TPC Racing Billet 660 Center Squirter(s)

[Hotcrusader76]

Here are the pics I promised a fellow ***boater I would post on his carb(s) build-up. These Center Squirters came out great. He bought two 660 Center Squirters converted over to 850 Billet baseplates with billet secondary metering plates.
The secondary plates allow him to change jets but still maintain an inline configuration, 1850 style's stock length. There are also Braswell B-Series cut boosters installed to maximize the top-end potential of this conversion and improve the throttle-response which will improve fuel shear at a lower vacuum signal.
Here are some pics of the build-up and components utilized:
I start off with a polished and clearcoated 4224 mainbody.
http://www.tpcracing.com/images/4224mainbody_300.jpg
http://www.tpcracing.com/images/4224mainbody1_300.jpg
The secondarys consist of a billet metering plate that utilizes a modified float for clearance and is drilled/tapped to receive Holley/MAX jets.
http://www.tpcracing.com/images/4224secondary_300.jpg
http://www.tpcracing.com/images/4224QFTplate_300.jpg
The baseplate is fitted and mapped to the 660's circuitry and capped to prevent any dirt contamination. Notice the deleted vacuum ports and secondary throttleshaft extensions. The throttle shafts are set up with welded ends, 1:1 ratio linkage, thinned shafts, and stainless hardware.
http://www.tpcracing.com/images/4224billetbase_300.jpg
http://www.tpcracing.com/images/BSeriesboosters_300.jpg
http://www.tpcracing.com/images/4224bench_300.jpg
One down another to go...
http://www.tpcracing.com/images/4224Billetcarb_300.jpg
[ January 29, 2003, 04:46 AM: Message edited by: Hotcrusader76 ]

[GofastRacer]

Very nice work, definitly a class act!!... wink :cool: wink :cool:

[jstwkd]

Ty, They look great cant wait to see them in person!

[NeoBurn]

Nice photos! They look great.

[HavasuDreamin']

Two thumbs up from the peanut gallery! :cool:

[kojac]

Looks like precision work. AOK. Kojac :cool:

[Blown 472]

If you dont mind me asking?? are you putting those on a race boat or pleasure?? And why 660's why not buy a pair of the tunnel ram 750's that you can put inline?? Is it and inline issue?? I ran two 850's inline on my ford, took four 600cfm primay bowls, 1/8 npt tap in the tube hole, pluged it and ran them inline with metering blocks on both sides. btw nice work :D

[Hotcrusader76]

Thank you RD. I am hoping to have something special lined up for OP6 on my Crusader. If I could just get a polisher that's up-to-speed with life!
Froggy sent me some new recommendations that I'm meeting up with this coming week. I will be offering Anodization, Chrome, and full polish with translucent anodization as an option on all carbs new or rebuilt. I will post pics as special projects arise.
I will take the Performance Fuel system industry to another level, even if it kills me! :D
[ January 31, 2003, 09:42 PM: Message edited by: Hotcrusader76 ]

[Freakonaleash]

Hey Ty
Nice work they look great. I can't wait to see mine. Good work
Tom

[Froggystyle]

Sweet job Ty... I would expect no less, but love the way those are turning out. I'm sure your client is going to be stoked!
RE: 660's over 750 inlines... The center squirter design has four discharge squirters for the accelerator pumps, and throws a pile of fuel at the problem every time you give it gas. I understand this to be a double edges sword, but for a drag or high performance quick throttle application, the volume of fuel dumped in by the 50cc acc. pumps prevents the hesitation some carbs become subject to in a tunnel ram setup, where it has a pause between when the runner gets a vacuum signal and when the baseplate sees it. Once the primary and secondary systems take over from the idle circuit, you are flowing with any carb, but this will help holeshot and launch.
I have seen this setup really successful in drag cars, especially the manual transmission variety where you let off and on as you shift, but have little experience with them in boats.
The downside is an oil-firesque fuel consumption when you are off and on the gas a lot.
I may be off base here, so please correct me if this read on it is incorrect Ty... you are the expert!

[Omega21]

Hey Ty-
That 850 center squirter I got off of eBay arrived. Left a message on your phone with my cell number.
Todd

[Hotcrusader76]

Wes,
Thank you for the kind comments, it means alot to hear them from such a highly respected individual such as yourself. I really strive to keep these high performance carburetors up and above the rest with quality in glamour and show, while still maintaining their maximum horsepower potential as all Texas Performance Carburetors do!
With regards to inline 660 s. transverse 700’s:
The Holley 660 Center Squirter #4224 implements a single 50cc accelerator pump that supplies a single shot to all four venturies via a centrally located squirter. This allows a very reliable fuel delivery to all four corners of the carb, and when mounted inline with another 660 this set-up is a proven winner for performance driven cars as you described. It’s also the best-engineered system for low-compression motors, which might otherwise never create enough signal to utilize the fierce potential of a large dual double pumper system.
Also remember that the 660 carb was designed for WOT applications with no power valves and regularly saw the track. Many people adopted the dual 660’s for Small block Street and Marine applications alike due to it’s non-complicated linkage system, ease of fuel line routing, and all-out-dependable performance. I have used this set-up on my BBC for along time and have “spanked” many BB set-ups running similar tunnel ram configurations with 750 double pumpers. Jewels and I are actually reinstalling the Billet 660’s back onto our 468BBC Crusader before it’s sale just because they work all season long, no linkage issues with binding and stress on the throttle-shafts and I only need two 06AN fuel lines to supply the system. (More pics to follow once the motors back in the boat)
If you venture into the tunnel ram arena with dual double pumpers, most applications suffice fine with 30cc pumps (330 cam position #2) on both primary and secondary sides with blocked pwr valves. Now configured like the 660 but with larger venturies and two squirters vice one per carb you can reliably run this application without over-richening on acceleration. A dual 30cc carb vice a single 50cc model on a tunnel ram application out pumps the 660 by about 14.5cc’s more fuel shot (over an average 10 pumps), which exceeds the single 53.5cc shot of a center squirter and is best suited for BB (.600 lift) applications reliably up to 750HP on acceleration.
Either way both set-ups consume fuel, so if you’re thinking about this type of combo for fuel economy you might be in the wrong sport of hobby. Buy and race and import then... :D
~Ty
[ February 04, 2003, 01:03 PM: Message edited by: Hotcrusader76 ]