ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 04-23-2020   #151
spork2367
 
Join Date: Jun 2013
Location: PA
Posts: 879
Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by jss06c6 View Post
Sorry, you're wrong. Handles the CCM datastream on the LT-1/4 just fine.

Sent from my SM-G950U using ZR-1 Net Registry mobile app
This is from Torqhead's manual, on their website, with a copyright date of 2019. I'm not sure why the manual would say the system doesn't support those functions if it does.

"Note this upgrade is for Off-Road use only. It is important to understand some of the systems on the LT engine will be incompatible. These systems are the EVAP, Air Pump, and EGR. If you install these components on a corvette (Y-Body) you will also loose functionality with the onboard CCM and some dash
functions as well as other serial communication issues. TORQHEAD is continuously improving their products to improve compatibility of systems, so please keep an eye out for updates!!"

Quote:
Originally Posted by XfireZ51 View Post
Actually he started out w the LT1/4 first.
The Lt1/4 kit is all they offer. They don't have any offerings for the L98.
spork2367 is offline   Reply With Quote
Old 04-23-2020   #152
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,681
Default Re: ECM And Ignition Module Availability/ replacement

Well we know that TH does have CCM comms on the LT1/4.

"Note this upgrade is for Off-Road use only. It is important to understand some of the systems on the LT engine will be incompatible. These systems are the EVAP, Air Pump, and EGR. If you install these components on a corvette (Y-Body) you will also loose functionality with the onboard CCM and some dash
functions as well as other serial communication issues“

I read this to mean that IF u try installing EGR, AIR, and EVAP, u lose CCM coms which is why I made a previous comment about how TH may have overridden these functions to achieve comms w the CCM.
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman
Former ZR-1 Registry - BOD
1972 Corvette 4speed base Coupe SOLD long time ago
1984 Corvette Z-51/4+3 SOLD
1992 Corvette ZR-1 Aqua/Gray #474 SOLD
1992 Corvette ZR-1 Black Rose/Cognac #458
2014 Honda VFR Interceptor DX
XfireZ51 is offline   Reply With Quote
Old 08-31-2020   #153
-=Jeff=-
 
-=Jeff=-'s Avatar
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,144
Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by grahambehan View Post
There are many steps to complete in the process of validating the hardware and software going forward. The video shows what actually is a pretty significant stress test for the circuits simulating a grounded plug wire. Next up will be connecting all coils and wires and debugging the code for the auto dwell function, followed by a more comprehensive test cycle with the simulator. Then connecting to a factory harness and ecu to test the est functionality. There will, no doubt, be issues found in the debugging process, but progress is being made in pretty significant steps right now.

Graham
Quote:
Originally Posted by A26B View Post
This is the prototype DIS Module circuit board & billet case, that is controlling the spark firing the ignition coils in the still photo and video shown in post #106 above. It interesting to see the spark at a single coil, during the demo from idle to 8,000 rpm.



HI Jerry / Graham

Any more info on this IM? just curious as I am seeing a couple hoping theirs is not bad
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
-=Jeff=- is offline   Reply With Quote
Old 08-31-2020   #154
grahambehan
 
Join Date: Feb 2013
Location: New Concord Kentucky
Posts: 179
Default Re: ECM And Ignition Module Availability/ replacement

Hi Jeff,
Well I wish the answer was better, but here it is. This year has been quite difficult, given the circumstances. We have arrived at a point where we cannot proceed any further with the current vendor, the only part of the software that needs to be completed is the handover to ecm control of spark and the verification of that. We are actively seeking another software developer that can complete that for us. We have all the current software and the support of our original developer in this effort. We have come too far to give up at this last hurdle. Unfortunately this has been a crazy year, but it is what it is.
Regards
Graham
grahambehan is offline   Reply With Quote
Old 08-31-2020   #155
-=Jeff=-
 
-=Jeff=-'s Avatar
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,144
Default Re: ECM And Ignition Module Availability/ replacement

