With the first pass of the night, I was thinking of leaving the KSB off during launch so as to benefit from the increase in power in the lower engine rpms. Once things wound up, I would then turn on the KSB so as to have it's benefit in the upper engine rpms.
Welp, I made the first pass with my typical launch using 20ish psig of boost. Frigging thing shot straight to 55(+) psig instantly and spun the tires in four wheel drive coming out of the hole. I had to get off it some to regain traction so my ET was slower than I would have liked. . . . . still beat the chit out of a late model Duramax Diesel . . . . . bad.
![Laughing :lol:](./images/smilies/icon_lol.gif)
In the following video, you can see me bring the engine up to about 2200rpm (tach on steering column) with the boost coming up to about 23 or so psig (gauge farthest to the right on the dash). Watch the boost jump to over 50psig when I hit it. You can see me feathering the throttle on the tach afterward.
(I'm running with the rear window closed this vid so you won't hear the exhaust so loud as compared to my other vids).
Best viewed Wide Screen @ 1080dpi
http://www.youtube.com/watch?v=S5vA6fZ0DtQ
I only got in three passes tonight with the best being 8.19 (1/8th mile). I tried a couple of different KSB switch combinations along the way. My all time best at this track is 7.97 IIRC.
The first pass, with the KSB off initially (turned it on much too late) and spinning the tires netted a 8.76.
The second pass with the KSB on from the start netted an 8.19
The third pass, I tried launching with the KSB off and then turning it on at about 2500rpm in second gear. Duggum folks! It's HARD to lean forward and stretch your arm out to that little switch while it's pulling through 2nd! Ran a 8.33. Screw it. I took it home.
- The fuel pressure is dropping from 12psig to a little above 10psig at WOT (consistent with the old IP).
- The WOT boost is slightly up @ 56 ~ 58psig (from 55ish).
- The MAX EGTs are about 100* lower @ 1500*F
* I think the variations noted above are possibly due to different injection event timing.
Based on things observed at the dyno the other day, combined with the way things acted tonight, and some other stuff. I've got a good idea what I need to sort out next.
![Twisted Evil :twisted:](./images/smilies/icon_twisted.gif)
- I've got to install an IP case pressure sensor (as part of the the ISSPRO DATA logging thingy).
- Make and install a timing-tape on the harmonic damper.
- USE this stupid thingy . .. .
![Image](http://i169.photobucket.com/albums/u237/BuiesCreek847/VE%20Injection%20Pump/Timing-Light_zpsd57e9c80.jpg)
- Adjust something else.
![Idea :idea:](./images/smilies/icon_idea.gif)
![Image](http://i169.photobucket.com/albums/u237/BuiesCreek847/Random%20Images/madscientist_2.jpg)