Keeping oil pressure on wheelie
06-15-2006, 02:59 AM
#1
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Keeping oil pressure on wheelie Is there any secret to this? I seen some people add an extra quart or two. Do you guys run stock pans or should I buy an aftermarket one? I will be spraying alot out of the hole soon and dont want to buy another shortblock. Any input would be helpful thanks
06-15-2006, 01:13 PM
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so if i did an accusump type thing were would I tie it into the oiling system?
these are the same arent they and they are a sponser
http://store.summitracing.com/egnsea...95&D=%2D115995
these are the same arent they and they are a sponser
http://store.summitracing.com/egnsea...95&D=%2D115995
06-15-2006, 02:17 PM
#7
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Canton offers an lsx based kit and yes they are pretty much the same.
http://www.accusump.com/acc_products/acc_kits.html
http://www.accusump.com/acc_products/acc_kits.html
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06-15-2006, 05:33 PM
#9
I sure hope you guys aren't watching it via the factory gauge.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
06-15-2006, 09:17 PM
#10
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Originally Posted by y2khawk
I sure hope you guys aren't watching it via the factory gauge.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
Now what about if a car has a dry-sump setup? I have been talking to a few builders and they recomend to do some sort of a dry-sump setup. I am been looking into the A.R.E stuff and the Dailey engineering stuff. Expensive, but why try and cut corners on an expensive race motor.
06-15-2006, 09:49 PM
#11
[QUOTE=y2khawk]I sure hope you guys aren't watching it via the factory gauge.QUOTE]
Factory gauge? People still have those in their race cars?
Now if I was putting over 700 HP to the ground I would be using something other than a factory oil pan & oil pick up.
Coach
Factory gauge? People still have those in their race cars?
Now if I was putting over 700 HP to the ground I would be using something other than a factory oil pan & oil pick up.
Coach
06-16-2006, 12:30 AM
#12
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accusump claims it will release 15 to 60 seconds worth of oil pressure reserve. I would think the 3quart one with extra oil in the pan already should be enough for a high 8sec car. I guess I will find out.
06-16-2006, 08:48 AM
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wow, wouldn't of guessed these problems with the stock pan having a trap and somewhat "what appears to be" good designing. Anyone venture to guess what's occuring during launch that causes the drop in pressure (i.e. a detailed response, not just the pick up is being un covered, but how is it being un covered). Maybe there's some simple modifications to the stock pan that can stop this from being an issue.
06-16-2006, 09:38 AM
#15
Dry sump is awesome for maintaining pressure. I actually had to turn back the relief valve on mine, i was pegging the 100 psi gauge from 2k rpm on up 
On a stocker, the oil will basically climb up the back wall of the block and eventually uncover the pickup. or at least reduce the capacity available to the pick.
We were running 8 quarts to maintain pressure with a stock style pump and stock pan.
On a stocker, the oil will basically climb up the back wall of the block and eventually uncover the pickup. or at least reduce the capacity available to the pick.
We were running 8 quarts to maintain pressure with a stock style pump and stock pan.
06-16-2006, 09:41 AM
#16
Originally Posted by y2khawk
I sure hope you guys aren't watching it via the factory gauge.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
I/We were watching oil pressure on the last turbo car very carefully with a dedicated sensor. High volume/pressure melling pump, stock pan...
I could time the runs via the drop in oil pressure off the t-brake. ~80psi on the brake, sharp drop on the launch and it took the full pass to creep back up.
Converting that car to an external wet sump, with baffles and HUGE rear mount pickup.
We had to add 2 quarts just to keep some pressure on the launch.
You need to watch the pressure with something accurate and FAST.
do you attribute this drop you're seeing to picking up air in the pump inlet, or the suction of the pump not able to overcome the "weight" of the oil on launch??
do you still see the drop with a external pressurized oil supply hooked up?
06-16-2006, 11:14 AM
#17
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Early threads about this, tended to discuss moving the oil pickup farther back. HiTech Motorsport in MN might have done a lot of this stuff for S/E guys. They wheelie like crazy but I don't think most of them run dry or wet sumps.
06-16-2006, 11:26 AM
#18
Moroso also has a new pan, pickup and windage tray that moves the pickup to the back of the pan. It also has a baffell in the rear to keep the oil from climbing the rear of the pan. It is a little pricey though in jegs it like $640 The moroso part number is 21150.
