Chevelle LS conversion fuel system question

[Spiffav8]

VaporWorxs. It's that simple.

Here...I'll make it easy for you:
http://www.vaporworx.com/
http:http://www.rickstanks.com///

[chris_65]

Originally Posted by jwcarguy

X2

It comes down to budget and intended use

If considering a Tanks Inc unit, give Matt or Kim a call at Matts Classic Bowties, I inquired about the Tanks, and they started to carry it, to offer another option to people building cars

you can always upgrade to the larger Walbro 400 pump too when ordering the kit (compared to the 255 pump, approx $60 difference)

Jeff

Jeff,
I contacted Kim @ MCB and for some reason, she said that none of the tanks they get from Tanks Inc. are baffled and that she recommended running the 255 pump (handles up to 600hp).

[jwcarguy]

Originally Posted by chris_65

Jeff,
I contacted Kim @ MCB and for some reason, she said that none of the tanks they get from Tanks Inc. are baffled and that she recommended running the 255 pump (handles up to 600hp).

Maybe Kim, misunderstood the question?
I have one and it is baffled (maybe, not as compared to a Vaporworks, but??)
Clearly states on the Tanks Inc page:
EFI style internal baffling. Extra Large 4.3 liter internal fuel tray to prevent fuel pump starvation.
http://www.tanksinc.com/index.cfm/pa...rod/prd347.htm

Kim and Matt are great to deal with!

[chris_65]

There's been a lot of suggestions for my fuel system question. I appreciate it and I'm still trying to figure out what I'm going to do about a tank...

#1 Buy a stock tank, get a adapter ring from VetteWorks and use a 99'-02' pump and a Corvette regulator. (They claim that the 4th gen F-body will fit depth wise, but I've seen other builds claiming that they had to build up a 1" flange for the pump to fit or cut down the basket).

#2 Buy a stock tank, get a adapter ring from VetteWorks and use a 5th gen F-body pump. (I guess with the pump having only one line coming out the top, that I wouldn't have to run a Vette regulator and I was curious what the tube at the bottom of the basket is for).

Question... If I go with either of the OEM pumps w/ baskets, down the road can I upgrade just the pump and still use the same basket?

#3 Buy a tanks Inc baffled tank w/pump and sender (I've heard that the pumps aren't the best and noisy).

#4 My only other option is to buy a stock tank and get a install a Phantom pump w/ a Vette regulator.

What to do??? I'm leaning towards #1,2 or 4. I'd like to commit to something and start getting the parts ordered and on the way...

[reedld]

Originally Posted by chris_65

There's been a lot of suggestions for my fuel system question. I appreciate it and I'm still trying to figure out what I'm going to do about a tank...

#1 Buy a stock tank, get a adapter ring from VetteWorks and use a 99'-02' pump and a Corvette regulator. (They claim that the 4th gen F-body will fit depth wise, but I've seen other builds claiming that they had to build up a 1" flange for the pump to fit or cut down the basket).

#2 Buy a stock tank, get a adapter ring from VetteWorks and use a 5th gen F-body pump. (I guess with the pump having only one line coming out the top, that I wouldn't have to run a Vette regulator and I was curious what the tube at the bottom of the basket is for).

Question... If I go with either of the OEM pumps w/ baskets, down the road can I upgrade just the pump and still use the same basket?.

I'm using option 1. My 4th gen fuel bucket was recessed so I didn't have to notch my trunk. When using this system, you do not need the additional vette regulator...the 4th gen LS1 FBody has it built in. Run the lines just like you see on the vetteworks site (or my build thread).

After I bought the used fuel bucket, I looked around and found a new GM fuel pump. I was worried that I did not know how many miles were on it...so I swapped it for piece of mind. If I didn't already have the 0-90ohm fuel guage..I would have used the fuel float that comes with the 4th gen bucket. When I changed the pump, I shortened some of the lines so they would not kink and it allowed me to compress the bucket ~inch more. Look around on eBay, these pumps can be had for~$40. I bought mine from a LS dismantler in Philly area (eBay user FParts). These buckets work great (so much quieter than my old external pump!). No need for baffling. The bucket stays full of fuel all the time...pump instantaneously starts pulling fuel from bucket if it senses the pickup is sucking air. Like I said earlier...I've run it down to 1/8 tank...no stumbling..stalling...hestiation whatsoever. The only drawback is HP. If you are going real wild...get a better system (maybe the 5th gen).

As far as it not fitting...I don't have a lot of advice. A guy on nastyz28.com did a LT swap on a 78 camaro...he used longer straps and shimmed the tank a little so it did not hit the trunk. Another guy I know put a small hole/door in his trunk. I thought about shortening my bucket but it looked like quite a job. I'd like to see a write up on it!

Anyway...good luck, you have a lot to think about.

