Drag Racing Discussions > Front Engine Dragsters
First run...
SaltandPepper:
Roger, you are spot on with what Allied told me when I called them to order the plug. They did not go into as much detail as you but now I understand how the radiator could have air into it. On outboard engines you have to fill the lower gear cases from the bottom up with a pump so as not to get air pockets in the case. I wonder if the same principle could be applied to this system if I slowly filled it threw that plug hole with a hose or gravity fed water tank? Is there a better radiator that I could purchase that would accommodate the needs of this engine better? I purchased this vehicle at a fantastic price knowing that upgrades would probably be needed so if I have to put out a bit of coin to bring it up to speed I am willing to do so.
Dave....YES it does have a crank trigger and I have your number on speed dial, lol. I will give you a call when I get back from the shore. This will give me some time to get my questions in order and again, thank you so much.
This week my wife Sheron put her foot down and said she wanted to go fishing and crabbing so when she says that....I listen. She has been so supportive of all my projects. She and I just finished building a 100x50 mechanics and paint shop (private use only) and when I asked her if I could get money out of the bank and go to Texas to buy this FED, she asked why I was not on the road yet. A better women I could not have. When I crossed that finish line on my first run at 115mph I think she was just as excited as I was. One things is for sure....we liked the feeling, the accomplishment, the challenge. At a 11.9 we figure the only way to go is faster and we are going to stick to the plan.
dusterdave173:
well moving the distributor just screwed up rotor phasing LOL but hey easy to fix eat some crabs and get back on it
421Altered:
I have the exact same radiator on my Enderle hat injected 421 sbc altered. I agree with the other posters, you most likely have air pockets. When I fill my radiator, I actually raise the rear of the car up about a foot to help it purge the air out of the system while I run the electric water pump. Then after a while I let it down and keep running the pump. All told, I usually run the pump about 20-30 minutes to get all the air out. Even then, after the first time at the track after several heat cycles, and after it has cooled completely down overnite, I have to add a small amount so that the water level is about 1-2 inches below the radiator cap. This radiator works well for me in my altered which I bracket race and drive from pits to track and back to pits. Only thing that I don't like about it is I have not figured a way to convert from a rubber radiator hose to braided hose. But hey, rubber hoses work for thousands and thousands of miles in street cars don't they?
Roger:
421's suggestion to raise the back of the car then your idea to fill it from the plug in the front header tank sounds like it will work. It's amazing what you can come up with for ideas when you put a few minds together, that's what is nice about this forum. Just put a shutoff valve on the tank opening and a valve on the filler hose, it will be a little slow in filling but you shouldn't have any air in the system either. Just like your outboard lower gear case filling deal. See if it works for you then maybe decide to do an upgrade if necessary.
Now while I'm here I've got to ask you: does your wife have an unmarried sister by any chance that also approves of spending money out of the bank account on racecars??? If so, please reply by private message. lol
jeff/21:
On sbc intake had a petcock instead of a plug in the rear of the intake to bleed the system. as for the fuel system had the regulator installed in a return line and adjusted to 8 PSI and timing varied between 36* and 40* all in by 3000 rpm on race gas we went as low as 32* depending on what heads we we trying it also had a filled block up to 1/2 way in the water pump ports 8" converter staged at 4000 rpm.
you have to try things to find what works for you. but you only make one change and record it and the results.after a half a dozen runs you will be comfortable then you have to get a routine down, how you do your burn-outs what temp and rpm you stage at. one size does fit all
ENJOY!
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version