Fuelling to max stock twins?

Started by SiH, October 26, 2008, 10:59:27 AM

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Warthog

Quote from: SiH;549013Ahhh, the man himself :D
Never going single on mine :no:

When you were pushing the envelope, other than what i have listed, what were you running? Anything more than the above fuelling mods and some porting?

The list is long mate, I will post up when I can HTH.
I\'M ALWAYS IN THE SH*T IT\'S JUST THE DEPTH THAT MAY VARY.

Project Evil seven.:evillaugh

RE:WORX---13b RE engine, Motec M400 Pro ECU, Os Giken 5 speed internals-Gearbox, HKS T51R KAI turbo, With 575 @ Fly, 487.9 @ Wheels @ 1.3bar 420 ftlbs, on PUMP FUEL Sheel V-Power. BUILT & TUNED BY RE:WORX. More work planned..:InLove

REW, Stock Twins, RE:WORX-- British Record, 389.2 @ Wheels -- 03/09/2005.

chrisJDM

i went for 1600 secondaries on mine and they worked fine, i got a kit from rx7store that had everythin in that i needed.  I have used them several times and have always been good but a few others have mentioned bad experiences getting replies to emails etc.

Complete Fuel System apart from fuel pump
http://www.rx7store.net/product_p/extremefuelfd.htm

Also i went for the Nippondenso Fuel Pump, cheap and stock fitment and makes no noise, i ran it for 2 years without a problem
http://www.rx7store.net/product_p/nippondenso%20pump.htm

I ran this fuel system and pump for 2 years with no issues at all and was comfortably running 1.0bar on stock twins

DR SCHNITZEL

So on twins more than .8 you need
ported wategate
fpr
fuel pump
injectors
bigger fuel lines (optional) then up to 1.15 on standard tubs.
 
Is that right?

SiH

Quote from: DR SCHNITZEL;550410So on twins more than .8 you need
ported wategate
fpr
fuel pump
injectors
bigger fuel lines (optional) then up to 1.15 on standard tubs.
 
Is that right?

No.
I run 0.9 on just induction and exhaust, mapped by Pip.
(with appropriate cooling mods)
1.15 is, as far as I\'m aware, really pushing the stock twins past their efficiency limit. It\'s my understanding that at that level they aren\'t producing much more power and are starting to blow some very hot air, as opposed to a useful charge.

Cheers for the input Guys, I\'m almost certainly going for the KGParts rail kit with 1600\'s and either an 044 or Denso pump :)
However, one thing I\'m unsure of is the injectors - does anyone know which ones they are that come with the kit? RX7store are being very cagey and I\'m not commiting without knowing.

I\'ve also got Coolingmist WI on there as well, but that\'s a safeguard, I\'m not mapping for it.

Timmy

The kit comes with ford injectors they\'re alright altho low impendence with the resistors shouldn\'t be a problem. However the rail might be they\'re not exactly well made despite what people have said in the past, saying that i think kgpart have revised it again recently.

chrisJDM

Quote from: DR SCHNITZEL;550410So on twins more than .8 you need
ported wategate
fpr
fuel pump
injectors
bigger fuel lines (optional) then up to 1.15 on standard tubs.
 
Is that right?

no you dont need ported wastegate unless you have a ported engine and start to see boost creep otherwise dont worry about that.  I was running standard injectors and put the boost up to 0.9bar and the injectors were hitting 94% injector duty which is not too good so changed the secondaries to 1600cc, i was then running at 1.1bar on the twins and injector duty was only around 70%.