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*Jeff240sx* · 01-03-2003, 01:02 PM

Yea, pretty much what Dennis said.
Stock fuel system: 4psi (4.35 psi is ok on the weakest spring Tial has).
FMU: 7 is ok, and 9 has been done with success, but I don't suggest it. Also, at 6psi or more, you should really look into replacing your fuel pump. Adding pressure to the rail works against the stock pump, with sucks to begin with.
The ringlands are extremely thin, and with such high stock compression (9.5:1) detonation can happen very fast. Lower your compression ratio if you go with forged pistons (8.5:1 is more turbo friendly).
A t3 turbo will work, and is great for low boost, but when you approach 10psi, it starts to choke up. T3/4b is good for the mid-teens of boost, and t3/4e or straight t4 is what you want for insane boost.
I have a t3/4e setup for fast-spool and low psi for now. When I get a decent fuel system, I have larger housings in my closet.
RevHard manifold (it spits out bolts... that's my only problem with it.)
I really don't know what you wanna ask? Are you trying to setup a turbo kit? How much boost do you wanna run off what size turbo? Please be more specific, and more help will come.
BTW: My car blew up from detonation. Stay away from it. My car went 80 feet (measured) at 17psi before it died.
-Jeff
P.S.: Go to my website in my signature. It has my install, and a fairly comprehensive parts list and pricing somewhere.

01-03-2003, 01:02 PM	#10
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0)	Yea, pretty much what Dennis said. Stock fuel system: 4psi (4.35 psi is ok on the weakest spring Tial has). FMU: 7 is ok, and 9 has been done with success, but I don't suggest it. Also, at 6psi or more, you should really look into replacing your fuel pump. Adding pressure to the rail works against the stock pump, with sucks to begin with. The ringlands are extremely thin, and with such high stock compression (9.5:1) detonation can happen very fast. Lower your compression ratio if you go with forged pistons (8.5:1 is more turbo friendly). A t3 turbo will work, and is great for low boost, but when you approach 10psi, it starts to choke up. T3/4b is good for the mid-teens of boost, and t3/4e or straight t4 is what you want for insane boost. I have a t3/4e setup for fast-spool and low psi for now. When I get a decent fuel system, I have larger housings in my closet. RevHard manifold (it spits out bolts... that's my only problem with it.) I really don't know what you wanna ask? Are you trying to setup a turbo kit? How much boost do you wanna run off what size turbo? Please be more specific, and more help will come. BTW: My car blew up from detonation. Stay away from it. My car went 80 feet (measured) at 17psi before it died. -Jeff P.S.: Go to my website in my signature. It has my install, and a fairly comprehensive parts list and pricing somewhere. __________________ Whatup?