The new Edelbrock 4150 and 4500 Style Throttle Bodies are reasonable. $550 for a 2000cfm 4500 flange TB with electronics already installed. I think it is just a little less for their 1500cfm TB.

Dave

 

Thanks. I found out yesterday that they are still "vaporware" though. I was told that they should start shipping them "next month". My experience with that kind of statement is that it's almost always optimistic. Have you actually seen one? Do you know if it's US made?

Thanks.

Rich

 

Rich , Force fuel injection sells a 2,000 cfm 4500 flange Tb for around $650 ... Its a progressive unit and works very well..no such thing as to big on TB, its just a air gate.. engine is only gonna pull in what it wants...only time TB is a issue is when its a restriction as far as WOT performance..

 

$700 gets you any 4500 series Wilson Manifolds 4bbl TB. They are the best quality out there too.

Bret

 

No knowledge about them personally. Summit has them listed as having a ship date of Nov 16, but apparently that is just speculation. I like that they come with a GM Style TPS and GM Styled IAC Motor installed. Where as some of the others have no provision for a IAC...you have to remotely mount one if you want to use one.

Appears from the following statement off Edelbrock's Webpage that they are US made:

"These progressive 4-barrel throttle bodies bolt directly to standard square-bore or 4500 Series carb mount flanges for competition electronic fuel injection systems based on our Victor Series manifolds (see EFI Manifolds). Fully machined by Edelbrock, they are assembled/calibrated by Magneti Marelli USA and include a GM style throttle position sensor (TPS). #3878, #3879, and #3888 include a Delphi/GM idle air control (IAC) motor. #38783, #38793 and #38883 include a Hitachi Linear IAC motor and must be used with our ECU systems on the Pro-Tuner EFI Application Chart. Standard style air cleaners (5-1/8" or 4500 series) will fit."

Picture of Edelbrock TB

Dave

 

The 90mm Ford Style Throttle Body I have from them is a work of art, but I have decided to go with a 4500 Style TB.

Dave

 

Maybe...

http://nsca-racing.com/forums/showth...=throttle+body

edit: The add is over 2 years old but who knows.... I definitely have a lot of stuff laying around that dates alot further back than that.

Check around Rich, you just might find a deal. I agree that ~$700 is a bit tough to swallow, although that seems to be market price.

Good luck.

-Mindgame

 

They also seem to be made on a case by case basis so if you can get your hands on one you need to ****** it up. I waited months for Force Fuel to come through for me and finally I happen to catch a deal on a used one. Every month I called Force Fuel and he told me the shipment was due in anytime. After 4 mos I stopped believing him...

 

I know it's a gamble without having one to inspect, but I went ahead and ordered a 2000CFM Edelbrock. Their stuff is generally decent and I am getting it for <$500 as I have someone who can hook me up with their parts. I will resurrect this thread if there is anything notable to report - if it's extremely good or if it sucks (no pun), etc.

Thanks for the input. I will also let people know how the whole project works out. AFAIK it will be unique, an alcohol bracket car running EFI. At least I never saw anyone else doing it. We are going to do before and after dyno and track comparisons. I am hoping for more power and more consistency with the ability to easily adjust to different conditions.

Rich

 

Rich,
Did ya look at the ones Accufab have?
John says he has them for 4150 & 4500 sizes with optional IAC & TPS.