TeamRX8

iTrader: (25)

I was really surprised when you said it was a Haltech

dannobre

iTrader: (3)

Well....the Motec and Bosch options are way over my pay grade....

The Microtech had too many problems....

And still not sure the Cobb can be configured to do what I want...it wasn't out when I started down the standalone route.....

TeamRX8

iTrader: (25)

MoTeC is the only one with any real Renesis capability and experience though

unfortunately the Renesis is not the engine for going standalone on a budget, fortunately we now have the Cobb Tuning alternative

MazdaManiac

iTrader: (3)

"Stand-alone" and "budget" shouldn't really be in the same sentence, though the MegaSquirt almost gets you there is you are brave and good with the digitZ.

dannobre

iTrader: (3)

Megasquirt won't read the RX-8 trigger either.....

MazdaManiac

iTrader: (3)

It's been done.

Claudio RX-7

In my humble opinion, the megasquirter would maybe become a good system someday once it matures into a 32bit system with the right set of hardware and software already done so that you dont need to be a computer geek, electronic engineer, or nasa scientist to be able to properly set it up.

An RX-8 with a Sport 1000 in parallel with the stock ECU and a custom crank trigger would definitely do the job pretty well if you ask me, granted, we cant control the aux. port motors, but pretty much all the other solenoid operation is pretty straight forward. Ive done an FD using an E6K of all things, maintaining the stock twin turbo sequential operation, simplifying the solenoid count, and using fewer outputs. So, with a system like the Sport 1000 it would be real easy to do as well, since its less solenoids to start with on the RX-8 than on the FD's rat's nest.

I still have that documentation if anybody needs it (for the FD). Using a PS2K would give you even more flexibility and options to run at one time.

TeamRX8

iTrader: (25)

no APV control = immediate Renesis fail

dannobre

iTrader: (3)

On a NA one for sure...I'm still not sure it makes too much difference on a turbo setup...I have played with opening it at different times and haven't noticed much difference

Claudio RX-7

Can some one point me to what ever thread explain the entry points for the different actuators and APV's? I would like to see what i can come up with.

But on a side note, you can always let the stock ECU handle what you cant control through the Haltech, and if you say Dannobre, that you've moved it around and seen no real gains, im inclined to think it shouldnt be a problem to tune around it with the Haltech.

Nemesis8

iTrader: (3)

Yes, kind of like what Hymee's super duper smooth 6-port engine dyno graph looked like - all open through the entire rev range.

TeamRX8

iTrader: (25)

https://www.rx8club.com/series-i-major-horsepower-upgrades-93/aux-port-delete-fi-discussion-190230/

Claudio RX-7

Ok, good, thanks, but i cant find a clear response to their entry points, can someone outline it for me please?

SSV comes in at XXXX RPM
VAFD comes in at XXXX RPM
APV comes in at XXXX RPM
VDI comes in at XXXX RPM

From what ive read, the turbo engines apparently dont get any benefit to the VDI operation? I would attribute this to air flow and turbo selection, exhaust system of choice and intake pipe diameter/intercooler flow efficiency would also probably fit in to this, maybe a properly tuned intake and exhaust system would benefit as well from all the port valves and their functionality. But, going by my experiences with the REW motors, if you've got a turbo in the mix, and you dont open the valves at the right time you could cause serious restrictions, poor operation or blow something off, probably why one of the guys on one of those threads said he reported seeing higher boost pressures in the turbo charge pipe than in the manifold.

But since doing all that takes a lot of R&D, time AND $$$, i doubt someone will make the effort.

Is there anyway i could get the Cobb tuning software and a stock base tune so i can see everything and play with the different settings? See how timing and injector operation is set?

Ive used the OpenECU/ECUFlash stuff and its good to have around to get a good idea of how it runs originally.

Many thanks for the info contributions!

TeamRX8

iTrader: (25)

Search n00b j/k

that was for just the APV function and the discussion revolved around their opening relative to a turbo application

MazdaManiac

iTrader: (3)

* This is a minimum RPM for the SSV. It comes on when the secondary injectors are called, which is based on load.
Even at a minimum load, the SSV (and the secondary injectors) will come on in open loop above 6500 RPM or so no matter what.

Claudio RX-7

Ok, this helps a lot, one more thing MM, can you add to this bit of info the injector strategy? The more i think about it, the more i need a Sport unit to control all this.

I received a few days ago some info from Haltech on how to connect a solid state relay to control things like the APV (or motors of that kind) in a pulsewidth fasion, sooo, right now, using a sport + custom crank trigger, and this solid state relay to control the motor on the APV's would be the end result we're hoping for, total engine control.

The Injection of course would be staged in a similar manner as how you've indicated, and the injector entry points would be based on load as well. Of course, all this is theoretical, i have yet to sit down with a car to try all this out, but i am confident it will work good.

Hopefully we'll have a proper option soon and not a "work around" one.

