Getting ready for Bonneville(rebuild)

[jl222]

Just a note about the time that John and Troy are at WOT. At the speeds they are running I doubt that they are at WOT much longer than 60 seconds, even to the 5 mile.

John, what does your data logger tell you?

Rex

  I wish we could run full throttle all the time [working on it]
 
 On our 294 mph run 1st gear 6100 rpm 10 sec max throttle 30% ....2nd 7450 rpm whoops 13 sec max tps 44%
 3rd  7100 rpm 12.3 sec max tps 50%... 4th gear 7000 rpm 17 sec tps 100%   Total time on gas 52.3 sec for 3 miles
except for short push off. Top speed 318 mph figuring 1 inch tire growth with no further increase in speed thats 11.32 sec
per mile or 22.64 sec + 52.3= 75 sec for the full 5 miles. full throttle on that run to end would have been about 40sec.

                      JL222


 

 

[bobqzzi]

I got a reply from Mike Laws

Bob:

Yes we are still selling piston oilers. I am out of the office all week, but please call 1-800-624-1358 and ask for Joe or Mark.

Thanks.
Mike

[jl222]

Just a note about the time that John and Troy are at WOT. At the speeds they are running I doubt that they are at WOT much longer than 60 seconds, even to the 5 mile.

John, what does your data logger tell you?

Rex

  I wish we could run full throttle all the time [working on it]
 
 On our 294 mph run 1st gear 6100 rpm 10 sec max throttle 30% ....2nd 7450 rpm whoops 13 sec max tps 44%
 3rd  7100 rpm 12.3 sec max tps 50%... 4th gear 7000 rpm 17 sec tps 100%   Total time on gas 52.3 sec for 3 miles
except for short push off. Top speed 318 mph figuring 1 inch tire growth with no further increase in speed thats 11.32 sec
per mile or 22.64 sec + 52.3= 75 sec for the full 5 miles. full throttle on that run to end would have been about 40sec.

                      JL222


 

 

    1st -6100 --108 mph--10 sec max tps 30%    seconds are time in each gear
    2nd-7450--  200         13 sec       tps 44%
    3rd- 7100---256         12.3 sec     tps 50%  tried full throttle at first of 3rd but got loose [ backed off quick]
    4th- 7000-- 318          17 sec       tps ioo%  280 21/4 time  294 3rd mile average time  [between 2nd and 3rd mile]


                     JL222

[jl222]

  In the above post it should read between the end of 2nd mile traveled and start of 4th mile.
  BNI started timeing in the 2nd mile traveled on the long course traveled this year, so its confusing now to refer
to the 1st mile-2nd mile-or 3rd mile as there is 4 timed miles.
  But I like having that new time


                  JL222

[jl222]

 After checking the throttle positions and rpms and seconds in gear it only takes 4.2 sec from 6500 rpm [294 mph]
to 7000 rpm [318 mph] on our FAST data logger on our 294 timed run. I have the Bonneville Pro computer program which I input all the data such as hp cd weight gearing ect. which predicts performance with 2400 hp and 341mph and taking 8 sec to go from 6500 to 7000 rpm.
 Next year will see heavier top fuel type pistons new rods and added downforce with a Gurney type flap extending
to max distance of rules with undetermined height for now. This added downforce should allow more throttle in
lower gears.
  On our first run [a tune up run] I shut off at the start of the 3rd mile and had a 271.818 21/4 speed and a
246.68 mph   2 mile speed [ this is the new long course time before the 3 -4 and 5 miles]
 This time is 9.08 mph faster than our 280.513 21/4 and 294 3rd mile run which was [237.60 mph]

        JL222 and a happy new year.
 

[jl222]

  Decided on Bill Miller Engineering top fuel rods as they have a stronger aluminum metal developed for aero industry
and forged out of billet plate instead of just machined from plate. Sent 1 of our Brooks [out of business] rods to him
as he thought he might be able to machine some weight out of his top fuel rods.
 Also sent a piston to look at problem and see what he recommends. But we want 81/2 compression, annodized like his top fuel pistons and dykes ring.

                  JL222

[Freud]

JL222..........

Nice to see u back.

FREUD

[Avanti Kid]

Sounds like your making great engine changes to survive that WOT stage at 300+ mph, I can't wait to see your car on the salt again, take care, Dave 

[bvillercr]

Some parts are in!!

The BME rods is on the right, thicker in some places but hard to see.



Anodized BME piston



You can see the difference in thickness on the bottom oil ring.



On this photo you can see that the BME piston is much thicker at the skirt, and the skirt is a little bit longer.



We will be putting one piston in to check to make sure it doesn't hit the head, then take the rest of the engine apart.  Today is a new beginning.

[maguromic]

Those are some nice parts!  Tony

[Captthundarr]

Now thats a slug to plug a cyl. with.

[manta22]

I'm sure BME are quality rods but I wonder why you chose aluminum rods? Top Fuel places huge stresses on the rods but only for a VERY short time. Aluminum has a far shorter fatigue life than steel rods. Top Fuel guys throw the aluminum rods away after a few runs.

REgards, Neil   Tucson, AZ

[bvillercr]

Niel, the main reason is that there is less shock.  Secondly they weight less and cost less.  Top fuelers have 8k plus HP and big bucks to throw them away after 8 runs.   The billet aluminum rods that we have been using were never the problem, but when we lost a piston it torched the rod.  Now Brooks rods is out of business, so now we went with BME.

[manta22]

Thanks for the explanation. I'd Zyglo them for cracks every once in a while, though.

Regards, Neil   Tucson, AZ

[bvillercr]

The slug made an appearance in the block to check clearances.



Now we just need to pull all of the sleeves and get new ones.  Anyone know of a good sleeve puller?



Here is picture of our controversial tire sizes.  Front runners compaired to our wide rear.