Blow-thru carbs dont work?

Are you kidding me?

 

Just a little joke between me and Fred.

https://www.ford-trucks.com/user_gal...125311&width=0

 

i know a guy that ran a supercharged blow through setup on a 351w and he kept crushing floats. he now is setting up a twin turbo fi 351. this is in a maverick not a truck but the same principles apply. His carb setup ran pretty good but he always had little problems tuning it. If you dont use the right parts then your asking for problems.

 

you either have to run the nitrophyl floats, or fill the brass ones. Tuning a blow through carb properly requires a good bit of knowledge of the inner workings in the metering block of a holley.

 

http://www.jegs.com/i/Barry%20Grant/...010BT/10002/-1

how bout that

 

Guys be carefull with with Demon. I run a supposed Demon BT. Right out of the box it will NOT run and tech support from BG is non-existent. After months of tuning with an LM1 data logger I have it finally running well. I have just about worn the bowl screws out changing jets,resizing the high speed air bleeds,resizing the Idle feed resrictors,opening up the PVCR (power valve channel restrictors) and had to make a BRPV. (boost referenced power valve)Unless you know alot about carburetors or intend to learn alot I recomend C&S or CSU More expensive but worth it. IMHO

 

C&S??? or CSU??? what are they?

and how do you boost reference power valves?

or what if you got a real big carb and had the primaries feed it til boost hits and then the secondaries juice the boost... so to speak heh

 

Carburetor Solutions Unlimited
C&S Racing Carburetors - C&S Specialties

Both of these companies specialize in blow thru carbs, know they're stuff and offer excellent technical support. You will NOT get that with BG (You have been warned)
As far as I know I am the only one on the site running a blow thru and believe me when I say there is steep learning curve. But, that said you can make HUGE HP with one. 2000+

 

cool.... i just wanted to feed my straight 6 a couple pounds so it wasnt such a pig...

what about retarding the spark?? someone told me to stick with the vac advance distributor.... i think the only other option is a electronic boost controller from from like msd or something

 

I run an MSD Boost Timing Master. It allows you to take up to 3 degrees timing out per pound of boost.

 

That sounds like a handy setup. No more ping I bet?

 

I am a new user just joined today and was curious if you would be willing to share this website or any information you have with it I'm debating a turbo or roots supercharger but just always been a fan of turbo and would prefer to go that route just not a lot of info that I can find on it.

 

Welcome to FTE. This is an old thread. Tiremine last posted in 2010, although was seen lurking in November '16.

Feel free to start your own thread here, or in the proper engine forum. You should explain what vehicle, engine, trans etc, and budget you are working with. You will get better responses.

There is an excellent remote turbo 300 six thread, where the truck is an actual runner. That may or may not apply to you.

 

A little off topic, but still boost related, what would be the best way to chill the charge temp for a street truck running 16-18 pounds on pump gas? One kit I found offered a water injection system to cool the charge, but then I would be constantly refilling a resevoir when I drive. Would a fat intercooler/aftercooler work, or would they not be able to keep up?

 

It's been more than 30 years ago, but when I worked for Roush in the 80's we built many blow through carbureted turbos. We soon switched to blow through fuel injection which worked even better.