with the 1.8L you can literally cut off the flange and weld a BP flange onto the runners; the port spacing is that close.

 

Might be a month or so.
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I'd do it for 100 dollars.

 

If I do it im probably going to do it with a stock honda mnifold, it doenst l;ook quite as good as a blox/skunk2/edelbrock or w/e but theyre still pretty damn good. plus i could pick one up locally for peanuts

 

The OBX knock-off is $20 cheaper than the other knock-off:

OBX Intake Manifold 90-94-01 Integra GS LS RS B18B FMF2 - Integra Engine Performance

 

I've started to forget some of the stuff I did.

 

This looks like it could get interesting

 

I think thsi would be cool, and give a little soemthing to play with on the dyno:
Acura Integra GSR (B18C1) Intake manifold





It has secondary runners that are opened by a set of butterfly valves.
I think this manifold is the reason why so many ppl think that VICS works this way.

 

$99 and I'll use real jb weld and a real sawzall.

 

I always thought you calculated the volume of the plenum without the volume of the runners? I know plenum and runners are both there own science and thought they where calculated separately I need to know because I'm drawing mine up right now and this would change things.

 

I always did too...but I found some engineering forum post earlier that said to include (1) runner...at least for the 150% engine displacement guideline.

This article doesn't mention it though:

http://www.amsperformance.com/pdfs/intakemani.pdf

Read second page, middle paragraph.

Even then, a nearly 2L intake manifold plenum is much better than what we've got. Anyone ever measure a stock 1.6L mani, or is that what I'm doing tonight?

 

do it! get a bucket of water...

but seriously, if these things are working for boosted B16 and B18 motors dot dot dot ...


The stock IM has 16" long runners!

 

The motor hustler sent me has an intake mani attached to it.

Will unbolt it tonight, but a bag in there and pour...seriously.

I'll be using the same said mani to hack up and put $100 Honda chinamani on.

300whp here I come...

 

Yah the stocker does have long runners. Grr and just because it "works' doesn't mean it works well!

 

^^^This

 

[QUOTE=gospeed81;511407]I always did too...but I found some engineering forum post earlier that said to include (1) runner...at least for the 150% engine displacement guideline.

This article doesn't mention it though:

http://www.amsperformance.com/pdfs/intakemani.pdf

Read second page, middle paragraph.

I couldn't find it but Ill dig out my notes on Saturday from my class on intake manifolds and see if its in my notes somewhere but I sewer the runners don't count for plenum volume in the calculation, however It has been about 5 years since I took that class.

 

I would love you if you did that.

I don't take MEEN410 until next semester (Internal Combustion Engine Tech. Elective).

Take it with a grain of salt. It was on a technical forum I use for drafting pointers at work. I've never heard runner volume considered either.


I spoiled my wife last night and didn't go out to the garage...so I'll have to measure the stocker this weekend.

 

I would have done it, but I just threw away the old plenum I cut off like two weeks ago.

 

I am getting a stocker from wanecur any day now so I can do it then. Im not trying to argue about the volume I just want to build mine correctly and make sure everyone else gets the right information. There is already some good information on this tread for some one looking to build there own manifold maybe it should be a sticky? Anyways I will be out in the garage tomorrow and will dig up my notes and post them up.

 

Me too...I mainly want to know how the stocker compares to my estimate on the Skunk2...a measure of possible improvment.