philodox

okay okay okay okay okay... so I got a little excited? :p

philodox

Finally got the instructions translated by Greddy from Japanese into English. The instructions are very well laid out and looks like an extremely simple install compared to most bolt on kits. The file is 930k, so I can't attach it here. If anyone is interested in them PM me and I'll be happy to email them.

-Jon

RedRenisis

Stewart Warner has a 3 pod that goes over the center dash.

www.stewartwarner.com

Its not up on the website as of yet but they do have it, call them.

adrian-1

I've uploaded the instructions to my site. It's a 1MB .pdf file with lots of pictures.
http://www.***-internet.com/adrian-1/images/RX8/

NAVILESRX8

iTrader: (1)

With the E-manage, can you change fuel cut? Lower or raise the fuel cut RPM?

truemagellen

doesn't look like it...I just read the manual and everything is preset...no tuning allowed...seems like if you want to you can hook up a CZ unit (a retrofitted E-manage unit) and start tinkering

Cam

iTrader: (1)

I have a question as I dont know a whole lot about FI. We have so many Greddy thread going I wasnt sure which to post this in.

Per the instructions Greddy includes it states:

"It is very important that you monitor the boost pressure, and make sure not to over
boost. Over boosting can cause engine damage."

So how do you make sure you dont "overboost". I thought the turbo/emanage was programmed at 5llb of boost?

Can someone enlighten me on this aspect of FI?

army_rx8

teh e-manage only comtrols fuel/ignition timing (to a certain degree)...as i understand it..i think greddy is saying don't put a boost controler on and tell it to go to the max. they are covering their butts..wihch is a good idea if you ask me

BUt as far as i knwo the e-manage doesn't really control boost...but seeming how i don't hav eone i might just me talking out of my tail-pipe:p

philodox

I do not know. I wouldn't want to play around with the fuel cut-off.

RotorManiac

Thats a very good question Cam, I'd like too to here some experts comment on this...

army_rx8

^^^^i'd get a boost controler, that way the turbo will not go past a certain point (.4-.45bar according to greddy is what this is designed to do)

Richard Paul

iTrader: (5)

Isn't there a waste gate in the kit??

Jason

Anyone that goes with a turbo kit should always get a boost gauge. The boost is limited by the pressure on the wastegate. Im sure Greddy has set it at 5 lbs but its a good idea to have a boost gauge to make sure.

Jason

ScudRunner

the way i understand it, the wastegate is integral to the turbo itself..

Silverarrow

So aside from the sound of it, is there any reason to have a blow off valve? If the wast gate is integral?

Jason

The Wastegate and BOV do two seperate things. The wastegate will control the amount of boost you will see and the BOV will release the back pressure that happens when you come out of boost. The back pressure will work its way back to the turbo thru the intercooler pipes if you dont have a BOV.

Jason

speedweasel

I take it this recommendation comes from popping intercoolers?

MazdaManiac

iTrader: (3)

It does not control boost on its own. You need a separate boost controller.

A boost controller won't stop the turbo from spooling to its designed pressure. It is only useful for increasing the boost pressure to some level above the rated opening point of the wastegate.

What I've done is install an actuator that opens at a very low boost and then installed a boost controller to bring it up to where I want to operate. That makes it possible to control the rate of boost rise and prevent over-boosting.

Probably a good idea, but not mandatory. I did the initial testing with a cheep pressure/vacuum gauge taped to my windscreen.

Correct. It is attached to the turbine outlet directly.

You need some way to relieve the unused pressure built up by the turbo when you close the throttle. To some degree, the turbo can handle much of it simply coming back and slowing the compressor. This is only a viable solution up to 3 or 4 PSI. After that, you run the risk of damaging the turbo's bearings by allowing the compressor to stall.

ScudRunner

And while I don't know much about turbochargers specifically, I can tell you that when the compressor stalls on a jet engine, it's bad, mmm-kay.

philodox

Yeah, the backpressure from releasing the throttle bounces all that air back to the turbo causing it to possibly reverse direction until high boost applications.. causing bad spool times and over the long term, bearing damage. I bought a Greddy Type-S BOV and aluminum mounting flange for my kit to help prevent that.

Luckily the MAF sensor is on the suction side of the turbo and not the pressure side, so I don't forsee any MAF issues with idling *crosses fingers* caused by the Blow Off Valve. If I do end up having issues with the VTA Blow Off Valve, I will install an outlet adapter which will essentially turn the BOV into a recirc and solve the problem.. I'll have more info once I get it installed.

Travelintrevor

just posting to subscribe to this thread...good luck ..turbo cars are fun..rx7 turbo vert here!

MazdaManiac

iTrader: (3)

I don't seem to be having any real issues with the BOV open to the atmosphere, but I am still running rich in general for safety's sake until I get it all dialed in.

philodox

Glad to hear! I'm going to run with the base map Greddy Provides for the first 500 miles or so to make sure everything runs correctly at the base tune of 5psi before I tune it up to 6.5psi. I don't need anything more than that.

MazdaManiac

iTrader: (3)

I can concur with that! I am only playing with 3 or 4 PSI right now and it is hella fast. The difference at middle RPMs is insane.

ScudRunner

So, having read the instructions, they say you can't tune the EManage unit that comes with the turbo kit. Do you think that you actually can't tune it, or they just tell you not to so that you don't go crying to them when you screw it up and grenade your engine?