Suggestions on my Multi throttle m20 intake

[BavarianBimmer]

Otherwise you can experiment with an vaccuum pump from an diesel engine :?:

now that you mention that , the Jeep CRD Grand Cherokee 2.7L Benz engine doesn't bring a kind of pump with it's own cluth like an A/C compressor for the Brake booster?

It's ver compact , but it uses 6rib belt not "V" belt... :?

that's quite interesting, we have one in our showroom, I'll take tomorrow a look to that system

[rs4pro3]

Looks that is runn of the Cam, probaly would be hard to implement on a non Diesel engine.I'm browsing ebay right now to see what I can find I don't mine 6 hoses under the throttles but 12 was going to be too much.

[BavarianBimmer]

Maybe the system that Diego mentioned from the Chrysler/Jeep with a modified pulley
I don't either know if that's possible I tought it was a bright idea

[rs4pro3]

I wonder if an electric cruise control Vacume pump would be powerfull enoughhttp://cgi.ebay.com/ebaymotors/ws/eB...478073312&rd=1
Or something like this

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=42605&item=2477879258&rd=1&ssPageName=WDVW

[BavarianBimmer]

I prefer the last one
vaccuumpumps for cruise control will be too small if you use the brake pedal often IMO

[rs4pro3]

Ya I'll have to search around to see where I can find a new one.

[rs4pro3]

Dang those pumps are expesive I just found 4-5 new ones for sale all in the range of $300-$400 they seem a populor item for Hot rodders with big cams.

[BavarianBimmer]

oh damn :o
you don't want the used one ?

[rs4pro3]

I don't have any money to spend right now on it(if only I didn't need 4 new tires)

[EVOIIIM3]

Create a vacuum log and put it across all the TB's, then tap the booster and ICV to that.

What are you going to use for a plenum? You need some type of big "box"to attach the TB's to.

How are you planning on syncing the TB's? Did you sync the throttle plates?

[rs4pro3]

I'll be ussing a modifed E36 M50 manifold as the Plenum, The throttles will all be snykwith regulor carb attaching throttle plates

[Victell]

Create a vacuum log and put it across all the TB's, then tap the booster and ICV to that.

I agree. This is what I would suggest.

Also, vacuum has two sources - manifold and ported.

Manifold vacuum is what you are referring to when you say "engine side." This is what you need for your brake booster and ICV. This is vacuum sourced from after the throttle plates. Ported vacuum can be tapped into before the throttle plates. Ported vacuum is usually only used by automatic transmissions though.

Good luck. You have some unique modification ideas. How did that MAF project ever work out?

[rs4pro3]

I haven't messed with the Maf in while I finished school a week or so ago, then redid my suspension So I'm just no picking back up some of the projects I started.

[E30-323ti]

Go with the 6 connection to the TB's after the throttle plates.
Tee all these together and go to a vacumn accumulator (a sealed box/cylinder 1.5-2L), take lines off this for the brake booster and the ISCV, and for a MAP sensor and ditch the crappy MAF or AFM and run individual filters (socks) off each TB, that way you can at least tune the trumpet length easy as well.

my 2c.

Keep up the good work.

[rs4pro3]

Ok guys thanks for your suggestions. Do you not think there'd be a problem with running the brake booster and having the idle control valve off the same source? I'd think at idle if you taped the brakes the booster sucking in Air would draw air from the ICV also cuasing the idle to stumble but I'm not positive on this. Maybe I'm thinking wrong on that.