Rollie completed the pin striping on the tank once again, as I changed the Jimmy 302 over to mechanical fuel injection and a electric in-line water pump..... I had to cut the tank up to switch from the log manifold to injection with a new header design.....
Hopefully Rollie's pin striping will push us closer to the 200 MPH on a 202MPH record.....
Anyone going to Bonneville this August, please stop by for a beverage and shade !
I have also added a picture of our push vehicle coming up from Texas !
-- Edited by Candy-Man on Thursday 25th of July 2013 09:32:07 AM
Longer collectors would have been real nice, however; I am very very limited for room inside of the tank and I did not want to run the exhaust on the outside of the tank. Building a Belly Tank is like building a hot rod, with all the nice to go parts, with a fraction of the room...... You run out of areas to place everything very quick....
Not really, other than I run a solid rear end (no suspension) with 10 degree's of caster in the front axle, 1/8" of toe....... I have increased the front tire pressure (front drag tires) beyond the manufactures recommendation... The rear tires are actual Bonneville M/T speed rated tires, 75 lbs of air pressure, as some guys run around 90 lbs air pressure in the rear.... The speed rating on my rear tires are 400 MPH, which I will NEVER see !
Well we made it to Bonneville for Speed Week 2013. Too make a long story short, we are still having a few issues with keeping the 302 Jimmy head cool. We are now in the prcoess of designing a water manifold to attach to the top of the head for extra cooling. Oh well, next year.... We had a blast !
Our electric in-line water pump moves 250 GPM and the rad was designed by the person who designed most of the "B-Cool" rads....
We made only two runs, as we had to shut down the motor due to over heating issues with the motor.
5 out of the 6 cars running Jimmy's broke this year, it was a tough year.
Water manifold added to the head should take care of the cooling. When we were out on the salt, we added an extra water line from the pressure side of the water pump to the back of the head, however, we already damaged the head gasket (hopefully not a crack in the block or head)...
Oh well, if it was easy, everone would be doing it !
The way I think of it is, only 500 entrants from around the world, it just shows how challanging Bonneville is and problems which exist only on the salt...
-- Edited by Candy-Man on Tuesday 20th of August 2013 09:25:33 AM
Seems the cards were stacked against you this time. The original inline water pumps were huge bigger then an 8 by 10 gal/min with a rad the size of your car shrink all that down with a rad location thats marginal and an ambient temperature thats over a 100 and its not hard to see you struggling to keep it under control.Don't know if you changed it but the flow on a 6 goes from the bottom up so by the time it hits the head its struggling to pick up heat. add the new manual injection to the scenario thats possible not helping the cause, I think you did rather well and had fun to boot. really hard to tune in till you get there with the extremely different conditions.
Hats off to you guys Neil. (not in the sun though) It looks like you've got the speed, and I'm sure you will solve the heating issue. I've got the trip at the top of my bucket list for next year.
__________________
Just because you can doesn't necessarily mean you should!
Sorting out racing engines/chassis can be a long road at times, as it's not like you live next door and can just run over and make a few experimental tests and tunes.
Good for you Neil for having the smarts, the tenacity, and the sense of humour to run at Bonneville! It must be satisfying and disappointing all at the same time, congratulations on making the attempts! I sincerely hope it goes better for you next year.
"Model A Guy", thanks, that means alot !
Bonneville is an amazing place, everything runs perfect until you are on the salt which is 4,500 ft above sea level, 100 degrees F with terrible humidity.... The motor in my Belly Tank, ran in a very similar configuration in a vintage dirt track modified stock car with very few issues, using a terrible rad which was usually plugged full of dirt/clay from the track....
Oh well next year.
BTW, Bonneville ate up 5 of 6 Jimmy 302's this year. I appear to have sustained the least amount of damage....
-- Edited by Candy-Man on Tuesday 20th of August 2013 09:13:28 PM
Good for you Neil for having the smarts, the tenacity, and the sense of humour to run at Bonneville! It must be satisfying and disappointing all at the same time, congratulations on making the attempts! I sincerely hope it goes better for you next year.
I hope there is no major damage to the block and head. Will the extra water manifold on the head add more water volume or distribute the cooling more evenly across the head? Just curious.
__________________
Just because you can doesn't necessarily mean you should!
