Jump to content
SAU Community

Recommended Posts

i have noticed a few cars on here and in other forums running stock motors (internals) but have bolt on mods - and ppl are running NOS -

for example if your running 300kw rb25det plus a shot of NOS how much more damage/ AND RISK IS THIS?

i see these guys are consistantly running drags, with simlar set ups.

is this worth the money / risk.

my car will see a drag stripp once or twice a year - and hopefully powercruise so it will not be getting thumpped that often-

just after opinions and experience

Link to comment
https://www.sau.com.au/forums/topic/421852-nos-on-stock-motor/
Share on other sites

  • 2 weeks later...
  • 1 month later...

i have noticed a few cars on here and in other forums running stock motors (internals) but have bolt on mods - and ppl are running NOS -

for example if your running 300kw rb25det plus a shot of NOS how much more damage/ AND RISK IS THIS?

Nitrous is a way of boosting horsepower and torque.

No inherant 'risk' that is different to other forms of tuning . The fnf franchise is not an education on this topic.

Things to consider;

The horsepower and Torque limits of the engine and drivetrain. A simplistic way to understand this. If you have 200kw and the internals limit somwhere is 300kw thenyou have 100kw to play with. Nitrous and or turbo bolt ons etc. leave you 100kw to play with.

The fuel system needs to be able to deliver the fuel.

The engine timing needs to be adjusted / mapped with a reduction in advance.

Copper plugs with appropriate gaps and heat range.

i see these guys are consistantly running drags, with simlar set ups.

is this worth the money / risk.

It's the cheapest way to add significant horsepower to a stocker for 1/4mile use. I would suggest that 10 seconds isn't out of the question with the car setup and motor and turbo stock.

The risk is the same for breakage for a similar powered turbo upgrade, however in a basic control (no two stage) big shot there is going to be bulk torque over a turbo size for the same power and that torque will put more hurt on the drive train and the rods in the motor.

my car will see a drag stripp once or twice a year - and hopefully powercruise so it will not be getting thumpped that often-

It's cheap to do and you get good value for events like that. I'd reccomend it for sure.

just after opinions and experience

Appart from using some bigger single kits on V8's. I have experience putting a kit on a standard turbo and motor R33 gtst. 2rismo bought the bits off me then upgraded it further (he ran 11's on a stock turbo'd motor with a small shot).

My view is that you could setup a bigger hit and get a stock motor & turbo gtst into 10's with the right strategy. No special fuel.

It's pretty easy and you won't regret it. Just ensure you do it in a way that is legal (have the kit easy to remove and install) and do it properly with a plan in mind , considering the limits and supporting modifications you would do for any power upgrade.

  • 1 month later...
  • 1 year later...
  • 4 months later...
  • 3 weeks later...
  • 2 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I swear at my GKTech ones every time I have to take them apart and replace a spherical. But I wouldn't swap them for anything else. They absolutely slay every other option, at least in terms of how they actually work. You sure you don't want to live with bearings? I mean, they don't have "ball bearings". They are rod ends and sphericals throughout. Tough as nuts, even though I have found more than one way to wear them out.
    • From when I was looking at getting the 86 engineered for the turbo, the joint said to put in a few euro 5 or 6 cats, then tune the car on a nice clean E85 tune When I was looking at a turbo for the MX5, it was basically the same thing, a couple of cats and a nice clean tune Although, it will depend on the year of the Jeep IRT emmisions standards required, and what mods are done, especially if it has a newer engine installed that requires a higher Euro
    • Yeah - but it's not actually that easy. There are limits for HC, CO, NOx and particulates. Particulates shouldn't be a concern in any petrol engine unless trying to comply to the very latest Euro standard. But getting a tune right so that all the others stay within limits AT THE SAME TIME is not a trivial exercise. You couldn't possibly get it right by just guessing at the tuner's dyno, unless he had a 4 gas analyser up the pipe, which is not often the case these days. It used to be. Every decent shop that did "tune ups" (as opposed to tuning) would have a 4 gas analsyer. Perhaps there's still quite a few of them around these days. But most "tuners" are only watching O2 and power readings.
    • Slight segway but the most expensive part of the whole thing which I would have thought would only be required for an engine size/type swap, not a VIV test, is emissions testing.  That's when you get into the big bucks.  I can't remember the exact price now but I got quotes for the GT-R based on swapping to RB30 (not that anyone bothers doing it legally anymore...) and it was around $4500 just for that alone.  The guy that does them manipulates the tune on the vehicle to make sure it passes.  The cheaper option is to book into Kangan Batman Tafe (I think that's where it was) and hire their tester.  Allegedly you're not allowed in there with the car though so not in a position to tweak anything to make sure the vehicle passes.  I'm sure in this day and age of ultra tuneable ECU's you could get the tuner to program a special efficiency (clean) tune that emits the lowest amount of particulates possible that would pass the test.  It might only make 50kW's but as long as it passed who cares!
    • I'm sure he has left signs, or, he is looking down, laughing That's my cunning plan for when I leave, lots of half finished projects, with no rhyme or reason of where I was actually up to, just to keep everyone on their toes
×
×
  • Create New...