Whats the weak point in the 3.4L

[MustangEater8251]

I am not tlaking about cast aluminum pistons.
I am tlaking about what would give more power.

Better flowing heads, a cam, ported lower intake, 3 angle valve job.

What would be the best for getting more power in the upper RPMS? The engien jsut falls falt after 3700 with my stock exhasut setup, and with it opened up for the strip, it goes higher but still jsut drops to nothing.

[Patrick Javert]

.4 liters short of a 3.8, 2 cylinders less than a V8 :D truthfully, it'd have to be the long block of the engine, if you've already done intake and exhaust

[MustangEater8251]

If I wanted the easy way to gt a fast car I would have gotten a v8, if I wanted an easy way to get a faster v6 I would have gotten a 3.8L

I like my 3.4L, hotnestly, if my dad offered for a new car, and offered to sell me his 2k, not sure I would take it.

[Tiago]

intake/heads/cam is what keeps it from breathing at high rpms.

cam is made for low end tq, heads don't flow crap, intake is choked.

[MustangEater8251]

Cool

thnks pretty much what I was thinking. I might have some tricks up my sleeve. [img]smile.gif[/img]

[nova]

<blockquote>quote:</font><hr>Originally posted by Tiago NOS'd Bird:
intake/heads/cam is what keeps it from breathing at high rpms.

cam is made for low end tq, heads don't flow crap, intake is choked.<hr></blockquote>

How could you get the intake to flow better?

I've been researching intake design and from what I can tell its so far from good flow characteristics as to be close to hopeless.

Does anybody make an aftermarket intake for the 3.4L or are you just stuck with stock.

[Tiago]

my intake is a good improvement over stock, its good enough for 8k rpm [img]smile.gif[/img]

[nova]

<blockquote>quote:</font><hr>Originally posted by Tiago NOS'd Bird:
my intake is a good improvement over stock, its good enough for 8k rpm [img]smile.gif[/img] <hr></blockquote>

It does look like would be a good improvement.

Where can one acquire such and intake and heads?

I just ask because my next project after I finish my turbo setup is going to be building an engine to go along with it so I can run higher boost. I wanna stick with the 3.4L for originality sake.

[MustangEater8251]

Better question is which is the worse. do you think the cam will make the biggest difference, or are the flow rates that poor. I think its a cam thing to the car ha alot of grunt way low but dies out up top. most car I have dirven its flat, or more poewer up high in the power curve.

[nova]

<blockquote>quote:</font><hr>Originally posted by MustangEater8251:
Better question is which is the worse. do you think the cam will make the biggest difference, or are the flow rates that poor. I think its a cam thing to the car ha alot of grunt way low but dies out up top. most car I have dirven its flat, or more poewer up high in the power curve.<hr></blockquote>

Hmmm. Depends I guess. I don't know too much about choosing a cam so I can't say.

In any event more airflow can't hurt.

[MustangEater8251]

I know it couldn't hurt, but I feel the best way to tune a car is go after what needs the most attention first. If not you will be like the guy who spent like $6k on his trany and ran low to mid 16s in a 3.8L.

For some reason I think I need a maybe better flowing heads then to the cam. Feels like the car is choked down up high.

any other opinions

[southern94]

the heads are very restrictive mine are being done right now the shop said there is alot of room for improvement also getting the intakes done and as far as cam custom grind is the only way these2030 cams are crap.

[nikkev]

The heads and intake ports are TINY!When I had my old 3.4 apart you would be amazed that any air was able to get throught those tiny passages at all!
Kevin

[Tiago]

I can't say what to do first, heads/intake or cam, it should really be done together, even a decent good cam wont make any power if the heads can't flow enough, so Id just do em together [img]smile.gif[/img]
the power is in the heads, the cam just makes it available.

[wolf]

<blockquote>quote:</font><hr>Originally posted by Tiago NOS'd Bird:

the power is in the heads, the cam just makes it available.<hr></blockquote>

that is true for any engine