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Posted by greengoblin2011, Jul 19, 2011
420A Bolt-on Tech - Intake, exhaust, ignition, fuel system, cooling, etc - specific to 2G N/T DSMs. New Members must limit their 420A tech posts to this forum.
2GNT.com Forums - Viewing message - Challenge: plot your setup on the compressor map
If you want to educate yourself, buy this book - Amazon.com: Turbo: Real-World High-Performance Turbocharger Systems (S-A Design) (9781932494297): Jay K. Miller: Books - and begin reading about basic theory and how power is made. Build your system around the power goal, do not just slap a big ass turbo on like so many folks here.
And scratch that AEM fuel rail off your list. Worthless. Stock fuel rail will support realistic street power levels.
I would like to add, however, that if you are not planing an engine rubuild the stock pistons and rods will not support any PSI above 8-10. So what HP can you expect to see at 8psi? Well it depends. Mostly on the fuel and air temp believe it or not, of course there are other factors that go into it as well. Psi is NOT a way to measure power. First you want to consider what you want to do with your car. Do you want a faster DD? Do you want to race autocross (my personal fav)? Or are you looking for a Drag car? Then after you have decided that you need to set a HP goal and make calculations from there. Here is a link where I showed how to calculate for your HP goal all my info can be confirmed on Garrett's website under the turbo tech sections.
http://www.dsmtuners.com/forums/420...whats-needed-350hp-10-5-cr.html#post152503742 -- Post #20
Sorry re-read and noticed you are planing to build the motor so a lot of your hp/psi restrictions are going to hinge on tunning and turbo setup. Are you planing on running MS or Portfueler? You won't be able to fine tune those bigger injectors without.
First, try and make an effort to use proper spelling and grammer (friendly reminder).
Next, as mentioned above, PSI is not a measure of power of any kind. So your statement holds no water.
15 psi on a T25 is not 15 psi on a Garrett 3076R.
First to "pull 15psi" you will need to know what these things are.
Second if you want to run 15psi thats great but there are many different HP numbers you can pull at that preasure just to reiterate.
Third yes... yes you do have a lot to learn. This will do a good job getting you somewhat caught up. 2GNT.com - Power_Stages be sure to read ALL of the power stages.
When did you start giving "friendly" reminders?
Ok, so I read all the other site pages you guys posted and have studied through other posts on this forum and one question did arise. I read one post on here, ( cant recall exactly where), about someone saying if you turbo your non turbo, you must do the jeep throttle body upgrade. I looked over my parts list and I am getting a different throttle body which should be fine shouldnt it? Its a larger oopening than stock(60mm). I also read all the power stages and the only thing I didnt have on my list was connecting rods, which I will be hunting down a set. I still am going to invest in that book, just kind of updating you guys. Thanks. Just a side note, I know I still have alot to learn on turbo, and plan on educating, as far as my wrench skills, I have rebuilt a motor before. A chevy 402, which I know is totally different from my 4 banger, plus it was all motor, which is again different from my plan. Anyway, back to more research. Thanks guys.