boostedb20z

iTrader: (1)

What happens if you use a divided turbo housing with open mouth manifold ?????? just wondering

ChampWhiteTegra

good question i would like to know this as well

boostedcivicsir

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ChampWhiteTegra &raquo;</TD></TR><TR><TD CLASS="quote">good question i would like to know this as well</TD></TR></TABLE>

only thing, you dont benefit from the divided pulse.
the divided mani's are setup to have the exhaust pulses follow each other to the tip of the turbine wheel. if you arent using s divided mani, you just loose that benefit. sacrifice is a little turbo response.

john ferg's car was a 40r? i think? divided housing with a run of the mill bottom mount manifold.

.CUBISH.

they had a 4067 with a standard tang. rear... non div.

Muckman

iTrader: (2)

You dont get the gains of the divided inlet and you get the losses of a big bar in the middle of your exhaust flow.

boostedcivicsir

never got into it that far w/ john, an assumption on my part. sorry. but still i stand by my statement above - the turbo on fergies car.

HiProfile

You wouldn't see that much of a loss with the exhaust moving around that divider on a Honda. It comes down to the AR though, which is calulated by the cross-section area & radius. Since the undivided has a larger area at the inlet, the calulations to get the A/R means the radius (at least at the inlet) is a bit larger. This means the same A/R housings would lead to a bit more area (flow) for the undivided's inlet.

This is why lots of divided guys use a larger A/R when running a divided housing & manifold (but not too much bigger) - they still get more response, but have more overall flow past the inlet.

Running the same A/R divided & undivided on the same undivided manifold would give a ever-so-slightly faster spool with the divided housing, but much more power for the undivided.

boostismycrack

really? how much is much more? have u tested this? just curious.