Leon


Here is a link explaining how the bucket works..

http://www.nastyz28.com/forum/showth...02#post2311802

[chris_65]

Originally Posted by jwcarguy

Maybe Kim, misunderstood the question?
I have one and it is baffled (maybe, not as compared to a Vaporworks, but??)
Clearly states on the Tanks Inc page:
EFI style internal baffling. Extra Large 4.3 liter internal fuel tray to prevent fuel pump starvation.
http://www.tanksinc.com/index.cfm/pa...rod/prd347.htm

Kim and Matt are great to deal with!

Jeff,
What pump are you running in you Tanks Inc. tank? Are you having any problems (starvation or noise)?

[jwcarguy]

Originally Posted by chris_65

Jeff,
What pump are you running in you Tanks Inc. tank? Are you having any problems (starvation or noise)?

I am running the 255 right now ( engine is only at approx 550- 570hp @ crank now)

No noises or issues of starvation

Thanks Jeff

[chris_65]

Originally Posted by reedld

I'm using option 1. My 4th gen fuel bucket was recessed so I didn't have to notch my trunk. When using this system, you do not need the additional vette regulator...the 4th gen LS1 FBody has it built in. Run the lines just like you see on the vetteworks site (or my build thread).

After I bought the used fuel bucket, I looked around and found a new GM fuel pump. I was worried that I did not know how many miles were on it...so I swapped it for piece of mind. If I didn't already have the 0-90ohm fuel guage..I would have used the fuel float that comes with the 4th gen bucket. When I changed the pump, I shortened some of the lines so they would not kink and it allowed me to compress the bucket ~inch more. Look around on eBay, these pumps can be had for~$40. I bought mine from a LS dismantler in Philly area (eBay user FParts). These buckets work great (so much quieter than my old external pump!). No need for baffling. The bucket stays full of fuel all the time...pump instantaneously starts pulling fuel from bucket if it senses the pickup is sucking air. Like I said earlier...I've run it down to 1/8 tank...no stumbling..stalling...hestiation whatsoever. The only drawback is HP. If you are going real wild...get a better system (maybe the 5th gen).

As far as it not fitting...I don't have a lot of advice. A guy on nastyz28.com did a LT swap on a 78 camaro...he used longer straps and shimmed the tank a little so it did not hit the trunk. Another guy I know put a small hole/door in his trunk. I thought about shortening my bucket but it looked like quite a job. I'd like to see a write up on it!

Anyway...good luck, you have a lot to think about.

Leon


Here is a link explaining how the bucket works..

http://www.nastyz28.com/forum/showth...02#post2311802

Leon,
So if I get a stock tank, will the gen 4 F-body pump fit in the tank height wise, w/o raising the mounting area of the pump into the tank? I seen that Vetteworks had a recessed panel to be used with a gen 5 pump, but didn't see one for a gen 4. They have the ring, but didn't see a recessed panel. The gen 4 has three lines on top of the pump, one line goes to filter and then to engine, one's a vent the other is a return, if I don't run a vette reg, what do I do with the return? and the gen 5 has 1 line going to the filter then engine, how do I vent this pump? So your saying the neither pump requires a vette regulator, just a filter?

Thanks again Leon!

[reedld]

Originally Posted by chris_65

Leon,
So if I get a stock tank, will the gen 4 F-body pump fit in the tank height wise, w/o raising the mounting area of the pump into the tank? I seen that Vetteworks had a recessed panel to be used with a gen 5 pump, but didn't see one for a gen 4. They have the ring, but didn't see a recessed panel. The gen 4 has three lines on top of the pump, one line goes to filter and then to engine, one's a vent the other is a return, if I don't run a vette reg, what do I do with the return? and the gen 5 has 1 line going to the filter then engine, how do I vent this pump? So your saying the neither pump requires a vette regulator, just a filter?

Thanks again Leon!

I'm not sure what height bucket would work in a chevelle. As far as the recess, since I can't weld, I paid a guy to make my recess in my tank ($50). Do you have access to an old tank? If so, I'd measure and think out it would go in. Are you totally against making a hole in your trunk?

The three Fbody lines on the bucket- large diameter one draws fuel up from pump, out of bucket and the line T's with the smaller opposite line. This smaller line, which has a T on the line, is the return and has the fuel pressure regulator line. The pump delivers greater than 58psi....the fuel pressure regulator "adjusts fuel pressure", sends proper fuel to engine and what ever is left over gets returned to the fuel bucket. This cycle continues minute after minute as the pump runs. Bucket has fuel in it always. This keeps the pump quiet, cool, and a source of fuel as the tank gets low...and you turn corners and it cannot pickup fuel from the stock pickup. The middle line is the fuel vent. Connect this to a charcoal filter or run to fuel rail if you are keeping the smog stuff. I'm running my lines just like the the picture shows, no additional FPR.



The main pickup of the bucket has fuel sock..used for filtering. I run an inline filter just as the fuel heads up to the front of the car.

This diagram shows you the parts of the fuel bucket. Item 9 is the FPR.

[kainedogg]

I plan to go with Tanks Inc's newer baffled design with twin pumps in my '72 Chevelle. Heard nothing but good things about it and it seems reasonable.