awesome carb idea

has anyone else seen this item? a buddy of mine showed me this a couple of days ago... so i just bought one to try, if i'm impressed i'll be buying several more

http://www.thompsonperformance.com/

watch the video, they say "seeing is believing" well so is hearing, sounds much smoother and less hesitation

Please tell me you're impressed with it? =)

I'd love to see Dulcich and Freiburger test this thing on engine masters. I'm a bit annoyed that Thompson claims years of testing yet provides absolutely no data. And no, I do not consider those silly dyno sheets on their website real test data.
It does seem intuitive that a finer mist of fuel might flow better, burn better, etc. Since cracking the throttle blades open causes a portion of the fuel to drop out of suspension this little device could really improve that issue, however, I'm actually betting it covers up a common problem I see on customer tuned cars: too big a squirter nozzle to begin with. The resulting bog on acceleration is almost always very clearly visible on O2/AFR data graphs.
But like I said... I'd like to see clear chassis dyno data.

J

Edited by gaertner_jan - 31-December-2016 at 1:28AM

Whoever made the presentation likes google images...

the invention that keeps coming back. 1st, the garden hose flow from the nozzle is not what gets to the combustion chamber, you can see that as soon as the fuel shot hits the main booster it breaks up significantly. then it's exposed to heat & turbulence in the intake manifold plenum

I want to know what you think and I might consider one of these for the 74 ranchero. I have spent $50 on dumber things and if this works and you really notice a difference in performance that would be great. 

californiajohnny wrote: has anyone else seen this item? a buddy of mine showed me this a couple of days ago... so i just bought one to try, if i'm impressed i'll be buying several more http://www.thompsonperformance.com/ watch the video, they say "seeing is believing" well so is hearing, sounds much smoother and less hesitation

what you should do is dyno your car before and after you put this on, and see exactly how much this affects it. im curious as to how it affects the fuel economy as well.
please keep us all posted, im anxious to find out...

californiajohnny wrote: well i may be a while before i find out, i bought one to try on the primary side... i'm planning on swapping out the 450 holley for a 600 doublepumper i have, but the base plate is on back order i've had it for several years almost new carb with a fresh rebuild kit in it that i did for a buddy, he broke a tab installing it, so i bought it from him cheap!!! been laying around for many years so i figured i'd use it for my future "last car" when i get it (69 GTO judge) but i also thought about a 67 fastback mustang for a "last car" then i figured hell why not get both! but as of late i'm thinking just a 67 fastback.  damn you ford guys...you've corrupted me!!

A better atomization tool closer to the squirters... sounds like a good deal to me!

Soooooo, has anyone tried it yet?

J

Nuggets wrote: I keep seeing these advertised on facebook....the price puts me off trying one, I'm just running a far more aggressive cam on my carb, bigger squirter sizes (37-42) and twin 50cc pumps. Definitely didn't stumble when I broke the engine.....

Edited by aquartlow - 07-February-2017 at 9:25AM

haven't tried it yet, been waiting on that 600DP base plate for that carb i want to try it on aftermarket base plate was on back order for the last 2 months so i called summit a couple of days ago and asked if they had the factory holley one in stock since it was only $8 more they said yes and since i've been waiting so long they would just send it to me and not pay the difference just got it today! should have been here yesterday but fedex pussed out and wouldn't deliver yesterday because of the snowy roads...roads were bare and dry BTW!! so i just got it but i may not swap carbs just yet since i need to drive it down and get it realigned, just thinking don't want to be messing around on the side of the road with an untried carb! probably just paranoid but don't like taking nice cars out in crappy weather and have possible issues on top of that

Big Bird wrote: I could swear I've seen those squirter diverters before, like 20-30 years ago.

Same here. I recall seeing products like this hyped for the performance crowd, then after people figure out it was all hype the products just faded away. The ones I recall were some sort of magnetized wire (touted as improving MPG too), and another was a screen.

I'd be interested in how this does not interfere with the bernoulli affect, a diverter plate like this seems like it would impede  a high performance carbs overall CFM.

They are designed to have negative pressure above the squirter so it meters correctly. The Autolite 4100 4bbl come stock with them for a reason. My advise, get a 4100 and call it good. You will search for and chase the throttle response this carb will give all day. Are they expensive, yes but the last one I bought last month I paid $75 on Ebay. With rebuild kit, bushings, filter, new needles, base plate and base gaskets, I will have about $200 all in. The one I have on my 74 Gran Torino 351w (393 stroker) 600 cfm gets about 12-13 mpg in town and 16-19 highway depending on how I drive. How you drive is 50% of your mpg. On one froggy day I got 7mpg. Sue me, I was having fun! 😃

Edited by Richard W. - 21-February-2017 at 7:41PM

The squirters output is just determined by how hard you mash the pedal and force the diaphragm up with the cam....you can get some pull past but Holley make a nozzle to stop that