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Easiest injector upgrade for NA LS1?

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Old 08-03-2014, 12:42 PM
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Default Easiest injector upgrade for NA LS1?

I've done plenty of searching, but I'm still lost on what injectors to get. I'd like to get a solid ~400 hp out of my LS1 with H/C/I, and I figure I should upgrade the injectors now, while I have a tune that works I can mess with. I would like injectors that fit the LS1 rail/harness, have free data somewhere (or come with the correct data), and won't kill idle or emissions. Seems like I need around 35-40 lbs, I don't plan on FI or nitrous.

I think some of the Bosch ones fit, and I have found data for them as well, any more specific recommendations?
Old 08-03-2014, 01:00 PM
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http://fuelinjectorconnection.com/sh...php?groupid=97
i run 36# FIC injectors, no complaints....i think there may be an LS1Tech member discount
Old 08-03-2014, 08:18 PM
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Hmm, interesting. I guess everything but the IFR table just works out, supposedly, with this injector? Sounds nice to me.
Old 08-03-2014, 08:48 PM
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OK, did more searching. I guess these FIC injectors are redrills (say some people on the internet), and they don't necessarily plug and play with just an IFR change. The question is whether the ID injectors work 2.5 times better or not.

My last car had Megasquirt, so I'm pretty familiar with what it's like to have no injector data at all - it always had a little trouble on cold starts, then ran fine under closed loop and at WOT. Still, it would be nice to do things more righter this time around...
Old 08-04-2014, 11:40 AM
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you have to put all the data in. And if you buy "new" injectors, they aren't re-drills. You can't simply JUST put the IFR in with any injector change....I mean you can...but its not right.

They have all the data, call them.
Old 08-05-2014, 07:33 PM
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Thanks guys, seems like with correct data the FIC injectors work fine, agrees Google. This should be an adventure, the amount of controversy surrounding LS injector stuff is crazy.
Old 08-05-2014, 08:52 PM
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Aren't 98 injectors a few lbs bigger than the later cars?
Old 08-05-2014, 10:25 PM
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+1 vote for another FIC 36#ls1 injectors here on a Mild H/C/I
Old 08-09-2014, 09:22 AM
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Buick/ASA injectors are plentiful and cheap. HP repository has an ASA tune for the data
I know first hand it works. These are plug and play.

P\N 0280155811 Alldata lists P\N as 24508208



BONNEVILLE 96-00 Fuel Injector; (6-231, 3.8L), w/supercharger

BONNEVILLE 01-03 Fuel Injector; (3.8L), w/supercharger

EIGHTY EIGHT 96-99 Fuel Injector; (6-231, 3.8L), w/supercharger

GRAND PRIX 97-99 Fuel Injector; 6-231 (3.8L), w/supercharger

GRAND PRIX 00-03 Fuel Injector; 3.8L, w/supercharger

PARK AVENUE 96-03 Fuel Injector; w/supercharger

REGAL 97-03 Fuel Injector; (6-231, 3.8L), w/supercharger

RIVIERA 96-97 Fuel Injector; (6-231, 3.8L), w/supercharger

RIVIERA 98-99 Fuel Injector; (6-231, 3.8L)

Should be the same injector thru '05 for the L67

Greg Bannish has an interesting read on resized injectors see pdf
Attached Files
File Type: pdf
Old 08-18-2014, 07:48 PM
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So l67 3800 stock injectors will work on the ls1s?



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