All Blown final... Are you happy now?

Well, There shouldn't be any whining now... 5.30's seems to be the benchmark, Hum weren't we running 5.30's 8 years ago... going backwards to do forwards!

Doug

 

dont worry the a/fuel cars will sneak back up on it!
then when they do (slap) they will get another rule change! i sure wish there was a fix to all this but i dont see how? its like racing donkeys in a horse race it just dont work. i like both types of cars i just hope this stuff dont kill the class!

 

Happy to see that if you come with a blown car or A-fuel deal you have a chnace of setting low et.

Todd

 

There is something going on here that is over my head. Will how do you get 99% of nitro out of a barrel of 98% at temp. of 60 degrees or better.
Unless somebody is buying nitro at a different place than I it is 98% at 60 degrees from VP or anyone else. The only way you get a specefic gravity reading of above 98% is at a colder temp. than 60 degrees. Now lets say it was 65 degrees at Pomona. What do you think the fuel cars were running? I can tell you it was just a tad under 98%. The same as was run last year. Why the performance was down is a mystery to me as fuel cars were running 5.22 there four years ago on the same out of the drum fuel as now. You have no way to factor it for altitude as higher altitude almost always means temps over 60 degrees and you have nothing to add to the fuel if below 98% to bring it up. Now I might have been out to lunch all these years of running nitro but if I am would someone please clear me up on this as I am in dior need of help!!!!!

 

By the way Shelly made two test runs at Houston on Saturday. Best was 5.54 @ 260. The corrected altitude was near sea level and was about 55 degrees.

 

So your telling me that they are running the same % as when they ran 5.22


Lanny

 

I think the differance is that the instruments are calibrated to a "pure" drum of fuel or a known (by the fuel manufacturer) value. That drum is less than 100% nitro as manufactured. So the 98% is relative to the calibration drum or the "pure" value. So in other words the "98%" might only be 96% of 100% pure nitro.

 

Like I said there is something going on here that is over my head. All drums of VP that I have bought in the past were 98% at the 68 degree temp.
On my Enderle Hydrometer it read 98% at this temp.
Anything colder it would go up. Anything hotter it would go down. If you are allowed to run 98% and the temp was greater than 68 degrees there was nothing you could do to get it back to 98% except to chill the fuel like Conway did last year. I understand that there is nothing in the rules that says you can't do that when you get into the summer just can't cool it while in the car. Now I understand that NHRA might be working with a different calibration on their meters than your Enderle hydrometer so it gets more confusing all the time.

 

Don't want to wear my welcome out here but what is NHRA going to do when it is 95 degrees and the nitro in the drum reads 95-96%. They going to tell you that it might not work as well but if it were 68 degrees it would be 98%. The engine tuneup is based on the specefic gravity of the fuel which also represents the percent of oxygen contained in a gallon. 95 will not perform as good as 98 at any temp. Now if VP would sell you 100% pure nitro at 68 degrees you could keep the nitro percentage the same under varing temp. conditions. There would still be a performance disavantage because of the increased altitude at higher temps.

 

Will,

We all are going to have a problem... We tested 97.8% before the run in the lanes on Collin's hydro, and at the other end in fuel check it was 98%. This is going to be a big problem, because:

1. temp changes

2. hydro differances

3. the guy reading it.

My sugestion is to measure it in the lanes and put a seal on the tank. This will also speed up the turn arround time.

I hope this gets straighten out before someone gets DQed.

Doug

 

If anyone can figure out 98%, it's Jerry Darien. I wouldn't be suprised if Ashley is in the 20's by Houston.

 

Looks like A. Gallant has it figured out 5.28 @ 265.

 

the 98 % didnt do much hurt the best a/f et at winter nat 04 .36 .37 05 nats best a/f et gainesville 04 .34 05 .28 did gallant or reichert test already on 98%

 

No.

 

>the 98 % didnt do much hurt the best a/f et at winter nat 04 .36 .37 05 nats best a/f et gainesville 04 .34 05 .28<


Does anyone know how good the air is?

 

For the first session (Gallant sat out the second session) the conditions were
3:29 p.m. Weather conditions: air temperature 62 degrees, relative humidity 80 percent, barometer 29.91 inches, adjusted altitude 415 feet, track temperature 77 degrees.

 

adjusted altitude 415 feet<

It won't get any better than that... Just wait when the dog days of summer come arround... there won't be any 20's than.