Jc803

iTrader: (2)

Ok, stock ignition it is.

Its going to be mostly a track car but still "street legal" for cruising around. Sounds like it might be easier to go external route. This would be a good time for -08an feed and -06an return. I'm not too sure about tanks or fuel systems, but why a steel tank? I believe its plastic, whatever stock is. I'm going to have to look up how to sump a pump.

Can anyone confirm that -8cc pistons is what I want?

Might be a dumb question but I'm running a manual throttle cable on the LT1. The dropout motors I'm looking at includes an electronic throttle body and pedals. Is running a manual throttle cable and throttle body fine? Do I need to change anything in the tune for this?

Cam72aro

iTrader: (28)

I had it heat up on me and **** down several times. It was a brand new pump. It didn't like more than about 30 minutes of run time. The combination of that, the noise, and the small nasty tank made me go back to a stocker and do dual walbros. They are quiet, don't shut down, and cheap. I guess its personal preference too. If they work for him then thats good, just weren't for me.

Jc803

iTrader: (2)

Well after searching around, the duel in tank sounds cheaper, and Lonnies performance can make the kit. My questions are, going in tank or external, if you have -10 or -08an feed, and the edelbrock fuel rails are 3/8" threads and 9/16" i.d. fuel passage, isnt that smaller than -10 and maybe -08, so can anyone tell me what the point is? Or if anyone just says go -08an then, that works for me too, no explination needed.

But that brings me to my next question. What is the line size on the sending unit? Is it a least -08an? Because the way I see it if you have double pumps, -08an feed line, but those lines coming from the sending unit are smaller, then seems to be the weak link

Jc803

iTrader: (2)

I guess what the simple question is, if I have dual walbro 255 pumps, stock feed (3/8"), Y block with -06AN feeds to both rails, -06AN lines to FPR, and -06AN line to stock return line (5/16"), then what could be my max hp before the lines are too small?

ren987

iTrader: (4)

I ran #8 to y fitting and did 2 *8's to each rail, but the only reason I did it is so it would be easy to step up to a #10 feed if I ever needed more fuel. And I am using the factory feed line as a return line.

Jc803

iTrader: (2)

Good info. I'm still confused about the hard lines on sending unit. What size are they? Bigger or smaller than -08AN? and how do you attach a AN line to them? Fitting, push lock, I'm confused?

Jc803

iTrader: (2)

Ok scratch all the fuel questions. I'm just going to get a Nasty Performance fuel sump/tank, A1000 pump, -10AN feed to Y block, -08AN from block to rails, -08 from rails to FPR, and -06 return line. Its expensive but I plan on one day making 900rwhp so I'm just going to get it out the way. Going to get a pump speed controller to keep it cool so dont have to worry about that.

When I put the motor in and I'm making the wiring harness and getting all the kinks out, would it be a problem running this much fuel to the reg and will it non turbo and will it handle it?

Also still need to know if getting -8cc pistons is correct.

Sales@Tick

iTrader: (3)

-8cc is fine on the pistons.

Jc803

iTrader: (2)

Thanks Tick. That about all my questions for now. Looking forward to doing business with you as soon as I start wrapping up my deployment

Sales@Tick

iTrader: (3)

Not a problem!

Camaro9969

iTrader: (12)

You really don't need that fuel set up to make 900 you could do the twin 255s yourself for about 300 bucks do 8 feed 6 return or many guys use stock feed as the return. and if you want more power throw another 255 in there

Jc803

iTrader: (2)

Wow, good to know thats awesome. Can you answer this because no one seems to know.

1. How large are the hard lines on the sending unit? I mean if its smaller than the -08AN line then wouldnt that be a weak link?

2. How would you connect the AN lines to the sending unit? Just a clamp, fitting, or what?

Cam72aro

iTrader: (28)

My setup is dual walbros, y into a -10 into an inline filter then -10 all the way up front to the rails, then a 13301 aeromotive on the return side with a -6 going into the stock line as a return. Simple and cheap setup. Combine that with 80lb injectors and it should support 800+.

Jc803

iTrader: (2)

K great. So you're saying you dont use the factory hard lines on the sending unit at all correct? Well, at least for the feed I mean.

ren987

iTrader: (4)

correct, his set up is similar to mine. Only using the factory feed line for the return.

Cam72aro

iTrader: (28)

Yes sir its pretty much the same setup everyone runs. Its the easiest and most cost effective there is. If a pump fails then its $100 to replaced it. They are proven to run a lot of miles as well.

Slow94Formula

iTrader: (18)

There was an LT1 car that made 1000 rwhp on the stock fuel lines. Can't find the thread or the car, but if I remember correctly Speed Inc. had a hand in it. I opted to go ahead and go with -8 AN feed and used a stock LS1 feed line for my return. In the end I wished I had just ran another AN hose instead because it would have ended up costing me just as much. The push lock fittings are a little on the expensive side... lol

Dual pumps on the LT1 sending unit are easy... much easier than I expected. 98 LS1s will have a similar sending unit setup, but a different float I think. You have a steel tank unless it has been replaced at some point. Every car from 93-98 had a steel tank according to what I have found. One plus to it is that it's already kind of sumped from the factory. The worst part was getting both socks through the hole. I think there are a couple pictures of my pump setup in my build thread, and like others mentioned MightyMouse's DIY thread for twin pumps is a good read.

Camaro9969

iTrader: (12)

I agree what he said.....I tried using my stock feed as the return and the little fittings and **** you need almost cost as much as an entire -6 return do it once so you will not have to worry. Yes many get away with it but its only a few bucks more to do

Jc803

iTrader: (2)

Ok I have what I want for the fuel part figured out. Now some MAP and software questions.

What bar MAP do I want, 2, 2.5, or 3. Any part number on what you recommend or links.

And are you guys using Efi Live or Hp Tuners. I've read soooo many threads on both and it seems 50/50 to me with guys saying the same things over and over about both. The only pointers I've taken in is, heard Efi is more technical, and HP Tuners is more user friendly.

I'm leaning to HP Tuners in that case. But also read HP tuners does not have anything for 2.5 bar map sensors. Is that a problem.

club_xcursion

iTrader: (6)

what intake are you going to run? ive been looking at aftermarket FAST ones but some people have had problems with boost leaks or cracking.