smrx8

iTrader: (1)

wow when will the upgrade for the intake be ready

Psylence

Can we get an extension harness to put this AND the stock ECU someplace less hostile? Our company engineer laughed and shook his head when I showed him where the ECU on the '8 is.. its just a damn stupid place for it. Unless there would be too much signal loss from extending the cables, I'd much rather throw this whole 9 yards under a seat or into my trunk.

Electronics + heat = bad.

Over 300hp on stock injectors? That's one thing I have trouble swallowing.. aren't these small injectors? I would think that 300whp on stock injectors would be pushing them close to static, which is not a good thing at all.

Rasputin

I think you did not undertsand what I meant.
Does it then give you full authority on where you want to run open or closed loop? Is there an open/closed loop table?
Say, if I want your system to run in closed loop fuelling mode, using the OEM wide band lambda sensor, at 4500 rpm, 0.65 load, and at a lambda of 1.15, can I do it?

Also, you did not answer the question regarding knock control. Are you loosing that feature with your system?

Nemesis8

iTrader: (3)

You have ***** as big as church bells :D

truemagellen

yippie...along with Nem I commend you...fortunately it isn't too big of a gamble considering Mazsport's reputation :D

I want this unit with Hymee's supercharge...then I'll be content :D

RXhusker

I think Scott said that they are going to post a Q&A section in their vendor site tomorrow so all these questions may be addressed.

He was talking to me about all the control features -- but to be honest with you guys -- it was way over my head. I am sure he said that we still have the anti-knock sensors/features intact, etc. He indicated that just over 300 was limit of duty cycle safety margin for the stock injectors. I think he mentioned plans for like 5 stages of mods with (please don't quote me on this...) like 450+ whp potential with the modified GReddy kit (injectors, turbo mods, etc.) based on the computer analysis they have done. I think he has a good understanding that the majority of us would like smooth reliable 300whp power from our GReddy kits without major mods (fuel, battery placement, etc.) and a few would like very high HP racing applications.

I would suggest giving them a call -- I was impressed with how professional, knowledgeable and articulate he appears to be. I remember calling another vendor (they shall remain nameless -- but they have been promising to put out dyno numbers on their turbo with a shop in San Diego) and being less than impressed with the answers I received.

rotarygod

In closed loop mode there is no table. The ecu automatically compensates to get around a 14.7:1 afr. In open loop mode you have full control of what you want the map to look like whether it be fuel or spark. Whether or not the closed loop mode works with the narrow band or the wideband 02 sensor is a question for Mazsport directly. My guess is that it works off of the narrow band and that you don't have control of what afr it is shooting for.

As far as knock control goes, this too would be another driect question for Mazsport. brillo and myself are working on our own project but unlike this one ours isn't going into production. What ours does and what theirs does is probably similar but there will always be some differences. The stock knock sensor is undoubtedly still hooked up to the stock ecu but since the stock ecu has no control over fuel and spark, what it tries to do when it hears spark will be irrelevant. The stock ecu can't do anything about it anyways. However, there is the ability to tap into the factory knock sensor and allow the new ecu to control it. It can be done. Whether or not they did this, I don't know. If you stay nonturbo and never intend to go with forced induction, you do not need a knock sensor. If you do, your tuning was seriously messed up and in need of proper attention. For forced induction it is a good idea. I would suspect that they did tap into this. If they didn't, it wouldn't be that hard.

Any difficult questions or more specific questions should really be directly at Mazsport themselves. They are one of our sponsoring vendors now so don't hesitate to ask them questions directly. They are the only ones that can give you an answer with 100% accuracy.

davefzr

Almost 7 pages in 21 hours.. Not that bad I am just waiting to see any improvements on the N/A engine that can be obtainable with their system. To me, that would be very interesting.

Rasputin

îî All my questions so far were aimed directly and only at Mazport. Thanks.

F

tuj

Without DSP processing for the knock sensor signal, simply tapping the wire is useless. You can't expect to just use a threshold and have it work right. RG: you probably already knew that, but others thinking of using an aux megasquirt channel (without upgrades to the MS code) should reconsider.

The stock ECU has a very sophisticated processing model for knock detection. I suppose a solution would be to monitor the ECU's timing activities against its predicted timing for conditions, and use that different to pull timing. There are also analogue circuits of varying effectiveness that can condition the signal for the ECU. However, none of these are as good as the stock unit's processing.

rxeightr

I last checked in here early last night.

Then the RX-8 sky was falling.
Now the RX-8 is on its way to Shangra-La.

This should help Richard Paul's AF Supercharger project I suspect.

ScudRunner

I've been biting my tongue about this for quite a while now. Scott has had my car since April; he's being nice enough to hold onto it for me while I'm in Iraq, and I've been chatting with him by email . He made me promise not to tell anyone about this stuff until he was ready. I'm on the list for one of the first Interceptors, and also for the machining of the GReddy turbo to put in a larger compressor wheel that RXHusker mentioned. Hopefully when I get back in month and a half, I'll have a quite fast RX-8 waiting for me.

