97 you'll need to upgrade your internals. You don't have to but to get the best performance from a turbo you want to update your rods and pistons to be able to handle the boost. If you don't you'll be running at like 6 or 7 psi, when logically you should want to run higher. I think the SRT-4 is at like 9 or 10 psi stock :?: but I'm not sure. Check with Speed-Factor. He knows his shish, if your serious he'll help you out I'm sure.

 

you can put out more hosepower than an SRT-4 without upgrading stock internals. I've seen 250whp with the stock setup using the 290cc injectors off of a sonata or santa fe 2.4l I4. But it takes very good tuning. What you are trying to avoid is detonation. What causes detonation is higher compression, high intake air temp, low octane gas, advanced timing. To avoid it run high octane gas, a good intercooler, cant really do anything about compression except change the pistons, and use colder plugs to retard the timing a little.

Also high EGTs (exhaust gas temp) is bad because that means something is running too lean and your engine is running too hot in general. Proper tuning and timing will reduce EGT's to their proper levels. But you have to remember you are using an engine and ECU not designed to be boosted. Its going to fight it and try to correct itself. Its not going to understand why all that air is coming through the MAFS. My hyundai MAS/ECU ran into that problem when I did the elantra swap.

 

So either way, to get rid of the high compression you should change at least pistons. I have been reading quite a bit about the injectors. Is that where an SAFC II would be of help?? I really need to pick your brain dweet cause I'm a definitely a NEWB when it comes to these setups. Sounds like you know your shiznit.

 

the only RIGHT way to change compression is change the pistons. there are workaround to it like having a thicker/thinner headgasket. But the S-AFC does control larger injectors, jsut as any AFC, its the sole job of it. Go ahead and ask away if you have a question. Im still a newb at this but I've learned alot just trying to get the elantra running. And now that its running im learning the tricks to tuning a boosted car

 

so all i would really need to take my car from basicly stock to to turboed. with out it be super hard on the car is to get the kit and pistons? are you sure there isnt anything else?

 

Well like Dweet said it really depends on the tuning of a turbo. That is where turbos get a bad name for blowing engines IMO. People didn't tune them to make them work correctly or effieciently because that was too expensive and mostly unavailable years ago.

 

who can tune it. i mean is it really hard. or could someone who knows a lot bout motors do it. i got a friend who built his own 500 hp talon by himself. he could probably do it.....
but i mean i dont have to replace the bbtb or intake manifold do i? it would help im sure but it isnt any harder on ur car not to is it?

 

tuning comes into play by messing with fuel delivery and timing. its easy to build a 500hp talon. reason being is the ECU that came factory is it was programmed to detect boost. this is where our cars have trouble because it came factory as an NA engine. So you need something that can adjust fuel and compensate for this handicap like an AFC. Also you'd need an FMU or RRFPR to help with fuel delivery and of course larger injectors and a bigger fuel pump. Engines only go BOOM and melt pistons when they go lean. Also for timing issues we are pretty much screwed as well unless you go stand alone. there is a way to hack the timing with an e manage but its pretty complicated.

 

er, this is sounding really really hard. i might have to find a shop that will do it. what type of shop will put a turbo in for me. im also looking at a couple of kits. the speedfactor kit which we know a lot bout but i also am considering the real engineering kit
http://www.real-engineering.com/prod_turbo.php
heres a pic

http://axisturbo.com/photos/450hpkit.jpg[/list][/list]