NHRA metal line ?

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Kent mosby

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If I am not planning on racing my car for anything other than for "friday night" street racing at the track. https://www.spokanecountyraceway.com/friday-night . Would I need to have the metal line 12 inch limitation. I do not plan to do any other racing. This is in a 73 scamp with a 512 ci BB. I plan to have a tanks inc. tank and pump. What line size for 500+ hp? 600hp with nitrous?
 
Kent mosby said:
If I am not planning on racing my car for anything other than for "friday night" street racing at the track. https://www.spokanecountyraceway.com/friday-night . Would I need to have the metal line 12 inch limitation. I do not plan to do any other racing. This is in a 73 scamp with a 512 ci BB. I plan to have a tanks inc. tank and pump. What line size for 500+ hp? 600hp with nitrous?
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I didn't see a thing in that page about fuel lines.

Get an NHRA rule book and read it over. If you are using the OE metallic lines you should be golden.
 
if you have a 512 motor in a scamp , an go to the track you need all the safety equip that they require, for your safety and the others at the track
 
I agree on safety for professional race cars. I just was not sure about this because I have seen very fast cars there and they were stock configuration. Hellcats, Corvettes etc. Well, I guess those are race cars in street clothes. Metal lines it is.
 
Kent mosby said:
I agree on safety for professional race cars. I just was not sure about this because I have seen very fast cars there and they were stock configuration. Hellcats, Corvettes etc. Well, I guess those are race cars in street clothes. Metal lines it is.
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The rule is no more than 12 in total on the entire car ,that’s front to back ! Also if your using AN fittings they must have the proper fittings no hose clamps,on steel braided lines .the engine builders on this site will better be able to tell you the size of fuel line ,I would use no less than 3/8 possibly 1/2 “.
 
If you are going to run braided line I would spend a few dollars and go with AN #8....might be over kill but do it once and be done and dont ever worry about fuel supply line
 
if you have a 600 horsepower Scamp there's a laundry list of things you're going to have to have ready before they'll let you on the track..
Safety is synonymous with professional race cars...
It's crazy nuts like you and me that come to the track with way too much horsepower than is safe that they should scrutinize the most...
 
I agree with 70aarcuda, AN#8 or 1/2 aluminum or steel line is a one and done deal.
To run at Spokane on Friday night or any street event, basic rules apply, battery hold down, radiator over flow, no visible leaks, seat belt and air in tires.
I don't know if 2 springs are required on the throttle. but you should have 2 anyway.
 
j par said:
if you have a 600 horsepower Scamp there's a laundry list of things you're going to have to have ready before they'll let you on the track..
Safety is synonymous with professional race cars...
It's crazy nuts like you and me that come to the track with way too much horsepower than is safe that they should scrutinize the most...
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if your 600 hp car runs in the 12s...then you dont need much...lol......All the safety requirements are based on the Et and/or mph of the car......
 
Sometimes I forget there's a far cry between what a Dyno number says and what car will do that the track...
 
70aarcuda said:
if your 600 hp car runs in the 12s...then you dont need much...lol......All the safety requirements are based on the Et and/or mph of the car......
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j par said:
Sometimes I forget there's a far cry between what a Dyno number says and what car will do that the track...
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I've been following the OP's build, the 512 will run 12's with just a blip of the throttle when it's all said and done. :thumbsup: :D
 
I'm a big hard line fan. I learned as a kid how to bend, cut and flare it. I can make some darn pretty line, too. Not everybody likes doing that.....it's a sorta dying art form. I can see why. All that AN stuff is easy to work with and pretty inexpensive, too. Nonetheless, I still prefer hard line. I know. I'm sick.
 
fishmens67 said:
I agree with 70aarcuda, AN#8 or 1/2 aluminum or steel line is a one and done deal.
To run at Spokane on Friday night or any street event, basic rules apply, battery hold down, radiator over flow, no visible leaks, seat belt and air in tires.
I don't know if 2 springs are required on the throttle. but you should have 2 anyway.
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I learned the throttle spring first hand. Broke one and the throttle was sticky, went to high idle.

Checked it and had broke a spring.
 
And every TECH inspector is different.Some are tough nuts, some hardly look at anything.
I came back to edit, I truly believe in doing what is right and SAFE for all.Just because a tech guy is lax doesn't mean we should be.
Case in point, I was running in a $25,000 bracket race with a 13 second car. One of the slowest cars in the field. During tech I was asked if I had a helmet. I replied no, don't need one with a 13 second car. The tech guy responded, I would. Remember these guys are chasing you,some running 8.0's over 150 mph.That's like someone behind you shooting bullets and you assume they have good aim...
I use a helmet form that day forward.
 
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First and foremost. By all means - safety first! I have enough stuff in the wife's car that she could make the jump to pro from sportsman and I wouldn't have to add anything. I tell her that it's because I love her so much. Yeah bullshit. I don't want to have to spoon feed her the rest of her life and wipe the drool from her mouth because I was to cheap to put in a driveshaft safety loop keeping her car from pole vaulting when/if the driveshaft breaks and buries itself in the asphalt at 100mph. It's sounds like you should consider some of the well intention-ed rules as they apply to lines, hoses and such.

I will point out that if you are not running at a NHRA sanctioned track/event. The rule might not apply. I know at our friday night stuff. They check for battery tiedown, radiator overflow and general condition of the vehicle. Friday nites are not NHRA sanctioned events even though we are NHRA
 
Thanks for all the wisdom and advice. What is your go to source for lines and connectors. Any pics of the connections from the underside to the carb/EFI. I figure I will run hard lines as much as possible, then convert to flex on or around the firewall.
 
Here is a general tech inspection video i made that you can do at home. If you haven't had your street car to the track, just tell them you don't know what it will run. Your requirements for safety will be off the ET, not a dyno sheet. I wish this video was a sticky, it's the 3rd time I've posted this in 4 days here at FABO, including PM's.
 
318willrun said:
Here is a general tech inspection video i made that you can do at home. If you haven't had your street car to the track, just tell them you don't know what it will run. Your requirements for safety will be off the ET, not a dyno sheet. I wish this video was a sticky, it's the 3rd time I've posted this in 4 days here at FABO, including PM's.
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See if you cant make a "how to" thread in the racers forum, those get stickied dont they?
 
diymirage said:
See if you cant make a "how to" thread in the racers forum, those get stickied dont they?
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It's where I originally posted this video. A lot of folks going for their first time, and most are slower than 11.5's. We have sticky for Caltracs tuning and head flow. Nothing to help newbies get their car prepared for tech. So, I made a video and teched my own car.
 
318willrun said:
Here is a general tech inspection video i made that you can do at home. If you haven't had your street car to the track, just tell them you don't know what it will run. Your requirements for safety will be off the ET, not a dyno sheet. I wish this video was a sticky, it's the 3rd time I've posted this in 4 days here at FABO, including PM's.
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You'll get your sticky one day...
 
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