Hi, first off awesome project! Deff one of the best looking cars on here.

Now i noticed that your standard fuel rail has the same fuel pressure regulator as mine. (Ive included the picture). It's got what looks like vac 2 ports instead of 1. All the manuals show only 1 port. So my question is: are both these ports vac ports and do they hook up to the same location on UIM or do they take vac from different locations.

I'm wondering if it's a euro thing as no one else seems to know.

Thanks

 

it has to do with emissions! indeed not all FC's have it...
one port is direct vacuum and the other is being regulated by emissions, supposed to aid in hot/cold start. dont know for sure.

you have a couple of options, depending on your application:
if everything is stock, search for the vacuum line in your emission systems used for this 2nd port.

if you have removed the emissions, you dont need the 2nd port and you can't use those rails. next best thing is the J-spec fuel rail, they all have the single port.
im not sure about the US/UK-spec

or you can use S4 rails and put on a aftermarket FPR. (maybe run them parallel whilde you're at it)

or you can do like me, cut off the stock fpr and make an adapter you can weld inthere and then run an aftermarket FPR. but then you would need some more tools and skills

 

Thanks for the info! may have come too late.

Yes i have removed all my emissions and on the advice of a uk based rotary expert I just gave both ports a vacuum.

I've just finished putting it all back together and it won't start, and it is deffinately because no fuel.

Infact there is no fuel entering the engine at all.

 

yeah sorry bout that, i've been kinda busy

have you still got the stock injectors? or new ones? cause if you dont have the right impedance then they wont fire...
does the fuel pump work? connect the 2 leads on the yellow connector near the front right strut tower. then you should definately hear/see something.

 

sorry I'm being rude and hi-jacking your thread.

Yeah the Injectors are stock, just had them cleaned. I did the bridge on that yellow connector and everything was quiet. Well like you say i would expect to here something.
before the work everything worked fine. I'm sure i hooked it all back up electrically. I only removed the injector connectors everything else became redundant with the reomoval of emissions.
I'll just do more playing around tomorrow.

thanks for your help.

 

no problem, we rotary guys need to stick together in fixing problems!
i have got some major issues at the moment, and need some serious help and advice, which i will post as soon as i translate my story to english...

but again: check the pump...
if you dont hear anything with the connector bridged and just the ignition on, nothing else, then your pump is dead!
or you can disconnect the fuel hose and then run the bridge(for a really short time)

 

ok guys, to make a long story short, tuning my car didn't go as hoped!
please read the following carefully...

i'll try to describe the problems the best i can, hoping you will do some serious thinking with me, seeing that myself and the guys who were tuning my car, don't have any clue on what the hell is going on!

the story starts about 1 year ago when i had some hesitation, and went to my rotary specialist to figure out the problem. it turned out to be a malfunctioning MAF. but in the process of finding the problem we had some hoses changed or unplugged to raise boost. then it hit 0,6bar with no problems or strange noises, we changed it all back to factory boost level. i can remember this: it felt a LOT quicker!

when i started to work on the car last september, the engine was still stock, i had just removed the power steering and A/C, and put on the racingbeat sparkplugs. then i took it for a spin and heard a strange noise coming from the engine and went to check it all out. it sounded like a ticking noise when i hit full boost (stock 0,5bar)
started searching, not knowing what it could be and then i found my fucked up turbo and thought that was it...

last friday i went to a company, who races FC's here in Holland, to get the car tuned. we started out removing the factory fuel-cut and adjusting fuel @ stock boost (a lower 0,35-0,4bar due to my ported wastegate), no problems there.
all went well and we could be turning up the boost a little.

then all of a sudden, at just 0,5bar, again the same sound! they told me it was detonating like crazy... sounded like someone banging on the floor with a hammer!

we tried many things to figure out where it was coming from, but no luck.
mixture is fine, timing was at zero.
when we advanced the timing a lot, detonation no longer occurred, and we hit 0,9bar.
but then the timing was probably so advanced, that it did not really produce any more power.

