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Would even 5# of boost go kaboom?

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Old 10-05-2009, 12:43 PM
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Default Would even 5# of boost go kaboom?

First off I am not real serous about doing this, because I think I know the answer.

Specs and dyno numbers in sig. Forged pistons, rods stock crank with 11.2 CR.

1. Would this blow my motor up?
2. Assuming it would not go kaboom, what power would 5# make?
Old 10-05-2009, 12:46 PM
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about 500+rwhp. idk about the motor blowing i dont think so
Old 10-05-2009, 01:07 PM
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I'm got the same dilemma on my 408. I had it built for NA with nitrous in the future. On 5lbs you should be fine for pump gas, but needs a tune ASAP before even really turning the key on it. You aren't wrong for thinking it fella. Hell I am lol You could always turn the boost up a tad but would definitely require race gas though.
Old 10-05-2009, 01:15 PM
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Or E85.
Old 10-05-2009, 01:23 PM
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Or alc /meth might get a bit higher safely.
Old 10-06-2009, 07:19 PM
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Originally Posted by hellbents10
Or E85.
can e85 be just slaped in the tank or do u have to be tunned for it ?......sorry for the thread jack
Old 10-06-2009, 07:21 PM
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Originally Posted by _916ls1z28_
can e85 be just slaped in the tank or do u have to be tunned for it ?......sorry for the thread jack
You have to be tuned for it. Requires about 30% more fuel.
Old 10-06-2009, 07:37 PM
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so would i have to add a another walbro and bigger injectors
Old 10-06-2009, 07:40 PM
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pretty much lol...whats your setup now?
Old 10-06-2009, 07:40 PM
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The pump would be close but you would need like a 60# inj.
Old 10-06-2009, 07:45 PM
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Originally Posted by blue00ZZleeper
pretty much lol...whats your setup now?
walbro255 and 42#injectors
Old 10-06-2009, 07:47 PM
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id go with dual walbros (pretty cheap and easy to do), and alteast 60lb/hr
Old 10-06-2009, 07:50 PM
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I have seen a single hotwired 255 support 650 rwhp. 500 NA + 150 wetshot off the fuel rail and maintain rock solid 11.8:1 AFR. 500 rwhp e85 should be doable.
Old 10-06-2009, 07:54 PM
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No I deff think it would do it but with the cost of the pumps being a little more then 100$ why not get another one and not tax the system as much?...60lb/hr injectors will work well and are capable of a lot. What about lines though? Isnt E-85 more caustic or such? I think I remember hearing that some compounds arent compatible?
Old 10-06-2009, 08:07 PM
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Originally Posted by wrd1972
First off I am not real serous about doing this, because I think I know the answer.

Specs and dyno numbers in sig. Forged pistons, rods stock crank with 11.2 CR.

1. Would this blow my motor up?
2. Assuming it would not go kaboom, what power would 5# make?
What kind of FI are you going with? 5#'s would be okay with forged internals shoot people run 5#'s on stock internals. But if you are on a budget just get some 317 heads to lower your CR they're cheap and if you have the tools won't take long at all to put them on. But as stated get a tune quick if turbo'd stay outta boost until you do. If SC I don't know what to tell you just don't get on it I guess.
Old 10-06-2009, 09:22 PM
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wouldn't it be kind of hard to put 317 heads on a lt1 lol!
Old 10-06-2009, 09:24 PM
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Get a cam that will bleed out some compression...?
Old 10-06-2009, 09:45 PM
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Originally Posted by kinglt-1
wouldn't it be kind of hard to put 317 heads on a lt1 lol!
Lmfao yes that's true my bad my brother was distractng me with questions bout LS SERIES boost stuff thanks for the correction
Old 10-06-2009, 10:44 PM
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I wouldn't try it just spray the juice!!!!!!!!!!!!!! If youc install the FI system you would be too tempted to turn up the boost and its really not worth the risk...



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