I have a Allstar blanket on my Challenger with a 10 quart flat bottom top fuel type oil pan and an Accusump. With the tubular K Frame. It takes no longer then changing the oil to remove for driving on the street

If you run the NHRA Summit Et series and want to go to the ET Finals, a diaper is required if you run faster than 10.0

I have used DRE for three different cars and our dragster. Dennis is a great guy and the stuff fits and works, as we have unfortunately field tested them

Thank you Al, I've been fighting the blanket I have for three days now. The cuss words I have in reserve have surfaced. So I probably will be calling SRE I guess this money pit is still not full.

Pittsburgh Racer, John, you and I have had this discussion many times.

Try putting one on a Hemi B body......ain't no way. What gets me is that everyone makes a big deal out of this, then we all watched on TV the Hemi Shootout and watched Bucky Hess spin around in his own oil and hit the wall.....with an 8.30 second AH Cuda.....and, no diaper. And they spin those to over 10K. The average bracket guy is being busted for this, then we find the big money hitters don't have to have one. Why?

But, the biggest I wonder is this......what about the new cars? There are new Hellcats, and others that run 10.90s, easy. We've all seen the new Hemi Challengers and others do that at your local strip. Tell the guy he has to stick a diaper on his brand new car and see if he comes back. I'd bet he doesn't.

Although I don't have anything against them, at all, if one wants by all means use them.....but, I do think it's a money grab. One of the reasons I've kept my car at C/NSS at 11 flat index is to avoid the hassle.

I am really glad to get out of that dumpster fire that is the NHRA. I got so tired of being hosed every time I turned around. It's not like it isn't already a huge amount of time and money to field a weekly bracket car but then having to adhere to every stupid little rule and change at the whim of the NHRA is just too much. I totally get some of the rules but seriously, my aluminum trans shield didn't go bad in 5 years or did my window net. It just got stupid ridiculous.

I know a lot of cars that run 14.0 that are held together with duct tape and a prayer that I'm more worried about than most 10.90 cars.

New Challengers have belly pans. It would be nothing to copy one in metal form and line it with pig mat for oil retention.

Keeping oil off the track is far from “stupid” GJ...

Maybe for a serious racer.....but tell the average guy who likes to go to the track and run his new car once in a while, that he has to put on an oil retention device on his brand new car and he won't be back.

Most of the oildowns I've seen in my fifty years of racing don't come from broken rods, etc.....they come from an oil line, a trans line, or something like that coming loose, or a leak. A Diaper won't help those anyway. A 6000 rpm bracket motor does not oil the track all that often.

Maybe those 9500 rpm small blocks do it, but not too many big block anything oil the track.

Just the fact that they are beating on the rank and file bracket guys to let one, but don't make the class racers put one on really makes me suspect of the reasoning behind it.

Serious racers or not, until you have wrecked a perfectly nice 70 Challenger RT or any other collectable mopar you would understand how important oil containment really is.
Id bet Buckey Hess has one on now, how did he pass tech without one? anything can happen and will happen when your on the track beating the snot out of your hotrod!
yes us serious racers have enough downtime at the track let alone having a oil down to boot, not to mention personal safety as well.
I agree SFI requirements are a money maker for suppliers and should be only required for professional classes/ high HP classes.
How much is your car worth to you? mine priceless!!

I haven't the skill to do it, but I've seen some super ingenious dzuz in aluminum catch pans made for street cars, that basically hold the diaper like a glove to the motor. One i saw the guy had siliconed the diaper to the sections. Just kinda unfolded like body armor, tucked up, and slid into place for his street car. 2 wide straps, one in front, and one in back for strength, but dzuz held it off everything.

Hess does not have one now. None of them do. They are not required in NHRA class racing, so it is not a tech item.

Bucky Hess did not have one because Stock and Super Stock are not REQUIRED to have one. Loophole in the rules that gets many S/ST racers upset as its a requirement for them and many of the have stock front end cars. Its part of the enhanced NHRA experience. BTW the oil down policy is in place for EVERYONE that runs National events no matter who they are, hows that for enhanced experience. I diaper CAN be made to fit ANY combo. A belly pan can also be made to work if one really cares about keeping oil off the track. One last tidbit we have had two BB Mopars come apart that WOULD have oiled the track if not for the diapers, and one that in spite of having a diaper oiled the track anyway. All Bracket motors, one Hemi and two wedges. One of the wedges came in a car we purchased and 11 laps later hurt the block bad enough to get water on the track and pieces went THROUGH the diaper, and body panel.

I don't want one, but I will look seriously into getting one. The engine isn't back in the car, yet, so it'll never be easier to do.

There's a reason why NHRA does not mandate diapers for SS and stockers. I've been through this many times with my car over the years. Its just not feasible for certain cars. It goes back to the early 2000's when Holten was building motors on the west coast. NHRA was going to mandate diapers for SS and stock. I don't know if it was him or Mazzolini petitioned the NHRA to let them put a rack on the car because of the drag link going through the middle of the oil pan. Then the guys with the 66 and 67 Chevy II's complained because the drag link on those cars is right on the oil pan also. Within weeks they dropped the mandate because its just not feasible for all cars. When all this was happening I had to get a chassis cert done. I asked the Div 3 tech to look under the car and asked what he thought about a diaper. He came out from under there shaking his head "There's no frikken way". Hemi in an A-body, big tube headers that just about touch the side of the block. Good luck. Its a great idea,just not practical for all cars.

I h ave a b body and a diaper would be difficult With the link through the pan.I'm thinking more and more about a large belly pan back to the trans pan.I wonder if there could be an aero advantage for the brick?
I blew a freeze plug and tagged the wall back in '13.What a SLIDE!!!

I am NOT a competitor,just a sreet car that morphed into what it is,,,,whetever that may be,,,,,,,,,

If you've ever put the header, steering, torsion bar, starter, oil pan puzzle together under a legal Hemi Super Stock car, talking about adding a diaper to the mix would not be a welcome conversation.

Diaper on mine. Though it's a wedge, not a Hemi.
Doug

Not an A-body either