Vehicle: 2005 / Briggs&Stratton / Modified FSAE Engine
Engine: 590cc, V Twin, not very stock internals, aircooled
Injection: Port, undecided injectors, stock single barrel carb manifold (test setup only)
Description: University of Michigan - Dearborn Formula SAE powertrain
- Main Page http://www.engin.umd.umich.edu/orgs/fsae/
- Briggs & Stratton 21hp V-Twin de-stroked to 590cc using 16hp crank
- Billet aluminum connecting rods
- Forged aluminum pistons
- Titanium valves
- Aluminum roller rockers
- Aluminum push rods
- High duration solid lifter cam
- Hitachi VR sensor triggered by a single crank magnet (for now)
- Innovate LC-1 WBO2 sensor/controller (on the shelf while we get things rough-dialed with a NB)
- Dual exhausts with stock sausage muffler cans (for now)
- Puck style restrictor (for now)
- 50mm Ford throttle body (to be replaced by ~35mm)
- Land & Sea Dynomite snowmobile water brake engine dynomometer LINK
- Electronicly adjustable load valve for constant RPM or defined RPM sweep runs
- Complete integrated DAQ system
- Custom (hackjob) stand
The car dyno'd at 18.75 rwhp at the competition last year. That was with the identical 590cc long block, single barrel (16hp) carb and dual magneto ignition. So we've got LOTS of room for improvement.
Now what project thread would be complete without photos?
Full gallery - http://evilallianceracing.com/ipw-web/g ... ggsNSquirt
After we implement spark control and have the engine running really well in NA form, we'll add this little beasty courtesy of Garrett...
Finally, here are a pair of videos and a picture of the engine running for the first time (11-2-05)...
Here's how the setup looks right now.
Beautiful, I know. Not me in the picture/vid by the way, I'm behind the camera. Its actually in a nasty mess right now, since everything is all pulled apart for troubleshooting.
We're still having some issues, but it started and ran on command 10x in a row, so I'm calling it success at this point. Should be at least slightly downhill from here.
Biggest things to fix:
1) Intake leaks. Engine revvs up to a few thousand rpms at "idle". Not hard to fix, we'll get that easily.
2) V1.01 MS has seen better days. Its been acting up then working ok, then looking like its acting up but starting the engine. It needs a little TLC. But it won't get that until after I build up the brand new V3.0 to use instead. The V1.01 will be relegated to backup duty.
I'll post back to this thread with periodic updates.