Turboing with a Carb?
 

Hey guys, its my first time on here so plz dont be to harsh if I sound like a n00B.
Ive read through your forum and found some great info but I didnt see anything about turboing with a carb. I would be interseted in puttin a turbo on my 1980 datsun pickup. It has a carb not fuel injection. I read somewhere that you have to get different jets...? Or possibly built a air tight box to suround the carb so the pressure is isolated... I have no idea what thats suppost to mean or do...

Any Ideas on what would need to be changed before adding bost.

Thanks boys.

Re: Turboing with a Carb?
 

Do a blow-through set up. Pick up a copy of Maximum Boost by Corky Bell for more detailed info. Most people here have EFI so the set up is totally different but still the same principle applies. Post pics of your project

Re: Turboing with a Carb?
 

Hey, sounds good.
Thanks for the tip, yah Ive herd talk of a "blow through set up" but Im not exactly sure what that intails, never the less Im sure it will be explained in that book you speak of. I will pick that up.

Ive spend all summer swaping engine in my truck after blowing it up the last day of grade 11 in the highschool parking lot. I still have broke engine in my shop and I plan on rebuilding it for a turbo set up if I can mannage to peice one other. I swaped in a replacment L20b engine and It seems to run strong even tho I havnt got it tuned up yet.

Heres a link to the video of my burnout that fried my first engine (you may have to copy and paste it into the address bar)
http://nm-videos.com/videos/Cadillac...LTRON_0001.wmv

Re: Turboing with a Carb?
 

What's up with the camera angle? I got a stiff neck watcing the vid but otherwise, sick!!!

Re: Turboing with a Carb?
 

Yah tell that to my buddy, I burn off 500$ worth of tires and blow my engine that takes me 3 months and thousands of dollars to replace and he cant even get a good video of it... Thanks man!

I have some better videos of my 1969 Firebird we built last winter, We raced it this summer, my best time was 11.96@111mph in Edmonton Alberta. Whoooohoooooo! Ill try and get videos of that if anyones intersted.

Re: Turboing with a Carb?
 

Do a search for the sbc turboed blow through setup.
Its easy to do an the carbs easy to modify also.If you got questions let me know i am sure i can answer them.

Re: Turboing with a Carb?
 

Welcome to HMT dude
Now , wheres the porn >:D

Re: Turboing with a Carb?
 

I emailed a datsun performance shop in Californa with regards to replacing my carubrated system with a fuel injected one.
"We offer a complete dual sidedraft throttle body injection kit with various engine managment options that ranges from $2700-$3900 depeending on options."
ummm yah so Im gonig to do some more research on how to make a carb work lol.
I fugre I could make a full turbo system and replace my intake and carburator (if needed) and finish off most the other things of my truck for 3900$ lol so F - U Fuel injection.

Just wanted to keep you guys posted.

PS With regards to making a carb work under boost you either have to rejet and epoxy something in the carb. Or build an air tight box to put the carb in... Ill do more research lol

Re: Turboing with a Carb?
 

:) well is about a 2hour modification to a holley 650 dp an if you install a proform center body then theres no epoxy needed.The only thing your epoxing is the choke rod hole.
So get a intake manifold that has a carb on it an get a holley flange 2 in adapter an have it welded to the manifold.Then bolt on the carb an go.
I bet i can get one mocked up easily an i know a guy that welds aluminum an can get the job done.

Re: Turboing with a Carb?
 

http://www.cb7tuner.com/vbb/showthre...7&page=2&pp=15
Try looking here.
I'm doing the same thing to a carb'ed Honda.

Re: Turboing with a Carb?
 

Thats right on guys...
With regards to that Holly carb on my truck, We have all the jets and stuff for our Holly carb on out race car so that would be nice. From what I found a Holly 650DP is a 650cfm 4 barrel carb with a double pumper on it. Im pretty sure that would be wayyyy to much fuel for my engine (2L). Im sure you could re jet it and fix that a little but I would honestly prefer a 2 barrel carb. I know were talking about some pretty radical turbo stuff here but in all honestly fuel economy is still a very big concern with this vehical, turbo or not. If fuel wasnt so expencive I would be driving my 500ci cadillac lol.

Never the less is is possible to do the similar mods to a 350 CFM Two Barrel Carburetor? (just wonderin) or any other of their smaller street series carbs?

Turbo_Camaro: what have you done to moddify your webber carb. I know webber makes carbs for my turck so if their not to hard to make work then it would be easyer for me to go that way.

Will it work if I build an air tight box for the carb and leave the carb as is? I keep hearing about air tight boxes but I dont know if you still have to mod the carb? Anyone know?

Thanks guys, this is some neet stuff.
ps. Tubro_Camero your honda looks really neet, keep us up to date on how your projects coming ;)

Re: Turboing with a Carb?
 

The only thing I did was sealling all the axles.
And rejetted it. I'm still thinking of milling off the choke horn.
I still have to test if it all works.
There are some guys in Germany that used this carb on their Ford's in a similar way that i'm making it.