I am installing a set of Toda Cs onto a B18C5. I am curious as to which header you guys would recommend running with the Spec Cs for the most efficient power gains. Please let me know of your thoughts and opinions. By the way, the head is slightly modified, as well as the block, but I am basing opinions on a stock ITR motor for now. Thanks.

MIchael.

Spoon 4-2-1 (I hear that the gains are most prominent on milder cams like OEM or Spoon vs. higher lift cams)

JDM ITR 4-1 (4-1 design yields gains in higher RPM bands maximizing gains in higher lift cams vs. 4-2-1 design)

JDM DC 4-1 (Cheaper and ligher version of JDM ITR 4-1 w/ poorer build quality?)

Other? (Below $1000 for the price of the header)

 

Toda.

 

All of those flow like crap for a big cam setup.
Talk to SMSP.

 

Thanks for the info Steve.

I guess I am at a loss with all those headers as far as flow is concerned.

I actually have a Hy Tech header, but am having issues with mating it to the cat that I was given with the header, as well as getting it to clear the transmission housing and getting it to mate up to the b-pipe.

I don't want to have to weld onto my Mugen b pipe, but it seems that I am running out of options. I am also having issues with the secondary 02 sensor, no place to mount it. I also live in California where under hood checks are not uncommon.

Austin, are you here? can you help me out??? Thanks guys...

MIchael

 

mugen b-pipe? is it the twin loop exhaust? I dont know how well those flow....

 

Yes, I have the Mugen Twin Loop. It was that or a stock ITR exhaust. I got it with the car. Please help me out with any more info guys. Thanks.

Michael.

 

yeah, a new exhaust would be good too

 

Hello there Mike...are you at home? I have a few ideas for you.
Austin

 

Toda's own header is designed to work with spec C's.

 

and??

lol

 

Not sure what problem you're experiencing as I had the same cat as you now have...the transmission housing requires a little modification to make it fit correctly...not fun, but well worth it.

Sell the Mugen exhaust for a pretty $$$ and get something else...give me a call and we can talk.
You'll need to pull the O2 sensor out and extend it ~6-8", just a little bit of time...and the CARB legal thing is still in the works.

Hope that I was able to help somewhat, I sent you an IM...hope that you got it, I'll send you my cell number and have you call me later.
Austin

 

The dude's asking which header would work efficiently with his spec C cams, and I recommended the Toda header, which part of that did you miss?

 

toda header or smsp header, depends how modded your engine is. sgT has the sms and i have the toda header. both of our engines are modded pretty well, but i would say if you go all out then get the smsp header. have fun waiting 3 months or so for it though

 

Toda

 

Blade, send me your toda header so i can test it against my sms header.

 

you can test mine later this summer, told you i was going to end up buying spec c's. get my bonus in june and then i'll get them.

 

thats cool, but i want to see Blade's Toda header

 

3 month wait? i dont think they are in that much of a b/o

 

I think that was in reference to the SMS header which is custom made to each application.