Thanks for all the feedback gents, much appreciated!

Symbioticgenius

Does\Can the Motec work with the S2?

Salamanth

The S2, for all intents and purposes, is not different enough from the S1 to make it not "work". You can do some crazy stuff with the MoTeC units (IIRC 2x M880 daisy chained to run a V12, among other things)

Claudio RX-7

Guys, i have another question, a buddy of mine here just purchased an RX-8 from the US that came with a turbo kit, i dont know much on the specs of anything except that the car came with an eManage Ultimate (which was stolen upon importing into the country) and i wanted to find out the following. In the Greddy eManage turbo kit, what is the manage controlling? is it running just the ignition and fuel, or is it controlling anything else? Cause it would seem to me that if the eManage is running only ignition and fuel you would be obtaining better performance out of this turbo kit using the Sprint RE.

Correct me if im wrong.

dannobre

iTrader: (3)

I could work...better than the E-manage...but for the price the AP is better for a Greddy kit power output

Still on the fence about 350+ area with a Sport Series

Brettus

iTrader: (2)

interesting - I have noticed a big lean spike at low load and high rpm . Perhaps a result of incorrect (380/380) ratio between p1&S that I currently run ?

Claudio RX-7

So you're saying when it comes down to it, the bottom line is people will always choose the cheap route, no matter what the limitations are? I honestly think this is not the case, most of the people i talk to that have upgraded from a cheap solution to either a moderately priced one or a more expensive one always say the same thing "i should've done this from the beginning", or to quote a guy i respect a lot, "you get what you pay for when you get the cheap stuff".

But still, id like to know what th greddy does in the 8, does anybody have any info or a link to any threads regarding the greddy turbo kit install and emanage tune? We will do one of 2, either get another ultimate to put on the car and just tune it, or if i can get some parts that he has in the US sold quick enough, he may spring for the haltech, if anybody wants to find out what parts he has i can get the list from him, they're in the US so they would be shipped from there. I know its like glass, dash, radio, electronics, pedals, suspensions, etc., but ill confirm exactly what it is.

Thanks again for the continued feedback.

dannobre

iTrader: (3)

I never said that the price was the deciding factor in anything....What I meant was that the functionality of the RE was likely much better than the E-manage.....but that the COBB AP was a better functioning unit for the Greddy Turbo kit power level on the RX-8

I am likely one of a few RX-8 owners that have used a Haltech solution in there car. I chose it when the only alternatives at the time were the Microtech based INTx, and the E-manage Ultimate...or the vastly more expensive Motec system

There are many times that I wished I had tried the more expensive alternative

I had originally tried the INTx..but found there were limiting factors that I couldn't live with. The E-manage was too much of a compromise in all areas.....

So I went with a more expensive alternative...the Haltech...for which there was no RX-8 support, the RX-8 trigger... APV intake valve support...or easy ways to make a three stage injector system work easily. I made controllers for a number of things...custom brackets and trigger wheels for the trigger sensors etc...and have the unit working fairly well....

Now along comes the RE...a unit with less functionality (than the Sport 1000)...but that reads the RX-8 trigger......ding ding...I'm thinking Great....now we could have a winner..at a live able price .

The more I looked into it the more I found that the unit didn't address a lot of other issues inherent with the RX-8 that are deal breakers over the reflash of the stock ECU...Injector staging, intake valve operation, Ve tuning, or a Sport 1000 sized tuning matrix

I have been asking for, and promised a Sport 1000 with the trigger solution for a number of months now....and it doesn't seem to be forthcoming

So in the quest to try and rid myself of a problem with my setup..I'm going to try using a COBB solution...even though I can see having potential problems with the MAF..

I have likely spent as much money now on figuring out the Haltech...as I would have spent on the Motec...with much less functionality. Don t get me wrong...a lot of it is likely my fault.....but I'm far from an idiot...and am beginning to understand much better the things that I want or need to deliver the functionality level I desire.


In that regard...I can not see the Sprint RE working better than..or as well as the COBB at this time.......

I have hopes for the Sport Series...would LOVE a Platinum unit that had the kind of support of the GTR unit...but I understand that isn't going to happen because of the platform

When the Sport trigger is working I may try again if some of the other problems are addressed as well.....but in some regards..I have felt marginalized and unsupported in this application ......

Claudio RX-7

When ever you have any questions regarding the Haltech line up, especially related to Rotary applications, please call the Haltech office, 760 598 1941, and ask for Claudio. He'll be more than happy to address any and all questions you might have, including those related to solving problems, coming up with solutions for your installations and general customer tech support. :D

Friendly guy, you'll be sure to find what you need.

dannobre

iTrader: (3)

I got some great support from Scott and Matt in Aus......

Who is this.....Not Claudio for sure Otherwise you might want to think back a couple of years I will leave it at that

I have also received a lot of help from another user on this forum as well....