Im looking for a topmount h22 twin scroll manifold with dual waste gates for my 97 Accord coupe, I know someone posted some pictures of one not too long ago i think they were from New Zeland. Any info would be great, thanks!

 

 

are those improperly paired?

 

Nope, they're paired right.

 

nice manifold!

 

oh i see where that pipes coming from, i was mislead of where they were going

 

There is no such thing as a "twin scroll" manifold. Twin scroll refers to a type of turbine/housing design that started off being used in diesel engines many many years ago and has just more recently begun to bleed into the "tuner" markets "termanology". The TST (twin scroll turbine) housing derives its name from the geometry of the exhaust gas inlet into/around the turbine. It works like this: Two different-sized scrolls are generally used, a primary and a secondary. Typically, the primary is open for low-speed operation, and both for high-speed use. This creates the ability of the TST to be a small A/R housing at low speeds and a large A/R at higher speeds. TST designs are of merit in that they offer a better combination of low-speed response and high-end power.

The manifolds used (and the one pictured above) are NO different then that of the divided type used in the past to work with a divided exhaust turbine housing (twin scroll), i.e. two runners go into each side of the "divide". In the case of most inline 4 cylinder manifolds, it is correct to run 1,4 and 2,3 together so that the exhaust pulses are as equal and as uninterrupted as possible. This keeps turbulence and back pressure to a minimum. This is the reason that a divided manifold and twin scroll turbo combo has a better more efficient and faster “spool” up and power delivery than that of a standard undivided turbo and manifold combo.

-J

 

does any one know how much this manifold cost ?

 

I'm the person who built it, you can send me an IM or email RCautoworks@gmail.com

 

i want o see if any one make custom twin scroll manifold for a h22 inside a eg hatch. something that look crazy.

 

Time to call some fab shops and make something pimp for yourself. Something looking "crazy" means "crazy" money.. No since in asking if you have champagne dreams and soda pop money when trying to decide here.

 

www.RCautoworks.com check them out. the first pictures posted is my manifold and turbo in my 5th gen prelude. bob and brandon do great work at a good price!

 

I really like this view of it.

 

You should, I mean considering you welded it and all.... :O) I do too... Some dude took it at the HT meet at GG right after we got the setup done.

 

I've been saying this all along for over a year and a half. Thank you for being thorough in your description

 

Yeah, me too ! This is just one of many mis-used terms in the automotive world that really get to me.....

Thank you though.

-J

 

 

TS housings arent all they are cracked up to be. Ive seen open .68 housings outflow .80 TS housings by more then 40whp on the exact same car and spool up within 100rpms of each other. Yes the .68 is smaller. But if it flows more theres no need to go bigger IMO.

I run open housings on every car that i own.

 

Considering it wasn't really a "TS" housing, it all depends on what application was used.

 

you would need to go roughly 60% larger on the divided housing to be a good comparison. The internal divider takes up quite a bit of space.

 

True. But thats hard to do really. I mean 60% larger then a .68 housing would be like a a 1.08 lmao In most applications they dont even make that large.

I had a GT4294 with a 1.15 TS on my DSM for a while. Full boost was around 6100 with stock intake manifold, stock tb, and a cams.

Ill just personally will never own a TS unless it was my only option for the application that i wanted. When u can take a slightly smaller open housing and get your response realitively similar and make quite a bit more power. I just dont see the advantage. My 6262 billet has an open .68 and i love it. I actually thought for a while about getting the .58 for a little more response but was afraid of choking the turbine at 35psi or higher. Im happy with what i decided to do.

 

turboelements.com has some

 

"YOU don't see the advantages"? Well, I'm sorry for your lack of "seeing" actual engineering data/fact...... Good luck with your up and coming projects bud

-J

 

This is getting better by the minute.

 

30 psi gst - If you don't understand divided manifolds( not TS like you keep stating) then just give it up buddy.