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Old 10-12-2016, 12:10 PM
x98boardwell's Avatar
x98boardwell x98boardwell is offline
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What fuel tank to use for LS swap.?

I have removed my old tank. Would like to have dual exhaust when done so removing the oem tank helped with room but unsure what I will use.

I need a baffled tank along with a lot higher pressure than before with the LS motor being fuel injected.

I've done some searching and it seems all the tanks are being installed in the back where the spare tire would be. Is this the only option or is there another solution similar to how the original tank was mounted but baffled and internal fuel pump..?

Any help or guidance is appreciated.

Thanks!!
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  #2  
Old 10-12-2016, 12:16 PM
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x98boardwell x98boardwell is offline
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this is a possibility also..

Maybe just do this..

Tank
http://www.jegs.com/i/RCI/821/2172A/10002/-1

Strap Kit
http://www.jegs.com/i/RCI/821/7515A/10002/-1

Would like to try and avoid eliminating the spare tire space.. don't really want it inside the rear of the vehicle.
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  #3  
Old 10-13-2016, 07:26 AM
chrism chrism is offline
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90's 2 Door S10 blazer fits nice between the frame rails where the spare tire used to go.
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  #4  
Old 10-13-2016, 08:40 AM
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8man 8man is offline
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I'm using the stock tank with a cross over for the exhaust.

The stock tank doesn't have baffles, so I'm going with an electric pump that fills a quart size fuel filter, and I'm using the high pressure pump from that sump to the engine. I learned about it on the Early Bronco site. This is the site, http://www.bcbroncos.com/fuelcarb.html

In all fairness, I have not completed the build to give an accurate account of how it works, but the Bronco guys swear by this system.
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  #5  
Old 10-13-2016, 12:02 PM
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Woodchomper Woodchomper is offline
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I used an aerotank in mine: http://www.aerotanks.com/vehicles/jeep.html
The tank is baffled and you can use any submersible fuel pump that will fit. If memory serves me correctly, I paid a little extra to have double layer of metal on the bottom. I can't say I was overly impressed with the craftsmanship of the tank but it works. I wound up cutting off the front mounting bracket, moving it up towards the top of the tank and re-welding it back on. Whatever tank you get remember the sending unit has to work with your dash so you will need to order the proper resistance sending unit.
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  #6  
Old 10-13-2016, 12:27 PM
joe joe is offline
 
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Why not just use the stock tank? 20 gal is 20 gal. You do not need an 'in-tank' fuel pump. That concept was just an assembly line time(money) saving manufacturing thing. Not better just cheaper. Run your stock tank and run an external elec pump that meets your needs.
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Old 10-15-2016, 07:27 AM
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itselliot itselliot is offline
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FuelTank

Not wanting to hijack your thread,.....
I am also looking into fueltanks with the same questions.....
More fuel capacity and spare tire location...but in a J20 Pickup

I have "heard" that a full size Bronco tank would fit in place of the spare tire location....( I Know, what to do with the tire)?
I do not know if a true dual exhaust system would fit alongside that , guessing it wont tho.
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  #8  
Old 10-16-2016, 12:38 AM
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x98boardwell x98boardwell is offline
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Thanks!

I like the idea of using stock tank with outside fuel pump. Probably should work fine with LS motor. That way will be a lot easier to set up. I can still do dual exhaust but would need to run down passenger side then over to drivers side for that pipe.

Regarding exhaust anyone have some experience or history with this task and best way to route..?


Thanks!
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  #9  
Old 10-16-2016, 11:11 AM
joe joe is offline
 
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Haven't had the need to do it but if I were I'd run both pipes down the pass side and just exit them side by side behind the wheel. Guess you could run a cross-over in the rear, but why?
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Old 10-16-2016, 12:20 PM
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babywag babywag is offline
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Are you planning on making this smog legal?

If so, I don't believe true dual exhaust will pass if you're using a truck engine.
Already going to be tight with the required dual converters up front etc.
Single 3" would be much easier from y-pipe to tailpipe. It'll sound just as good.

Definitely don't shell out $, or start building your exhaust until you know what the referee is expecting to see.

If not needed to be legal, I'd still just go with single.
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  #11  
Old 10-16-2016, 01:39 PM
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x98boardwell x98boardwell is offline
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Thanks

Babywag,

Thank you. I am using a Corvette LS1 motor from 2000. Unsure what the difference is but I'm guessing you're referring to whether or not the original vehicle had it or not.

Thank you for chiming in and I will check before i build.
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  #12  
Old 10-16-2016, 02:00 PM
joe joe is offline
 
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If you're swapping a 2000 motor into a 199x or earlier car you will now have to meet 2000 smog specs, so do your homework "first".
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Old 10-16-2016, 03:00 PM
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babywag babywag is offline
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Quote:
Originally Posted by x98boardwell
Babywag,

Thank you. I am using a Corvette LS1 motor from 2000. Unsure what the difference is but I'm guessing you're referring to whether or not the original vehicle had it or not.

Thank you for chiming in and I will check before i build.

I'd call your referee for that area before you swap it in.
Some are not keen on a car engine in a truck.
He will tell you exactly if you can use/what will be needed to allow & pass it.
You may have to schedule an appt. and discuss in person.
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  #14  
Old 10-16-2016, 10:40 PM
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x98boardwell x98boardwell is offline
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Yup

I will check with them. Never heard of a car motor in an SUV being an issue. I've been told if its a newer motor then I will have to pass emissions for that year/motor which in this case is simple.

I will double check to be sure and I appreciate the input.
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  #15  
Old 10-17-2016, 08:15 AM
chrism chrism is offline
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Run your pump in the tank unless you enjoy sitting on the side of the road. On average my inline pumps last 1.5 years. I carry a spare in the waggy now. You can also make them last a little longer if you keep the tank 1/2 full all the time. This is from experience. I can change out the pump in less than 10 minutes since I added quick disconnects.

My CJ which has an in tank pump has been rocking the same (cheap airtex) pump for 10 years straight.

Its possible to put a pump in the stock tank but the S10 tank fits very nicely between the frame rails in the rear and frees up a ton of space under the truck.
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  #16  
Old 10-17-2016, 09:51 AM
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ClovisMan ClovisMan is offline
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Yeah man, run the s10 blazer tank with in-tank pump. Tried and true. No need to reinvent the wheel. You will need to change out all your fuel lines to EFI compatible. The Corvette Filter/regulator combo will connect your lines to the fuel rails on the LS engine.
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  #17  
Old 10-18-2016, 09:40 AM
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x98boardwell x98boardwell is offline
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Thanks!!

Thanks guys for all the help! Motor is on it's way to me with pedal assembly and harness.
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