LS could use more power...

WOW. That certainly was an eye opener. Thanks. That cat put a lot in to that mod. I wish he would have stayed with that a little longer.
 
blk04lse said:
Dutch - where can you buy a new LS V8 for $33K?

I agree the 4.6L is not the most reliable; however the 03-04 Mach 1 motor w/ forged internals and the 03-04 Cobra motor are the exception...

As far as adding a supercharger, turbo and/or nitrious to the 3.9, unless the motor is torn down and prepped for a power adder, the life span will be short lived...
Click to expand...

Here's the math I did when I bought my used LS.

MSRP: $40,600
Invoice: $37,300
Rebates: $6,000 + $1,000
Your price: $30,300

So a new LS V8 would've been $30,300 assuming you paid invoice and financed through Ford for the extra $1,000 rebate. I don't know if the rebates are still that high now.
 
Dutch said:
Here's the math I did when I bought my used LS.

MSRP: $40,600
Invoice: $37,300
Rebates: $6,000 + $1,000
Your price: $30,300

So a new LS V8 would've been $30,300 assuming you paid invoice and financed through Ford for the extra $1,000 rebate. I don't know if the rebates are still that high now.
Click to expand...


I bought my wife a new '04 LS V8 Sport on 1/1/05 for $31K. The MSRP was $41K.
 
Yea...That rear mounted turbo stuff is cool. I saw the Two Guys Garage episode just the other day! That is the first time I actually got to see one, even though I read about them last year. That would be something to look into for the LS. The compression ratio being so high, we need as much power as we can get with as little boost as possible. Turbo baby! I was going to post about this yesterday, but the Nyquil kicked in. Glad you guys beat me to it!

As far as the 3.9 taking 400 hp, I would be surprised if it didn't. Most bottom ends will take that much power, as long as it is a nice even flow and not a sudden shock, and not riding along with detonation. The problem is getting it there in the first place. I would feel better sticking 8 psi on the 3.9 if it was at 9.0:1. Every once in a great while, I get a little detonation in my Mustang and I have it tuned right. I would probably blow a head gasket before anything else on that 302, but on the 3.9... I would probably waste my underwear if I heard detonation.

Also, I would have no problems using the 4.6l. They are not my favorite but they have proven to be reliable engines that can take the abuse I would give it with an LS. I wouldn't trust a stock 4.6l 2 cam with 500hp, but I don't want that much power in my LS. Who wants to replace everything in the drivetrain on a monthly basis? I just want a clean, reliable 300 rwhp. You start talking wild power and you need to think about the driveshaft, mounts, suspension, and other stupid things let alone the transmission, rear-end, and engine. Save the big power for the weekend warrior car that weighs 2800-3000 pounds.

We need a limited slip diff too.
 
blk04lse said:
No problem... Funny though, whether the 5R55N or 5R55S transmission, we all seem to have similar issues w/ the trannies...

So, from what I am gathering, it appears others feel the LS could have used a little more H.P. under the hood, especially w/ the S4, CTSV, G35 Sedan and AMG on the road...

Has anyone on this forum or other owners that you know of spoken w/ Ford Racing, BBK, Holley, Edlebrock, Steeda, Anderson Racing etc., for a broader selection of aftermarket parts, such as a rear end gear, axles, stalls, emission legal/yet modified cams, upgraded heads, mass air meters, etc?
Click to expand...
You can always regrind the cams. I would bet nobody's done it yet, though.
 
Dutch said:
You can always regrind the cams. I would bet nobody's done it yet, though.
Click to expand...

the owner of the LLSOC did re-grind his cams and ported the heads - 36hp gain. had a problem with the heads been cut too deeply and had a water jacket leak.....
 
Interesting. Not great gains, but he probably had to do alot of guessing as to which cam provide would be best. That guy's a real trail blazer. Did he have any sort of chip or dyno tune to ensure he got the full benefit of his work?
 
Dutch said:
Interesting. Not great gains, but he probably had to do alot of guessing as to which cam provide would be best. That guy's a real trail blazer. Did he have any sort of chip or dyno tune to ensure he got the full benefit of his work?
Click to expand...

this was long before the PCM was cracked.
 
Man that article on the STS turbo is great. I havent bothered to look em up yet though. Does anyone know what they cost?

From reading what I have read so far it sounds like a great system and now that the PCM can be tuned this thing and the might offer up some serious ponies.
 
A few things...