Sherwood, yourself and everyone else, are welcome at any time ! Just call first to make sure I am in the shop.
Sherwood if you want a small panel louvered, just bring down a small sheet of 18 Ga. and we will make a wall hanger for you. Mark out your X - Y axis on the sheet, for the louvers......
Again, thanks to everyone for their support, interest and encouragement, as I picked a motor which fits into a vintage engine class within the SCTA. A Flat Head or pre-1935 4 banger may have been easier, however; I remember the straight sixes running at the circle tracks when I was a kid, as they had a very distinct sound.
-- Edited by Candy-Man on Wednesday 21st of August 2013 07:31:25 PM
Hey Newb,
you might want to tone it down some before someone cuts you a brand new one! This man builds hot rods for a living and builds really good, fast cars. What have you done lately other than try to get on somebody with a REPUTATION that's at least trying to run a car. Come on show us what you're driving/building right now!!! I don't see an avatar or pics in your profile.
OR maybe you should get off the booze!
To the Drunk, maybe you should take some time to find out who some of these people are, and what they have accomplished before you start questioning their actions! And before you do any more posting, maybe you should learn how to spell. Capital letters and punctuation would be too much too ask, I'm sure!
Why am I bothering with this clown, I guess because I have too much respect for the people he is questioning.
Well, we had a spare head gasket (custom copper head gasket) and we added another cooling line from the head to the rad while we were on the salt in an attempt to cool the motor/head, however; we have to add a water manifold to the head, as we cannot control the temp's now. How many $300 head gaskets do you think we should have destroyed, which was not the root cause of the problems ? Every racers issue, HEAT !
Remember, this is only the second year we have run the car, as we stepped the motor up, turning the motor at a higher RPM than last year, added fuel injection, etc. If you have ever run a car at Bonneville you may understand LSRacers issues. Bonneville is a very difficult place to run a motor, hence if it were easy, everyone would be doing it... Why not fix the 'new' problem and attend next year, if your failed repairs on the salt have not resulted in a positive direction ?
Second, we thought we had the cooling issue's taken care of from last year.
Dubya31 : The water manifold across the head will distribute the cooling more evenly across the head, espically the rear cylinders and increase cooling, ie: water volume of hot fluid out of the head. I am also suffering an air lock in the rear of the head, which only appears at B-Ville, very strange. Last year we believed the stock water pump was not flowing enough, therefore; we added an electric in-line water pump with a flow rate of 250 GPM.
I guess everyone wants to read into our problems, instead of focusing on the situation, however; I have not added all the information relating to our issues.
One of the Jimmy experts at B-Ville, Pat RILEY, ex-treasurer of the SCTA, also blew up his Jimmy this year ! Maybe he didn't bring enough spare parts either, after travelling a million miles ! He He He Ha Ha Ha
Everyone has advise, however; there are only 4 or 5 guys left running Jimmy's at Bonneville who can offer any sound advise, whom I have spoken to at length. 5 of 6 Jimmy's were eaten up by the flats this year !
Water manifold added to the head should take care of the cooling. When we were out on the salt, we added an extra water line from the pressure side of the water pump to the back of the head, however, we already damaged the head gasket
your teling us a blowen head gasket ended things for you last year AND this year?
your teling us you drove half a million miles to bonnevile and didn't bring a spare head gasket after what hapened last year?
mind if i make a suggestion
hey Drunk dude...you seem to drive more miles to the liquor store than to ANY event..... do you know Neil?.....
I hope there is no major damage to the block and head. Will the extra water manifold on the head add more water volume or distribute the cooling more evenly across the head? Just curious.
Thanks for the reply Neil. I admire your talents, knowledge, and patience. Thanks again for the advise with the cooling issue I had with my 409. I'm going to sneak down there and peek at Jeffs project. I'll call first.
__________________
Just because you can doesn't necessarily mean you should!
shrink all that down with a rad location thats marginal and an ambient temperature thats over a 100 and its not hard to see you struggling to keep it under control.Don't know if you changed it but the flow on a 6 goes from the bottom up so by the time it hits the head its struggling to pick up heat. add the new manual injection to the scenario thats possible not helping the cause, I think you did rather well and had fun to boot. really hard to tune in till you get there with the extremely different conditions.
