Underboost
Mr. Dull
- Joined
- Oct 4, 2005
I think it was getting hot do to lack of coolant.
I would be interested in seeing whether one of the pumps failed on the double pumper set up?
Something happened to the engine at the Huntington dyno day event. The dyno broke when Ralph's car was doing the first pull and the engine overheated. The tech. was also holding the rpms up for quite a long time before the pull.
Jeff
So, no datalog?
Coolant in the exhaust will poison the wideband 02. This would explain why the injector DC would look normal and the car went lean. If it had been a fuel delivery problem from the tank the injector DC would be maxed out.
Neal
He was still getting feedback from the WB; it was adding 20% fuel (if you do an average for the entire run it was in the range of 13%). BTW Ralph just added a 16 volt battery and alternator and the voltage through the run was 15.9 so the electrical system including the injectors should have been at optimum. The injectors are also new; Precision 83 lb.
Jeff
Coolant in the exhaust will poison the wideband 02. This would explain why the injector DC would look normal and the car went lean. If it had been a fuel delivery problem from the tank the injector DC would be maxed out.
Neal,
I only data logged the first run and the head gasket problem occurred on the third run, so coolant could have affected the WB but I also would not rule out fuel delivery.
Jeff
So if you knew the engine was gonna take a crap why didn't you stop him from running proffesor know it all..
wow,,,, lot's of info thanks guys i am sure learning alot
thanks to the buick community.
can't wait till its back on the road.
PIZZA CRUZZ???
wow,,,, lot's of info thanks guys i am sure learning alot
thanks to the buick community.
can't wait till its back on the road.
PIZZA CRUZZ???
When Ralphy?
I have Kenny lined up to order the pistons and do the machining (block and rods) and he should have the block by the end of next week. It will take 6 weeks to get the pistons from CP. We also have to figure out if the Champion heads are useable. I would bet that Ralph will be in the nines by June if the tranny holds up to 700 rwhp.
Jeff