Headers, throttle body and cams discussion

Another option for the drive by wire guys might be 05+ Mustang V6 throttle bodies.. I know BBK makes a 70mm version for sure, only issue I saw was the DBW was on the passenger side and the TPS was on the drivers side which is versed but maybe the connectors can reach who knows, Ill be checking out a 4.0 V6 Mustang tomorrow at work to see what all might be common, that and they might be a direct bolt on, Ill go get gaskets just like what was mentioned earlier in this thread for you Gen1 guys.. We can only hope! Ha!
 
my girl has a friend with a salvaged parts place.... fri she's going to let us know if she has a 4.6 2v tb from the 98-04 stang
 
how much gain do you expect to get with a TB swap?

without changing the intake track, MAF, ....etc.
 
Alright my 05 Mustang GT twinblade throttle body arrives tomorrow, once I get ahold of it I can start fabbing up an adapter, my only concearns are EGR and other vaccuum outlets.. but at $35+ shipping I couldnt help it ahha..

Also just to add this to the thread, Stainless Works has headers and cat-backs for the Gen2 LS8's, prices range from $865 to $2400(headers only to full exhaust)
 
Missing Linc' said:
Alright my 05 Mustang GT twinblade throttle body arrives tomorrow, once I get ahold of it I can start fabbing up an adapter, my only concearns are EGR and other vaccuum outlets.. but at $35+ shipping I couldnt help it ahha..

Also just to add this to the thread, Stainless Works has headers and cat-backs for the Gen2 LS8's, prices range from $865 to $2400(headers only to full exhaust)
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What are the gains from the headers? Are they full length or shorties? I was on the Mark forums awhile back when they were looking at a group buy for custom headers. I was told that we could also most likely get headers made for the LS if we could get a down payment from 20 people and if I provided a set of stock exhaust manifolds but I really have my doubts as to whether we could get that many people on here to commit.
 
What about 4-2-1 headers and a port/polish? I haven't come across any discussion on the port/polish on this engine :/
 
Thats cause the heads flow more than you post a day Pete lol and I dont know if the SW headers are long, short, tri-y... I know nothing about them other than Im saving money.. haha
 
Missing Linc' said:
Alright my 05 Mustang GT twinblade throttle body arrives tomorrow, once I get ahold of it I can start fabbing up an adapter, my only concearns are EGR and other vaccuum outlets.. but at $35+ shipping I couldnt help it ahha..
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are you dynoing before and after?
 
I found one for free... just have to pay shipping. My buddy used to have a 2000, and he said I could have his TB and plenum for the cost of shipping. I just have to wait a bit for him to go home and get it (he's in the mil) some time this summer.


As for headers, if people have had custom ones made and only been able to shift the power curve, IDK if a grand for maybe 5 horse is worth it. They have headers, headers with cat, and headers that bypass the cat. They dont show any dyno numbers for them. With how well these exhaust manifolds are designed it is possible that you could lose power switching to these. The good thing for the first gen guys is that our exhaust tends to respond better to upgrades.
 
One more thing about the 4.6 tb. We're only gaining 6mm, but thats stock on stock. These "new" ones can be ported to get a little more, or in my case, just to catch up since my stock tb is ported
 
Don't think of it as 6-7mm gain in size, think of it as a increase of almost 10%.

That doesn't mean a increase of that much power, may mean non. Some motors take to TB swaps well and some it has lttle effect.

Also if your "ported and polished" stock TB has its stock blade you've gained pretty much no increase in air....just made it easier to get in.
 
SPSully said:
I found one for free... just have to pay shipping. My buddy used to have a 2000, and he said I could have his TB and plenum for the cost of shipping. I just have to wait a bit for him to go home and get it (he's in the mil) some time this summer.


As for headers, if people have had custom ones made and only been able to shift the power curve, IDK if a grand for maybe 5 horse is worth it. They have headers, headers with cat, and headers that bypass the cat. They dont show any dyno numbers for them. With how well these exhaust manifolds are designed it is possible that you could lose power switching to these. The good thing for the first gen guys is that our exhaust tends to respond better to upgrades.
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What if you were to do a custom exhaust manifold, custom headers, cut off the cats and then run a dyno tune? Wouldn't you think that would solve that problem?


oh and a possible Port/Polish too
 
PetesSweets86 said:
What if you were to do a custom exhaust manifold, custom headers, cut off the cats and then run a dyno tune? Wouldn't you think that would solve that problem?


oh and a possible Port/Polish too
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Ummmm someone once said its better to keep your mouth shut and let people think your stupid than to open it and prove them right. ;)


Exhaust manifold and headers are about the same thing. Its like saying windshield and front window. There is a thread about headers and it has a company that makes em for the 2nd gens. I didnt know about them till just hte other day.
 
02LSE96LSC91SE84TC said:
Don't think of it as 6-7mm gain in size, think of it as a increase of almost 10%.

That doesn't mean a increase of that much power, may mean non. Some motors take to TB swaps well and some it has lttle effect.

Also if your "ported and polished" stock TB has its stock blade you've gained pretty much no increase in air....just made it easier to get in.
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Agreed... 100% except that I would add.... it is possible to lose power messing with this.
 
If the exhuast on the LS is so effective, then why does Ford make such an uneffective system for all its other cars? I mean you take a Mustang with either 4.0-6 or the 4.6-8 and you add headers and gain 10-15 HP. Add cat back and gain anothr 10-15 HP. Add CAI and gain10-15 HP. Why is the LS so good a system that it will not gain from all this? And why did Ford leave all their other motors so under powered?
 
LEOV5 said:
If the exhuast on the LS is so effective, then why does Ford make such an uneffective system for all its other cars? I mean you take a Mustang with either 4.0-6 or the 4.6-8 and you add headers and gain 10-15 HP. Add cat back and gain anothr 10-15 HP. Add CAI and gain10-15 HP. Why is the LS so good a system that it will not gain from all this? And why did Ford leave all their other motors so under powered?
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yeah i can agree with those thoughts. the LS was the most expensive platform ford ever made, and has a jag motor NOT a modular fam ford motor
 
you gotta bare in mind that were dealing with a very small v8 3.9 isnt much displacement to work with jag, bmw, ford or whoever the manufacturer may have been, which means that in the gen 2's pump out approx 72hp/L, which is like 12 more per liter than the new 3v 4.6 mustang v8 so there not doin too bad as far as power per liter, if the new 4.6 made the same it would pump out nearly 335 hp not 300, and besides you honestly think in 04-06 they would pump out a nearly identical sized/weighted vehicle with a smaller v8 that made more hp than their new flagship mustang? right....
 
id put my 01 LS stock against a 01 GT on the dyno. it'd be pretty close! Stang would probably win in the 1/4 but not top endd or handling
 
That is what I mean. Why can't we get the same results, doing the same things?
 
we can.

but we have a lot more already done - especially in the Gen2 - to ring out most of the performance of the little engine. so it means the same mods to the LS will not yield the same improvements (%) as to the 4.6.

And the 4.6 is getting more and more designed into it OE as well...
 
LEOV5 said:
If the exhuast on the LS is so effective, then why does Ford make such an uneffective system for all its other cars? I mean you take a Mustang with either 4.0-6 or the 4.6-8 and you add headers and gain 10-15 HP. Add cat back and gain anothr 10-15 HP. Add CAI and gain10-15 HP. Why is the LS so good a system that it will not gain from all this? And why did Ford leave all their other motors so under powered?
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So instead of 10-15 HP we get 5-8 HP, right?
 
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