DIY Boost

[JT]

Hi all,

RE: Nissan 1995 Skyline GTS -t Series 1.5

Can you install a boost controller yourself? Like a hi - low switch? Or can I install a bleed valve? What is the difference?

What else do I have to modify to make this run properly and not dangerously, apart from a boost guage. Someone wrote in the forum that if you boost the car over 9 psi you have to change the computer, Is this correct?

I was looking to boost to around 10 -11 psi. What recommendations do you all have?

I am willing to give it a go myself.

Johnathon

[akeenan]

please try a search.... ive read these questions before.

the 9psi question is not correct.

[Craved]

well, you can go well over 9psi in the gtst with stock ECU is no worries! im running 11psi no worries, actually might go up a bit soon! installing the boost controllers is pretty easy, if your refering to making one yourself, then it can work but not guranteed to work as good!

do a search for boost controllers! should bring up what you need

[predator]

Craved: what year is your car? Depends on your factory ECU.. 95 model and newer stock ECU's seem to be able to adjust better for higher boost without leaning out or requiring aftermarket fuel adjustment.

Its also not a good idea to go much above 10psi with the stock cooler, as you'll probably get detonation. There are many variables and there is no fixed figure, but I wouldn't be going above 9 or 10psi with just the standard ECU and/or intercooler without risk of badnesss.

You can use something like a S-AFC to increase power further, but really once you get to that stage you will need to put it on a dyno and tuned properly.

[Craved]

yeah mines a '94, and i do have the support for the higher boost (check sig.), except adjustable ECU!

[ix9]

predator666,

I have a '95 and it's pretty much useless (ie, like all the ECUs) it still dumps in enough fuel to throw flames

an AFC will fix this tho'