New to the Focus/ 2.3 Duratec..time for a build?

[felixthecat]

Originally Posted by 86fiveoh

Hmm, that's what I was afraid of, not sure how the cams/intake manifold will effect drive ability/gas mileage.

I'm not too sure what kinda power is needed to run x.xx in the 1/4 but i figure anywhere in that range should make the car a little more fun so that was my shotgun guestimate for where i wanted to be

Originally Posted by sjdwales

my buddy drove his car everyday, think he was getting same/better gas mileage than me when he wasn't on it. on my 2.3/st i have intake and exhaust. plan on getting it tuned within next couple months. then in spring do most likely stag 1 cams or stage 2 without change springs/retainers.

I have Cranes #224-0010,Fwerk's header,BSD,UDP's,steeda's sri,Denso's iriduim plugs & a Fwerk's tune & I can get over 35mpg blowing down the freeway. I do like the 0012's but this is my DD & I've had more than my share of cammed up cars. They're awesome over 45-5000rpm, but not really DD style. The crane cams really make a difference.

[86fiveoh]

one question ive been meaning to ask. is it possible to delete the variable runner stuff without changing the intake manifold?

[felixthecat]

Originally Posted by 86fiveoh

one question ive been meaning to ask. is it possible to delete the variable runner stuff without changing the intake manifold?

Yes, BUT WHY? Thats one of the great things about the 23.

[86fiveoh]

Originally Posted by felixthecat

Yes, BUT WHY? Thats one of the great things about the 23.

In previous applications ive worked with, its always (after some other work has been done) been beneficial to remove that, as it begins to provide a flow restriction. i also noticed the cossi and knockoff intake manifolds appear to delete this

[felixthecat]

Originally Posted by 86fiveoh

In previous applications ive worked with, its always (after some other work has been done) been beneficial to remove that, as it begins to provide a flow restriction. i also noticed the cossi and knockoff intake manifolds appear to delete this

You can't beat a dual runner manifold= two runners- the low end is longer & the top end is shorter. Look at the SVT's or Honda's/ Acura's. You can say the Cossie's are single plane manifolds, but you can't compare a dual length runner w/ a regular dual plane manifold. You only have air flowing thru it & the composite (plastic) manifold is smooth inside as it doesn't have to atomize the fuel droplets. Yeah, you can't beat the looks of a Cossie manifold, but for a DD, you really can't beat the 23 manifold. How many guys to you see running a single plane manifold on a SVT, let alone a different one? A few people said the next step for me is a Cossie manifold w/ the mods I already have. The only manifold I'd change out to is a escape manifold= it ditchs the imrc= aka tumble flaps, then I'd need another tune for the imrc delete.

[koke'sfocus]

Yeah I have my st with I/h/3"exhaust/ cossie IM tune. And it's a blast to drive I love it but in 2 weeks I'm finishing my turbo kit so no more n/a power :)

[86fiveoh]

so basically what im thinking at this point, as far as engine wise:

-Throttlebody (factory is sticking closed, so may as well replace)
-CAI
-BSD

followed by:

Cams
Header

some form of exhaust..haven't found one that sounded good yet

[felixthecat]

Originally Posted by 86fiveoh

so basically what im thinking at this point, as far as engine wise:

-Throttlebody (factory is sticking closed, so may as well replace)spray some TB cleaner down it. A tuner w/ egr delete will fix that.
-CAI
-BSD

followed by:

Cams
Header

some form of exhaust..haven't found one that sounded good yet

When you add a header & cams get a tuner w/ the 02 senser & egr delete.
Get a Fwerk's stealth exhaust.

[Marbs]

I'd tell you to get an MBRP exhaust, but good luck since they don't make them for the Focus anymore. I LOVE my MBRP and I've never heard anything bad from anyone else with MBRP.