Drag Racing Discussions > Front Engine Dragsters

Engine oil recycle / Tire recommedation

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Sidewinder:
Hello Guys:)
Just wander if you guys recycle Your engine oil from Your dragster? So far I change oil after 2-3 rounds, Depends on how much start-up's we do.
After a race I heat the oil to about 190-220 degrees, for about 15 min. Then all the water and Alky should evaporate. I run the warm Oils through a oilfilter, then add a couple of New quarts to about 6 quarts of recycled oil. Anybody els here do something like this?

Also, my current frontrunners are 2.75x19" Avon speedmasters. Look like Avon only has 3.00x19 now, but I really would like somthing skinny on my Borrani Wheels. Is there a good looking 2.75x19 out there?

/K

GlennLever:
I use new oil when I change my oil

Van:
I always reuse my oil, but a little different. I run alky & nitro, I take my drain oil and pour it into a 55 gal drum & let it get near 3/4 full. I have a drain on the bottom & after 4 months, I drain out the nitro & alky. I set my pump about 4" from the bottom & pump out the oil & run it through a simple paint strainer & reuse it. I never reuse oil if the filter has metal in it. I think that if reusing oil after less that 5 min. run time is bad, I shouldn't have put it in the motor to begin with.

dreracecar:
Use Brad Penn oil
 Will not emulsify with the alcohol and any floating on top will steam off warming it up. pull it out after 15 passes and still looks new

JrFuel Hayden:
Sidewinder, Here is my 2 cents on oil, and front tires ;
1'st of all I run my oil for the entire event, change it when we get home. We raced our JrFuel last week end in B/ND racing Comp at the  Div 7 race in Sonoma Calif. We ran it 6 runs, 4 qualifying, and 2 elims. I guess I could re-used it but I've been dragracing dragsters since 1962, and have never re-used the oil. I don't know what kind and weight oil you use, but we use Motul 6100 10w-40, it's a synthetic blend. I have been told you don't want to run a full synthetic oil in an alky burning race engine, because synthetic oil and alky fuel are ester based products, so you will get too much dilution. The Motul has extra additives so unless I'm way rich, we don;t see any alky in the oil, [no baby puke]. Another team I help, drains their oil after each event also, and run the drain oil in their truck.
I know of a TAFC that uses a converter [ no clutch] and in order to get the idle low enough they run it very rich, they have to do that because the throttle plates can get stuck when adjusted that closed. So they cook their oil after every run to cook off the alky.
If you are running 50-60w oil you may want to set your clearances tighter and start using 10-40 oil. It takes power to push that heavy oil thru your motor. I only advise 50w oil if you are running nitro, mostly because you run larger quanity of fuel.
BTW, we have won 3 NHRA JrFuel Heritage Championships with my 10,000 SBC, and only broke one motor because of a bad trans, when the motor went to 11,500 rpm.

OK, now about skinny front tires, as far as I know Avon, or anyone else no longer makes a 2.75 or 3.00x19 rib tire. You no doubt want to replace your Avon's because they are cracking from age, and they might have stopped making that tire over 10 years ago. What I would recommend is sending me your 19" wheels and I can change them to 18" rims, then you could use new 2.50x18 rib tires. Ya I know the 18" will be a little shorter at 23" to 23.5" but you will be able to replace those tires. Plus it looks like, looking at your picture you can lower your front end and not have any clearance issues.

Feel free to call me with any questions, 800-624-3803, Hayden wheels,
Jon Hansen     

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