rebuilding 95 gst

[mightymousestd]

I'm looking to purchase an auto 95 gst that needs a new head. Pending my actually buying this car and taking the head off I'm thinking about just rebuilding the entire thing. I was wondering if I should bore it out a little or just keep the stock bore and upgrade the pistons and rings, I'd like to push 20psi safely at the track and just 15 or so daily driving. The t25 that's on it is in good condition, but i know they don't spool over 16 hardly. Let me know of any faqs or tech guides that might be out there for what I want. I tried searching but all I could come up with for boosting 20 psi safely was watch out for fuel cut. I will also want to build the head up some with bigger cams....all thoughts are welcome

ps when and if I build it I was planning on using the 1g parts that help out the 2g engine

 

[knochgoon24]

You'll need a bigger turbo for 20psi. The T25 will be a hairdryer at that point, just blowing hot air.

 

[Grimis]

^^ just like the above, at 15/16psi the T25 becomes a hair dryer..

read here.
Tech Guide: 2G Drag Setup - DSMtuners
good info on upgrade paths.

 

[mightymousestd]

so if I put the 1g head, intake and bov on it with upgraded pistons and rods, what is the better turbo to put on it that will hold 20psi safely? and what rate fuel pump do I need to support the high boost?

 

[knochgoon24]

A very popular option is the Evo3 16g. People also like to run at least a 190lph fuel pump, or even a 225 or 255 with a AFPR.

 

[mightymousestd]

thank's that was mainly the heart of my question...I hear a lot about the eagle pistons and rings, would they support that much boost with ease. and what's the market on a stronger crank or will the stock one hold up ... I know that's crank walk is something I'd have to deal with being a 7 bolt, but is there any real way to keep it from happening other than hoping??

 

[fatherbubble]

Yea its called a 6-Bolt Swap.