Author Topic: how to get more horsepower out of my stock 360  (Read 3298 times)

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Offline 89tufframcharger

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how to get more horsepower out of my stock 360
« on: August 5, 2006, 11:40:59 AM »
whats the cheapest things i can do to get more hores power out of my 89rc   stock 360. it runs fine now but it is a dog.i have a 4in suspention lift with 33's on it.

Offline SeahawkDodge

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Re: how to get more horsepower out of my stock 360
« Reply #1 on: August 5, 2006, 11:50:43 AM »
Tuning...find out what's wrong, and fix it.  Timing may be off, etc.

Intake, cold air, high flow

Exhaust, headers, custom exhaust 2.5" dual or 3" single

Ignition,  brass contact cap and rotor set, high quality low resistance wire set, MSD 6 series ignition box, good condition Rapid Fire or similar plugs, MSD Blaster II or equivalent coil.
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gen1dak

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Re: how to get more horsepower out of my stock 360
« Reply #2 on: August 5, 2006, 07:08:55 PM »
On tuning, bumping up to 10 degrees initial is free, but will cost more in the form of higher octane gas to support the more aggressive setting.

Offline SeahawkDodge

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Re: how to get more horsepower out of my stock 360
« Reply #3 on: August 6, 2006, 07:11:49 AM »
On tuning, bumping up to 10 degrees initial is free, but will cost more in the form of higher octane gas to support the more aggressive setting.
I run about 9 degrees initial, and have no problem with pinging.  The engine is out of a 90, and is TBI.
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Offline MoTruck

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Re: how to get more horsepower out of my stock 360
« Reply #4 on: August 6, 2006, 09:32:53 AM »
33's w/ a stock motor AND stock gears...all the lil' low cost tweaks won't give you much in the way of "seat of the pants" feel. I suspect you'll soon be asking yourself "how cheap can I do a gear swap?" Depending on what you ask your rig to do for the majority of time driven, its the probably the best way to give you more punch on the low end. I'd consider looking at 3:91's, or 4:10's would probably be even better. Start looking on ebay and other sites for a matched ring and pinion take out. This site is also full of talented people w/ good advice and I think there is a great how-to for a gear swap on a 9.25 rearend. It's doable. Take your time and do a lot of research.
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Offline Nor Cal Wheelin

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Re: how to get more horsepower out of my stock 360
« Reply #5 on: August 6, 2006, 03:15:07 PM »
Ummmm yeah on that last post......
I wouldnt reccomend that you touch those gears unless you have all the tools and know what the back lash and gear mesh , crush washer, etc, needs to be.......  Take it to a shop....

Gears are a pain..... I have busted more ring and pinions than anyone I know.... Most of the time it was because I put the gears in and they were wrong..... I now have most of the tools to do this, but I also have the knowledge to take my junk to a shop....
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Offline MoTruck

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Re: how to get more horsepower out of my stock 360
« Reply #6 on: August 6, 2006, 04:17:43 PM »
Uhhh yeah, Norcal...a gear swap is not a quick do it yourself job. But, I'm a guy who had never dreamed of trying to do a gear swap on his own. But after a lot of reading mine turned out great. This is half the reason some of us have junk...so we can tear it apart. Its a challenge worth taking a shot at. How ya gonna know how everything works if you don't have it apart yourself?
Back to the original post. I agree w/ Seahawk on things to upgade, except I wouldn't bother w/ the MSD box. Ma Mopars electronic ignition is pretty good. 
'79 W-100 Fresh 360/10.0:1CR/MP Heads Edelbrock Perf. cam/727/NP203. D44& Corp.9.25 w/ 4.10 gears.

"If you can't stand the heat, then for God's sake get out of the furnace!"

Offline mid_evil_thymz

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Re: how to get more horsepower out of my stock 360
« Reply #7 on: August 6, 2006, 05:07:57 PM »
Yep gear swapping is definately NOT for the average or even slightly above average mechanics dude. Spend the cash to have a shop do it for ya. I'd like to second the previous post concerning exhaust headers. I set of hooker headers will run you about 150 and it will give you a little more help. That TBI system is crappy for modifying I'd swap the intake to an edelbrock perfamance intake (around 200 bux) and aan Edelbrock carb (250 +) depending on the cfm's you get. aan eddy 650 with that intake will get you some power. But asll the motor in the world aint gonna move the gears no faster just ups the rpms needed to move the beast with over sized tires. If the motors dogging then check the compression it could be a littlee headjob is in order LOL
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Offline SeahawkDodge

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Re: how to get more horsepower out of my stock 360
« Reply #8 on: August 6, 2006, 07:20:15 PM »
Yep gear swapping is definately NOT for the average or even slightly above average mechanics dude. Spend the cash to have a shop do it for ya. I'd like to second the previous post concerning exhaust headers. I set of hooker headers will run you about 150 and it will give you a little more help. That TBI system is crappy for modifying I'd swap the intake to an edelbrock perfamance intake (around 200 bux) and aan Edelbrock carb (250 +) depending on the cfm's you get. aan eddy 650 with that intake will get you some power. But asll the motor in the world aint gonna move the gears no faster just ups the rpms needed to move the beast with over sized tires. If the motors dogging then check the compression it could be a littlee headjob is in order LOL
There are things you can do to compensate for a mild engine, when using a TBI.  Going to larger injectors is probably the easiest though, or swapping in a 360 computer and TBI on a 318.
Besides, unless you are only mud running, a fuel injected rig is a lot better for offroading than a carburated truck.
« Last Edit: August 6, 2006, 07:22:26 PM by SeahawkDodge »
I'm too lazy to correct two people.
If they're buying, I'll be there, driving their car.
I'd like to have dessert after I desert my mother in law in the desert.
you lose if your pants are too loose.