Graham,

That is a positive answer. Thanks for the update, totally understand why it is moving slow due to the circumstances. I am glad it will be seen up to the end. Slow and steady wins the race
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
-=Jeff=- is offline   Reply With Quote
Old 10-10-2020   #156
Erik
 
Join Date: Nov 2016
Location: New Brunswick
Posts: 936
Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by grahambehan View Post
Hi Jeff,
Well I wish the answer was better, but here it is. This year has been quite difficult, given the circumstances. We have arrived at a point where we cannot proceed any further with the current vendor, the only part of the software that needs to be completed is the handover to ecm control of spark and the verification of that. We are actively seeking another software developer that can complete that for us. We have all the current software and the support of our original developer in this effort. We have come too far to give up at this last hurdle. Unfortunately this has been a crazy year, but it is what it is.
Regards
Graham
Graham, is there any way to help or support you in your endeavours?
__________________
1990 ZR-1 # 996

"All Corvettes are red. The rest are mistakes." - John Heinricy
Erik is offline   Reply With Quote
Old 03-03-2021   #157
spork2367
 
Join Date: Jun 2013
Location: PA
Posts: 879
Default Re: ECM And Ignition Module Availability/ replacement

Bump for 2021. Any updates?
spork2367 is offline   Reply With Quote
Old 03-05-2021   #158
A26B
 
A26B's Avatar
 
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,376
Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by spork2367 View Post
Bump for 2021. Any updates?
Yes.

The DIS Module development project has been suspended. We (Graham Behan & I ) were at a difficult decision point whether to proceed with the project or not, due entirely to the cost feasibility.

During our evaluation, a sizeable inventory of new, OEM DIS Modules became available and was acquired by Jerrys Gaskets. The cost was low enough that we could sell the new, OEM modules for less than our cost for the modules we were developing.

The critical shortage of DIS Module has been alleviated for the present, and the price point is at least bearable.
__________________
Jerry Downey
JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
A26B is offline   Reply With Quote
Old 03-05-2021   #159
Corvette95
 
Corvette95's Avatar
 
Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,107
Default Re: ECM And Ignition Module Availability/ replacement

Quote:
Originally Posted by A26B View Post
Yes.

The DIS Module development project has been suspended. We (Graham Behan & I ) were at a difficult decision point whether to proceed with the project or not, due entirely to the cost feasibility.

During our evaluation, a sizeable inventory of new, OEM DIS Modules became available and was acquired by Jerrys Gaskets. The cost was low enough that we could sell the new, OEM modules for less than our cost for the modules we were developing.

The critical shortage of DIS Module has been alleviated for the present, and the price point is at least bearable.
Whats the work around for the first #500 VIN's this DIS won't work with? I remember reading about a different gap in the crank sensor I believe but can't recall right off (asking because I have a pre-500 90). Thanks
__________________
Corvette95 Registry and Forum (*************)
1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD
1995 C4 Coupe Purple/Blk 6 Speed
1989 C4 Conv Wht/Red Auto SOLD
1996 C4 Conv Black/Tan Auto SOLD
1994 C4 Coupe Wht/Blk SOLD
1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD
1986 C4 Coupe Black/Red 4+3 SOLD
1990 C4 ZR-1 Red/Red #0454
Corvette95 is offline   Reply With Quote
Old 03-05-2021   #160
Corvette95
 
Corvette95's Avatar
 
Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,107
Default Re: ECM And Ignition Module Availability/ replacement

from the FSM
Attached Files
File Type: pdf DIS.pdf (163.1 KB, 11 views)
__________________
Corvette95 Registry and Forum (*************)
1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD
1995 C4 Coupe Purple/Blk 6 Speed
1989 C4 Conv Wht/Red Auto SOLD
1996 C4 Conv Black/Tan Auto SOLD
1994 C4 Coupe Wht/Blk SOLD
1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD
1986 C4 Coupe Black/Red 4+3 SOLD
1990 C4 ZR-1 Red/Red #0454
Corvette95 is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:15 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020