vht

I was planning on blow thru, I have a 750, and a 830 holley to convert. I hear how injected is so much better, so I thought I'd do a little research. Can anyone recommend where to look, a link or whatever? Also, I know nothing about tuning, that was the big draw back and why I was leaning toward a carb. My 06 6.0 has a truck intake, would need earlier throttle body. Also, at what HP and boost do the 80 dekka inj start falling off? Ebay has rails, I would need a good BR regulator, return style anyway along with the right fuel pumps. I'll have a 400 turbo, so could I get by with the micro squirt? I guess I'd still need the 6010, so is there anything better without breaking the bank? Thanks for any info.

Cyrperformance

iTrader: (1)

The microsquirt is nice, limited but can still pull 800hp out of a motor. If you want more features then go with the Gold Box plug and play setup, super nice and Tunerstudio has the auto tune which does the VE table adjustments for you for the most part. There is a learning curve but it is much smaller than say HP Tuners or EFI Live. 80lb injectors have made 700-800 horsepower at the wheels and might go farther with higher pressure.

Forcefed86

iTrader: (4)

It’s a tossup IMO. If you haven’t built a blow thru carb before it’s not super easy. Tons of trial and error, big learning curve. Likely to pop a few motors in the process IMO. If you buy a new blow thru “ready to go carb” you’re looking at $900+. Plus the intake/MSD 6010. So IMO it’s cheaper to stay with the fuel injection.

What fuel? Turbo specs? Intercooled? There is no set answer to your questions, too many variables. It would be more helpful if you gave us a power goal. Then we could tell you what is needed to make the 80lb injectors hit that goal. Look at the sloppy mechanics wiki page. You don’t really need anything but injectors and a fuel pump(s). You can use the factory rails, regulator, intake, TB, ignition systems etc. The micro will do it all. Don’t need a 6010 and a micro.

How far the injectors go depends on the fuel pump capability and base pressure and boost run. Guys are making 850+ whp on E85 with 80lb injectors. That would easily be 1000+whp on race gas.

Personally I’d PM aknovaman. He can build you a harness and setup any MS system you choose. Great customer support, good guy to work with. I’d go for the MS3 box for $560 from DIY autotune. The micro is about $300 from them.

vht

Thanks. I have a 6.0, 06 with the 24 wheel and rear mount cam sensor. It's got 317's which will be ported mildly, bowls cleaned up. I want to make around 750 at the wheels for now, but may go more later. I want to build the fuel system for more right now, was thinking 5/8's, 10, and a 1/2, 8, as a return. For now probably 2 walbros, I have a 20 gal alum cell. Going to run pump 93, race gas at the track and meth injection. would really like twins, ebay, but if I go single, VS 83/88 or On3 88mm. Cam will be decided later, would like something that'll work with P1218's. This is a budget build, but I want it so I can update later. I know if I want more hp, injectors will have to be changed. I looked at a micro squirt last night that was right at $800, and it was plug and play. I was thinking they were cheaper. That's my problem, I know nothing about them, and when I look at the description, I'm lost on most of it. I know carbs, I don't think I have a problem with blow thru, but I do hate carbs. I ran them along time drag racing, when I bought my first dragster I went to manual injection on alky and never looked at another carb until I bought my chevelle and built my 434. I've been on s Denmah, Matt's site, he's the man when it comes to this stuff.

vht

Also, I'm going to run a IC.

Forcefed86

iTrader: (4)

1 450 walbro is plenty for 750 whp. 80lb injectors will get you there with plenty left over. Add another 450 pump down the road and you can make 1000+whp on 80's. 1/2 inch feed/returns are fine. Factory fuel rail is fine. I like to use a rising rate regulator, but it's not necessary for 750hp.

I'd try the ebay 72/68's. $240 each.
http://www.ebay.com/itm/161771217954?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Like I mentioned, look at diyautotune for your MS stuff. Then contact someone else to build the PNP harness for you (and mod the micro). It's almost always cheaper. My micro setup cost me $550 with a PNP harness.

vht

Thanks Forcefed. We were talking about that turbo on the Bullet. I think it'd make a good twin set up. It's twin scroll, open flange won't affect anything will it?

Forcefed86

iTrader: (4)

Nope.

vht

It might have been on here then. I think it was the thread that the big debate about std and auto trans, mph, and all that. Could be wrong, happens a lot lately. I priced the microsquirt, plug and play, loaded with Denmauh tune, injectors, 80lb, and a 3 bar map, $1100. A little much right now. Is this the $390 one, V3 I think it was? I'll just buy it and work on the other stuff later. Also I have my 06 truck intake. It has all the wiring on it along with the map. Will the inj wiring connectors and map work? I know I got to find a 03 and back throttle body.

dburt86

iTrader: (2)

i think the easiest option would be the efi gold box with harness, and there 3 bar OEm style map sensor. its about 1250$ shipped, but that does it all. Has all the features and control you will ever need.

Adding things like traction control and boost control are cheap add ons (about 50$ each)

Walbro 450, deka 80's and everything else stock will get you there.

Micro squirt will get it done, but its limited

Tunerstudio is awesome. Laid out very intuitively, and the forum support is fantastic.

It maybe a little outside your budget but you only have to buy it once, and its awesome. And it includes a full engine harness, so theres some savings there.

dburt86

iTrader: (2)

FYI- efi source gold box is megasquirt, just from a different company. Its tailored around the LS so it has built in knock control and things

vht

Good to know, thanks.

ddnspider

iTrader: (26)

I was under the impression that stock rails started to cause issues at high hp due to the way the fuel distributes to each cylinder and where the feed line comes into the rail. Have you not seen this?

Forcefed86

iTrader: (4)

Nope. I'm on factory rails making 900+ crank. And I'm running E85 on factory dead head LS1 rails. No issues. Other have made quite a bit more.

ddnspider

iTrader: (26)

That is impressive, I'm surprised you dont see any major variance in what the plugs look like, but I guess if you tune to the hottest plug it wont matter anyways.