1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

When going to FI do I need do something with the tank?

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Old Aug 6, 2002 | 10:03 AM
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When going to FI do I need do something with the tank?

Ok I was thinking, do I need to do anything different with/to my gas tank... Like a pick up or something? Basically Im trying to say is there really any difference in the tanks from a 13b to a 12A in 85? And what the hell is all that crap under there... Theres like a valve or something on the frame rail.. Cant I just run a in/out and the vent line and be done with it?
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Old Aug 6, 2002 | 11:02 AM
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Dont see why there would be a difference in the tanks, just in the piping after the pump (high pressure side) all the way to the injectors

peace
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Old Aug 6, 2002 | 11:14 AM
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if there is no evaporative line running to the motor then you will need to cap it off, jb it in, etc. i would leave the rollover valve intact. no reason to take it off really.
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Old Aug 6, 2002 | 11:15 AM
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mike, like i saying last night you either need to do a surge tank setup like me if your going to keep the 12a stuff. not the check valve and crap. or make a better pickup so you dont have sloshing all in the tank. i believe the gsl-se has larger diameter tubes all 5/16th and is setup for a external efi pump but i really dont know if there is any real baffles inside. maybe directfire can help you out since he has a gsl-se
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Old Aug 6, 2002 | 11:31 AM
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mike doesn't worry about sloshing. he only goes straight, lol.
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Old Aug 6, 2002 | 11:42 AM
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Mike you know how these cars are..12a cars, and 13b
cars, if the car had a 13b w/ FI i would think your ok.
if it came with a 12a i would change over to the FI stuff.
It never ends.....lots of people are interested in your
money dump,,,,,I mean project,, steve and you are the heros bud...whats the plan for the rearend ???
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Old Aug 6, 2002 | 12:15 PM
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I'd make a surge tank no matter what. Just to be TOTALLY SURE the EFI pump never sucks air.
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Old Aug 6, 2002 | 01:05 PM
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Originally posted by peejay
I'd make a surge tank no matter what. Just to be TOTALLY SURE the EFI pump never sucks air.
Im having enough problems mounting the stuff I have now, this damn Fram Fuel Filter is bigger than the freaking pump!

@mark Im not a hero, just a dumm slacker that wished this damn thing was done already!
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Old Aug 6, 2002 | 01:20 PM
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what i personally would do if i were starting with a 12A car, is keep the stock pickup and a sufficiently large stock-type fuel pump in the stock position, and use that to feed a surge tank mounted underhood. with the surge tank you can use an "in-tank" style fuel pump so that pump takes up no extra room.

what would be really neat/overkill would be a nice tall thin surge tank, and mount it on a top-swiinging pivot so that the fuel doesn't slosh with G-forces, the whole tank moves around, so the fuel is 100.00000% certain to always cover the pickup for the high pressure fuel pump. But maybe I'm just a bit **** about that Had an EFI car that would cut out if I cornered with less than 1/8 tank. Pretty unsettling to be taking a 25mph-rated corner at 65mph and suddenly you have no power = big time oversteer and no way to correct it except countersteer, hang on, and pray that the engine re-lights soon!
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Old Aug 6, 2002 | 04:00 PM
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Originally posted by peejay
what i personally would do if i were starting with a 12A car, is keep the stock pickup and a sufficiently large stock-type fuel pump in the stock position, and use that to feed a surge tank mounted underhood. with the surge tank you can use an "in-tank" style fuel pump so that pump takes up no extra room.

Sounds cool, but wouldnt it be easier to just keep about 5 gallons in it at all times. LOL How bout I just install everything in the spare tire well? That has cross my mind..
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Old Aug 6, 2002 | 04:45 PM
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You can get surge tanks over here that are designed to mount on the First gen. frame rail. I'd probably mount the EFI pump in the stock location and the lift pump somewhere near the frame rail.
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Old Aug 6, 2002 | 06:01 PM
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hey revhed, which brand are you talking about? i got one from rpm performance and its a monsterous tank and made for a first gen but i dont see where its supposed to fit. i dont really want it in the engine bay either cause its already getting to cluttered
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Old Aug 6, 2002 | 06:11 PM
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Originally posted by REVHED
You can get surge tanks over here that are designed to mount on the First gen. frame rail. I'd probably mount the EFI pump in the stock location and the lift pump somewhere near the frame rail.
Man you get everything "over there". How about "over here". If you can hook us up with some one who is willing to do business with individual in the states let us know!! All of this talk about "over here" is starting to bother me. I wouldn't be supprised if it is starting to bother others on this board as well.

