Jump to content
SAU Community

How many RWKW will Nismo 555cc injectors make safely?  

47 members have voted

You do not have permission to vote in this poll, or see the poll results. Please sign in or register to vote in this poll.

Recommended Posts

Hi Fellas,

I currently have 312 rwkw and the injector duty cycle is at 81% (using nismo 555 cc injectors), without a FPR

My aim is to get my power up to 360-370 rwkw. Using basic extrapolation ((0.81 x 365))/312)=94.7%), I get an injector duty cycle of around 94.7%.

However, if I install a Fuel Pressure Regulator (FPR), I will be able to increase the pressure, thus, making the injectors flow a bit more.

Anyway, I need you opinion on what power you think the injector's would max out using a FPR with my 555cc injectors.

My tuner is very confident they will make 360-370rwkw safely, as he has done it before.

Please place your vote!

Cheers

You dont need to bump something 45mins after you last posted in it dude...

Just be patient.

Your vote would be greatly appreciated!

Weren't you runing like 365 watts in your R31? What size injectors were you using?

I already have voted.

I used 740's - i knew the power i wanted, so i purchased injectors to suit it. :happy:

Im not a fan of FPR's if you've gotta buy injectors, you might as well buy the correct ones as i see it and use one of the better Nissan OEM parts.

For what you need, it'll be fine however to add in a FPR, bump a few PSI and make what you need.

without bumping fuel pressure your 555cc's would probably max out at around 330-340rwk

So generally speaking, how much more power does a FPR provide?

Also, are there any disadvantages to having a fuel pressure rgulator over bigger injectors? (Does it increase the chance of damage to the fuel pump? Or increase the risk of split hoses? Can a FPR damage injectors?)

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

    • Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
    • Ah coolant overflow, previous discussions make way more sense now lol. 
    • ok. Yea, then I would need to remove the turbo and weld an adapter on to it instead, if I fuc* this one up.  
×
×
  • Create New...