I would recommend the 2 grand fuel system because with the CJM or AAM, you still need to buy injectors which will bring you to 1500-1600 bucks. so for 400-500 bucks more, you get the dual FPRs, dual pumps, a nearly complete drop in fuel assembly...basically the best fuel system money can buy. No inline booster pumps, rock solid fuel pressure, and relatively speaking, unlimited HP potential.

And Synth, I called them this morning. Looks like they bumped me again to work on an Evo..... as long as it is done when my plane touches down on tuesday.

 

Like Synth said, GRD is already a HKS pro dealer. They got their status about a week or two before I saw your post about your shop getting pro dealer status. When I was at the shop last monday, Tuan said HKS is using their shop to host tuning classes/seminar for new HKS pro dealers and that you will be coming out.

 

So how does a completed project feel?? where there any diffculties?? My APS TT project will start soon, can you give me any advice.

Great ###'s

 

2 fuel pressure regulators only benefit you when you use tiny little OEM bosch ones that could never handle the flow one at a time.

anyhow, its far from the best fuel system money can buy. its just currently the highest flowing, for a couple more weeks anyhow.

no current aftermarket fuel system for the Z uses booster pumps, or has fluctuating fuel pressure... so no credit is really due.

not to mention, why would you want to run that system which is going to have starvation issues at low tank levels when you dont even need 2 pumps????

if synth really wanted twin fuel pumps, when the time comes, he could get a superior engineered twin pump system from us for much less then retail cost anyway - cause he runs our local Z site that I need to responsor and he used to refer business to us when we were stil building cars but i advised him that his goals are not even near needing twin pumps - what a rediculous idea when your over 100rwhp from the capacity of your existing intank pump.

 

as for engine management - have Tuan set you up in the FCON... its the way to go for sure.

 

charles, are you developing something to eliminate fuel starvation like a small aux tank with a big aux pump like the AAM stage2 kit?

I like the AAM one except it won't work with 99% of the exhausts out there

 

we built a fully functional intank surge tank... so its basically like the stock unit only it has increased tank displacement and two pumps. we also used a really kickass method for pulling fuel into the surge tank... something that most people probably have never seen. its in testing, and it will be out soon enough.

 

do we have low tank fuel starvation issues? because sometimes i go below 1/4 tank and if there is.. i will stop doing that

 

there is according to mike cronin and his crew at the performance nissan race team - i think it's when the tank is on E

 

Actually no, not if your using the stock fuel pump assembly and you have not made any modifications to it that would effect its functionality.

 

i am running your stage 1 system

 

Everything went super smooth. I had a very small oil leak issue on my block compliments of the machine shop, but GRD took care of it on their OWN expense and time. Car feels great, and actually drives stock when I'm not boosting... but the power is their if I need it. As far as advice goes, just make sure you choose an excellent tuner who has experience with APS and listen to what they have to say, and do not go overboard if you are not changing your internals.

 

assuming proper installation, you are in good shape. while i tested the system full throttle while the gas light was on, taking it to such extremes is not recommended. I typically dont drive the car full throttle once I am at indicated 1/8 tank. but of course, there is nothign wrong with being extra cautious, so use whatever you are comfortable with assuming you understand the risk. but in thousands adn thousands of miles of testing, i have never experienced a fuel pressure surge... and not a single customer as reported an ancident.

 

no offense phunk, but at this point, APS is walking the walk and you are talking the talk. I am sure you can put out a decent fuel system, but I'll put my faith in APS.

As far as being over 100 whp away from the capicity of the single pump, from the research I have done, that is not accurate.


FWIW, I just might happen to know of a car that you may have worked on, that ran out of fuel with a certain fuel system at a MUCH lower HP than the manufacturer might have claimed it could support.

 

well isnt that a surprise!

 

It very well might not be a suprise, but as much as I might promote APS, phunk seems to try to bad mouth it - at least in terms of the fuel system. And on top of that, like I said in my last post, I might have inquired about his system and was told what you read above

 

no worries, your misinformed. jeff's car has the stage 1 kit, and it maxed out right where its advertised. or maybe your talking about when it was still on the APS fuel system and couldnt even make 480rwhp on a dynojet? i had to put in a nismo regulator and cram super fuel pressure in there just for that crummy system to make 520rwhp on a dynojet on a cold run... which ended up with inconsistency requireing the car to be retuned only 2 weeks after tuning.

there is a member on this forum that made just over 670rwhp out of the S2 kit, and thats where a single walbro it maxes out with a properly setup system.

you worry about farming, ill worry about fuel systems. dont accuse me of "talking the talk" while your friends are walking the walk. thats the difference between tossed together junk and a well engineered product. i dont need to be the first one out there, as long as were the best. that has always been the priority, and it always will be. i refuse to sell a product that isnt flawless. i could sell you a twin pump system like the one you have for Lot less then you paid, and thats the fact. but there a lot of room for improvement, and currently in existence is the answer. when we are done testing it, we will "walk the walk" and you will still own the 2nd best.

edit: ive got an idea... your car is in chicago right now.. lets see whos talking the talk when you come here to get your car. how about a video to see if your car with 2 pumps can run with my car on 1? should be interesting, since your "calculations" say i should have maxed out my pump by now, eh?

 

I would do the F-con as a second stage, try to get the cams with it as well........ and later on a fule system and that should get u boosting. for sure a lot of stuff needed on ur stage three and i'm sure u r aware of but any way if it helps i can count it for u coz i'm just going through the process.. let me know if u wana know them in deatails.
Good luck man and well done....

 

Phunk, the one thing I am sure of is that I won't have any fuel system related issues running the setup I am. I couldn't say that if I ran your system. Running your fuel system, I would be in jeopardy of being like Jeff; bringing my car home with dissapointing numbers because I ran out of fuel.

I know a little bit of the history between you and APS, and for the most part, I understand your responses to threads/posts like this.

 

Well put, good point, I overlooked the cost of injectors. IMO-this system hasnt been "proven" yet. Only guy I know with this system on the boards is Mrtomcat-while his issue may be related to his install/his specific car, because of one of his fuel pumps failing Id like to know why it failed and how APS/GTM is going to fix it.