the stock compression ratio is very low on forced induction engines. the compression ratio is increased by the forced induction, so you need a low ratio prior to full boost. for instance, there was a guy with a 68 GTO with a supercharger at the track last year putting out somethnig liek 2200hp...he was running liek 30psi, and 18 to 1 compression...he ran 128 octane in the engine, but with the supercharger removed, the engine only had like 8 to 1 compression.

if you were to bolt a turbo and manifold up to your stock motor, it woudnt last very long because the compression ratio after adding boost would be so high, and the stock internals are not made to deal with anything about the stock compression.

a friend of mine, who is building 420a turbo has abotu 12 thousand into it right now. that includes:
a new block, 20 over, sleeved. forged crower pitson rods, forged JE pistons, forged crankshaft-stock stroke, fully ported and polished head, neon RT transmission, quaife LSD, custom half shafts, MSD fully programmable ignition and a laptop to program it, turbo manifold, custom front mount intercooler, super 20g turbocharger, thermal 3 inch exhaust....im sure there are things im missing.

ron, you have to understand that making a natrually aspirated into a forced induction motor requires ALOT of work, and money. It cannot be done cheaply, or it will just break.

 

trust me... i know this!! i know im lookin at a LOT of money and time to build my engine up!!! that's why i was looking for a mod list and time line so that i know what to do first and whatever... and half of the things you mentioned on your friends 420a i don't know what they are... i wish i knw more about cars! do you have an AIM S/n?? so i coul talk to you more about this in more detail

 

i will PM you my screen name.

 

just remember that after about 300hp you will have to replace the tranny in the 420a a new motor built for a turbo is anywhere from 1300-2000. depeneding on what u get.

 

wait wait, you said i would have to replace the trani but you gave me the price for a motor.... a little confused i know that i will have to replace the trani, but why did you give me the price for a motor?? i would have liked to replace the motor but unless i take EVERYTHING out of the front and move everything around, there isn't a motor that will fit in my engine compartment... and i don't feel like selling my car to get a gst or gsx.

 

the 420a, if properly built, is perfectly capable of putting out 300 whp. my buddy bought a new block, and it cost him a grand...

get435, howell's forged performance bottom end kit alone for the 2.0 is 1200 dollars...and that is just pistons/rods/etc...no crank...

 

ok what i ment is up to 300 hp the tranny will be ok. but you motor will need rebuilt. now rather than buying a whole long or short block from a dealer you might want to consider going to a macinest and having them bid you on makeing the 420a you have now an awesome turbo motor. going to a macinest or building it yourself is way cheeper than buying a long or short block from a dealer for those motors. i just rebuilt my motor i am going NA trying to make the fastest NA eclipse at my location but it was only 1400 for my macinest to make the motor turbo ready and that is with a 3 year warentee. i only spent 1200 on my motor and is is .25 over high comp pistons hardend rods .10 on the crank fully ballanced and comp valves guides so on and ported and polished. so it is up to you what u want to do.

 

i don't think i know what you mean??? i know i have to get some parts before i can install my turbo but are you saying to get all of them and then have a mechanic install them all at once and it will only cost me about 1200??? please explain get435

 

ok what i am saying is before you slap a turbo kit on the car get the motor built. take it to a macinest to get the work done or do it your self if u buy the parts yoursefl you will save money. but it will cost anywhere from 1200-2000 for the motor to be done right.

 

and what are you including when you say, do the motor right?? what i mean is what parts are you talking about?