87 t-66

iTrader: (133)

I am going to be using an RTEK chip for my s5 t2 vert project and have a few questions....So far i have a BNR stage 2 turbo, 550/1600 injectors, fpr, and a walbro. I have the N370 ECU, MAP sensor, and AFM....Sorry for any newb questions.

I was planning on using a haltech but I have one on my other FC and am not going to be modding this car any more so I don't think it's really necessary. I have already drilled and tapped my waterpump housing for the Haltech coolant temp sensor and the tb elbow for the AIT sensor...Can I use these or do I need to use the stock sensors? Can I use the Haltech TPS? MAP sensor?

It looks like the 1.7 chip will be best for my application? Is this correct?

I have heard of people using PDA's to tune these things...Can I use my laptop? Where does the computer connect to the car's ecu? On my Haltech it has a serial port but I don't think this is the same with the RTEK?

When I get the ECU back from having the chip installed would I be able to start the car right away? Or do I have to build a map first like the Haltech? It it plug and play with the stock ecu or do I need to rewire anything?

I am using all low impedance injectors, unlike the s5's which use high. Is this okay with the RTEK or do I need to use resistors?

Thanks for the help. I am new to this and want to make sure I have all bases covered before doing the install.

AUGieDogie

iTrader: (4)

The Rtek uses just the stock sensors.
The 1.7 chip is designed for 550/720 injectors so you would still need a SAFC or the like to tune it to the correct fuel curve.
Right now the Palm pilots are the only way to tune the cars, they connect to a dongle that is installed into the side of the ECU. BUT the 1.7 is not tunable so that is a mute point. The 2.0 series are the tunable series but the S5 turbo is not out yet.

The ECU comes back ready to run your car. There are very minor settings to be changed and it takes like 2 minutes to change them. Again this is for the 2.0 series only.

You will need resistors on your FIs

Hope this helps

87 t-66

iTrader: (133)

but CAN i use the haltech sensors? if i traded my 1600's for 720's i would be straight then? any ETA on the 2.0 version?

KhanArtisT

iTrader: (2)

Yeah the 1.Xs are pretty much useless from what I can tell...If you've done enough mods to require 720cc secondaries you will benefit from some fuel and timing map modifications. So its either get the 1.x + SAFC for ~$350 or 2.x for ~$450

Edit: I just PM'd turbo2ltr about it.

87 t-66

iTrader: (133)

alright, i guess ill have to go that route. i didnt really want to mess with installing a safc though

i still want to know if i can use the GM sensors for coolant, tps, and AIT. the stock ones are always brittle and i have these sensors brand new already.

rogrx7

iTrader: (11)

I guess the question you want to ask your self is..will these sensors work on the stock ecu..if they do than I would vote yes...

87 t-66

iTrader: (133)

right. thats why i was asking you guys lol. ive never used the stock ecu for anything.

HAILERS

I don't see how any of those sensor could possibly work. Give up that idea all together. Use the stock sensors.

The values of those other sensors cannot be the same as the stock MAZDA sensors. Ain't no way. Plus the series five has a narrow and full range TPS, and I'd bet the one you have from Haltech does not or is not a dual TPS.

When and if RTEK makes a 2.0 or equiv for the series five, I'd wait and use that.

KhanArtisT

iTrader: (2)

According to turbo2ltr the Stage 2 is still several months away. Probably some time in 2009. This sucks. The 1.x chips aren't THAT bad though, I'll probably go with that and an SAFC. Plus I read in one of the threads that you can upgrade to the 2.x for only $299 instead of the usual $399 so you don't completely waste your money.

87 t-66

iTrader: (133)

i was just hoping i could use the brand new sensors i have instead of using the stock ones. looks like ill have to find a new waterpump housing.

i will probably just wait for the 2.0 to come out...this is going on my vert which wont be ready until next spring anyway.