Where did you read that?

 

Adding larger injectors (especially the size of the Z32 370cc's) isn't reccomended simply because that's a LOT of extra fuel to have to mess with getting rid of.

 

I think you need to perhaps read this thread again...and again like I said earlier.... The point is not being taken.

The facts.

370cc injectors are far too large for a 3.0L normally aspirated (N/A)
The reason we state adding more fuel is because w/ an AFC, you can take out fuel, thus adding timing indirectly ... But since the injectors are larger or the FP higher, you will not go lean when taking out the said fuel.

Our vote is for a AFPR, since it is cheaper and will accomplish the same task.

 

 

And it is somewhat adjustable...something you cannot do with injectors. Almost adding to the fact that you can adjust according to how much timing you want to be added.

 

You post ***** What's the deal with the modified SR20 units? I hadn't heard of this...

All the reasons in the world for an NA car to go AFPR instead of injectors.

 

NmexMax...I like your simple explanations. You know how to take a 10 page write up and put it into lamens terms. Thanks again...

 

Well I sent out my FPR to get converted. If all goes well ill contact him about us, so anyone can get one for $40 shipped OR IIRC $25 if you send the guy yours. The thing is he needs cores, and I sent him 5 SR ones, 2 of which should fit the VQ. I think im going to have both of them made in to adjustables. He sells them pretty quick too so we'll see.

 

Interesting. I'll wait and see the results first before I pick one up. Although I don't have anything to tune with yet anyway so it doesn't matter...

 

I have the VI(with 5th gen fuel rail and injectors) , Budget ypipe and a VAFC-II. If I get the AFPR, and tune it with the VAFC-II, I *should* yield more power?

 

thats the word on the street.

What amount of additional pressure is everyone/anyone at? i saw .5bar but was wondering if theres anything else anyone is at

 

I'm still waiting to see what kind of advance you get for a given amount of tuned-out additional pressure.

 

why is it you guys never listen to SR20DEN?

 

I always have.


A32 DE/33DEK 3.0L = 3.0 Bar, 3.5L = 3.5 Bar.


SR20DEN bumped the imortant threads a few months back... it shouldn't have to be done again...

 

just give him the answer...he can't search anyway...

 

The answer to what?

I gave him stock FP's...

The other question has not been answered in full just yet. (i.e X FP gives Y timing advance, or X injector 335cc/370cc gives Y timing advance)

 

What is an FPR scanner. More details please.

 

When you find out ... let me know.

 

me too......i think NmexMax explained it the best.......with x FP gives Y timing advance or X Injector Size give Y timing advance....but only with a fuel controller to adjsut the fuel......as fas as gains....sr20 saw 8 degrees on the top end...he posted in another thread

 

It's actually post #1 of this particular thread we're in

 

BINGO.......I am getting them all jumbled

 

are any of these what I'm looking for?
http://search.ebay.com/fuel-pressure...ageNameZRC0021

or is there a better brand?

 

he never asked for stock fuel pressures

 

and it was also stated.....+0.5 bar over stock

dont get a no name ebay FPR

 

he said hes seen 0.5+...but hes wondering what everyone else is running

 

what is a good FPR that you guys would get?

 

thanks, im glad somebody read the whole thing. im not trying to mooch all the answers i was just wondering what everyone is trying to get an idea of what can/has been done

 

its okay...nmexmax probably missed it...thats all...afterall, he does help alot of noobs, and it gets tiring after awhile

 

im not really a noob anymore, should look more closely into my posts; 1,235 posts not so noobish, but yeah, i can definitely see how he would over look it, no hard feelings. haha

 

Not many people have ran + PSI on an A33B that I know about.

There's not a known FP to 'shoot' for. It's all trial and error, try this try that, monitor it and see if the pump holds even @ high RPM.


There are a few DEK owners running a tad more but some tend to lose some pressure @ high RPM's...

If you( A33B person) can get some DEK or Z33 injectors for cheap on here or my350z.com... that could be an alternate route as well.

 

haha, sorry if you mis understood...but i meant nmex helping OTHER noobs...not referring to you

 

start at +0.5 bar and get on a dyno and fine tune

 

haha, yeah i know. nevermind lets drop this terrible conversation.

nmex, to use DE-K injectors wouldnt you have to modify the injector harness? if the problem is fuel pressure tapering at higher RPMs, would it be possible to install a second pump, inline as a booster? i know that would be a pain and probly pointless, but possible?

 

Of course u can install an Inline secondary pump....or jsut run a larger in tank pump.....but it might be the AFPR not gettin enough vaccum to sustain the pressure......

 

Anyone know the maximum rated pressure of the stock fuel system components?

 

I don't know if this is what you're asking for, but back when I had a fuel injector test setup, I tested the stock VQ30DE injectors at over 160 psi with no problems. I forget what fuel pump I used to do that with. My stock fuel pump was good for only about 65 psi.

 

I was looking to find out how far the conduits and couplers could be pushed.

Thanks for the numbers, though, especially the one for the fuel pump...

 

THis may not be that helpful to you, but on DEK injectors at WOT and up to 7500 rpms, the stock A32 fuel pump seems to max out at about 46psi on my car.

 

Hmm...makes me wonder if upping the pressure for my DE injectors and tuning out fuel is safe on the stock pump. Or wouldn't it matter since I'm tuning the fuel out?

 

DEK injectors are larger....and 7500 rpm is a tad differnt than 6500 in the 4th gen....i am sure stock 4th gen fuel components can handle 3.5bar no problem for the long term......