Jump to content
SAU Community

Recommended Posts

i got a set of freshly recon'd 550cc purple tops off ebay and just wondering if any one knows much about them. i have heard if your fuel is rich in ethanol it can cause damage. i only every put 98 octane in my car so will this be a problem??? anyone with a set? im hoping that it is just an over exageration

Link to comment
https://www.sau.com.au/forums/topic/329578-nismo-550cc-purple-tops-question/
Share on other sites

uploading a pic now to silence all, these will be going on my rb25, he says their high impedance but he tells me had them/or was gonna put them on his gtr but didnt. would these fit no problems with a aftermarket fuel rail

post-74158-1279547152_thumb.jpg

Edited by chrislesnar

What motor is this going on? NEO or R33 RB25?

And no ethanol does not harm injectors. (forgot to answer this earlier) The mythology is, that ethanol corrodes old fuel lines. Realistically this is a non event for most skyline users anyway, really only a variable if you run an E85 setup, and even then there arent THAT many rubber hoses to replace in the car anyway.

What colour is std, I thought purple was std???

Mines a '98 R33 and I've got yellow tops= nismo 555's and they flow like that as well - they were on the car already from Japan, but I'm sure that purple tops were the std colour in '98 rb25's??

Purple is stocko for RB25, but it looks to be a different purple again lol.

If I were you, the risk is too big, why muck around with all that. Snap up a second hand set of nismo 555s or 740s for 700 bucks, plug and play.

They are top feed injectors in the pics. They are definitely not stock RB25DET side feed injectors regardless of the colour.

x2

On another note, I had Denso 550cc injectors in my GTR when I first bought it and I'm pretty sure they were purple!

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

    • Yeh I think i'll message an old contact i had for ages that manages his own tyre shop now.. n tell him what i want n work with him before ordering..  Got this 17x9 +30 Driftteks on 245/45/17 PSR Drag Radials on the rear.. They fit well - for your reference in future - Rear guards  have been lipped in & minimal to non flaring of the rear Gaurds.    
    • If only it were that easy! I also needed to remove seats, shocks, brake calipers, send my car through a fence, and use measuring and ended up guessing because I didn't remove seats, shocks and brake calipers. It can be hard sometimes Can be a little more complex than 'just measure' if you want to truly measure the entire wheel through all of it's suspension travel. But if you aren't going for every last mm then yeah, you can check the space you currently have and guesstimate.
    • If you own a car, and it has wheels on it, and you know the offset of those wheels, and you have a measuring device, you have everything you need to work out if other wheels will fit.
    • Will this fit? but they are staggered set - RAYS 57DR SEMI GLOSS BLACK 18x8.5 +37 | 18x9.5 +38 5-114.3 STAGGERED SET   or If no go could just get a set 4's wheels of 18x8.5 +37 5-114.3 - would i run 8.5's 235s up front n 245's at the back if I do?   Thanks.        
    • Put a clamp on your return line. I have a feeling it's sucking air, and introducing bubbles to your fuel. With a lot of fuel, less problematic. I'd honestly be redoing all the lines in the tank and clamps on everything.   Also, you've given two different answers to the same question: Asked if being followed by the police you could get down to use the whole tank, you said yes you could, so long as you keep off boost. However, you then followed this up that free revving, it would also cause the issues. I'm doubting free revving is enough to make any noticeable boost on what is likely a decent sized turbo.   So now I have to ask, can you actually drive it lightly and use all the fuel, or does it break up even free revving? Also, have you put a fuel pressure gauge on it? Can you hear the pump change noise at all when you're having this issue?
×
×
  • Create New...