot to stay on top of in between sessions, end of day, and prep for the next event. A good list can be found in the owners manual which is pages 49-50 for the newest version of the SR3 XX....

Posted by: @rlm-dan I have seen one recently where the voltage was dropping off enough that an engine would start and die -- I think the voltage was dropping off low enough on start that it was effec...

Swapping the throttle bodies did not help isolate the problem. I swapped throttle bodies on both cars. The problem car had the same problem -- fires and dies 1 to 2 seconds later. The good car runs...

I just removed the throttle body from the bad car. I noticed that the injector for number 1 cylinder has about 2mm up/down play in it, whereas the other three do not: Attachment : IMG_6686.jpeg ...

I swapped ECU from bad car to good car. Good car runs well after the ECU swap, so rule out the ECU. I think I have one or two more obvious items to swap -- the throttle body assembly with injectors, ...

@rjbender The manual says 33mm, but it is actually a 32mm. Also, it is a tight fit for a 42mm impact socket, so these need to be milled and lathed down to clear the frame. The shop rag method that ...

Let's call the car that does not run the bad car, and the one that does run the good car to make this a little easier. The bad car is chassis 1351 and has 45 hours total on the chassis, zero or close...

OK, so new plugs. I have to head down to Atlanta, so I won't get to this for a few days. (it is a new engine so I assume it had new plugs and was running well at the factory, but I understand that I...

Posted by: @charleyhradicalsportscarregistry-com I would run the engine long enough to determine if each of the cylinders is heating up at roughly the same rate. ... You may need to do a few 30 secon...

Rule out fuel. I have another SR3 XX and I swapped fuel between the two. The other SR3 runs fine with the swapped fuel, but the problem SR3 still has same problem. The problem appears to be getting ...

@rlm-dan Lots of things to try. I have not had time to look at it since a week ago, so I have not checked spark plugs yet. I had not thought about the fuel, but it is possible that I selected the w...

Thanks everyone for your thoughtful posts. @rjbender -- I put 6 gallons of fuel in the cell. When I did a purge the flow was strong. @parsonsj -- the car and fuel bladder are new. Car built in 2021...

Posted by: @charleyhradicalsportscarregistry-com When you start the engine and it dies, will it start again if you try right away or do you have to cycle the master switch first before it will start?...

rpm looks right in the data. Thanks, I will look at the spark advance. I didn't know it logged that.

@parsonsj Thanks John. TPS stays the same -- 4.1%. Some new info ... I put a zip tie end between the throttle and idle adjustment screw. This makes the engine run at higher rpm initially and the TPS...