Echoman
02-06-2006, 06:10 PM
Hey guys I just had my car tuned at Loganmotorsports and I can't say enough about those guys. I liked my car before, but I love it know. Dewayne can chime in with the extra stuff he helped me whith and maybe what HP I started with when I got there. I have 205 at the wheels now. Check out my plot in the dyno plot thread.:biggrin:
StealthyWeasel
02-06-2006, 06:35 PM
hybrids! blasphemy!
Nice work! any issues with the idle and the lightweight flywheel?
Logan Motorsports
02-06-2006, 09:35 PM
Eh, I'll just post the plot in here to make it easy for people to see.
http://i50.photobucket.com/albums/f334/LoganMotor/Rob_Kopala_HP.jpg
When Rob brought the car to us, it was so far out of whack we didn't dare make a full dyno run. We made one run to 4500 rpm, but the air-fuel was hanging in the mid 16's (very bad, I know), so we just went right to work on it. At the data points we did get however, he was down as much as 25 lb-ft on the low end compared to the final run, and I imagine that horsepower would be down equally on the high end, if not more.
We also had a problem with his IMRC's not operating properly. What would happen is they would open and close 2-3 times during the run, when they should have just opened once and stayed that way. At first we thought it was a mechanical problem, but I decided to check Ryan Tennant's tuning file to see if there was any difference in the IMRC control tables (Ryan has a 3L Hybrid and so does Rob). Even though Ryan's car and Rob's car are the same year, they have completely different processor codes. Despite this, I was suprised to see that they also had completely different IMRC tables as well. I decided to load all the values from Ryan's file into Rob's, and it completely cured the problem. Rob must have different IMRC hardware than what originally came on the car, and thus he needed something different to control it. That's the best assumption I can make. Honestly I doubt he would have ever even realized that he had a problem unless he had the car on the dyno, he certainly never noticed it before that point.
All in all it ended up running really good by the end of the tuning session, very nice looking car as well.