Ill be posted pics of my Son's Jr. Dragster fuel cell that I will be building from 6061 2 1/2" aluminum tubing. The original fuel cell was just behind the seat making it hard to fuel the car between rounds, thus the need for the new fuel tank !!
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Ill be posted pics of my Son's Jr. Dragster fuel cell that I will be building from 6061 2 1/2" aluminum tubing. The original fuel cell was just behind the seat making it hard to fuel the car between rounds, thus the need for the new fuel tank !!
:ONeed pics and specs on the draster what class and how fast what age group? Just not fair they should come out with a class a little biggger and alot more power to stuff a fat old broke cripple guy in one .:O:O
No way to run a feeder hose to the old tank like on a car or truck? Or is that a safety thing with those.
Mind you, making a new one sounds like a lot more fun to me.
What type fuel? And of course, how fast is it. Is it 1/8 mile?
Ive got the cell done, Ill have to get the pics up. These little cars are a blast !! My son and I built the engine from scratch using a Briggs and Stratton Blockzilla flat head block based off the 5hp briggs. We are making around 35hp with this motor. We run the car on methanol and have been 8.19 at 78 mph in the 1/8th mile. He wants to drive my car but I think I will let him get alittle older frist :O
Here is a pic of the Jr. Dragster from a car show last year http://desmond.imageshack.us/Himg440...jpg&res=medium
This is my hot rod from 2007 http://desmond.imageshack.us/Himg248...jpg&res=medium
As you can tell I really needed a good tig machine for race car work LOL atleast that's what I told my wife !!
Very cool dragsters, boys and their toys. What kind of turbos are you running and how much boast? What is the best you have run?
WOW. Very impressive. 5 to 35HP.Quote:
Originally Posted by TD2593
I second the what is the turbo size and boost question for the 2007 machine and what you run now.
Far as sons, I have a 16 year old going on 30, could be worse, could have had a 16 year old daughter. :D
The turbos on the car now are on-center 76mm T4 frame. On gasoline we ran 4.10 at 176 to the 1/8th. The car is now on alcohol with two 160lb per hr injectors per cylinder EFI, didnt get to do much with the car this year due to changing over to the alcohol. I did take the car out Nov. 12th for some shakedowns, have alot more power than with the gasoline !!! Had big trouble keeping the car down in the front and hitting the wheelie bar hard enough to unload the chassis resulting in smoking the tires. Put all the weight we had with us in the nose of the car and did make it to the 60ft before it spun, with a .957 60ft time, had to lift at 1.1 seconds into the run. Looking for low 3.90's at 180 plus to the 1/8th next time out. Come on spring time !!! The motor is a true Oldsmobile 397 cubic inches.
Ive got some pics of the completed Jr. Dragster Fuel Cell Turned out really nice. I have started a small fuel cell to hold gasoline to prime my big car from the cock pit with a push of a button no more squirting it in the turbo to start it :)
http://desmond.imageshack.us/Himg820...jpg&res=medium
http://desmond.imageshack.us/Himg20/...jpg&res=medium
Nice car. My son and I are off to watch a co-worker run his Blown Alcohol Hemi powered 1970 Chevelle.
That's a nice looking fuel cell, I thought the jr dragsters were a box-stock type of class? What's the most horse power you can make with those motors?
Quote:
Originally Posted by SeanMurphy265
They group the kids by age groups. starting out at 8 yrs of age with a quickest ET of 12.90 in the 1/8th mile, 10-12 yr top ET of 8.90, and 13-17 with a max ET of 7.90 no faster than 85mph. The cars have to be a flat head design, with the new big block style flat heads they are seeing in excess of 65 HP !!!
Tank looks good.Quote:
Originally Posted by TD2593
Why on earth are you manually priming your car to start it?
What ECM are you using? Does it not have a prime pulse that is adjustable? Even with a mechanical fuel pump you shouldn't have to manually squirt fuel into it to start.
I run a mechanical pump with a FAST SEFI ( 13.4 gal min ) the first time it is fired after sitting for a while it has to have just a little squirt to prime the pump to make enough pressure for the EFI. Once it starts I rarely have to prime it again the entire day. I wouldnt have to prime it, but is sure is hard on the starter spinning it over to get enough rail pressure for the EFI. A buddy of mine lost a Pro Mod race with EFI turbo car because they didnt have a primer bottle handy and couldnt fire. I like the just in case LOL
Ok, I gotcha.
13.4 gal/min...holy @#$%.
Could probably dump my entire fuel load on my bike into it just to get it to fire....