intake manifold

[epdriv3r]

lookin on gettin a new intake manifold.. any recomendations?

[RHCP0801]

rbc from the new si's

[epdriv3r]

how are the power gains .. any website that has em?

[RHCP0801]

not much gains at all really...like 5hp with kpro, search around for one, new from honda is only like $150 or something like....they need to be modified to fit though

[epdriv3r]

have u hurd anything on the skunk 2 mani. thats what i was lookin at in paticullar..

[RHCP0801]

not worth the money, but does look nice

[epdriv3r]

yeah ill prolly just stay with my stock one thanks for the info... ill spend the money somewhere else like a bottle warmer so i dont have to mess with the torche anymore lol..

[talonXracer]

You will see power losses with a stock internal A3 engine and the RBC or Junk2 mani's compared to a stock PRB mani. It has been proven countless dozens of times. Peak WHP means so very little on the street and track.

[ImportCustomx]

how is Skunk2's Junk compared to prb mani... i am just curious if you have anything proving its not comparable etc? i am not being an internet asshole either i am asking solely out of curiosity

their k series manifolds show you power loss on a stock type s (prb) head? maybe without a tune...is there any dyno sheets or anything documenting this?

Edit..just found this on their website with testing and actual dyno numbers and charts to back it up...more can be found here
http://cms.skunk2.com/id/492/K-Series-Data-Is-In/
i do realize this is on slightly modified motors, but its shows the differences well.

Skunk2 Pro Series Intake Manifold vs. factory RBC and RRC manifolds.
http://cms.skunk2.com/photo/g-492-10419dc6d9e53f10f96db051b2e1065d23258adc.jpg
Pro Series Manifold vs. RRC Manifold
- K20A2
- 11.5:1 compression ratio
- Stock cams

Variations:
- Solid line: Pro Series Manifold and stock K20A2 throttle body
- Dashed line: RRC manifold and stock K20A2 throttle body

Notice the increased horsepower and torque across the powerband when swapping the RRC manifold for the Pro Series version on a relatively stock K20A2. Also note the noticeable torque gains as low as 3,000 rpm and the significant jump in power after 8,000 rpm when the RRC manifold loses its ability to flow well.
http://cms.skunk2.com/photo/g-492-f8cdfa1322d7886511784949f9f7ca50036acdac.jpg
http://cms.skunk2.com/photo/g-492-0d0916305bd459faee49851a13b6710ccccec264.jpg

[thisisagame24]

all those motors are modded k20a2 or k24s, none of them are a3. the a3 motor doesnt rev high enough or have enough air flow to take advantage of the bigger IMs

[ImportCustomx]

oh durrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr...forgot it was a3 i was lookin for..doh!

ill see if i can find up some a3 ones...does anyone have factual information showing the skunk2 one is no good and the rbc is the way to go?

[talonXracer]

There are tons and tons of third party fully tuned dyno runs done, and the Skunk2 mani always comes out slightly lower in peak whp and alot lower in the torque dept on anything but a fully built 13:1 stage3 cammed A2 engine. Go over to K20A.org and there is all the info you will need.

And do not forget to take anything from any manufacturer as pure fiction unless it is verified by an independent third party.


Also do not forget that a RBC mani will also show losses on the A3 compared to a PRB(accept possibly with a stage3 or vtec killer setup).

[todaamann]

countless dozens of times.

this.

[RHCP0801]

i have stage 3 cams in my ep3 and my tuner said an rbc mani will only get me like 5hp

[LLH]

the only reason for getting an Skunk2 IM on a a2 would be if it is bolt on without the need for modding the headlight support/schuttle panel(?) So is it bolt on in and Ep3?

the rbc needs a slight modification to the mentioned panel to fit.. and a TB adaptor+ a couple of more things.

[USAF EP3]

PRC > PRB Find yourself a genuine DC5 Type R manifold and you will see that the difference between that and the RBC is minimal if not negligible. Plus I think not having to cut into your radiator core support while still being able to rock a Hondata intake mani gasket is well worth saving headaches and cash. RBC you need to cut, adapter and custom intake.

[02_epdriver]

I noticed a difference when I went from the PRB to the PRC in the 4.5 to red range, not a huge difference with out a tune though. Club RSX has lots of things in reading that the RRC is a much more practical Mani over the junk2

[lbk02si]

I really love my Junk2 manifold!

[hondero69]

hey guys,I'm thinking about buying a rbc manifold or a manifold type r DC5,I'm looking for extra whp .. which you recommend for a turbo k20a3? I was notice DC5 Type R manifold fit easy without cutting anything..what you think guys?

[lbk02si]

have u hurd anything on the skunk 2 mani. thats what i was lookin at in paticullar..

I absolutely love mine. Everybody is right though, it's pricey. I'll tell u this though, I felt a lot of difference in my midrange especially, and I haven't been re-tuned after I installed it!

[talonXracer]

I absolutely love mine. Everybody is right though, it's pricey. I'll tell u this though, I felt a lot of difference in my midrange especially, and I haven't been re-tuned after I installed it!

They are not really gains in the mid-range, just the fact the bottom end is almost non-existent. A similar thing occurs with the tune of a stock A2, the Vtec xover is higher and the feel is of a massive rush of power, when in fact it is simply a lack of power prior to the crossover, this is proven during EVERY dyno tune. And the same EXACT results occur when the RBC is installed on a stock internal A3.

[affiq]

They are not really gains in the mid-range, just the fact the bottom end is almost non-existent. A similar thing occurs with the tune of a stock A2, the Vtec xover is higher and the feel is of a massive rush of power, when in fact it is simply a lack of power prior to the crossover, this is proven during EVERY dyno tune. And the same EXACT results occur when the RBC is installed on a stock internal A3.

so....its more worth it to install a RBC mani rather than a skunk2 one i guess....i was thinking of installing a skunk2 mani into my k20a..after reading what u guys said...guess i'll install a cheaper RBC one...

[talonXracer]

Both the RBC and the Junk2 mani will show losses on a stock internal a3. There will be top end gains, but losses everywheres else compared to the PRB/PRC mani's. The engine simply can not utilize the amount of air the RBC/Junk2 can flow, and due to their internal dia, the low speed air flow is very disturbed and inconsistence.

[affiq]

how bout on a k20a? (jdm).. will there be losses too? sorry bro.. appreciate the help

[classiccelica]

Actually Cat man from the FF squad tested a bunch of intake manifolds on his simple bolt ons k20a engine including the skunk2 manifold. It made like 12+ whp and like 4 ftlb of torque to the wheels more than some others. The rbc made less I believe. I'll have to find the article.

[epdriv3r]

thanks for the info guys i did more researh and i am still kinda undecided still i think ima just keep saving and go for my turbo dreams.. i have my nitrious kit for sale so this see how this works out

[thisisagame24]

Actually Cat man from the FF squad tested a bunch of intake manifolds on his simple bolt ons k20a engine including the skunk2 manifold. It made like 12+ whp and like 4 ftlb of torque to the wheels more than some others. The rbc made less I believe. I'll have to find the article.

again... thats a k20a motor... not the a3 like most people here are asking about.