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  #16  
Old 01-31-2010, 08:58 PM
2007BlackFX4 2007BlackFX4 is offline
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Quote:
Originally Posted by sickranger3.0 View Post
yeah i wish i had a 4.0 lol oh well. its all good. i bet your 4.0L with 4.10's is quite quick
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Originally Posted by bigcountry View Post
my 3.slow with 4.10s will lite up the tires on starts but by the time i get to highway speeds its a dog i can do easily 80 or 90 without a problem i just dont like to see my rpms that high as in 4,000rpms to 4500rpms it makes it kinda nervous
haha yeah its pretty fast
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  #17  
Old 01-31-2010, 09:30 PM
stephen stephen is offline
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[QUOTE=STL;60870]2.3 Engine 117hp @ 4500 RPM (1998 -1999)
3.0 Engine 145hp @ 5000 RPM (1998 -1999)/QUOTE]

why is it that a 3.0 only has 28 more hp then a 2.3 but a 4.0 has i think 207(?) which is a much more of a difference? is it just the weight of the truck or what? ive always wondered this.
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  #18  
Old 02-01-2010, 06:35 AM
Johnbaum13 Johnbaum13 is offline
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Actually, Stephen, its worse than that. in 2000 they brought out the DuraTech 2.3, which makes 143 hp, and bumped the 3.0 power up to 148 by 2004, so then the 3.0 only makes 5 hp more than the 2.3.

Why? well, the 3.0 (49.3hp/liter) is an old school pushrod (OHV) motor with poor head design. The 4.0, in 207hp form (51.7hp/liter) is a SOHC motor with better heads, and the DuraTech 2.3 (62.2hp/liter) is a DOHC design with variable length intake runners. Better technology=better performance.

And to STL, I've never seen a stock Lima beat a 3.0. I have seen D-techs beat 4.0s though. The poor 3.0 doesn't stand a chance against a d-tech, given all other factors are equal.
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  #19  
Old 02-01-2010, 11:24 PM
sickranger3.0 sickranger3.0 is offline
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Very true. technology=horsepower. that's why im wanting to toss in the 3.0 d-tec in the truck. at 230hp from the lincoln ls it puts it a (76.6hp/L) still get decent gas mileage and be very quick (ill be running turboed). But i would love to run these bad boys.
http://www.coatesengine.com/csrv.html

But being that they have not made anything heads wise except for their test motor. then expense would be insane. Personally i don't see why car makers have not tried to use this type of head. whoever incorporates this first will be put ahead of everyone else in the automotive world. IMO

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Originally Posted by Johnbaum13 View Post
Actually, Stephen, its worse than that. in 2000 they brought out the DuraTech 2.3, which makes 143 hp, and bumped the 3.0 power up to 148 by 2004, so then the 3.0 only makes 5 hp more than the 2.3.

Why? well, the 3.0 (49.3hp/liter) is an old school pushrod (OHV) motor with poor head design. The 4.0, in 207hp form (51.7hp/liter) is a SOHC motor with better heads, and the DuraTech 2.3 (62.2hp/liter) is a DOHC design with variable length intake runners. Better technology=better performance.

And to STL, I've never seen a stock Lima beat a 3.0. I have seen D-techs beat 4.0s though. The poor 3.0 doesn't stand a chance against a d-tech, given all other factors are equal.
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  #20  
Old 02-02-2010, 12:21 AM
bigcountry bigcountry is offline
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ive just been thinking here recently about taking my heads off and sending them to a shop to be ported and polished and get a 3angle valve job
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  #21  
Old 02-02-2010, 08:01 AM
Johnbaum13 Johnbaum13 is offline
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That would help. The heads are the biggest limiting factor on those engines.
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  #22  
Old 02-02-2010, 10:40 AM
sickranger3.0 sickranger3.0 is offline
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yeah get them smoothed and gasket matched. try and get then to back cut valves it help with low lift air flow. I talked to tom morana and he said that a good port and polish job is good for 30hp. how true this is im not sure. but what i do know is that its very possible with as bad as the heads are from the factory.
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  #23  
Old 02-03-2010, 09:49 PM
DHEM DHEM is offline
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3.0's are tough, thats why I got one. I am considering a port and polish and roller rockers with a cat-back exhuast upgrade just to get some extra power out of it. I do know that people have slapped on superchargers to them. But the biggest point is that they were built hella tough and would be the most likey to survive out of the 3 engines.
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