Jump to content
SAU Community

Will 800Cc Inj On Rb26 Be Big Enough For E85

Mark-32

By Mark-32,
in Engines & Forced Induction

 Share

Recommended Posts

  • Replies 74
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

The Dan Grand Master

The Dan

Posted
Posted

I'm now seeing 620 rwhp on E85 with CDI ignition allowing/accepting much more fuel. This is despite my modererate 2860-5 low mount turbo setup. My HKS 1000 CC injectors are at full duty cycle at max torque.

In hindsight, I would have gone to ID2000 (2000cc) injectors as the HKS units weren't "plug and play" in any case.

I'll take the opportunity again to express how impressed I am with the billet.net.au CDI kit (M&W CDI + bracket + harness etc). The spark strength allows bullsh*t amounts of E85 fueling midrange and just wakes up the turbo response. Forget your Splitfire/Twinpower combo.

We usually go LS2 Truck coils on anything that needs more spark. They have 120mj output as opposed to LS1 coils with 60mj ouput

CDI is good though, it does have its limitations in some applications and can cause extreme noise in street cars if not properly wired or shielded

O2 Autosports Enthusiast

O2 Autosports

Posted
Posted

I'm now seeing 620 rwhp on E85 with CDI ignition allowing/accepting much more fuel. This is despite my modererate 2860-5 low mount turbo setup. My HKS 1000 CC injectors are at full duty cycle at max torque.

In hindsight, I would have gone to ID2000 (2000cc) injectors as the HKS units weren't "plug and play" in any case.

I'll take the opportunity again to express how impressed I am with the billet.net.au CDI kit (M&W CDI + bracket + harness etc). The spark strength allows bullsh*t amounts of E85 fueling midrange and just wakes up the turbo response. Forget your Splitfire/Twinpower combo.

how much is the m&w setup worth?

I maxed my 900cc injectors@65psi fuel pressure out at 420kw/560hp. should have just put id 2000's in in the first place.

rob82 Mentor

rob82

Posted
Posted

You trolling me or are you just clueless?

Calculated fuel flow based on the EXACT ms open time of the injector at peak power. The injectors are being told to deliver that exact amount of fuel. So where to get one? windows has a calculator or you can buy one from any newsagent

Well if you've already calculated the fuel flow then surely you must know the duty!

PS - assuming base pressure of 3Bar I'm guessing your close to 100% duty.

GTScotT Grand Master

GTScotT

Posted
Posted

Well if you've already calculated the fuel flow then surely you must know the duty!

Im sure its simply a case of he remembers the flow rate more than he does the duty. Big deal...

The Dan Grand Master

The Dan

Posted
Posted

Im sure its simply a case of he remembers the flow rate more than he does the duty. Big deal...

Exactly right.....and if he read my post again he would see what I wrote in brackets instead of beng as quick as possible to jump on my post

Beer Baron Grand Master

Beer Baron

Posted
Posted

I'm now seeing 620 rwhp on E85 with CDI ignition allowing/accepting much more fuel. This is despite my modererate 2860-5 low mount turbo setup. My HKS 1000 CC injectors are at full duty cycle at max torque.

In hindsight, I would have gone to ID2000 (2000cc) injectors as the HKS units weren't "plug and play" in any case.

I'll take the opportunity again to express how impressed I am with the billet.net.au CDI kit (M&W CDI + bracket + harness etc). The spark strength allows bullsh*t amounts of E85 fueling midrange and just wakes up the turbo response. Forget your Splitfire/Twinpower combo.

hey gav, very interested to hear about this M+W CDI kit. what coils are you using with it? rough ballpark on cost? and also what ecu are you using?

thanks mate.

R

GTS-t VSPEC Grand Master

GTS-t VSPEC

Posted
Posted

Kit Consists of the following:

1. M&W Pro-16B or Pro-Drag 6 CDI Ignition Amplifier

2. 6 x CDI Pencil Coils

3. Complete Shielded & Terminated wiring harness using military spec wiring

4. Coil Adaptor Kit

5. 6 x Denso Iridium Spark Plugs

From what I remember speaking to Gav about it a couple weeks ago, cost is around $2.5k, which almost made me faint. Getting my car tuned with E85 soon, will see how far the 850cc injectors get me, hoping for 500rwhp.

GTS-t VSPEC Grand Master

GTS-t VSPEC

Posted
Posted

Guess you'd hope it would be better than a HKS DLi... Given its almost 3x the price!

Given that Xspeed are the HKS Distributor, and even they were impressed with the results, I'd say it is better. Worth the price? I'm not so sure.

This is a kit after all, and is primariliy made from off the shelf M&W and AEM parts, just with a custom billet mounting plate and some custom wiring. You could probably make something up yourself of alot cheaper. Between the amp and the CDI coils there are $1500US worth of parts.

