ET difference w/ less oil
 

I was curious what type of ET gains can be seen from running with 3 quarts of oil vs 5....Anyone willing to share any gains?

Re: ET difference w/ less oil
 

You'll go real fast just before you blow it up! I had what I thought was a "minor" oil consumption problem in my AMX Stocker. The engine was sealed so no dip-stick. And I was lazy. I ran 3 10.500's in a row in D/S weight while local bracket racing. Then I put a rod through the pan. No oil on the track. I took it home, drained the oil. The filter had it's oil and there was about a 3/4 of a quart in the pan.
Normally under great conditions and 5 qts of oil in the pan it would go 10.55 to 10.60. So call it .08 for danger zone oil levels. After that I placed a 1" sight glass in the pan.

Re: ET difference w/ less oil
 

I hear of people doing that. I'm not that brave.

Re: ET difference w/ less oil
 

now that an accusump is legal,wouldn't that take care of the issue?

Re: ET difference w/ less oil
 

the accusump is there for protection against oil not being at the pick up tube for insurance only ,,i wouldnt make a habit running low oil to gain a few hundreth's or tenth,,engines a way to expensive to be blowing up ,,,,i would run a light oil and keep the engine cool before the pass (less than a hunderd degrees)

gmonde

Re: ET difference w/ less oil
 

You run a run with less then 100 water temp?

Re: ET difference w/ less oil
 

Man! I can't even get to the burnout box under 140 degrees! lol This car doesn't mind the temp, though, particularly with the M1 manifold.

I run CAM2 Blue Blood Racing Oil, 0w30, full-time, even bracket racing, double-entered, hot-lap, you name it. Won 3 out of 4 days at the Div. 2 Bracket Finals this weekend. I find the thinner oil to be more consistent over the course of the day. You can get it right off their website if you're interested.

While I've never run one near as low as Jeff, I know what he's talking about. There's a few hundredths to be gained, but in emergencies only. I run typically run 6qt, but the current setup uses oil. I change it a lot more frequently than my bracket car just because it doesn't have a dipstick.

Re: ET difference w/ less oil
 

once the engine is warmed up in the beginning of the day i cool it till the needle sits on the peg,,,start it and coast it up to the staging lanes,,,try to stage at the coolest temp (140 is the normal temp as the tree drops) 160 at the end 1320,,,,,the cooler the better gmonde

Re: ET difference w/ less oil
 

i'd say ice and less oil is worth probably .15-.20 for us on a hot day not so much in this cold weather. ie 50-60 degrees. maybe a tenth at best. I guess it all matters on how much oil you run on the regular, lol.

Re: ET difference w/ less oil
 

Unless you're running a stock type oil pan I see no reason to believe there would be an E.T. gain by draining oil from the engine.Basically the only thing you're doing is reducing windage in the crankcase. With a properly designed pan, scraper and if possible windage tray draining oil is only going to hasten the death of your engine. I would opt for some of the ultra low viscosity oils instead, at least you would have a steady supply of lube to the bearings, although it does have the consistency of water, some lube is better than no lube. As far as running the engine "cold" I do that. After fully warming the engine I leave the water pump and fan on till the water temp is ambient, seems to be a little faster, of course you need a pretty effecient cooling system to accomplish this in later rounds. Joe

Re: ET difference w/ less oil
 

I do, once the oil is warm. Zero weight oil and coolant down to 70 degrees (digital gauge) or so is what mine likes. I fill the filter and put four qts in the pan. Never had the nerve to run it lower than that. Ends up about 100 to 110 at the starting line. 112 to 115 or so at the finish line. Been running the same bearings for two years now.

Re: ET difference w/ less oil
 

Way too hot!

Re: ET difference w/ less oil
 

Dusty: .15-.20??? Really??? With how much less oil??? This thread scares the crap out of me!

Re: ET difference w/ less oil
 

Carefull Dusty...

Re: ET difference w/ less oil
 

yea i know,, i am working on cooling performance over the winter,,,,,its tough when you are pitted on the return road at atco and have to drive the road coarse to get to the staging lanes and hope they are moving slow ,,,,,i guess i will have to show up on monday before the race to get a good spot gmonde

Re: ET difference w/ less oil
 

Youngblood makes a cooling device that will cool the car down to 50 degrees in the staging lanes with no spillage. It is called the cool one. It is great for quick cooldowns in the late rounds or cooling in the staginging lanes before a heads up or record run. Ck it out on his website Advancedclutches.com or call him 208-880-6214

Re: ET difference w/ less oil
 

Allan Patterson is going to be selling a slick unit in time for Christmas. Check his website. I saw one at Memphis. Pretty slick.

Re: ET difference w/ less oil
 

Rob will have his cooling unit at Vegas. Look him up in the pits. Less expensive and excellent quality like all his products.

Re: ET difference w/ less oil
 

Two Comments. If you use an Accusump it is a resevoir for an extra oil supply so when you make the run IF pan volume doesnt cover the pickup the accusump begins to support the pressure in the system to what ever you set the pressure. It is good for slowing down also as it supplies while the oil is draining back.
I noticed .05 or more when Accusump open with regular oil. Thin oil extra et.gains.
If you have an electric fan and water pump take an extra battery with a wiring harness to the lanes. Hook it into the circuit while you are waiting to run and it will cool the water while you wait. This is especially good if you wet the radiator like the "old days"

Re: ET difference w/ less oil
 

Send me a box and pay for shipping and you can have my old AMX 2-core radiator. It's been coated to expel heat. I think you can see it in the picture section of this forum. It was never a problem to use nothing but the fan & water pump in Arizona to get below 80 degrees; at least on cooler days. I always cycle the water pump then fan until cool, uses less amps and cools faster that way. I like to see no more than 100 as I pull up to the water box. If it shows 120 on the gauge, I'm not happy. I've gone to aluminum as allowed in SS class.

Do check out the "Cool One" as noted by Rod Green. Hurry as pricing is going up $100 soon. If you want one, let me know and I'll try my best to make sure the price is locked at the current price.
Jeff

Re: ET difference w/ less oil
 

I thought Grumpy Jenkins always said a hot engine builds more HP?

Re: ET difference w/ less oil
 

In an "ideal" situation you would want the shortblock and the combustion chambers hot and icicles hanging on the intake!

Re: ET difference w/ less oil
 

I think when Grumpy was quoted oil was typically on the 20-50w range for race engines.
Now 0w is not uncommon.

Re: ET difference w/ less oil
 

They were cooling his Pro Stock stuff down a couple of years ago just like everybody else. When that book came out everybody I know that tried it slowed down. He said he had a switch on his shifter that turned the water pump on in 2nd gear. We all went back to cooling them down. The all aluminium engines don't seem to care, and many actually like to run above 180 F. The LS1 is a great bracket engine because it makes the same power between 180 and about 210. I cool mine with a seperate battery to run the water pump and fans. Like Jeff mentioned, we often take it to the staging lanes to cool down for heads-up races.

Re: ET difference w/ less oil
 

How many of you guys have drained the water in the pits between rounds and added COOL fresh water to cool the engine better

On all of our stuff filled with Hardblok the water cools down alot quicker. The oil temp will run a little hotter but we have no problems from Hardblok

Re: ET difference w/ less oil
 

I can tell you first hand that 10 qts over 5 will slow you down 3 tenths and almost 4 mph, Did it ,by accident, @ Indy a couple years back.

Re: ET difference w/ less oil
 

Kidz...............

Re: ET difference w/ less oil
 

KIDZ, what do they know anyway!!! Still WET 6qts, back down da timing, and turn up da HEAT, works for me!!!