Need some info on a S366

DetailsUnlimited

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Oct 26, 2009
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I'm getting(in transit) a S366 billet and would like to hear some numbers as in power and track times with stock injectors and fueling. Any of you bracket race with it(and be consistent) and should I be able to run mid 11's with no problem.


I will be getting dual fuelers soon, but just want to hear from the guys running this charger. Thx
 

hondarider552

Getting faster
May 28, 2008
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I made 572rwhp with stock injectors with stock cast wheel on my LBZ, and ran a best of 12.3 @ 109 with that setup. Im sure with some injectors and that billet wheel would net you 11's
 

DetailsUnlimited

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My best run with a lil shot was 12.02. 8th was 7.67. Pat do you have a 1/4 mile time? I'm really not concerned with mid 11's if I can run 11.9X consistently.
 

PAT

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Aug 21, 2011
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I've done a few 1/4's. But the truck falls on it's face right around an 1/8th. My rail psi is wack. I also have 60% injectors though. I have a cp3 on the way. I'll let you know what it does after that's put in.
 

DetailsUnlimited

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I just put a new cp3 with a modded reg. I thought the old one was getting old but it was just the damn race plug leaking. So I'm hoping for good competitive power for super diesel and consistent bracket racing.
 

PAT

EASY DAY
Aug 21, 2011
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Damn!!!! That was an expensive attempt at a fix! At least you get more fuel out of it though. What happened to the race valve?
 

DetailsUnlimited

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I had taken it out before and checked for trash with the same rail drop. So started replacing fuel lines, deleting filter.... Then Dustin and Mark said check the plug again and also read about a bunch of ppl having issues. I cleaned the rail and threads and sofar has worked.
 

MarkBroviak

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May 25, 2008
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Gaylon, best on my my dyno with billet S366 was 850hp 1613ftlbs and same turbo combo did 11.18@12xmph on Mike Moore's LB7 so it has plenty of potential for what you are looking for bud.:thumb:
 

VeeAte

going for 10s
Dec 7, 2010
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I didn't know the race plug could leak...maybe that's why my wicked stage 3 isn't holding rail with 60% overs.

My best time is 12.06@112. Turn the pw up anymore my rail pressure falls off.
 

DetailsUnlimited

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Gaylon, best on my my dyno with billet S366 was 850hp 1613ftlbs and same turbo combo did 11.18@12xmph on Mike Moore's LB7 so it has plenty of potential for what you are looking for bud.:thumb:

Thanks Mark! Been searching for any times or power but haven't seen any yet. I got the S366 with batmo and race cover. Wanting the best spool for towing and power. I will find out soon.
 

VeeAte

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Dec 7, 2010
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So the race plug was leaking and spraying fuel in the engine compartment? I would have thought I'd smell it? I think you'll love the turbo, mine spools fast and pulls hard, should be great for towing.
 

DetailsUnlimited

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So the race plug was leaking and spraying fuel in the engine compartment? I would have thought I'd smell it? I think you'll love the turbo, mine spools fast and pulls hard, should be great for towing.

It was leaking past the plug in the rail and going into the return line. Not leaking out.