they have tried building an engine with non-turbo rotors once and got about the same results. detonating like crazy on just 0,4-0,5bar
so we compared it to a turboII engine they had, measuring the distance from the plughole to the rotors, they were pretty much the same (a bit hard to measure with the engine in the car) but not that much that it would indicate there would be the wrong rotors in my engine.
that was also almost impossible, due to the fact that i have hit 0,6bar before without any problems.
did a compression test: 6bar on both rotors and all the chambers, which is even a bit on the low side perhaps.

checked the plugs, coils, leads. they all work properly. even put on a stock pair of plugwires instead of the racing beat wires, but with those, the problem was probably even worse!

we decided to stop progress at this point and try to figure out what the problem is before we start spitting out apex seals...! at stock boost there is no problem at all, so i can run it safely for the moment.

so this strange problem was there a long time ago, and all my mods did not affect it and did not make it worse. so it would be safe to say those mods dont have anything to do with it and can be ruled out... but wtf could it be then!

if anyone has any thoughts on this. dont hesitate to let me know!

 

wow that really really sucks man. i am officially stumped.

 

Maybe try going back to the stock plugs?

For some reason my last FC would only run properly with Leading plugs....all 4.

 

any luck/news furb?

 

no news yet dude, i've just been too damn busy lately to get any more serious work done on the car...
but in a few weeks i'll be freeing up some time for it

 

all problems are solved! turned out to be something fairly easy....

i upped the fuel pressure to 4.5bar at full throttle and replaced the plugs with NGK B9EGV. now there is no more detonation!

in a few weeks i will be updating with new pics, specs and dynosheets!

 

after a long time of insecurity and setbacks it has all come together in the end.

in february the engine was ready for tuning, but fun was over when we got detonation when boost raised above 7psi. we mapped it at stock boost for the moment and power was still already about 250hp instead of the stock 200hp







it took me quite some time to get the info to solve the problems, but it payed off in the end! the cure appeared to be fairly easy as i changed to different sparkplugs (B9EGV) and cranked up the fuel pressure to 65psi at full load.

2nd attempt:
still didn't go as planned... thank god i had no more detonation, but we ran into some other troubles. at 15psi the engine stopped producing power after 5k rpm and stopped accelerating. we got stuck on 290hp...



also another problem...
i replaced the OMP-lines by different ones, but it appeared they could not stand the heat as well as i thought they would.
they became soft and got loose on the OMP and due to my fan right in front of it, the entire car got a shower of fine oil-mist.
we decided to stop at that point and replace the lines before we did damage to the engine.


not long after that i got the new lines and ordered a HKS twinpower, because i had the idea that the lack of power was due to the fact that my ignition was not powerfull enough.

attempt number 3:
all went pretty smooth in comparison to the past. also the twinpower did its job, cause there was no more hesitation at high rpm's
now we are pretty much at the max for this setup, cause it is noticable that the stock engine and turbo cannot produce any more power right now.
final dyno figures: 305hp and 420Nm

 

thats a great pic with the flames hope you didnt singe that paint job !!

love the kit, Ive got the same one

 

the original pics no worky.

everyone is telling me your fc is dope furb, yet i cant ever see any pics.

i got slight glimpses at your newest post of your fc on the dyno.

too bad to hear about the detonation. good luck on the future build!

 

yeah i know, the old server is down so all the old pics are gone...
well the detonation luckaly did not kill the engine, so that's all in the past now

and here's a special for you then:

 

nice!

 

, etc.

 

holy freakin crap.

 

absolutely beautiful!

 

Furb, if you don't mind me asking... What mirrors are those? They almost look like vision mirrors.

 

your car should find an fd and have sex with it


the babies would be beautiful

 

Don't you just wish you could drive around without a licence plate in the front over here?

Riz.

 

thnx for the thumbs up guys



they are R-magic mirrors
i thought they were RE-Amemiya at first, but theres a slight difference in between them...
you can sometimes find them on e-bay.

 

yeah it sucks!
but on the other hand, every time i see my car without it, i get a feeling i am missing something.