Ok, i plan to paint my floor with truck bedliner. I like it. Anyways, what type of bar is required to run an 11.50. If i paint this bedliner down and in the future my car makes an 11.49 pass(shooting for 350whp in the end) will i be able to get it up to weld in a bar? If not which areas should i leave bare?

 

What?

 

lol. Ok, lets make the assumption that my car runs 11.50's. At this E.T. a roll bar is required. My floor is painted with truck bedliner, how do i get it up to weld in my bar, also, what must the specs on my bar be to run friday nights at a nhra rules track. thanks.

 

pm one of the regulars of the Drag forum on roll bar requirements, you could take the bedliner off with a wire wheel whenever you are ready for the cage

 

What brand spray on liner are you using? Some user tougher compounds then others but can still be taken up . Wire wheel will work or even a chisel and hammer .

 

I'm using herculiner.

 

why not just put the cage in before you put in the bedliner?

 

There is no guarantee my car will run an 11.50 and if it doesnt id like to not have an un-needed cage. Also, id like to get the bedliner down so that i can keep the car quiet for the time being.

 

as far as i know...a bar isnt required at 11.50 its required at 11.49, and its only a 6 point i think....then at 9.99 or 135 you need a 10 pt. thats what i remember them telling me when i got kicked off for no cage.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid_Coupe &raquo;</TD></TR><TR><TD CLASS="quote">as far as i know...a bar isnt required at 11.50 its required at 11.49, and its only a 6 point i think....then at 9.99 or 135 you need a 10 pt. thats what i remember them telling me when i got kicked off for no cage. </TD></TR></TABLE>

x2

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid_Coupe &raquo;</TD></TR><TR><TD CLASS="quote">as far as i know...a bar isnt required at 11.50 its required at 11.49, and its only a 6 point i think....then at 9.99 or 135 you need a 10 pt. thats what i remember them telling me when i got kicked off for no cage. </TD></TR></TABLE>

..x3 ...stop trying to over step safety. put the six point in and call it a day. then you don't have to worry about messing up your pretty bed liner tar. my 2cents

 

Basically a cage is un-needed unless you crash...

Phuk that... Get it put in and call it a day. I'd rather have it and not need it then need it and not have it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dragonfly2k3 &raquo;</TD></TR><TR><TD CLASS="quote">lol. Ok, lets make the assumption that my car runs 11.50's. At this E.T. a roll bar is required. My floor is painted with truck bedliner, how do i get it up to weld in my bar, also, what must the specs on my bar be to run friday nights at a nhra rules track. thanks. </TD></TR></TABLE>

you will need a da with aggressive paper, or a 4" grinder.
no i am not kidding. rhino or line-x?

 

can do. I guess maybe i should put it in. What size tubing/wall thickness are you guys using? tig welded? do many of you guys incorporate an X brace and/or rear strut tower brace into your cage?

 

I would be concerned with the weight of the spray in liner. Definitely something to consider.

 

Yes, i know this was considered. The entire gallon weighs about 7lbs it may take one more quart after that. Im not too concerned with the weight as this is not an all-out race car.

 

Be carefull with using a bedliner inside the vehicle. If the car ever has a fire, the bedliner emits toxic fumes as it gets hot... There are some water based coatings that are safer, but I am unsure how well they dampen sound (assuming that's why you want to coat the floor).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AST &raquo;</TD></TR><TR><TD CLASS="quote">Be carefull with using a bedliner inside the vehicle. If the car ever has a fire, the bedliner emits toxic fumes as it gets hot... There are some water based coatings that are safer, but I am unsure how well they dampen sound (assuming that's why you want to coat the floor).</TD></TR></TABLE>

thank you, i was un-aware of that. Yes, this is primarily to dampen sound as well as to add a new type of floor covering. I removed my carpet due to mold and smell saturation. I saw this in one of the 240 build threads in a/c and pretty much loved the idea of bedliner.

 

Put in the bar, but go ahead and get mild steel and mig weld it if cost is a consideration. Read the NHRA rule book for tubing size and specs and do not cheat as they will sonar test your bars.
Always use safety stuff before you need it. Besides, it will make your whole car stiffer and sometimes that will make it more consistant.

Besides all that, I always say...If it ain't got a roll bar, then it ain't a race car.......

 

at my work we spray Ameraguard liner material(similar to Line-X,but we use a high pressure application system).from time to time we have to remove them(wrecked trucks that need a new bedside mostly).a chisel and hammer works best.takes about 3-5 hours for two people to get out an average size bed.wire wheel gets out the remaining chunks.bottom line,if you do you need to get it out later for the cage/bar,it's not a big deal.from my experience,the do it yourself stuff is MUCH easier to remove too.

as mentioned above though,i'd be worried about what would happen in the event of a fire.this stuff puts off some serious toxic fumes when heated or burned.the employees spraying it have to wear full suits with fresh air hoods when spraying it at 100+ degrees.we've sprayed the inside of several roadrace cars,and i never thought it was a good idea.definitely do some research before you buy and try to get something that's better suited to interior use.Dynamat used to make some spray on material that i'd assume it safer,since it's intended to be used inside.
Chris