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full engine build vs power adders

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Old May 13, 2011 | 04:01 PM
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Question full engine build vs power adders

Hey guys ive been reading alot on power adders and fully forged stroker engines and such. i used to run a street sleeper nitous car for a few years so im not new to spray but i was wondering something.Im going back over seas again and if/when i make it back i should have around 10k - 15k to drop into my car. now the big question is should i go with fully forged balanced and blueprinted rotating assembly ( crank, rods, pistons) with a set of matching heads, cam, 90mm intake & throttlebody.....or should i just put a set of forged pistons and a power adder ( nitrous or boost) and call it a day?

i have the 02 camaro with full bolt ons, RST twin disk clutch, sphoon heavy duty driveshaft, moser 9in rear with 35 spline axels, detroit locker with a 3.89 gear ratio, SFC's, UMI torque arm, driveshaft loop, suspensions mods left and right. the only supporting mods i dont have which i AM getting soon is upgrading the fuel system to a high output system and upgrading the oil delivery system. as far as i know ( of course im NO professional) i have all the supporting mods i need besides the upgraded fuel and oil system. so which would be the best HP output bang for my buck route to take? any opinions are welcome!
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Old May 13, 2011 | 04:47 PM
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That's a hard decision lol, I'd personally go for n/a just because you "complete" the motor more. Take in mind if you're gonna go boost you would ideally want everything else on the engine to match well with it like your heads and everything. I'd rather have a built n/a than a half-assed (well that's kind of an heavy description for it I guess lol) turbo car. If you're trying to save money though I think the boost route would be cheaper.
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Old May 13, 2011 | 05:09 PM
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If your no mechanic & can afford the price DO your research 100 times with local friends LS1 experts & a lot of search button ^^ in this forum ... The Dynamometer forum on the home page will help you identfy earlier & current setups & achievements do the homework & do it your way not the trolls who try to convince you otherwise .... NOS
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Old May 13, 2011 | 05:22 PM
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[QUOTE do it your way not the trolls who try to convince you otherwise .... NOS [/QUOTE]

yea +1 to that. i am trying to original with my car so. well its about 5k more on the build but you guys think it would be worth the time and money to go all forged?
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Old May 13, 2011 | 05:42 PM
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oh and by the way im looking to reach some where around the 650-700hp mark. i should be able to get close to that n/a with a good H/C setup i hope anyways
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Old May 13, 2011 | 07:19 PM
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do you want 500rwhp and 10mpg or 650rwhp and 15mpg

are you willing to put down an extra 5g's for option 2?
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Old May 14, 2011 | 11:27 PM
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Originally Posted by Project_Reaper
oh and by the way im looking to reach some where around the 650-700hp mark. i should be able to get close to that n/a with a good H/C setup i hope anyways
To make 650-700 hp you are going to need a lot more cubic inches if you stay NA. Consider getting your block sleeved to 4.125, forged rotating assembly and ported LS7 style heads (think MAST). This would not be a cheap build but would make good power and be up for a shot of nitrous in the future if you got bored.
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Old May 15, 2011 | 08:04 PM
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Well in that case ill build it for a 200 wet shot then since i know spray better than boost. Oh does anyone know what the safe shift point would be with the fully balanced and forged internals? 7k maybe?
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Old May 15, 2011 | 08:05 PM
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Originally Posted by MIGHTYMOUSE
do you want 500rwhp and 10mpg or 650rwhp and 15mpg

are you willing to put down an extra 5g's for option 2?

im guessing your talking n/a (option 1) and supercharger ( option 2) ?
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Old May 15, 2011 | 08:34 PM
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I like n/a setups for the simplicity and reliability especially in a street/strip car. Not saying you can't build an engine with a power adder that is reliable it just takes more money.
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Old May 16, 2011 | 09:49 AM
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Save it! Trust me, I've been there and done that and my biggest regret is not investing the $20k I had in my bank account when I got home.
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Old May 16, 2011 | 11:07 AM
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Originally Posted by KCS
Save it! Trust me, I've been there and done that and my biggest regret is not investing the $20k I had in my bank account when I got home.
Best post on this forum. Let your money work for you and use some of the profits to fund you hobby.
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Old May 18, 2011 | 07:19 AM
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Well with my rank i should bring home around 30k since last time i brought 23k home, so setting aside 10-15k for the car and the other 15k in the bank account shouldnt be a problem. But i think ive decided on the full forged rotating assembly, H/C, intake w/ throttlebody and then ill wait a little while down the road for the Boost. thanks for all the great input guys if you have any more opinions please feel free to post more!
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Old May 18, 2011 | 07:22 AM
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You are in ky... I would be getting josh to give me a kit able to produce 750rwhp and keep my ac.
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Old May 18, 2011 | 12:53 PM
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Originally Posted by Reaperchild
If your no mechanic & can afford the price DO your research 100 times with local friends LS1 experts & a lot of search button ^^ in this forum ... The Dynamometer forum on the home page will help you identfy earlier & current setups & achievements do the homework & do it your way not the trolls who try to convince you otherwise .... NOS
He hit the nail on the head. I wish i had done the same when i first started getting into the LS world about 4 years ago. I got sick of paying people to do something i could learn to do my self. There will be a lot of little set backs but no one is going to spend the time on it that you are willing to. On top of that it saves loads of cash to spend on more go fast stuff .

Now if it was me going for a fun street car i would build one mean motor and then add some spray for the track and love it. With all the stuff out for the LS motors you can have a very friendly 11 second daily driver on motor then take the same car to the track turn on the bottle and run 10s with the right set up.
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Old May 18, 2011 | 04:21 PM
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yeah thats true, since i already have all the supporting mods i need im going to do just that, setup an aggressive H/C setup with full forged internals, and then around a 175-200shot for the track. But this is my show car not my DD, so boost really isnt outta the question.
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Old Oct 2, 2011 | 08:23 AM
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i know im bumping my OLD thread again here, but i was wondering, considering the fact that your heads, cam and pistons will be different depending on whether your going full N/A or for forced induction, then if buying all the necessary parts for forced induction ( being forged internals, dish pistons, cam and heads setup for boost) had to be bought in 3 separate payments, one being the forged internals, then next year being the heads and cam, then the next year being the Procharger...how would the car run say on the first year having forged internals and dish pistons with no boost, then the next year having the heads and cam setup for boost but not having it yet? i just know that keeping factory cubes even if stroked with huge cam isnt going to yield anymore than maybe 600-650 if that!..so i want to go for a Supercharger but im just wondering if theres a way to avoid those two years of running a boost built engine with no boost?...i hope someone understands what i mean by all this, i tried to explain it the best i could...:/
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Old Oct 2, 2011 | 12:41 PM
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install the supercharger first and build a fresh engine on the stand while your driving your 500rwhp stock motor into the ground. Thats the route i went on my turbo setup.
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Old Oct 2, 2011 | 02:22 PM
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Originally Posted by LCBE
install the supercharger first and build a fresh engine on the stand while your driving your 500rwhp stock motor into the ground. Thats the route i went on my turbo setup.
did u build a whole new engine as in new block and all, or just purchased the new internals , heads and cam?
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