Not DIY's or carbs, but real deal ITB's. Who makes them? Weber still do em?

 

no one on the ITBs, that I'm aware of.

I -think- most of the carbs have been discontinued as well, Mikunani (sp?) had some for a while or perhaps they were just adapted (I'd contact Bisi or Mista Bone about this), and I believe weber made some adapters for a while.

You're most likely going to be stuck building some, unless I've missed something all along.

I've been considering offering a set, but unfortunately most D series guys don't have the money and in the small runs I'd have to make them in, it'd cost wayyyyy too much money.

Nathan

 

any sidedraft carbs will work

all that is needed is a manifold made which isnt that hard


Has far has itb's for a sohc no one has and no one will make them


diy itbs are your only choice

 

I've sent TWM an email for pricing info on a set. Their custom sets run 4,500. But thats for an app they don't do and the front mount injectors. Don't think it would cost too much to redesign the flange part of it from a B series.

I'm trying to find out if Weber still makes their DCOE carbs. If so I could use those and have Brad(RLZ) machine the flange. I would just use carbs but this car is used for track events and I don't want to have to fool with any starvation issues that could arrise.

 

Ok this is speaking from experience.

On my current d15B that is carbed using 44 Mikuni PHH carbs, I am using a TWM manifold. This is a typical TWM dcoe style cast manifold.

You can either run weber dcoe, dellorto dhla, OER, Mikuni, etc sidedraft carburetors on this manifold.

Additionally, quite a few companies make DCOE style ITB units, like TWM. Read here..
http://www.twminduction.com/Th....html

You can also order this same style of throttle body from Weber.
http://www.redlineweber.com/ht...e.htm

They are intended for those people who decided to change from DCOE carbs (**cough cough sell outs cough cough cough** lol jk) and wanted something that would bolt on right in there place.

You simply order a left and a right and order the correct linkage, tps, and fuel rail.

TWM no longer makes carburetor manifolds, and they sold this section of the business to Pierce manifolds http://www.piercemanifolds.com . A

And yes, weber still makes carburetors. They still make complete kits for various honda engines, including 88-00 sohc kits, non vtec integra kits, etc. What you could do is simply purchase the weber manifold seperate from the kit.

You could also get two DCOE flanges from pierce and have your fabricator make a manifold for you.

So yes, there is a store bought alternative to homemade ITB's for d series that usually have no mathematical reasoning behind them. Anyone saying there is no pre-made alternative doesn't know what they are talking about.

Have you ever considered running sidedrafts? All the myths and other crap are 99% from people who never ran them, or were just simply too ignorant too harness their utter simplicity.

I MAY be getting rid of my TWM sohc manifold, along with 2 sets of Mikuni PHH, because my new engine requires Weber 55mm DCO/SP race carbs.

Hope this info helps you.

 

I've talked with a couple of people about running carbs before (D16DCOE45 and bisi) but I'm not sure about it since I do track events with my car and don't want to bother with any starvation issues that could arise.

 

If you change your mind about the diy itb's pm me I can help you out.

Eric

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">I've talked with a couple of people about running carbs before (D16DCOE45 and bisi) but I'm not sure about it since I do track events with my car and don't want to bother with any starvation issues that could arise.</TD></TR></TABLE> People have raced from the 60's to now at track events with Weber Carbs and not had starvation problems. I wonder how they did that before Fuel Injection?

 

The IM/carb setup from a 4th gen Civic?

 

Apparently there is SO much more to tuning a DCOE type carb than most of the traditional Weber guides or manuals can tell you. Alot of these guides came out WAY before wideband o2 sensors were common/inexspensive so much of what the car was doing in terms of AFR was estimated or guessed--come to find out the wideband indicates something totally different. I have had my Webers for a while and am still trying to figure out the details. One you have a high-end carbed car---fuel injection just seems less elegant--to me anyway.

 

Not to say fuel injection isn't a fantastic way of doing things--it most certainly is, but there is just something really cool about good sidedrafts....

 

Also, from what I hear (no personal experience though) the Dell'orto DHLA has a much more advanced (read: smoother) progression circuit. For those that do not know the idle/progression circuit controls the transition period from idle to when the main jet starts taking over fueling--which could be from say 1000-2500 rpm, and is responsible for much of the driving done on the street or in traffic.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">I've talked with a couple of people about running carbs before (D16DCOE45 and bisi) but I'm not sure about it since I do track events with my car and don't want to bother with any starvation issues that could arise.</TD></TR></TABLE>

ever seen the GT3/GT4 road race cars? most of em run side drafts. BTW i autocross my car.

dcoe sidedrafts have been used in road race type environments for decades, in relation to what donf said.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaeOne3345 &raquo;</TD></TR><TR><TD CLASS="quote">

ever seen the GT3/GT4 road race cars? most of em run side drafts. BTW i autocross my car.

dcoe sidedrafts have been used in road race type environments for decades, in relation to what donf said.</TD></TR></TABLE>

My old GT4 set up

 

Guestimate on how much time it would take to dial in the carbs on a 1.8L D with a real big cam? Dyno time is expensive around here and if I run ITB's have have Jack @ P1 tune it on AEM it would only take a few hours.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMSP &raquo;</TD></TR><TR><TD CLASS="quote">

My old GT4 set up

</TD></TR></TABLE>
lovin the abs setup