Dumbo The Flying Elephant

[Mack Reeves]

Originally Posted by Larry Hill

I know I’m getting better. I’m just not getting better fast enough to gain confidence and be able to evaluate some of the things I would like to find out about. Things like individual cylinder timing, torsional twist of the crank and how to tune for it, timing injection pulse to reduce to reduce energy in the reversion wave in the intake. And all of these things may help or hurt but it would be nice to know.

Larry, I know you want to know everything right now and don't take this the wrong way. I have been in your shoes and had the same thoughts and wanted to know everything all at once. But you are a smarter man than I and I know you will grab all this in time.. Go easy on yourself and take what your mind can absorb and remember.. Just make sure you do save EVERY change you make. This way you can back up to a stage where you know where you are and start from there.. You will get this!!!! I have complete confidence in you.. It's like the old saying "old dogs learn new tricks at a slower rate"... I can say this because I have been down the same road... But , I learned enough to be confident, and it just takes making changes and putting the car down the track or another dyno pull..
Don't beat yourself up... You WILL get this in due time I promise!!!!!

[Larry Hill]

To help avoid confusion on what file needs to be downloaded to see the data log of the run. I will delete the down loadable files from the ECU so only to have a choice of around eight to download for the run. Every time I stated the engine it starts a new file.

[Larry Hill]

The rev limiter works I just hope it was set low enough.

[Larry Hill]

Just picked up my Buxton spring checker, thanks Mr Don showing me your Buxton. It will be a great addition to my engine program.

[Larry Hill]

Just started working on a new set of heads for my small elephant engine. I hope it will run well enough to get in Indy. I still think it should be class winners and the remainder of the field based on qualifying, that will get folks to run them all out. I have never won class in super stock.

[Larry Hill]

8750 rpm spike and the engine leaked within 4% of each other. The Comp springs did there job, Jeff Taylor gave me some good direction, and the Buxton spring checker gave me very repeatable information to set springs from coil bind. I think I will lower the Rev limiter to 8500 just to give me that warm fuzzy feeling.
I would like another Copper Class Trophy from the Sports and a class picture without “The Mask”.

[Larry Hill]

Yesterday I decided to stop tiptoeing around the fear of the tune for Dumbo. I changed a few things with the help of Robin and Jeff. I took good notes I think and tried to use good judgment on not straying to far from the line.