Skunk2 Racing Intake Manifold

[2Fast_Fiero]

Thank You Soo Much Site, that is what I was looking for, now trying to find one for a JDM. lol. ohh and Stupid, if you can't find a cam for our car, you can get one made from Crower Cams.

[StUpiD8000]

WHAERE CAN WE START LOOKING FOR A JDM B20A performance intake manifold? AND AS FOR THE CAMS, DO YOU KNOW HOW MUCH THAY ARE? I CANT FIND ANY NFO ON THEM?

[night]

well i posted that kinda blindly. ive been on clubsi a lot lately .

anyway. the ITR's are cheaper. like 220.

[PhydeauX]

If you're going all out I'd recommend the jdm b18c spec R manifold if you want to stay factory honda, or the skunk or ITR if you'd rather use an aftermarket. b16a b18a b20a, as far as mounting the manifold it doesn't make much diference which you're going to use, they all have the same ports and its no trouble at all to modify the flange. (The b16 and 18 have slightly larger ports, but if you're going all out then your going to be porting the head and that won't make a diference).



Thats a b18a gasket sitting on an 88 lx-i manifold. The 2 red dots are where the holes would have to be drilled if a b18a manifold were used. The stuff on the left corner of the gasket is for the water jacket, you dont have to worry about that when the manifold is fitted to an a20. If you were useing a b16a manifold then a 3rd hold in the center, the one that has the blue dot, would have to be drilled as well. The b20 requires no modifications.

Out of the list I think the b20a manifold would be the worst choice for a high performance engine (with the stock b18 adn b16 being in close second). They all use smaller plenums and longer thinner runners to get better low end torque and driveability. The type R and aftermarket manifolds are designed to let the motor really breathe up past the 7000 range and make alot more power up there.

andy

[2Fast_Fiero]

Well, I just did some research on those manifolds, and they aren't anything near high performance, just from my readings, but the Venom and STR Intake Manifolds are THE all around best for High Performance engines, The JDM and USDM Honda Manifolds are only good for people that want to stay with Honda and still have some sort of performance. But I guess I'll get the Venom B18 Intake Manifold.

[night]

i'm tellin ya, you cant beat the ITR for the money. it flows more than just well enough for built NA CRVtecs. thats 2 liters @ 9k rpm. a lot of air.

and PhydeauX, something i actually know more about than you :p. unless you just woke up or something and arent thinking right.
the B16, B17, and ITR (B18C5) are all the same head.
the B18A, B18B, both B20's, and B18C1 are all the same intake ports.

so basically there is the B16 head and the B18/Gsr head. the B16 (ITR) manifold will not go on a GSR without modding.

so you should figure which is the closest to start.

[PhydeauX]

Its the water jacket thats is the big diference between the b16a and the b18a. Don't have to worry about that if you're putting it on an a20a. I knew that the b18c5 and the b16a had the same head. The b18a/b and the b16a do have similar ports, neither are similar to the b18c1. I have a b16a manifold and b18a gasket in my junk collection. I've never looked into the b20s.

andy

[PhydeauX]

gg double post

[night]

the B20's are an LS head.

[2Fast_Fiero]

LS?

[StUpiD8000]

OK what intake manifold will bolt up to the stock head? Im not looking for much performace, more for show points. but some hp gain

[PhydeauX]

The b20a from the jdm 3g accord is the only one that bolts right up. It looks exactly the same as your manifold does, most honda efi manifolds look like that. If you want to show get some aluminum polish and elbow grease and polish up your manifold.

andy