need help with kade and turbo knowledge!

[always-broke]

please no flaming i already know im too stupid to figure this out.

ok so i have an 89 hatch dropped in a 93 motor and converted the harness.
now the ka i dropped in i bought from a man who had recently rebuilt it and i plan to go turbo eventually. the weird part is he decided to put single cam pistons in it and had the entire rotating assembly balanced. does anybody have any clue wat this is going to affect when i go to turbo the car?? and please give me some non bank breaking suggestions on way to get this car up to ten psi. its a daily with a cage and i run scca in it. never really plan on pushin more than ten, bu thave no idea if i need new internals or if its gonna handle it and no clue where to get a tune for it. any help at all with this headache is greatly appreciated.

[always-broke]

also if anyone is near the joplin region and ever wants to ease my headache come on down

[moso]

using sohc pistions in a dohc motor will raise the compression. the sohc piston is taller from the wrist pin to the piston head as well as the sohc piston is flat top where the dohc piston is dished top. this will raise the compression to arround 11:1. Higher compression in a boosted engine is generally avoided seeing as boosting increases cyl pressures. not that it cant be done. higher compression boosted motors will put considerable strain on the headgasked and head studs (better have a mls and some arp studs) as well as stressing the connecting rods (hope you got those eagles). If the motor was built correctly for boost all of these issues should have been addressed. On a side note you will need a tune just to run that motor N/A.

[TwoFortyCoupe]

If what Moso said is true (that the compression will be around 11:1) than adding boost to that motor will not work. It will run, just not well.

[compactfean]

^ that is absolutely not true. Have you ever been in a high boost high compression motored car, tuned? It is freaking bad a**.

[always-broke]

it runs clean right now with a stock ecu. i asked the guy what he was trying to do with the sohc parts and he said he was building a n/a drift machine. which was actually pretty funny since the car had abs from hell. anyways as far as i know its all oem replacement nothing forged. as yes to the high compression turbo man my dad has a 13.9:1 compression sb 350 in his camaro pushin 18 lbs. he just has to dump in to bottles of 104 octane boost to the 91 pump gas he already puts in it or it knocks like hell. not trying to put anyones opinions above any others just looking for some ways to make this car a little quicker.

he said another reason he put sohc internals in it was because their stronger that dohc ones. idk if thats true or not just wat he said.

[TwoFortyCoupe]

Compactfean, I actually haven't, I always see like people lowering the compression when they do turbo builds. It just never occured to me that people run high compression boost.

[compactfean]

It all depends on the fuel you use and the tune. for example. Turbo diesel motors are turbod and often are like 16:1 compression. Full dragster motors are like 14:1 with blowers and meth. Lowering the compression will allow you to run higher boost with a lower octane fuel without knock.