JDM CTR FD2 intake manifold question

[BTRobertson]

Will this intake manifold fit our U.S. Si with the stock throttle body? Anyone know or have connections to find out? I see some of these on sale through certain JDM sites and the price is actually quite good. One of the main improvements of the Type R K20A over our U.S. Si K20Z3 is the intake manifold. This would be a great mod if it fits without any other major modification. Just curious if anyone knows. Thanks all. I'm still researching...

[s0opa_Si]

i would like to know as well. Been wondering about this.

[BTRobertson]

Just got this from Greg at GTMotoring:

We haven’t installed it on any cars here yet, but the flange on the head is the same, at the throttle body, may need to tap a hole for the air idle bypass if I recall.

Could be a possibility. I'm going to check with my speed shop. For $360.00 shipped, that's a good deal that would really help the N/A setup of our cars because the IMG on the CTR FD2 is better flowing.

[NitrousG35]

Originally Posted by BTRobertson

Just got this from Greg at GTMotoring:



Could be a possibility. I'm going to check with my speed shop. For $360.00 shipped, that's a good deal that would really help the N/A setup of our cars because the IMG on the CTR FD2 is better flowing.

Wow, that's great to hear. Price is right too. I too have read about the intake as helping increase hp over the USDM Si.

[BTRobertson]

Yeah, and he's now checking with a company who has purchased this exact same intake from him several times for project cars to see what other "gotchas" are involved with the fitment. Whenever I know, you'll all know.

Also, if this is going to work, this will be my next purchase. After all, I have a "Type R" badge under the Si badge on my car (rice, I know, but I like it and I'm a true JDM fanatic) so this would actually get me VERY close to having a Type R engine because the only real differences are the valve cover (red, which I'm getting as well) and this intake manifold. The other change is the header, but I'm going aftermarket with that and not JDM.

See? This is another N/A mod that will fit perfectly and add air flow, and still work with our IMGs. Stay tuned for more JDM sexiness.

[jackolee]

interestng.
do more research on this. everyone would like to know this

[Nathen]

can you link me where you found it for $360?

[mattsbobo]

Originally Posted by BTRobertson

...After all, I have a "Type R" badge under the Si badge on my car (rice, I know, but I like it and I'm a true JDM fanatic)

In for info on the IM, but yeah, you're right. That is rice as hell FTL.

[ReDHatchyGuy]

I believe they use the exact same IM we do.. our cars come with the RBC IM which is the best stock manifold for the K series... Ive never heard of the R coming with a diff IM i think you need to do more research..

[Sirbelch]

Any literature on how the JDM CTR IM is better than the K20Z3 IM? Or are we just assuming its better because its off a Type R?

[Nathen]

the manifold on the CTR is not the same as an RBC.

[Nathen]

[NitrousG35]

Originally Posted by Nathen

I can only make out three words on there: NSX, Type R and DC5. The rest is Greek, or in this case, Japanese to me.

[Nathen]

the CTR intake manifold is the RRC from what i've found.

[BTRobertson]

Originally Posted by ReDHatchyGuy

I believe they use the exact same IM we do.. our cars come with the RBC IM which is the best stock manifold for the K series... Ive never heard of the R coming with a diff IM i think you need to do more research..

Uh, okay. That part's already done...the JAPAN-ONLY CTR FD2 sedan - the one that Mugen then took and made the Mugen RR (do your research please; I know quite a bit about this) comes with a completely different IM, so now the question is: will it require any major modification for our U.S. Si. The answer appears to be "no", but still digging. Cheers.

[BTRobertson]

Originally Posted by Nathen

the CTR intake manifold is the RRC from what i've found.

Incorrect...I mean, CORRECT!!...the RRC IS the same part number as the new IM on the FD2 CTR. The other guys are thinking of the CTR in Europe, which has the RBC. Look up the FD2 Japan-only Sedan...you guys are switched around. The FD2 comes with a different IM and you are able to get it. Now I'm just digging around for modifications and actual gains.

Me has emails to prove it, too, just making sure I've got everything collected before I post up. I have quotes and double-checked part numbers. All I am waiting for now is verification from people who have purchased it for any gotchas during installation. As of right now, I've confirmed that the flanges match, it's now a question of the throttle body.

[Nathen]

yea notice how I said RRC not RBC. SO how am I incorrect?

[BTRobertson]

Originally Posted by Nathen

yea notice how I said RRC not RBC. SO how am I incorrect?

Oh crap, sorry brotha...didn't even catch that. Edited. LOL Sorry...you're right then, you found the NEW part number for the Japan CTR. Good job, that's correct.

[Nathen]

the throttlebody from what I understand... on the CTR is 65mm

[BTRobertson]

Originally Posted by Nathen

the throttlebody from what I understand... on the CTR is 65mm

yes, correct again, but there may be an easy mod to make ours fit just fine, we'd just have to make sure we increase the air flow with a spacer or summin'. Again, still researching. There may be a way to get the TB as well.