Leo's 07 Honda Civic Si

I love this thing cause you can definatley feel the power in mid range and it feels smooth. You guys should get your hands on one of these. And he Black Skunk2 TBS is so that it can fit our cars... Enough talking from me here are the vids

[youtube]WCjnyegbK-4[/youtube]

[youtube]4chnR-9seq0[/youtube]


08 Honda Civic Si

Engine Mods:
Injen CAI
Skunk2 Exhaust 70mm
Skunk2 Header
Skunk2 Stage 2 Cams
Skunk2 Intake Manifold/ Skunk2 TBS
Skunk2 Exhaust Cam Gear
Skunk2 Valvetrain

Thanks to the guys at Skunk2.com and http://projectimport.com/

Greg50Lt

sweet man. Thats a lot of skunk 2 stuff. Car is loud as hell. Im still debating between the RRC and the Skunk 2 manifold.

teggsr925

dyno sheets?

08SiFreak

what sort of gains will these manifolds give with other basic bolt ons? i havent heard much about them

redlined360

nice mods... totally would do the same if the wallet allowed it. ill be getting a kidd racing header instead in a few weeks.

T3KNiQe

I'm really interested in what numbers its puttin down, especially with that valve train.

i-VTEC_DOHC

hey is that freeway entrance near passwordjdm?? lmao

FijiBlueFG2

Sounds great. I really like the sound of that Si.

Second vid sounds like a sport bike.

kartman5

Sounds great and loud! I just installed the RRC IM and feel and difference but don't have the dyno results yet. Another member here found an additional 7 whp with the RRC as compared to the stock RBC. Would be interested in your results with a Flash Pro and tune!

Greg50Lt

Yea im trying to see a comparison of dynosheets with the RRC and the S2 intake manifold tuned or untuned by the flashpro. Ill be changing mine out when i do some work next year.

K5^

OP: I remember you posting a thread when you first programmed your car with Flash Pro with launch control. Does the neutral rev limiter hold you at around 5k even if you're not going to launch?

07SIcpe

My car does that, actually 5500 I believe.. Is it supposed to do that from the factory? I'm just curious..carry on

FijiBlueFG2

VSA limits the engine speed to 5500rpms, when the tires are spinning loose.

invsta

I feel like "sound" is most of what we are getting for the dollar here though.

invsta

Initial research on Skunk2's site doesn't give any data has to actual gains. http://cms.skunk2.com/id/263/K-SERIES-INTAKE-MANIFOLDS/

By no means am I putting down Skunk2, I'm just saying...

I think on an N/A motor, your best gains will be in freeing up intake and exhaust restrictions, i.e. SRI, CAI, Catback, Header, removing CAT...etc.

There may be SOME restriction in the OEM manifold, but do the DYNO research before spending another bloody $500 on a piece of metal. With the amount of money some of us spend on parts that don't help...you could have purchased an Accord and blown an Si away. Of course, Civics are more fun.

i-VTEC_DOHC

the launch control is the neutral rev limiter. you're just adjusting what rpm the neutral rev limiter engages at.

not if you have adjusted the launch control on flashpro

Civic92Turbo

Dyno Sheet

Zeusone

wow thanks for the first video. a lot better than a picture. what are the gains lol if any?

Kidnkorner

Guess you guys haven't been informed, the Skunk2 manifold isn't making any more power than the RBC.

http://k20a.org/forum/showthread.php?t=64519

http://alturl.com/a9sy
I like how the OP says he can "FEEL" the power though. That made me LOL!!!!!!!

For the money youd spend on the Skunk2 manifold you'd be WAY better off with an RRC.

rileyrat

All I can say is you adamantly defended the RRC saying that it's ported, and a nonported RRC would of out performed the RBC and Skunk2.

Right from K20a:
Could not the same be true about the Skunk2? It's a bit early to start bashing the product on one test. The only thing that was proven is that on that particular set-up, the Skunk2 wasn't better than the RBC. It's commonly accepted that the RBC is perfectly good to 300hp, after that a stock cast RBC is becoming a bottle neck, or so the theory goes. The car it was tested on was well short of 300hp, so in that aspect, the particular limit of none of these manifolds was found.

