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Carbs to FI - 9/71


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#1 madkaw

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Posted 3 weeks ago

Thought I would document and take advice on this change over . Just sold off my triples and decided to get going on my MS controlled FI. First step - fuel delivery. My set up might or might not help anyone since I have a unique set up- CJ-5 poly tank .
Going to use a Tank Inc drop in Walbro with sump. Just going to cut another hole in my tank and drop it in. Going to keep my original sender unit in there because it an accurate fuel gauge sender

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Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#2 HuD 91gt

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Posted 3 weeks ago

Interesting little contraption.  I'm too deep into my external surge tank, with an internal Walbro to change directions, but that certainly looks much cleaner and lot less hassle.


1971 240z - Balanced .040 over L28 w/ Ported P90 head - Colt c542.s cam, SU w/SM needles, MSII (ignition)- LS2 Coils Wasted Spark, MSA Premium Exhaust - 6-3-2 Header

 


#3 madkaw

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Posted 3 weeks ago

I didn't want to make room or a place for a surge tank and this is a better deal for my set up for sure. Don't know if this would drop in a stock tank easy or not. This is the easy part - running new fuel lines will be a bitch
Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#4 HuD 91gt

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Posted 3 weeks ago

Yes,  i'm having a B^&%h of a issue trying to keep all my components in the rear (Surge tank, filters, fuel pumps).  It will work, but is not much fun.

Neat contraption.   Your right though, mounting wouldn't be an issue on the stock tank, but having rooms for the lines/fittings above the tank could be troublesome.  With a little bit of welding, i'm sure you could trim the spare tire well to make room while keeping thing tidy.

Good luck.  I'm not too far behind you.

PS:  I'm kind of excited to run new lines. I enjoyed doing the brakes.  Going with 3/8" hard lines myself.  I ended dup with aluminum despite what the internet says.  But i'm in the airline industry.  If it's good enough for a 500 passenger jet, it's good enough for me.


Edited by HuD 91gt, 3 weeks ago.

1971 240z - Balanced .040 over L28 w/ Ported P90 head - Colt c542.s cam, SU w/SM needles, MSII (ignition)- LS2 Coils Wasted Spark, MSA Premium Exhaust - 6-3-2 Header

 


#5 madkaw

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Posted 3 weeks ago

I contemplated the aluminum , but listened to the critics :)
I might regret it after trying to bend the stuff. I am going old school and skipping all the AN fancy fittings though. I'm going to try and install the new lines in the same place , but it will be fun . Just ordered FPR , SS fuel line and a bunch of fittings and still 250$ + . I figured the AN stuff would have been another 200$
Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#6 madkaw

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Posted 3 weeks ago

And as far as all those components , I was going to move my battery in the back and use the battery tray for everything , HP pump, surge tank ...
Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#7 HuD 91gt

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Posted 3 weeks ago

Good for you for not getting sucked into the AN stuff.  I actually prefer the look of the rubber lines.  Your right, even using the off brands (Jegs/Summit) my bill was $390 + fuel pumps/regulator.  The only reason I went that way was the off chance the car may seem some stringent rules for track duty.  I doubt it, but you never know.


1971 240z - Balanced .040 over L28 w/ Ported P90 head - Colt c542.s cam, SU w/SM needles, MSII (ignition)- LS2 Coils Wasted Spark, MSA Premium Exhaust - 6-3-2 Header

 


#8 cockerstar

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Posted 3 weeks ago

I'm happy to be watching you go through this because I'm soon to follow! What made you chose the Tank Inc. setup over some of the other ones out there?

 

I'm currently looking at the VetteWorks adapter to run a 4th gen Camaro (LS1) fuel pump and am researching all of our options out there.

 

VetteWorks adapter:  http://www.vettework...?products_id=89

Installed on a Camaro tank:  http://transamcountr...p?topic=56613.0

 

I think the easiest route overall is going with one of these modern in-tank setups since I need to drop my tank to clean it anyway. Austin Hoke did a nice job with the mounting of an Aeromotive setup.

 

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Edited by cockerstar, 3 weeks ago.

Ryan | '71 240z | L24, flat tops, e31, 4-screw su's, 6-2-1 header, Greddy organic clutch, close ratio 5-speed | r200 CLSD waiting to be installed

Just a tip for serious head, check out Braap, an admin, he won't let you down ;)


In nome de padre, et fili, et sancte spirate

"If you cannot convince them, confuse them." --Harry S Truman

#9 madkaw

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Posted 3 weeks ago

I bought ONE aeromotive product -FPR- .cause I wanted to spend for quality there. The tank inc product was all I really found and it worked for me , so I stopped looking . 225$ for the whole kit with Walbro pump . You can't buy 1/2 of an Aeromotive pump for that. I'm not knocking their products , just don't want to spend 1K to convert to FI.
I'm perfectly happy with rubber lines- HELL- OEM stuff is all rubber.
OEM tank presents clearance issues that I don't have. Cutting and welding on a fuel tank gets into serious fab work. This would be better since it's just cutting a hole and dropping in.
Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#10 cockerstar

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Posted 3 weeks ago

With that Tank Inc unit you'll have to drop down part of the tank too, right? With the outlets on the top you might be able to run a spacer between the top of the tank and the floor and loosen up on the J bolts if you don't. I wouldn't want the outlet of the sump pressed right against the floor though.

The price really isn't bad including the pump though!

Edited by cockerstar, 3 weeks ago.

Ryan | '71 240z | L24, flat tops, e31, 4-screw su's, 6-2-1 header, Greddy organic clutch, close ratio 5-speed | r200 CLSD waiting to be installed

Just a tip for serious head, check out Braap, an admin, he won't let you down ;)


In nome de padre, et fili, et sancte spirate

"If you cannot convince them, confuse them." --Harry S Truman

#11 madkaw

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Posted 3 weeks ago

Not sure what you mean. See the pic above. I know you can't tell but I have room above my tank . My spare wheel tub is gone and the tank is framed in just below the floor. I probably have 1.5" of room or more. I am going to cut a hole in the floor for an access panel . I already have an access panel for the sending unit , and I will just make another for this pump.

Maybe one could do something slick in the spare tub well to make clearance for the pump fittings. 


Steve,
9/71 240z. 2.4 -.40 over, balanced. E-88 Bigger SS valves, stage 2, 6x2 header, true dual exhaust. BW t-5 , STI LSD 3.90- triple Mikunis 40mm

#12 cockerstar

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Posted 3 weeks ago

That makes a lot more sense. I didn't realize you had that clearance there and was thinking of a stock configuration where the tank and floor are only separated by the pads on the tank.
Ryan | '71 240z | L24, flat tops, e31, 4-screw su's, 6-2-1 header, Greddy organic clutch, close ratio 5-speed | r200 CLSD waiting to be installed

Just a tip for serious head, check out Braap, an admin, he won't let you down ;)


In nome de padre, et fili, et sancte spirate

"If you cannot convince them, confuse them." --Harry S Truman




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