Engine dyno time and motor fails us :/
11-08-2011, 11:38 PM
#1
Engine dyno time and motor fails us :/
welp went to dyno the engine today at the shop, did a long prime on the dry sump pump and ran into issues. The engine held about 10qts while we were running it and that was after we had to add 3 qts after it sucked the tank dry. Well here is the issue the tank only hold 7 qts completely full. You may think well where did the other 3 go? well the cam tunnel is sealed and receives oil through tiny holes on the valley floor and it drains extremely slow (when on the motor is on it needs the cam totally immersed in oil. thus it takes about 2 qts of oil its self after you begin running it. The valve areas also have slow returning oil drains but not as slow. So that is the other quart. Thus when the motor is shut down about 10 minutes later we have 3 qts of oil spilling out of the tank upon start up. NOT GOOD.
So heres what i have to do to remedy the situation I have to call Peterson and get a 6th stage for the dry sump so that we can scavenge the valley area (called ilmor and they said the cam can run almost dry now because I went to a solid roller and not a flat tappet like it was. Along with the stage need a longer rod for the pump and longer bolts no big deal just money.
Second I have to send the top of my tank back to Saldana to have 4-5 inchs added to it so that i can hold the extra 3 qts of oil in the motor after its done running.
any who pretty upset we didnt have it run but glad i found this issue before heading out the track with it
So heres what i have to do to remedy the situation I have to call Peterson and get a 6th stage for the dry sump so that we can scavenge the valley area (called ilmor and they said the cam can run almost dry now because I went to a solid roller and not a flat tappet like it was. Along with the stage need a longer rod for the pump and longer bolts no big deal just money.
Second I have to send the top of my tank back to Saldana to have 4-5 inchs added to it so that i can hold the extra 3 qts of oil in the motor after its done running.
any who pretty upset we didnt have it run but glad i found this issue before heading out the track with it
11-09-2011, 11:46 AM
#2
6th Gear Member
Join Date: Feb 2005
Location: KY
Posts: 13,396
welp went to dyno the engine today at the shop, did a long prime on the dry sump pump and ran into issues. The engine held about 10qts while we were running it and that was after we had to add 3 qts after it sucked the tank dry. Well here is the issue the tank only hold 7 qts completely full. You may think well where did the other 3 go? well the cam tunnel is sealed and receives oil through tiny holes on the valley floor and it drains extremely slow (when on the motor is on it needs the cam totally immersed in oil. thus it takes about 2 qts of oil its self after you begin running it. The valve areas also have slow returning oil drains but not as slow. So that is the other quart. Thus when the motor is shut down about 10 minutes later we have 3 qts of oil spilling out of the tank upon start up. NOT GOOD.
So heres what i have to do to remedy the situation I have to call Peterson and get a 6th stage for the dry sump so that we can scavenge the valley area (called ilmor and they said the cam can run almost dry now because I went to a solid roller and not a flat tappet like it was. Along with the stage need a longer rod for the pump and longer bolts no big deal just money.
Second I have to send the top of my tank back to Saldana to have 4-5 inchs added to it so that i can hold the extra 3 qts of oil in the motor after its done running.
any who pretty upset we didnt have it run but glad i found this issue before heading out the track with it
So heres what i have to do to remedy the situation I have to call Peterson and get a 6th stage for the dry sump so that we can scavenge the valley area (called ilmor and they said the cam can run almost dry now because I went to a solid roller and not a flat tappet like it was. Along with the stage need a longer rod for the pump and longer bolts no big deal just money.
Second I have to send the top of my tank back to Saldana to have 4-5 inchs added to it so that i can hold the extra 3 qts of oil in the motor after its done running.
any who pretty upset we didnt have it run but glad i found this issue before heading out the track with it
11-09-2011, 07:51 PM
#4
11-09-2011, 11:53 PM
#5
5th Gear Member
Join Date: Aug 2004
Location: Arizona
Posts: 4,103
What they told you about the solid roller cam not needing much oil is true but it still needs 'some'.
What I always liked about engine dynos is that any and all problems can be sorted out there and not after the engine is in the car.
That dyno time is expensive but well worth it..........
What I always liked about engine dynos is that any and all problems can be sorted out there and not after the engine is in the car.
That dyno time is expensive but well worth it..........
11-10-2011, 12:42 PM
#6
What they told you about the solid roller cam not needing much oil is true but it still needs 'some'.
What I always liked about engine dynos is that any and all problems can be sorted out there and not after the engine is in the car.
That dyno time is expensive but well worth it..........
What I always liked about engine dynos is that any and all problems can be sorted out there and not after the engine is in the car.
That dyno time is expensive but well worth it..........
Thread
Thread Starter
Forum
Replies
Last Post
Gary Ugarek
Archive - Parts For Sale
1
09-05-2015 09:03 PM
HIS S-197
4.0L V6 Technical Discussions
1
08-10-2015 05:47 PM