The only real way to see if it is "better" is to flow test it, see how many CFM it can move as compared to the other two. Then you have to establish how much flow is needed for what amount of HP. This will establish when what manifold should be used.

I do agree that it's possible the RRC did how it did because it's simply to big. Hell, it's all together possible that the Skunk2 ported could support more hp than both the others ported. At this point we just don't know. We need testing on something that can exceed the HP limit of the two factory cast manifolds, stock and ported. Then we need to use the same power plant to test the Skunk2 stock and ported. These tests also need to be done in a semi controlled environment, like within a decent time period of each other without conditions changing drastically.

EDIT: Sad that you, and many others, are so willing to bash a product you have zero experience with, purely based on someone else's testing. The testing done was quality, more tests like that need to be done. It just appears to me that this particular test subject wasn't up to the task of providing us with concrete proof.

Kidnkorner

What I was trying to convey was the test was skewed for the RRC because the manifold was CNC ported and that the RRC manifold would have outperformed the other 2 manifolds being compared on that application. By porting the RRC the manifold lost the velocity it would have provided in stock form.

I have conducted one such test that the RRC outperformed the RBC by a simple swap out, 7 WHP in fact. My test and the one I hyper linked aren't the ONLY tests that can be found on the web. I find it mighty strange that Skunk2, who were developing this manifold for a number of years hasn't published it's own tests.

I will continue to back that the RRC makes more power out of the 3 until proven otherwise.

I also stand behind my statements in other manifold threads that you don't change a manifold unless you want to shift the power band or your want to remove a bottleneck.

rileyrat

I read that too, seems to me that you got blasted from one end to the other for posting gains with an inconclusive test there too. For those that don't know, tests were done on different days, with similar conditions but with a decent time gap in between. No tuning was applied, and don't use the no tuning available line. Tuning has always been available to our cars, just not the best tuning solutions is all.

Anyone who deals with dynos on the regular knows (or should) that the same car on the same dyno can produce different numbers on different days, even if weather is similar. It's how it works, plain and simple. Do you have the barometric pressure for those days? Because that also effects the density of the air. The stock ECU could account for those changes in hp too.

I am by no means bashing or giving credit to any of the the manifolds, I am simply saying that you claim something that simply isn't really proven.

Caveman74

The RRC is a far better manifold than the RBC. If it wasnt, it would be on the CTR right now. They are both good, but Honda only puts the best on the CTR.

I'm surprised that Skunk hasnt done a test comparing the two

Kidnkorner

The barometric pressure is recorded on the dyno sheets cool guy. The conditions were actually more favorable for the RBC baseline dyno run.

The customer wanted to see what kind of power he was putting down, the car wasn't mine so I don't know why you are even bringing up the tuning thing. I don't know how many customers would allow their wiring harness to be hacked up just to install a piggback tuner just so I can test a manifold, then uninstall it. Both manifolds were untuned, don't know why you are even arguing this point.

The barometer as recorded on http://www.almanac.com/weather

Dyno 3/3/2009 29.95 IN

Dyno 4/3/2009 29.62 IN

Had the RRC vs RBC comparison been compared on the same day the RRC would have made more power, add in tuning for both and this margin would grow further.

But we will never know unless my customer or another wants to come back. I just sold my customer flashpro this past Friday so their might be an opportunity down the road. He was strapped for cash so he had a friend do an AFR street tune.

Next time I will get him on my Dynapack. Last time he insisted on a dynojet for the masses.

Greg50Lt

Im backing up Kid on this one. Hes done his homework on this and I too think its odd that there is no dyno sheet for results or any test done between the two. Also if you live in a strict state the Skunk2 fails emissions and the RRC i beleive is Carb legal so thats a plus.

As stated before factory to factory CTR has better parts then the USDM so why is the RRC on the CTR and not the RBC.