1. Besides the tire and spare, where can we lose weight w/out deminishing the integrity of the car? On the car, not the driver... ha ha ha

2. $4000 - $5000 + for a supercharger is ridiculous, especialy when you can get a Powerdyne (6 lbs) under $2000 for a 5.0 L Mustang... An option is the pick up a used supercharger head unit, but fabricate the plumbing and brackets.... May want to increase the fuel injector size (if available) and install a fuel pressure regulator...

3. Only 36 hp out of port heads and custom cams???? Man, that is where NMRA Mustang engine builders/modifiers come in like Ed Curtis or Rick Anderson, where they can port and freshen up the heads, and create custom cams that are built to match the flow rate of the heads (they have software that spits out the cam specs based on all of the variables of the moto and setup of the car - they do make emissions legal cams too).

4. Unless I am mistaken, I do not believe there are Stalls out there for this car... Are there steeper rear end gears? Will the 05 GT aftermarket gears fit? And we do not have limited slip?
 
blk04lse said:
1. Besides the tire and spare, where can we lose weight w/out diminishing the integrity of the car? On the car, not the driver... ha ha ha
Click to expand...

Not that I know of. I mean you can pull the rear seat out (it's fairly light).

blk04lse said:
2. $4000 - $5000 + for a supercharger is ridiculous, especially when you can get a Powerdyne (6 lbs) under $2000 for a 5.0 L Mustang... An option is the pick up a used supercharger head unit, but fabricate the plumbing and brackets.... May want to increase the fuel injector size (if available) and install a fuel pressure regulator...
Click to expand...

The supercharger I am testing should be half that in price.

blk04lse said:
3. Only 36 hp out of port heads and custom cams???? Man, that is where NMRA Mustang engine builders/modifiers come in like Ed Curtis or Rick Anderson, where they can port and freshen up the heads, and create custom cams that are built to match the flow rate of the heads (they have software that spits out the cam specs based on all of the variables of the moto and setup of the car - they do make emissions legal cams too).
Click to expand...

remember - that was back in the day before we could adjust the tuning.

blk04lse said:
4. Unless I am mistaken, I do not believe there are Stalls out there for this car... Are there steeper rear end gears? Will the 05 GT aftermarket gears fit? And we do not have limited slip?
Click to expand...

another LLSOC member is working on creating a torsen rearend.
 
eL eS said:
hmmm turbo or sc?
Click to expand...
SC will be eaiser, the turbo has more hp potential. I think either will produce more than we can handle - so I'm going with the easiest to maintain and lowest initial cost....
 
yeah despite their propaganda about it being safe mounted low and to the rear the jury is still out on the turbo gimmick. Fortuneately or Unfortuneately their is still time to decide.
 
Not to highjack the thread, but how is the getrag 5sp used in the v6 models? I've been serioiusly considering my next project using a 3.0 v6 5sp LS with a turbo....

I know quite a bit about turbocharging and would very much have been wanting to play with a 24valve 3.0, an awesome motor by any means. I figure a solid 400hp on street gas should be a walk in the park. Anyone know where I can find more info on the manual transmission, as I could not find a search button in the forums.
 
Putter-GLHT said:
Not to highjack the thread, but how is the getrag 5sp used in the v6 models? I've been serioiusly considering my next project using a 3.0 v6 5sp LS with a turbo....

I know quite a bit about turbocharging and would very much have been wanting to play with a 24valve 3.0, an awesome motor by any means. I figure a solid 400hp on street gas should be a walk in the park. Anyone know where I can find more info on the manual transmission, as I could not find a search button in the forums.
Click to expand...

well - apparently the reason the V8 did not use the 5spd was that it couldn't handle the v8 tourque......
 
man the LS would look so good running the GT SCCA Circuit. I get sick of seeing the CTSV just lay it down. We need equal representation.

I did read in automotive that the head of SVT, Hu Tang, is looking to start tuning Lincoln and Mercury vehicles. They would not share the SVT name but they do have thier sights set on the luxo brands.
 
Anyone have a model number for the trans? I can get ford part numbers at work but that doesn't do me much.
 
there was the one ls (black) that was turbo charged. It ended up blowing after over-boosting (or something). I think it was here on the forum.
 
2k2ls said:
there was the one ls (black) that was turbo charged. It ended up blowing after over-boosting (or something). I think it was here on the forum.
Click to expand...

post #23 in this thread..... about a page back.
 
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