i have never owned an SR. but i can find the answer.

http://www.drift-connection.com/sr20det-specs.php

• Displacement: 1998cc (2.0 liter)
• Cam Type: DOHC 16 valve, chain driven cam sprockets
• Bore & Stroke 86mm x 86mm
• Compression: 8.5:1
• Horsepower: 205ps @ 6000rpm
• Torque: 203 ft/lbs @ 4000rpm
• Stock Boost: 7 psi
• Throttle Body Bore: 60mm
• Injector Size: 370cc/min
• Turbo Specs:
• Compressor: T-25, 60 trim 56mm BCI-1 compressor.
• Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
• Center Section: Journal bearings
• Performance:
  The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

 

yep i ran my redtop at 15psi with np i only had fmic catback and an intake

 

Oh, so I should be good if I run 13psi with stock set-up with no prob? I also have a FMIC and 3" full exhaust. I plan to upgrade in a few months but I would like to boost more than 7 psi.

Good resource Bigg. Thanks.

 

oh if u have a 3" exhaust and a fmic then your boosting around 10psi
it only boost 7psi if u got stock everything but upgrading the IC and Exhaust accually makes u boost more

b4 i put my boost controller in i had intake, exhaust and fmic everything else stock i was boosting 9.9psi

 

Okay, that makes me feel better. I'm going to get a boost controller in a while so once I get that, i'll probably go to 13 psi. Thanks everyone, I really appreciate the help.

 

like i said it wont be a problem i raced mine at the track at 15psi with np

 

i even got pics im the black s14 towards the bottom
http://www.club240.com/forums/showthread.php?t=39698

 

It's not just about the boost, mate. But sure, the stock SR can handle 1.2 bar or even more. Just make sure you're not running lean. Detonation will kill any engine, forged pistons or not. Forged internals might last a little longer than stock if you get detonation, but it WILL break.

Some claim that a stock SR can handle 350 - 400 flywheel hp, with just upratet headgasket and perhaps cams. Better cams = more hp at lower boost.

 

true but i didnt have that problem i was running really rich lol

also with injectors, turbo, cams, and stock head gasket with a tune can handle 400hp on stock internals

 

Most definetly. I have an A/F gauge to keep an eye on the mix and of course I have a walboro FP and Z32 fuel filter. I'm trying to save up money to upgrade the fuel and engine management so everything is totally straight.

 

narrow band or wideband?

 

I believe it's a narrow band. I haven't installed it yet. Is there a preference?

 

narrow band is as good as it looks bro. not very accurate at all for precise tuning. wideband is what you need. if you looking for something good and affordable NGK AGX is good bro, im about to pick it up.

 

If I use a wideband a/f meter, don't I have to use wideband 02 sensors?

 

yeaup all of what you need comes with the wideband setup

of course your most popular on the market is aem ugeo, innovative etc

but there are many other options. you don't wanna go to cheap because you want the most accurate reading.