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Need help building a stock cubed LS1 for boost

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Old Jul 11, 2009 | 08:18 PM
  #21  
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same here....MLS all the way...and no, fueling isnt something to play around with....you dont wanna lean it out. I've got another 346 getting ready to go together that I plan on running 16psi through. Bottom end will be much similar to your plan...I want to break 700rwhp with 16-18psi and methanol
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Old Jul 12, 2009 | 08:23 PM
  #22  
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Originally Posted by blue00ZZleeper
same here....MLS all the way...and no, fueling isnt something to play around with....you dont wanna lean it out. I've got another 346 getting ready to go together that I plan on running 16psi through. Bottom end will be much similar to your plan...I want to break 700rwhp with 16-18psi and methanol
346? are you changing the pistons ? if you do change the pistons it will probably be around 347 ci, because you will need a clean up hone to do it properly.
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Old Jul 13, 2009 | 08:31 PM
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I im going to run different pistons. I think with honing only its not worthy of being called a 347,i round down lol. Im going to run the stock crank. The only thing is the rods/pistons I traded a set of ported and polished 241 heads for are questionable. Their CRS-6098 rods and mahle forged pistions. I dont know if I trust the CRS rods on 16 or maybe more psi
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Old Jul 13, 2009 | 08:56 PM
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I would go with the steel main caps, doweled... Yes, it's overkill, but the first time you shoot a few rods out the block, your next engine will be built overkill.

I've done that, and I did the billet main caps on a iron block, because it really wasn't much more $$.. The less flex you have in that block, the better chance you have of that motor lasting. IMO..
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Old Jul 13, 2009 | 09:44 PM
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I'd run 60 lb Motrons.

I ran 10.00@139 on 93 pump no meth in my Formula.
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Old Jul 14, 2009 | 01:11 AM
  #26  
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I run dual walbro 255's, Motron 60's and PP fuel rails....fuel system should be good for mid 600's. I'm still not sure about the rods though lol
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