Jaguar

I bet that the cooling systems that they have for desktop computers could be configured to work on a car. They are pretty simple and can be fit into tight spaces. They also don't draw much power. Hope that helps.

Marietta 8

Archaic? How can you say that? Do you actually have experience w/MoTeC other than knowing the word? Sorry sport but you said something about the system that others try to emulate. "It's like MoTeC but cheaper and oh yeah it can't do everything that MoTeC can" or " it's like a Rolex only don't go swimming with it"

Ask the winning teams how they like MoTeC.

olddragger

iTrader: (3)

I knew Charlie would see this! LOL. Give em hell Charlie!
Ok this has unevened the playing field but hey thats life! Let the fun begin!
Yes computer fans can be placed ito help cool the ecu etc. I and others spoke of that over a year ago.Canzoomer folks were also concerned with the heat. Of course they where into stealth so the fans would be a dead giveaway. Point of interest--no cz unit ever failed because of the heat that I am aware off. I dont think this unit will generate anymore heat than that combo. The heat actually comes from the stock ecu. (and engine bay of course). It is a valid question however. If stealth is not an issue hook up 2 (intake and exhaust) computer fans to the stock ecu box(with filters of course) and no worries!
Now least we forget--this is indeed a big breakthrough BUT YOU WILL STILL NEED GOOD TUNING FI OR NA! So all those factors will come into the picture and yes i see economy maps, mountain maps, road track maps and drag maps all kinds of maps. even valet parking maps.
One question I have is the cz was invisable basically --unless you opened the ecu box. Will this unit be that way or would it need to be removed if you went to the dealer?
With this type of control some will surely push the envelope and blow an engine. So lets expect that and not overreact.
Looks like I will be brown bagging to work for a long time. --While I monitor results.
Olddragger
Ps Richard oh Richard where are thou Richard!

Ajax

I can say is it's about freakin time!
Congrats on being first to do it right!

I can't wait to see the results with an appropriately sized turbo.

takahashi

Proper tuned GReddy... I like it.

It sounds very nice. I better save up money for something soon. I want to give a major shock to the Porsches boys on the race track :D

Psylence

Marietta, go buy a Motec if you can.. and then tell me how awesome their shitcore DOS software is. It's completely user hostile. I had an M4Pro and loathed that software..

Don't give me this BS about "winning teams".. they can pay the mad loot to get the one guy who can work the software! It SUCKS.

zoom44

hahaaaha psylence your talking to the guy already with the winning team using motecs http://www.mazcare.com/

quote is to show his racing history

Fanman

Just wondering though at what point do you lose the primary appealing point of the Greddy kit...the price point. Let's assume the kit is about $3000 + $1800 for the standalone system + the other various accesories. At $4,800 you are getting into almost PTP Motorsports Turbo kit area. Wouldn't make more sense to get a T4 turbo system with (possible) Haltech engine management system ? This standalone makes sense for someone like me (who already has a Greddy system), but going forward when (hopefully soon) the PTP comes out at that point will this seem a bit fiscally unfeasible ? Unless, PTP comes out at $5500+.

I would be interested in an air intake for the Greddy kit. SR Motorsports was going to introduce one a few months back (based on their air intake unit) but pulled it because of the issues we were having with our Greddy kits at the time.

Also, the porting of the compressor housing is very interesting. That way those of us with the existing kit won't have to modify the placement of the turbo, or modify the existing exhaust manifold. What compressor wheel would they go to ? From 18G to 20G maybe ?

Psylence

I'm still stickin by my story. Motec has user hostile SOFTware. Their hardware is not in question.

I'm hoping for something, ya know.. that looks like it was coded this century when it comes to tuning

evilbada1

So for those of us who are sick of waiting,
can we buy the PTP turbo kit that's already complete and
buy this unit? instead of the EMS PTP will be offering?
I know I will have to tune it, but where would I tune this ??

Broke_Apex_Seal

I would like to know if you can advance the timing? This is not a trick question but I know you have full control of timing but can you only retard it or do both???????

Richard Paul

iTrader: (5)

OK, for Olddragger and whoever else was droping me hints. I have no doubt that this is a fine unit and would work.
My problem with it is that if I were to sell you all of the componants, meaning Blower, drive, brackets, ducting, belts, nuts and bolts. Hoses, wires and more for say $4000. What sense could it make to up the price 40% to $5600 just to include a box with $100 worth of electronic componants in it?

I'm not knocking them, they feel they need to recover their R&D with so many units sold. I'm just envious that I can't do it. I know I've got more R&D in my compressor then anyone has in a controller.

It just puts our kit out of the target market. You guys would be flaming me for overpricing. If this is the norm I'll commision someone to build me a propriatory unit. It'll take some more time but that's the cookie crumbles. The Mercedes bends.

Just hope RotaryGod and Brillo get that unit working. It should do everything this one does. Except split the plug firing independent.

Moostafa29

Email them. The kit itself has been available for awhile, and they will sell it to you. I believe right now they are working on engine management, so they can sell it as a complete kit, and not just as a tuner kit. I'm actually trying to save up for the tuner kit now, so this new ecu would fit me perfectly.