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Old 06-18-2005, 02:45 PM
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cheap small block chevy w/nitrous

does anyone know what the cheapest setup,engine speaking to where it will take about a 250- 300 shot? i went to the drag strip last night and talked to a guy running a 355 w/ a 300 shot runnin 9.0's in the quarter, it went faster in his 53 ford than his dads s-10

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Old 06-18-2005, 05:24 PM
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You can get away with a bone stock shortblock for a few passes. The it goes BOOM.

I'd say, machine work and all, you could do a 355" shortblock with all forged parts for $1500 and have it live a long life. for a nitrous engine

Larry
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Old 06-18-2005, 07:42 PM
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nitrous is EVIL! go with a forced induction setup. you have to tune everything JUST RIGHT for a 300 shot. if you are off a few degrees with timing either way when that NOS hits your going to blow holes right through your pistons or shoot a rod through your oil pan. you need to make sure ALL of your clearances are just right and exact when building the motor also. i leave the 250, 300 and 500 shots to the pros. i was at the track one time with my buddy. he has a 72 nova with a built 350. he spent almost $10,000 just on the motor to have somebody build it for a 300 shot. took it to the track, was 5* retarded on the timing, took his run and when he came back the thing barely would run. when we pulled the heads the #2 piston had a quarter size hole in the top of it and the # 5... well... almost the whole top of the piston was gone. so, i hope you know what your doing... im not being a dick about this, but i just dont want to see you put money into that motor and have it burn up on ya. but if you decide to, i wish you luck me personally... i put forced inductions on my cars.
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Old 06-18-2005, 07:51 PM
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When running those amounts of nitrous Id recommend a progressive system. So instead of your engine seeing an extra 300hp instantly, it will space it out over a few seconds and take a lot of that sudden force load off the components. However that type of setup alone will run you many hundreds of dollars.
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Old 06-18-2005, 09:36 PM
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Run a two stage system, 150 & 150. Use the first at 3000 rpm then drop the other on top of it at 4500 rpm.
Run a good fuel system with a dedicated pump/regulator and a return line with a .055 orifice.
as was stated, all forged internals.
use a cam with 112-114 LSA
a good ignition system
stay away from the rev limiter.

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