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Easiest Mod For 10 Extra HP??

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Old May 13, 2005 | 11:57 AM
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Default Easiest Mod For 10 Extra HP??

I'm buying the GM Goodwrench LM1 with 290HP. I like the sound of 300 better, so what's the easiest mod for 10 more ponies?

Les
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Old May 13, 2005 | 11:58 AM
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Window stickers. Lots of em.
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Old May 13, 2005 | 11:59 AM
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Headers. But get your fuel and ignition curves right to experience the full potential. Most folks leave a lot of power on the table by not tuning the engine.
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Old May 13, 2005 | 12:04 PM
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Originally Posted by gerry72
Headers. But get your fuel and ignition curves right to experience the full potential. Most folks leave a lot of power on the table by not tuning the engine.

I have headers and straight pipes/no cats and Lars is tuning the engine in August.
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Old May 13, 2005 | 12:09 PM
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OK. On a more serious note, remember that's 290 gross HP. No accessories, no nothing. Absolute best case scenario. It's the way they tested cars until '72 or thereabouts. So the best you can do is to get the carb & ignition curves as optimal as possible in order to achieve as close to 290 HP as you can. Other than that, you'd have to modify the engine to exceed this amount.

Just round the number upward slightly. Tell folks you have 300 HP. We won't tell anyone
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Old May 13, 2005 | 12:20 PM
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So your saying that you have 290 RWHP?

The quickest way to gain 10-25 hp is:

#1 Remove the mechanical fan and replace it with twin electric.
#2 Buy the smaller pulley for the damper, but at the same time install a higher amp alternator and high volume aluminum water pump
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Old May 13, 2005 | 12:23 PM
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carb spacer,good air filter,
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Old May 13, 2005 | 12:25 PM
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Originally Posted by gkull
So your saying that you have 290 RWHP?
not yet....crank HP
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Old May 13, 2005 | 12:25 PM
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Originally Posted by gkull
So your saying that you have 290 RWHP?
It's 290 GROSS hp...
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Old May 13, 2005 | 12:47 PM
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Originally Posted by page62
It's 290 GROSS hp...
gross/crank same thing no??
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Old May 13, 2005 | 12:50 PM
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Originally Posted by AGVI
I'm buying the GM Goodwrench LM1 with 290HP. I like the sound of 300 better, so what's the easiest mod for 10 more ponies?

Les
Les:Just round it off to 300. Who the heck is gonna know except you???
Welll...all that read this thread will know.
10 more horse you won't even be able to notice so it's not even worth going for that small an amount.

Dep

Last edited by DJ Dep; May 13, 2005 at 12:53 PM.
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Old May 13, 2005 | 12:53 PM
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Originally Posted by page62
It's 290 GROSS hp...
290 canadian hp
about 210 US
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Old May 13, 2005 | 01:02 PM
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$100 Permacool 2950 cfm electric fan and eliminate the mechanical fan.. That's about a 10 HP gain at the rear wheels...
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Old May 13, 2005 | 01:25 PM
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Another cheap&easy mod is intake..
Depending on the intake you are using right now, you can make up to 20 HP with a performance intake....
Holley Team G Intakes work great...
You should definetely gain over 10 HP with a Team G....
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Old May 13, 2005 | 01:49 PM
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Originally Posted by AGVI
I'm buying the GM Goodwrench LM1 with 290HP. I like the sound of 300 better, so what's the easiest mod for 10 more ponies?

Les
Hey AGVI. Is that you with Nikki?
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Old May 13, 2005 | 02:17 PM
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I know how you feel. Mine came up to 490 HP or so. 500 would have sounded SOOOOO much better. But that was no water pump, or any other accesorries. Maybe a carb spacer would have helped, but the purpose of the dyno time was to tune, not brag

~Jay
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Old May 13, 2005 | 02:18 PM
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Les, bring it over to my place, and we will get it sorted out. Better yet, before you buy anything, call me.
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Old May 13, 2005 | 02:30 PM
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change all the oils to synthetic and lose some parasitic hp friction.
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Old May 13, 2005 | 02:33 PM
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Originally Posted by Jay M
I know how you feel. Mine came up to 490 HP or so. 500 would have sounded SOOOOO much better. But that was no water pump, or any other accesorries. Maybe a carb spacer would have helped, but the purpose of the dyno time was to tune, not brag

~Jay
If I had that I would brag and brag and brag......
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Old May 13, 2005 | 03:37 PM
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Why not change the cam right out of the box? That will put you over the 300 Hp mark.
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