SimonR32 Grand Master

SimonR32

Posted
Posted

I have done a search but cant find a definate answer....Engine is rb26dett.

If using twin 044's, with twin entry rail etc, will 800cc injectors be ok if i just bump up the rail pressure, and If so to what power level?

My 800s are pretty much brand new sards so If I could keep them instead of having to buy new ones that would obviously be the go.

Any help is much appreciated. Cheers

370-380rwkw would be my guess, which is confirmed with T04GTR's results and GTRgav's and pretty much every other result I have seen :)

A fair whack more than 300rwkw :thumbsup:

The Dan Grand Master

The Dan

Posted
Posted

370-380rwkw would be my guess, which is confirmed with T04GTR's results and GTRgav's and pretty much every other result I have seen :)

A fair whack more than 300rwkw :thumbsup:

Are you referring to the same T04GTR and Gav that posted in this thread? Because I'm pretty sure they said they have 1000cc injectors :thumbsup:

Beer Baron Grand Master

Beer Baron

Posted
Posted

ok, well it's not too bad. the coil pack mount is very nice and for a good CDI system and coils it's not out of this world expensive. I mean if you had to buy a set of new splitfires and a HKS DLI that's over $1000 just for a slightly enhanced factory system.

GTS-t VSPEC Grand Master

GTS-t VSPEC

Posted
Posted

ok, well it's not too bad. the coil pack mount is very nice and for a good CDI system and coils it's not out of this world expensive. I mean if you had to buy a set of new splitfires and a HKS DLI that's over $1000 just for a slightly enhanced factory system.

And from what Gav has told me they've seen a hugh improvement of mid-range, as they've been able to increase the spark plug gap. If I see a similar issue with spark breakdown when I tune on the E85 then I won't hesitate, and will go straight for these :thumbsup:

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • PranK
      Diy - How To Repair R33 Air Mix/blend Actuator

      By PranK · Posted

      I have copied the images in the original post from photobucket to the SAU servers to make sure they stay available.
    • JV7
      Diy - How To Repair R33 Air Mix/blend Actuator

      By JV7 · Posted

      Mate you saved be from dying in the Perth summer. AC wasn't changing direction and just going into diagnostics mode fixed it. You're a legend and I would shout you a beer if I could!
    • Dose Pipe Sutututu
      I need more than help to finish my R33

      By Dose Pipe Sutututu · Posted

      Unfortunately effort gone to waste, you will have substantial issues with how the manifold and wastegate have been integrated. You would be so much better off with a modified stock manifold like this: https://hypergearturbos.com/product/rb25detexgatedmanifold/   OR literally just getting a off the shelf Sinco or 6Boost manifold as myself and others have mentioned.  
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Noice. Mostly.
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      Yuck. But it's kinda the same principle, moving timing around to make car run bad but sound good.... I went for a more spirited tuning drive to iron out a few things. Car no longer stalls, and it loved to dip RPM low when you clutch in. After tuning this (and the 4-5 tables that HPTuners/LS1 OEM ECU wants for idle air correction) it's now behaving somewhat normal. All expected because there's a new TB, new Intake manifold and that new TB which is 102mm vs 78... has an entirely different IAC passage which is smaller because ????? Unfortunately at this point I went to make further fine tuning changes to avoid it flaring up, you know... _tuning_ the HPTuners dongle died. Well to be more accurate - The USB cable died in a fashion that anyone who has ever charged a phone will recognize. After the app demanding I resync it 50 or so times (which all 'succeeded' but all failed) the device does not want to sync and I've logged a ticket with support to see if it's fixable. US Support said it was a 'storage issue' but after removing the SD card inside it and formatting it/fixing it the issue does persist. Unfortunately usually the fix is "Turn in your old dongle and pay $700 for the upgraded one" it's cheaper because I get some free licence credits I unfortunately don't need. However I'm 10 minutes down the road from HP Tuners AUS/VCM so at least I won't need to post it, and logged a new ticket for support over here. Definitely drives different. My SOTP dyno believes it's probably making 310-320kw instead of the 280 before.  It scrambles for traction a little now whereas it previously different. It drives like a bigger cam car up top even though the cam is smaller, likely due to the cam not being advanced 6 degrees. The timing is deliberately low and the fuel is very rich so who knows if this will improve on the dyno. It may, imperceptably. Also funny is removing the pineapples definitely makes the car squat more and axle tramp less. So this behavior of having more top end, squatting more, and scrabbling for traction more makes me think = more power. But I could have just been sitting on the threshold of that kind of behavior before. Time will tell if my butt dyno is calibrated right. I need the exhaust leaks fixed before dyno tune for obvious AFR related reasons - I repositioned the pipes but I'm not confident it's fully sealed even if it is better. At least the car does drive around while I cannot tweak/tune it for now. And I have aircon again. medium success!
×
×
  • Create New...