Help With Atmospheric Bovs

[Msutton]

Hey guys i just purchases a skyline r33 gtst, new to the whole turbo thing. am i better to stick with the stock air box and customisw the intake so it gets direct cold air flow,or replace it although ive heard the others can cause ur car to intake hot air and loose performance?

also wat should psi should i be running the car at? i have it running at 20% on low so im guessing this means 20% of the standard psi which is 8 this would mean 20% of 8 = 1.6 so 1.6 + 8 = 9.6 psi is this correct? and if so wat % should i be running it at on lo and hi? low being for everyday use

thanks guys

[Jdfnq]

Hey guys i just purchases a skyline r33 gtst, new to the whole turbo thing. am i better to stick with the stock air box and customisw the intake so it gets direct cold air flow,or replace it although ive heard the others can cause ur car to intake hot air and loose performance?

also wat should psi should i be running the car at? i have it running at 20% on low so im guessing this means 20% of the standard psi which is 8 this would mean 20% of 8 = 1.6 so 1.6 + 8 = 9.6 psi is this correct? and if so wat % should i be running it at on lo and hi? low being for everyday use

thanks guys

Stick with standard airbox...

Max boost for a standard turbo is about 14psi before it goes BANG

Safe boost is more like 11-12psi.

Heaps of topics on these subjects...

I suggest reading the FORCED INDUCTION section of the forum

Happy trails

[mosquitocoils]

Hey mate, like Joe suggested have a good read through the forced induction section, and try searching for some specific phrases like 'safe boost'.

I'm assuming you're using an electronic boost controller, so you can set a low boost level, and a high boost level? I'd have low boost set to 5-7 and high boost about 10. I run 9.5-10 constant on mine, just to be safe. But like everyone will say, about 11-12 is considered the highest you'd want to push a stock turbo frequently.

[Msutton]

ok no worries guys thanks, it doesn't have a stock air box in it atm its currently got a after market one but from what Ive heard they just suck in hot air and cause Ur cooler to work harder is this true and if so should i just replace it with a stock air box and ebay the after market one?

also my boost controler shows % does this mean its % of the standard psi which is 8, is that correct? therefore if i set it to 30%, it would be 8 + (30 % of 8 = 2.4) so total psi would be 10.4, is this correct? and sorry guys just new to the whole turbo scene.

any tips on to keep it maintained or mods to start with would also be greatly appreciated

thanks a lot mark

[mad082]

if it is an aftermarket airbox then it will be fine and will be an improvement over stock. if it is a pod, then still use it. i am of the opinion that a pod sucking some hot air but flowing enough air is better than an airbox that is only sucking cold air but is choking the engine up top.

also, before you do anything else. go and buy a boost gauge. and i mean right now. depending on how the controller works, being at 20$ will probably mean that the solenoid is working at 20%, not that you are getting 20% more boost. so depending on the power of the solenoid, 20% could be 0.5 psi (meaning you are running about 7.5psi) or it could be 5psi (meaning you are running 12psi). so go and buy a boost controller before you do anything else, and take it easy on the way there. even if you only buy a cheap $50 drift one it will be better than nothing.