Rev-Hed I am not tring to bash you or the people of Austrailia. But, if you must talk about what you have in OZ please spread the love and let us know of a bussiness that will help out us people stranded in "Rotory haters land". I would appreciate it and I'm sure Mike would also.

I have tried many times to obtain products from Dyson rotory and others with no luck at all. They will tell me "Yea we can do that" then I ask them "how do I pay you" and they dissapear.

Now that I'm done abusing my blow off valve, where can I get one of those surge tanks.

Ryan
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Old Aug 6, 2002 | 11:35 PM
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Originally posted by rx7passion
mike, like i saying last night you either need to do a surge tank setup like me if your going to keep the 12a stuff. not the check valve and crap. or make a better pickup so you dont have sloshing all in the tank. i believe the gsl-se has larger diameter tubes all 5/16th and is setup for a external efi pump but i really dont know if there is any real baffles inside. maybe directfire can help you out since he has a gsl-se
Mike, if it helps (probably not)

My tuner made it quite clear that I did not have to have sump or a surge tank for my setup, specifically because I have a GSL-SE. The SE Tank has large pick-ups and internal baffles.

Peejay - I have been lucky enough to never run out of fuel even with the needle on "E" and hard turns in any of my present or past SE's.
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Old Aug 6, 2002 | 11:53 PM
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Man you get everything "over there". How about "over here". If you can hook us up with some one who is willing to do business with individual in the states let us know!! All of this talk about "over here" is starting to bother me. I wouldn't be supprised if it is starting to bother others on this board as well
Yeah, it honestly does kinda make me upset that "over there" they seem to have everything I want...It doesnt make me mad that people are talking about it, just that when I was wheels, the company I want them from is in Aust, I was this, its there, I was that, its there...Its just kinda upsetting. I need places there, that will sell to me here .

~T.J.
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Old Aug 7, 2002 | 12:46 AM
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Originally posted by moremazda


Man you get everything "over there". How about "over here". If you can hook us up with some one who is willing to do business with individual in the states let us know!! All of this talk about "over here" is starting to bother me. I wouldn't be supprised if it is starting to bother others on this board as well.

Rev-Hed I am not tring to bash you or the people of Austrailia. But, if you must talk about what you have in OZ please spread the love and let us know of a bussiness that will help out us people stranded in "Rotory haters land". I would appreciate it and I'm sure Mike would also.

I have tried many times to obtain products from Dyson rotory and others with no luck at all. They will tell me "Yea we can do that" then I ask them "how do I pay you" and they dissapear.

Now that I'm done abusing my blow off valve, where can I get one of those surge tanks.

Ryan
dont you know ryan to get parts from australia you have to pass as an aussie, get that accent working and instead of saying sunglasses say sunnys use mate alot too .
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Old Aug 7, 2002 | 12:53 AM
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Originally posted by moremazda


Man you get everything "over there". How about "over here". If you can hook us up with some one who is willing to do business with individual in the states let us know!! All of this talk about "over here" is starting to bother me. I wouldn't be supprised if it is starting to bother others on this board as well.

Rev-Hed I am not tring to bash you or the people of Austrailia. But, if you must talk about what you have in OZ please spread the love and let us know of a bussiness that will help out us people stranded in "Rotory haters land". I would appreciate it and I'm sure Mike would also.

I have tried many times to obtain products from Dyson rotory and others with no luck at all. They will tell me "Yea we can do that" then I ask them "how do I pay you" and they dissapear.

Now that I'm done abusing my blow off valve, where can I get one of those surge tanks.

Ryan
Dude, you took what I said totally out of context. I made that comment simply as a suggestion on where to mount the tank... nothing else. I was going to elaborate on the design and how it would be easy to replicate but I was running late for work when I made that post this morning.

As for buying parts from "over here" you could try www.philsrotarys.com.au It's the only place I've dealt with as far as parts go and I'm sure they will help you out if they can.

All of this talk about "over here" is starting to bother me. I wouldn't be supprised if it is starting to bother others on this board as well.
Are refering to me specifically? Please show me one instance where I have done this. Anyway, I'm sure there's many other things I do here that **** people off so I really couldn't give a flying ****.

