Project Dragula is fixed... No more backfiring
FormerVendor
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
Re: Project Dragula is fixed... No more backfiring I'm glad we got Project Dragula straighted out for you John.
It doesn't hook up too well on the street though. You should send the city of Schaumburg a bill because I used your car to repave the frontage road. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Just to go into a bit more detail on what was wrong with the car.
-The car was tuned at Speed Inc. by BV before we started tuning ourselves. I pulled up the dyno sheets from when it was first done, and the A/F ratio was pretty horrible. (looked like a rollercoaster)
-The first baseline run on the dyno today resulted in 15-1 air fuel ratios and a loud backfire.
-Injector table wasn't even close
-Ignition timing at WOT was at 30 degrees from idle and peaked at 31 degrees (who needs a timing curve)
-PE table, not even close
After I went through and fixed everything, the car runs great and pulled clean to 7k on the dyno, with a perfectly flat 12.8-1 A/F ratio.
It also pulled off some mean highway-speed burnouts <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
It doesn't hook up too well on the street though. You should send the city of Schaumburg a bill because I used your car to repave the frontage road. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Just to go into a bit more detail on what was wrong with the car.
-The car was tuned at Speed Inc. by BV before we started tuning ourselves. I pulled up the dyno sheets from when it was first done, and the A/F ratio was pretty horrible. (looked like a rollercoaster)
-The first baseline run on the dyno today resulted in 15-1 air fuel ratios and a loud backfire.
-Injector table wasn't even close
-Ignition timing at WOT was at 30 degrees from idle and peaked at 31 degrees (who needs a timing curve)
-PE table, not even close
After I went through and fixed everything, the car runs great and pulled clean to 7k on the dyno, with a perfectly flat 12.8-1 A/F ratio.
It also pulled off some mean highway-speed burnouts <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Launching!
Joined: Nov 2001
Posts: 238
Likes: 0
From: Milwaukee Area, WI
Re: Project Dragula is fixed... No more backfiring Glad you got it fixed <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> You've got to be bouncing off the walls!
Did you get new dyno numbers when it was retuned?
Did you get new dyno numbers when it was retuned?
Thread Starter
Joined: Nov 2001
Posts: 45,311
Likes: 1,750
From: Chicago, IL
Re: Project Dragula is fixed... No more backfiring INTMD8 redid the tuning to see if he could fix the backfire problem, they only did two pulls, not to dyno a new number but I think my car picked up 30 ft lbs of torque...
New cam is another big superstroker cam in the 24_/24_ duration range with the faster ramps.
New cam is another big superstroker cam in the 24_/24_ duration range with the faster ramps.
