Does anyone know if there is a company that makes an intake manifold for the i4?

Dear 1Tib,

I thought NGM House of Power had an intake for you, but apparently not. Do you want an OEM replacement manifold? Have you tried an auto recycler yard?

Byron

Yeah i thought they would have had one too, but nope. I'm actually looking for one that is ported. Upper and lower manifold

Here is one for sale on newtiburon.com , the ram-air is the only one i remember for the i4 and i don't believe it is manuf'd anymore .

http://www.newtiburon.com/forums/showthread.php?t=173269

I have seen this one for sale, but it doesn't have any where to put the MAP sensor. Someone directed me to this website to get my manifold completely ported and polished for $345. Good deal??


http://compactdivisions.com/catalog/produc...products_id=115

Looks good to me , i think TC (NGM) wanted more than that for his stage3 delta intake which was a ported/polished stocker . I don't recall what gains guys were reporting on the dyno with a ported stock manifold . You could check that out on sites like rdtiburon.com or newtiburon.com .

Yeah i would definitely buy the one from NGM, but they don't make one for the i4. So i think my only option is to port and polish my stock manifold

Yep , that was my point , i said delta which is the 2.7 v6 as an example of price value as compared to the website you posted about for the i4 . Ngm does't even offer the stage3 ported stocker for the v6 anymore as it didn't make the expected performance gains . Ngm only offers their custom fabricated stage4 upper manifold now for the v6 .

I agree , possibly your only option is to port & polish the stock manifold if you can't use something like the ram-air .

As I stated before in another thread...what gains to you think you will get from this? You need alot of other modifications before your engine will actually benefit from a intake manifold. There is a lot more to air flow than bolting on bigger parts...i.e...intake manifolds, intakes ect...
I hope your not expecting to through on a ported manifold and get 75 whp cause thats not gonna happen. You have a small, naturally aspirated 6 cylinder...unless you got some cams/head work/forced induction, the outcome yielded isnt worth the cost invested...
Flame on (IMG:style_emoticons/default/smile.gif)

Yeah i know the gains aren't going to be tremendous or anything. just something else i can say i have done to it ya know. if i can get 25-30 whp out of the manifold and a 58 mm bored throttle body i would be pretty satisfied. Would that reasonable?

I don't think you'll see that much whp gain (25-30) from a ported stock intake / tb upgrade on the i4 N/A . The v6 delta guys are seeing around 20-25 whp at the peak with all the supporting mods but not real nice gains across the curve with a stage4 naturally aspirated . The v6 delta target is around 240 whp N/A , not sure about the i4 N/A number though that's why i suggested talking to the guys who really know that engine on rdtiburon or newtiburon . Having said that , the journey to 400 whp starts with small steps , each successive one as important as the one that came before only more expensive .

Here's a shot of TC's v6 Tib at 480 whp , he expects around 600 whp when he sorts out the fuel delivery issues .

http://www.youtube.com/watch?v=uEz8vter7sU

Very true, but thanks for the encouraging words so i don't feel like i'm doing it for nothing. I really want to get over that 200 whp mark, so i feel like i'm getting somwhere. But thanks for all the help! And nice video. The S/C sound is pure sex

Its not that your not getting any where, its that your not building the whole thing as a system...thus no real results. For one, a naturally aspirated 4 or 6 cylinder engine takes a lot of money and work to get real gains. Your engine is only going to produce x amount of horse power for x amount of air flow. With out taking that into consideration, you will just be dumping money in the car.
You need to sit down and be realistic with what you want out of it. 200 whp is going to cost you a good amount of money, especially n/a.You literally have to double your hosepower!! Do you really want to spend all that to make your car...well, not to be an ****...but not that fast? You could save that money and sell your car to get a gt, which would be a much better platform to start with. At any rate, if for some reason you choose to do it you need to write out a good plan to get there...not just buying parts you think will make it faster. For example, putting a aftermarket intake on your car will not benefit you at all...in fact it would make your car perform worse. Just buying a part to "say you have it" is kinda retarded. You should seriously read up on air flow and how intake manis work befor ebuying anything

http://auto.howstuffworks.com/question517.htm

Using a manifold that has a runner length other than what your specific head was designed for, doesn't work good. Especially if you are looking at something with huge runners.

Yeah i agree and i can tell you know what you're talking about. More then i do. So you're saying don't do headers, manifold, TB, and reflash and just save my money and just go S/C?

The s/c won't work well without those supporting mods , the reflash has to match the mods .

No..Im saying save your money and get the v6, not a supercharger.The supercharger kit costs 4000 and gets you 188whp...still nothing respectable, especially for that kind of money.Basically your car is never going to be fast unless you put waaaaayyy more into it than you wanna.It wasnt made to go fast...not being a ****, just honest.

Intake , headers , exhaust on the i4 net the same whp as a stock gt tib , around 145 whp . The s/c kit at stage 3 will put you at 230+ whp on the stock block . That is a pretty quick Tib with more whp than the new Genesis 2.0T coupe and will be a whole lot of fun to drive and still be a nice daily driver . You don't have to do anything else to it performance wise and when you tire of it you can sell all the performance parts for close to what you paid for them .

Yeah mfp, that's exactly what i thought too. Get mods up to the gt and s/c it. I've heard through reading posts that the i4 responds better to mods then the v6 anyways. Correct me if i'm wrong. But i think you guys have helped me make a decision. Get headers and then save up for the s/c and have F/I and then do nothing but drive!

Yep , good luck ! If you want to make big power with the i4 you have to go turbo , a whole different animal .

haha oh no mfp. I don't think you want to start the topic of s/c vs. turbo!!