I will not be installing the fuel rails no more guys it's more difficult than what I originally thought(

 

Why difficult?

 

Because of are fuel system the way it's designed and are regulator being built inside the fuel pump. Besides I've heard great things about the oem rail

 

Yah changing the rail is pretty poinless unless you're planning on 450+ WHP

 

Which is really hard doing that N/A lol. Il be lucky of I get 300whp

 

^Hate to say I told you so (about the fuel rails) lol. Nice headers tho

 

I know right lol well there for sale know haha

 

^Why did you decide to sell?

 

Well I think I might keep the rails, but I said the rails are for sale not the maxima haha

 

Ooh, I thought you were going to sell the headers, lol. Deff sell the rails, you don't need them.

 

 

The regulator is in the fuel pump, the fuel damper is in the rail. And a port and polish might get you 5 hp

 

I'm trying something different. I wanted to open up the runners a bit for more flow. So I ceramic coated the outside of the LIM. I removed all the casting flaws on the inside of the runners with a die grinder and flap wheels. I then submerged the LIM in a solution of anodize/chrome remover. It dissolves aluminum very slowly, but didn't touch the ceramic coating. I left it in the bath for about a half hour. Looked like it was sitting in a bucket of 7-up. Then I very carefully taped up the outside of the LIM and then sand blasted the inside of the runners so that they got that stock look. Ie not smooth polished aluminum but that gritty look. LOL I figure I opened up the runners by about .010 - .020 " diameter.

 

Dam it looks awsome bro. I installed the 350z injectors and it was a total fail lol

 

Nice work ray, that's taking it to the next level bro! Very smart move not making it too smooth as well

 

Why what happened...

Yeah that looks really Good....

 

Thanks guys, should flow well with my custom BBMAF

 

It turned on but it was running super crappy so I put the oem ones back on

 

lol ran badly with 350z injectors? You sure you had all the o-rings on and no leaks?
My old DW 440cc's started up perfectly every time and the car drove well for being un tuned with them. That sounds strange about the z injectors.

 

Mine runs like a dream w/ 440's also (AFR's on target), as it did with Z33's. Any smell of gas or anything like that? Where did you get the Z injectors from? You sure you buttoned down everything else down nicely, (IM/vac lines/intake, etc)?

 

From eBay I put the scanner and two are bad seller sent out replacements asap

 

What did the scanner say?

 

Multiple misfire. I took them off and thru the oem ones and prob fixed

 

My 350z injectors are running Great, No Problems at all...

To the Op hope they send you some good ones...

 

I got 370cc at 3 bar injectors in the mail today. So just over 400 at 3.5 bar

 

Nice what are those out of

 

I have 'heard' CA18DET used 370cc top feed...but have seen RB20/RB26 Nissan injectors in 370cc size on eBay too.

 

Mine are from the VR56VHRDETT

 

 

I'm not sure what car they came from. All I know is that they are dark green.

 

LIES!

 

I just took a closer look at the injectors, and the guy rubbed out the numbers on them! But he did send the test results

 

Who was the seller?

 

I just re read this thread and realized you bought ebay injectors!
Why in the world would you cheap out on something as important as fuel injectors? Ebay motors is decent for exhausts/headers but I would never buy a sensor or anything that can be potentially rolling the dice on. Just my.02

 

Actually that is a trick that a local former Formula One engine builder/mechanic uses that same technique when building High Performance Turbo engines. He sand blast the runners to create a bit of turbulence, and you get too choose from (2) port styles (street or race).

 

I wish id have know that when I did mine, id have done the same!

 

I remember reading somewhere a long time ago that you don't want the runners to look smooth as glass.

 

Exactly, there has to be a boundry layer of disturbed air especially on a wet intake system so the fuel didn't puddle on the surface but atomized instead....I would guess in a dry intake there's a boundry air layer that acts a wedge or bearing like oil does to decrease the air friction, which in turn increases air velocity resulting in more torque....

 

I'm no physicist, but it always related to me, A golf ball. If its 100% smooth it won't go as fast or far, the dimples and rough surface make it faster, etc.

There its obviously in depth reasoning and testing behind this

 

just had got mines done, as well as a ssim