Digi7ech

iTrader: (1)

Well it will hopefully all come together this week.

I am getting a new FPR and secondary fuel rail this week and Friday I should hopefully have my FC3S CF TII hood!!!

Just to make cooler.....

I ordered the Rtek7 1.5 ecu upgrade!!! YAY!!

I am going to send the ECU out today to get it installed and checked.

Say good bye to FCD,AWS!
Say hello to lowered secondary kick on, raised injector cycle cap, and timing retard over 9psi!!!

The cars running right now but the fuel rail was pushing 45psi constant so I was running super rich causing the turbo to glow under no throttle. Also had no FCD and no hood!

vaughnc

I'd like to point out he's running:

S4 TII Rotors (low compression)
S5 Turbo
S5 TII Engine

I'm assuming the Rtek7 1.5 is a "chipped" OEM ECU. If so, would timing be an issue with his setup and could Rtek compensate somehow?

Fitness Stain

i want to get the rtek upgrade, but I DONT want my injectors kicking on at 3500 ... cause if i was cruising at 80 on the interstate my secondaries would be on the whole time, and i would get horrible gas milage .... my rpm sits right at 3500 or so when cruising at that speed...

what would be cool is if you could tell them which few things you want (since there is limited space available), and they mod it to your specs

cloead

Your secondaries firing doesnt effect your gas mileage.

mycarisolderthanme

hey man, im also looking to do a turbo conversion. im just gathering a little data, how much did it cost you all together for all the turbo motor components and tranny?

Fitness Stain

how is that ..... if an extra set of injectors turns on and begins dumping fuel, how does that not affect gas milage??


more fuel being dumped into the engine??

VietFC

because when the secondaries fire, the primaries lower their duty cycle. So unless you're liek giving a lotta throttle to accelerate or something, you shouldn't see a big difference.

jon88se

I sent mine in last week and voila, it's here already. Goin to the shop tonight to pick it up.

J-Rat

iTrader: (2)

Hey C,

Let me know how you like it man! I am contemplating that purchase.

Fitness Stain

ill notice a difference if my gas milage changes at all .. i watch that **** like a hawk.. and i really dont see the need to change it a few hundred RPMS lower ..

i still think it would be cool to be able to request which addons you wanted


kinda like a meat and 3 ...
just pick 3 sides so long as they all fit on one plate

Digi7ech

iTrader: (1)

What's funny is that when I went to ship my ecu I noticed that they are down the street from me!!!!! lol

Their on Thunderbiord road like 5 blocks down.

Vaughn
The Rtek is just a chip they add into the stock ECU.
I sent them my N333 88 TII ECU.

I'm running a S5 engine but essentially it's all S4.
S4 rotors and S4 harness.

The reason why I bought it is because of the FCD removal. Everything else is a plus.

It removes the FCD signal completely. Meaning...
It allows the ECU to use fuel maps above the 8psi cut off point because it never gets a cut off. This is 100X's better than a FCD because the ECU is working with real data instead of it thinking it's only at 8psi.

Digi7ech

iTrader: (1)

Oh yeah. J I gotta send your ECU back.

Once I get mine back I'll send yours down since it's the perfect size box.

jacobcartmill

iTrader: (6)

the injector load gets split between all 4 when the secondaries kick in.

so lets say your injector duty cycle is 20% x2 while cruising on 2 injectors. if you had all 4 injectors firing, the injector load would be split to 10% x4

Fitness Stain

ahhh

ok cool ... thanks for clearing that up ....

so there is NO difference in fuel spent?

it just frees up the injectors from working so hard then i assume?

jacobcartmill

iTrader: (6)

correct. it really doesnt affect anything at all unless you go into boost, so all 4 will be on earlier and not let that fuel pressure drop cause a problem because you're not making as much power at 3500rpms as you are at 3800rpms

Fitness Stain

welp ... time to add that to the list then

i wish they could/would make it to where it would add more fuel for more boost over 9 psi ..

i wouldnt need anything but a walbro/re-wire, and the ecu upgrade to complete my fuel ..

that would rock

jacobcartmill

iTrader: (6)

well, by retarding timing over 9psi it has somewhat of the same effect.

jon88se

That's not correct and this has been covered a million times w/ the FCD. Fuel comes from the air flow meter, it has nothing to do with boost. The more air the meter reads, the more fuel the ECU supplies. What IS true is that the stock ECU has no timing retard above 8.6 psi. The rtek ECU is a nice plus in that dept.

Fitness Stain

i would just feel safer if they were like "yeah... more psi = more fuel"

retarding the timing im sure helps, but that fuel not being there seems like it would still present itself as a problem ??

i guess i just dont understand timing and its relation to fuel and boost all that well yet

full-cruise

iTrader: (5)

so how do you like the chip?
was there any HP gains out of it that you can feel?

full-cruise

iTrader: (5)

????

Digi7ech

iTrader: (1)

no gains that I know of but...... I had a NA before the engine swap so I don't know either.

Technically is won't ain HP but will allow the use of higher boost safely.

I do have a hesitation right at the injector switch but I think that's due to grounding.

I have no idea what boost cut feels like and I'm happy for that

I plan to go to the 1.7version once I get a boost controller and 2 720's

torean

ok....once the secondaries kick in the duty cycle lowers?...if thats the case..why dont they have it kick in alot lower rpm..?

rotarygod

iTrader: (1)

I sure hope they have it set up so only the primary injectors fire under 20% throttle. You're not boosting at this level anyways. If you are at less throttle than this when the secondaries kick in, it isn't going to be the best thing. The secondary throttle plates are closed at this point so no air is flowing past the secondary injectors. Hopefully they accounted for this and just state that the secondaries kick in at a lower rpm while under boost, which would be at greater than 20% throttle anyways.

jon88se

Because if you kick them on too early, you'll run lean on the top end. Kick them on too late, and you'll have a dead spot down low.