Have a nice day.
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Old Aug 7, 2002 | 01:47 AM
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i see how you have gathered your name my fine fiesty friend, yah!

the 12a tanks contain the same baffle as the se. the only difference i really saw was that the main and return line were the same size instead of the return being smaller. i'm almost positive that the main lines are the same size also. the tank i looked at rusted as good as my 12a's too, lol.
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Old Aug 7, 2002 | 03:05 AM
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On my TII powered 1st gen I have the GSL-SE fuel pickup in my 12a tank. The GSL-SE pick up is 1/2 inch and the 12a is 5/16. My fuel pump has a 1/2 inch inlet so I used the GSL-SE pickup. I do have a big problem with it running lean on anthing less than 1/4 tank of gas. It will start bucking pretty bad over 4K RPM unless I fill it up. Im thinking of having a surge tank made or having a baffle put around the pickup and installing the pump in the tank. Does anyone have any info on how to build a surge tank, where to install all the fittings and how to plumb one into the system?
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Old Aug 7, 2002 | 12:20 PM
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Ask and ye shall recieve

http://www.geocities.com/geo_42_99/surge/surge.htm this one is from Dave Williams' "Tyrannosaurus RX" - Ford 302 in a '79, working on a Hilborn style fuel injection setup for the little Ford

http://www.sdsefi.com/techsurge.htm A more complete creation from the SDS site.

I know Dave Williams' tank isn't completed, but I include it because I like the de-aerator device detail. It's the little things that separate "it'll work" from "it'll work excellent".
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Old Aug 7, 2002 | 01:17 PM
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ahem....racing cell.........ahem
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Old Aug 7, 2002 | 02:44 PM
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Originally posted by REVHED
Are refering to me specifically? Please show me one instance where I have done this. Anyway, I'm sure there's many other things I do here that **** people off so I really couldn't give a flying ****.

Have a nice day.
Calm down killer. I was just blowing off steam on a subject that causes a lot .........jelousy. With all of the talk that goes on in this forum about the stuff that is availiable in Austrailia, there is no attempt to make this stuff availliable to those who are, effectively deprived of a decent aftermarket.

I was not refering to you RevHed. I was refering to the general talk of the products availible in Austrailia, and lack of effort to sell those products to individuals in need.

Ryan
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Old Aug 7, 2002 | 05:52 PM
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Originally posted by moremazda


Calm down killer. I was just blowing off steam on a subject that causes a lot .........jelousy. With all of the talk that goes on in this forum about the stuff that is availiable in Austrailia, there is no attempt to make this stuff availliable to those who are, effectively deprived of a decent aftermarket.

I was not refering to you RevHed. I was refering to the general talk of the products availible in Austrailia, and lack of effort to sell those products to individuals in need.

Ryan
Guys all you have to do is email just about anyone in Australia and they will send the stuff to you... Just cause they are 8k miles away, dont mean you can order it. BTW: Most everything is cheaper there anyways, and with the exchange rate the way it is its really really nice...
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Old Aug 7, 2002 | 05:56 PM
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Originally posted by RX-7-8593
On my TII powered 1st gen I have the GSL-SE fuel pickup in my 12a tank. The GSL-SE pick up is 1/2 inch and the 12a is 5/16. My fuel pump has a 1/2 inch inlet so I used the GSL-SE pickup. I do have a big problem with it running lean on anthing less than 1/4 tank of gas. It will start bucking pretty bad over 4K RPM unless I fill it up. Im thinking of having a surge tank made or having a baffle put around the pickup and installing the pump in the tank. Does anyone have any info on how to build a surge tank, where to install all the fittings and how to plumb one into the system?
Tim (Rpm centre) said that a surge tank would be about 80-90 $US thats pretty damn cheap if you ask me... He said he would give a diagram on how to put it in. But I dont really wanna buy another fuel pump like a Carter or Holley for this purpose, its just a small tank, why not the stock pump?
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Old Aug 7, 2002 | 06:46 PM
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Thanks for the links peejay that was exactly what I was looking for. I can have a friend of mine make me up one of those no problem.

MIKE-P-28
I was thinking the same thing about using the stock pump but I dont think it would be able to flow enough to keep up with the high pressure pump. If the stock one does not flow enough the FI pump might keep sucking the Surge tank dry causing the same problem. Maby I could use one of those cheap high flow pumps from napa like the ones they use in old carbed motorhomes and big trucks?
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