1987 f150 302 is it just stupid to add this about how much hp gain is it with a 6psi bost im getting round 200 225 and would it bring it up to like 240 or 250hp or in my dreams

Thanks Tom

 

How many miles or is it a rebuilt block? Which supercharger are you considering? It most certainly can be done but it is a decent amount of work and money.

 

Generally speaking with a healthy engine and proper supporting mods (fuel pump, injectors, ecu tuning, etc) you can expect about 10 crank hp for every 1lb of boost.

 

so by what your saying if i have 10,000 psi ill have 100,000 hp.

 

right now it has 120k on it all cyl have same comp i will prob rebuild it if im going to spend 4k on a supercharger so 6psi will yeild 60hp gain is what your saying and its efi i know it can be done anything can with a torch grinder and a welder! the one i saw was a gravity supercharger it looks like a turbo but runs off the drive system

 

Research and make sure it will work with a speed density system, usually turbos like carbs or mass air.

 

its for it but is it worth 4k or should i just rebuild the engine with higher comp and raceing parts for the same price

 

you want fairly low compression for a supercharger

 

exactly cause what the super charger does is force more air and fuel causing higher comp which is a prob to most people cause they put it on not knowing this and destroy there engine what im saying is build it with one . . . or build it without one but raise the compression aka flat top pistons with reliefs and smaller comb chambers

 

Pretty much but good luck finding an engine that can withstand that much psi.

Even a Teksid block couldn't take that....