Engine diapers

[DEANs427]

Participated in my first event where engine diaper was required, i have no oil cooler but do have 7 qt. pan, I expected some operating temp effects but was a little surprised at the effect. The biggest difference I noted was the cool down time after the pass was much longer, I was lucky in that i was running in 1/8 mile and did not have to get in a 'round robin' situation or I would have been in big trouble. If the meltdown event goes to mandatory diapers (there has been talk about it) I am going to need an oil cooler! any recommendations appreciated....

[57 lima bean]

Don't think an oil cooler will be of any help.Have you thought of a carpet fan?Yes you would need a generator.These work well for cool down.Kevin..(TDC) has used one for years to cool his transmission .... kept his car consistent.Remember the Melt Downs aren't a real race.

[BattlestarGalactic]

There was a fellow at the Ford race at Norwalk last summer that had electric leaf blowers set under his car in the pits to cool his transmission.   Kinda obnoxious after a while listening to those things whining away for an hour for a 12 second car  .  Get yourself a gas powered one and you won't need electricity.

[57 lima bean]

Not as bad as pitting next to a snowmobile or a JR dragster.. Jerry Christenson those things are loud.Don't tell'm I used his name in vain.

[Falcon67]

I haven't put a diaper on mine (dragster), yet, but I plan to.  What I do after a pass is run the wp and fan to bring it down to 150F, then put the battery on 10A charge for 15 minutes.  If I roll out of the lanes at 150, I'll be back in the pit at 180~190.  If I put a diaper on it, I don't see that getting much harder to do.  At worst I'll put the charger on it at 40A while the fan and pump run.  I have an alternator, small one, and with the big 280 GPH pump the battery needs to be no less than 12.5V to have the bitty alternator keep up well enough to avoid fuel pressure problems.  Note - all that charging may kill this starting AGM and if it does under warranty I'll exchange it for a dual mode marine.  I think the ride is beating it up anyway LOL - hardtails are tough on parts.  The wife's door car has to run fan+pump to cool between rounds but it has a big 100A alternator on it, so no battery issues. 

Note that it was mid 90s last race and track temp was in the 135F+.  This coming weekend, air temps are predicted to reach 105F.  Starting line temps should be well over 140, maybe 150.  Cool downs will be "interesting".  Both for the car, and driver.  We run 1/8 mile and I only run in NoE/footbrake.  I do need to get the car to where I might can run both Super Pro and NoE.  And the trailer has AC thank goodness.  Also, I get to wear 3.2A-5 as a reward for going fast.  That's two layers of heavy jacket, pants, gloves, etc.

My issue is the trans - the cooler is mounted on the side of the rear chassis with no fan and it's 180+ after a pass.  I use a blower with an outlet on the bottom that I prop up behind the rear end to blow on the trans case and pan.  This last weekend, it took maybe 30 minutes to get it down close to 150 and going into 5th round I had maybe 15 minutes so went up there at 170.  I plan to re-mount the cooler so I can add a fan to it.  Cooler is in the area between the right header and the back tire on the side facing you

[Falcon67]

There was a fellow at the Ford race at Norwalk last summer that had electric leaf blowers set under his car in the pits to cool his transmission.   Kinda obnoxious after a while listening to those things whining away for an hour for a 12 second car  .  Get yourself a gas powered one and you won't need electricity.

He needs to visit with the guy that beat me 4th round on Saturday.  His Camaro dials low 6s as I recall - had to wait maybe 3/4 second on him leaving.  Anyway, he round robin'd in both Super Pro and NoE.  I didn't get a chance to talk to him much about his setup but his wife said he's got all kinds of fans and such on the car.  He made it to the final in NoE Saturday, never late for a round call out.

My blower is electric, can't even hear it running. 

His ain't no "12 second car"