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STR Prep - ECU and Tuning Discusson

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Old Dec 21, 2011 | 12:04 PM
  #191  
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From: weston
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Yeah he spent about 4 hours tuning the car. He also mentioned doing it with the haltec which obvoioisly would be a second alternative since I already have the awm
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Old Dec 21, 2011 | 12:56 PM
  #192  
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Originally Posted by daverx7
Originally Posted by ConeKiller2' timestamp='1324498728' post='21254400
Btw just got an email from my tuner and he says we can piggyback the Aem plug and play ems into the car with the obd working and the o2 sensors working as well so it looks like I may be keeping the Aem after all. I think this just adds insult to this rule onbplugband play standalones
That's awesome!! Crispeed is about to make a bunch of money on 00-05 S2000 STR owners.

I wonder how much better that ECU is going to be over the eManage Ultimate. If it is better, then I will get one from them as I want to reward those that take a chance and develop for us and delivered.

-Dave

Yes, very interested. I suspect someone will figure out the 'standalone as piggyback' soon, given the number of cars that could benefit from it under the new STR rules.
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Old Dec 22, 2011 | 07:10 AM
  #193  
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Has anyone contacted hondata and explained this situation with STR s2000? I figure if anyone could come up with a solution it would be those guys. I figure if they could not produce a unit that is tuneable via a stock ecu for ap1's that they would at least be able to retrofit the stock housing with some other internals. Just a thought.
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Old Dec 22, 2011 | 08:07 AM
  #194  
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Originally Posted by murderedrsx
Has anyone contacted hondata and explained this situation with STR s2000? I figure if anyone could come up with a solution it would be those guys. I figure if they could not produce a unit that is tuneable via a stock ecu for ap1's that they would at least be able to retrofit the stock housing with some other internals. Just a thought.
Yes, the ideal solution for me would be some sort of Honda ECU that is tunable and works with the stock sensors, otherwise the 'standalone as piggyback w/ stock ECU doing OBD stuff' solution would be next in line.
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Old Dec 22, 2011 | 11:39 AM
  #195  
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Hondata has tried to crack the AP1 ecu but the problem is with the type of chip that Honda choose to use. Apparently, they are not reflashable and cost about 80 bucks a pop.... or something like that. Theoretically, they could tune them but it would be a costly endeavor. Trust me, if anyone has tried to do this, it was them. I mean look at all the gymnastics they've gone through to make K-Pro work for the AP1. That's proof enough.
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Old Dec 22, 2011 | 02:04 PM
  #196  
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what are the LxWxH of the stock ecu



haltech ecu pnp
Length: 158mm (176mm with MAP nipple)
Width: 158mm
Height: 42mm
Weight: 680g (1.5
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Old Dec 22, 2011 | 05:14 PM
  #197  
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heres a sprint 500 wired into a miata
http://72.29.74.111/~lmsefico/wordpr...ms_install.pdf

Why can't someone do this for us?

edit-

So as long as it fits in the stock ecu and retains obd2 functionallity then that's legal right? Can we make this fit inside the stock ecu?

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Just waiting on the specs on the stock ecu. This could be interesting. MAYBE!
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Old Dec 22, 2011 | 07:12 PM
  #198  
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Originally Posted by josh7owens
heres a sprint 500 wired into a miata
http://72.29.74.111/~lmsefico/wordpr...ms_install.pdf

Why can't someone do this for us?

edit-

So as long as it fits in the stock ecu and retains obd2 functionallity then that's legal right? Can we make this fit inside the stock ecu?





Just waiting on the specs on the stock ecu. This could be interesting. MAYBE!
I don't have dimensions of a stock ECU but I can offer up this info.
My buddy has the Haltech Pro Plugin and I'm chatting with him on AIM right now and he thinks that the guts from the Haltech would most likely fit into a stock ECU housing. The stock ECU is definitely smaller than the Haltech ECU. In fact, the stock ECU doesn't even fit in the box that the Haltech came in. BUT, I thought the rules states we must maintain ODB communications port functionality, which you do not get with the Haltech units.

"Change 14.10.F to read as follows:
“F. The engine management system parameters and operation may be modified only via the methods listed below.
These allowances also apply to forced induction cars, except that no changes to standard boost levels, intercoolers,
or boost controls are permitted. Boost changes indirectly resulting from allowed modifications are permissible, but
directly altering or modifying the boost or turbo controls, either mechanically or electronically, is strictly prohibited.
Traction control parameters may not be altered. Any standard OBD communications port functionality must remain.
Check Engine Lights (CEL) may be disabled via software. Alternate software maps which violate these restrictions
may not be present during competition, regardless of activation.
1. Reprogrammed ECU (via hardware and/or software) may be used in the standard housing"

Or I am missing something here?
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Old Dec 22, 2011 | 10:12 PM
  #199  
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Well guess what buddy...

Haltech Pro Plug In retaines all of the obd2 functionality.


http://parts.evans-tuning.com/haltec...0-pro-plug-in/


bottom of that page
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Old Dec 23, 2011 | 05:13 AM
  #200  
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Originally Posted by josh7owens
Well guess what buddy...

Haltech Pro Plug In retaines all of the obd2 functionality.


http://parts.evans-tuning.com/haltec...0-pro-plug-in/


bottom of that page
The Haltech gives you OBDII codes, I do not believe that is actually giving you OBDII Functionality. For example, Emissions readiness codes are disabled and the OBDII communications port in the car no longer works. The way I read the rule is that the OBD port itself must still provide its function, which it no longer does with the Haltech. You can't plug in an OBD reader into the standard port and get data from it. You can get CEL codes from the Haltech via a laptop plugged into the Haltech itself.

Any standard OBD communications port functionality must remain.

If the Haltech had OBD functionality then why didn't they just enable the OBD port in the car?

So can anyone explain what exactly OBD functionality truly means?

IMO, transferring the Haltech guts into a stock ECU will not be legal.

Btw,
I've got an AP2 pre-06, so like you buddy, I am also waiting for a solution to be found.
Obviously getting a Haltech piggyback connected to the stock ECU has been done already, but who can do it reliably? So far Evans can't, wonder if Crispeed knows something that Evans doesn't.
It's been done already, as Evans has shown but obviously reliability it key and having a unit that randomly throws off a CEL DTC to me is not truly reliable.

I am by no means an expert in any of this. Just going by how I interpret the rules and going by one of my best buddies who's got the Haltech Pro Plugin on his AP1, tuned by Evans.
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