Hi, I have had my bond roll bars drop tank in my hq for twenty years, I have bought a cheap vt Calais with a ls1 and will be looking at doing a engine swap down the track, my question is when I get the car engineered , would or could the drop tank pass if it is below the line of the back tyres and beaver panel?
Engineer passing a drop tank
Started by
_monman71_
, Jun 04 2014 01:21 PM
22 replies to this topic
#4
_monman71_
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Posted 04 June 2014 - 03:43 PM
Is it because it carries fuel, or could I do a fake tank over the original tank?
#5
BIG KEV
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Posted 04 June 2014 - 06:00 PM
They was a topic on all these a while ago ....it will never pass due to the departure angle
#6
ls2lxhatch
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Posted 04 June 2014 - 08:36 PM
Is it because it carries fuel, or could I do a fake tank over the original tank?
The rule only applies to fuel tanks. The reasoning behind the rule is to reduce the possibility of fuel tank damage due to steep driveways etc.
A fake tank cover over the original tank does not have to comply with the departure angle rule.
Edited by ls2lxhatch, 04 June 2014 - 08:37 PM.
#7
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Posted 09 June 2014 - 03:35 PM
where did it say from the original post that he had a fake tank ?????The rule only applies to fuel tanks. The reasoning behind the rule is to reduce the possibility of fuel tank damage due to steep driveways etc.
A fake tank cover over the original tank does not have to comply with the departure angle rule.
he was asking would a drop tank pass when it came time for engineering .....answer NO
#8
antelopeslr5000
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Posted 09 June 2014 - 05:16 PM
where did it say from the original post that he had a fake tank ?????
he was asking would a drop tank pass when it came time for engineering .....answer NO
Is it because it carries fuel, or could I do a fake tank over the original tank?
#9
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Posted 09 June 2014 - 06:23 PM
ok ....I stand corrected but I don't think a fake cover tank would pass either but I am only guessing
#10
ls2lxhatch
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Posted 09 June 2014 - 07:19 PM
The departure angle rule only applies to fuel tanks.
It does not apply fake tanks, exhaust systems, tow bars, or skirts/spoilers as none of these will leak fuel if damaged.
#12
_NewsuxLX_
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Posted 09 June 2014 - 09:30 PM
The engineer cert should only cover the engine swap. And im not sure if it would even need engineering as your not really changing much at all. The hq came with a 350 and the ls1 is only 348 or 9 ci.you can buy all the parts off the shelf to change engines. Your not realy fabricating anything. Only difference is its injected. You would have to look into it abit more but if the cars registered why bother engineering it? People swap old 5lt for an injected 304 all the time. Talk to a few engineers. Dont just listen to 1. Cheers jake
#13
_Bomber Watson_
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Posted 09 June 2014 - 09:37 PM
In general if your swapping from carb to efi it includes the mod code for "fuel system mods" which would include the tank.
Cheers.
#14
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Posted 10 June 2014 - 07:59 AM
It would be an interesting topic to take to an engineer. Im sort of 50/50 on it. Im no expert but im just wondering if he would get away with it as it was fitted way back when you could fit them. But on the other hand you are modifying the tank so you may have to pull it out. Im not sure. Im just thinking about other mods,like howards lx for example. He has a big block in it, they cant make him take it out but you cant put a bbc in a torana legaly anymore. So im just wondering if he got a lenient engineer there may be enough of an argument to push it over the line? Any thoughts? Cheers jake
#16
_monman71_
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Posted 10 June 2014 - 09:55 AM
Thanks for the replies, I thought a part of the inspection would be an inspection of the modified tank and the installed unleaded filler neck, I don't want to lose the drop tank look so I'll have to maybe ask an engineer before getting to deep into it.
#17
_NewsuxLX_
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Posted 10 June 2014 - 10:34 AM
It was only an example lol but i did not no that
#18
_Bomber Watson_
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Posted 10 June 2014 - 10:58 AM
It was at one stage, never engineered tmk.
#20
_NewsuxLX_
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Posted 10 June 2014 - 01:29 PM
Ok well it might have been a bad example but i would definaty ask the question before you write the idea off
#21
_Baronvonrort_
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Posted 10 June 2014 - 02:53 PM
It would be an interesting topic to take to an engineer. Im sort of 50/50 on it. Im no expert but im just wondering if he would get away with it as it was fitted way back when you could fit them.
I doubt any engineer will pass a drop tank that does not meet departure angles, if the car is involved in an accident there could be legal action against an engineer who passed something that does not comply with the law.
#22
_NewsuxLX_
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Posted 10 June 2014 - 05:58 PM
That may be so but its worth asking. I no an engineer who has passed some things that i never thought would pass but they have and they were done safely. Just pays to ask the question.
#23
_Baronvonrort_
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Posted 11 June 2014 - 10:24 AM
Engineers spend 4 years at University, do you think they will risk getting sued for passing something that does not comply with the law?
Ask an engineer about putting an ATL bladder inside a drop tank you might have a chance with that, the bladder becomes the tank and the drop tank can be reduced to case/bodywork status
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