NOS Question Jim V
02-03-2002 | 02:16 PM
#1
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From: WEATHERFORD,TX,USA
NOS Question Jim V
Am considering NOS for a quick blast at kelo
runs. Engines are 600 ci with intercoolers and 1471's. I think I am makeing about all the hp I can with iron Merlin heads unless i add NOS. They now make 1065 with 12 pounds.
Ideas and help appreciated
Thanks Loy
runs. Engines are 600 ci with intercoolers and 1471's. I think I am makeing about all the hp I can with iron Merlin heads unless i add NOS. They now make 1065 with 12 pounds.
Ideas and help appreciated
Thanks Loy
02-03-2002 | 06:50 PM
#3
speel chekk this fokker!
Joined: Feb 2001
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From: Locust Valley, New York
youa re gonna haev toi prop it to run under teh NOS. If it was propped for max speed withjout NOS when you hit the button at full tilt your rpms are gonna go through teh roof. I have heard taht NOS is good on blower motors becasue it casues the fuel/air charge to be lower so with more boost you are ok. You will also need to jet richer. The NOS will allow you to burn more fuel so you need to supply it. Talk to dustin whipple he does alot of drag engines. SO i woudl assume he has experience setting up blown NOS engines.
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02-04-2002 | 11:32 AM
#8
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What rpm are you making 1065 HP, where is peak torque, what is WOT rpm now, how well is the exhaust side of the heads ported and what castings are they, what exhaust are you running in the boat, what is the camshaft duration/lift @ .050, what is the static compression ratio of the engine, what ignition system, and are you willing to dyno tune the experiment. The iron heads really concern me. My first instinct says replacement carburetors and alchohol for fuel. You could get much more controllable horesepower, but NOS could probably be made to work. I'm getting a headache already. 
02-04-2002 | 10:18 PM
#9
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From: WEATHERFORD,TX,USA
They make 1065 @ 6200 rpm, peak torque is 990
@ 4600 rpm. WOT rpm is 5900 to 6000. Heads were done by Inovation, don't remember the castings. Cam specs-685in. 692ex. duration is
269in. 276ex. Compression is 8.5, ignitions are FirePower by Nutek that are one the last sets made before Holly bought them. Exaust are CMI Sport Tubes and dyno is a yes.
Thanks again
Loy
@ 4600 rpm. WOT rpm is 5900 to 6000. Heads were done by Inovation, don't remember the castings. Cam specs-685in. 692ex. duration is
269in. 276ex. Compression is 8.5, ignitions are FirePower by Nutek that are one the last sets made before Holly bought them. Exaust are CMI Sport Tubes and dyno is a yes.
Thanks again
Loy
