When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I did that upgrade…..costs about 8 grand…that was with a 500hp stroker engine already built for the blower. 3 g for the blower….4 g for the injection and computer stuff…about a grand for the misc other stuff including the meth injection add-on.
All the computer stuff and ignition box plus distributer, $3000
Injector hat and injectors, $1700
Blower, $2500 didn't use the carb plate.
Twin motor pump and good billet filters along with a high pressure regulator, $700
And POOF!!! You have an injected blown engine….those prices are not including all the braided lines, fittings,electrical connectors and special plyers to make the connectors, throttle linkage, time and counless trips to everywhere to make it all fit together.
All the computer stuff and ignition box plus distributer, $3000
Injector hat and injectors, $1700
Blower, $2500 didn't use the carb plate.
Twin motor pump and good billet filters along with a high pressure regulator, $700
And POOF!!! You have an injected blown engine….those prices are not including all the braided lines, fittings,electrical connectors and special plyers to make the connectors, throttle linkage, time and counless trips to everywhere to make it all fit together.
Two of the reasons for going EFI were to put the injectors in the hat to keep the visibility restrictions down to a min and second so that I can boost enough to get up into the 800s hp range and still be able to stop at any gas station for fuel. The Holley water/meth injection takes care of cooling down the intake charge and boost octane points to make that all work.
I remember the early 90s Chevy/gmc trucks that whipple made a small blower that worked very well using the small throttle body. I always thought the positioning of the TBs doesn't matter except for throttle linkage and fuel lines if you were to sit the TBs inline on top of a small 144-142 blower. After that it will be test tune with injector size, pressure and timing curve. Custom proms are possible but when it's all said and done an aftermarket FI might end up being cheaper. Most likely performing better.
A side note, there was a guy I found on the inter web that turbo charged his CFI . It didn't cost much but it was many hours fab bing the air cleaner. Sealing it up and turbo plumbing. He did it with no ECM mods. Just fuel pressure and injector size.
I did that upgrade…..costs about 8 grand…that was with a 500hp stroker engine already built for the blower. 3 g for the blower….4 g for the injection and computer stuff…about a grand for the misc other stuff including the meth injection add-on.
Originally I wanted to build a twin turbo engine. Fitting everything under the hood and the turbos just in front of the firewall on each side…the deciding factor was that the fenders do not come off and would be a huge pain in the butt to try to fab everything inside while leaving over the car lol. If I had a tilt front end at the beginning that would have been my route. Maybe next time )
I should know, I see it done on TV all the time. 
