Welcome to Club Cobra! The World's largest
non biased Shelby Cobra related site!
- » Representation from nearly all
Cobra/Daytona/GT40 manufacturers
- » Help from all over the world for your
questions
- » Build logs for you and all members
- » Blogs
- » Image Gallery
- » Many thousands of members and nearly 1
million posts!
YES! I want to register an account for free right now!
p.s.: For registered members this ad will NOT show
 
Main Menu
|
|
Nevada Classics
|
|
Advertise at CC
|
|
November 2025
|
| S |
M |
T |
W |
T |
F |
S |
| |
|
|
|
|
|
1 |
| 2 |
3 |
4 |
5 |
6 |
7 |
8 |
| 9 |
10 |
11 |
12 |
13 |
14 |
15 |
| 16 |
17 |
18 |
19 |
20 |
21 |
22 |
| 23 |
24 |
25 |
26 |
27 |
28 |
29 |
| 30 |
|
|
|
|
|
|
|
|
CC Advertisers
|
|
05-27-2010, 03:08 AM
|
 |
CC Member
|
|
|
Join Date: Jan 2007
Location: Melbourne,
VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
|
|
Not Ranked
Like the man says at the end "brilliant!".
Who flared your guards? Much mucking around to get the right shape? Looks like I will need about 30mm each side to fit the wheels I want.
|
05-27-2010, 03:55 AM
|
|
CC Member
|
|
|
Join Date: Feb 2008
Posts: 110
|
|
Not Ranked
Looks like you've got all the bases covered - it sure does sound nice. I'd be interested to know what you are doing to get the tacho working.
Peter
|
05-27-2010, 04:05 AM
|
|
CC Member
|
|
|
Join Date: Jul 2007
Location: Melbourne,
VIC
Cobra Make, Engine: Harrison build #98 with Supercharged 6.2L of Chev Power, TKO600 5 speed gearbox
Posts: 210
|
|
Not Ranked
Quote:
Originally Posted by Pecal
Looks like you've got all the bases covered - it sure does sound nice. I'd be interested to know what you are doing to get the tacho working.
Peter
|
Peter,
I spoke to John today, the guy doing the auto electrical side of things and he has the tacho going, it was only a small issue with it as it needed some electrical gizmo doohicky to get it working. I love the sound of the supercharger whine already.
My ability stops at my FJ40. |
05-27-2010, 04:43 AM
|
 |
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 102
|
|
Not Ranked
the tacho problem is an easy cheap fix....
does yours not work PECAL?
__________________
www.ultimateconversionwiring.com.au
_
|
05-27-2010, 05:47 AM
|
 |
CC Member
|
|
|
Join Date: Apr 2008
Location: Melbourne,
VIC
Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
Posts: 1,121
|
|
Not Ranked
Quote:
Originally Posted by Pecal
Looks like you've got all the bases covered - it sure does sound nice. I'd be interested to know what you are doing to get the tacho working.
Peter
|
Peter, my tacho didnt work initially. I put an oscilliscope on it and found the signal was only 1 volt peak to peak coming out of the ECU. Took the Tacho back to Howards and they modified the input.
Rgds Gregg
P.S. Well done T.L. - that supercharger look awesome and sounds fantastic.
Last edited by gjkrv8; 05-27-2010 at 05:49 AM..
Reason: forgot to say weel done to TL
|
05-27-2010, 05:56 AM
|
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 102
|
|
Not Ranked
yep out of the GM ECU's the signal is only very weak and needs to be boosted up.. Good job on the Build
just run a pull-up resistor and all will be good.. same as what was needed for T.L's car
__________________
www.ultimateconversionwiring.com.au
_
Last edited by Doubledip; 05-27-2010 at 06:02 AM..
|
05-27-2010, 03:25 PM
|
|
CC Member
|
|
|
Join Date: Feb 2008
Posts: 110
|
|
Not Ranked
I tried a pullup resistor suggested by Sideshow without success. I went to Howards and he said the signal used for the Tacho on these engines is Multiplex so it can't be adapted to the tacho. His suggestion was to cut an injector wire and put a signal amplifier in series to get a trigger for the Tacho - not a very attractive solution.
Peter
|
05-27-2010, 03:32 PM
|
|
CC Member
|
|
|
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 102
|
|
Not Ranked
Quote:
Originally Posted by Pecal
I tried a pullup resistor suggested by Sideshow without success. I went to Howards and he said the signal used for the Tacho on these engines is Multiplex so it can't be adapted to the tacho. His suggestion was to cut an injector wire and put a signal amplifier in series to get a trigger for the Tacho - not a very attractive solution.
Peter
|
No. sorry to say but he is wrong if he is saying you cant get a tacho to work off these ECU's.... maybe some tachos (i am yet to see) but it will work 99% of the time.. the other times you need a different booster..
I gather you being the Peter that we supplied the LS3 for ? ... if so i will have a look at you tune to see if it was set correctly..
Did you get any drawings on how to wire it in..?
__________________
www.ultimateconversionwiring.com.au
_
|
05-27-2010, 04:12 PM
|
|
CC Member
|
|
|
Join Date: Apr 2008
Location: Melbourne,
VIC
Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
Posts: 1,121
|
|
Not Ranked
Hi Peter,
If you need me to come over to put an Oscilliscope on the signal to see what it looks like - let me know.
Rgds
Gregg
|
05-27-2010, 04:03 AM
|
|
CC Member
|
|
|
Join Date: Jul 2007
Location: Melbourne,
VIC
Cobra Make, Engine: Harrison build #98 with Supercharged 6.2L of Chev Power, TKO600 5 speed gearbox
Posts: 210
|
|
Not Ranked
Quote:
Originally Posted by sambo
Like the man says at the end "brilliant!".
Who flared your guards? Much mucking around to get the right shape? Looks like I will need about 30mm each side to fit the wheels I want.
|
Sambo,
I can take the credit for the 'brilliant' comment at the end, and sourcing a lot of parts that I found great fun.
I can't take any of the credit for the guards. The car is being done by Doug Pearce Engineering, so they would be the ones to speak to, and yes they were flared about 30-35mm to fit the knock on wheels. My ability stops with my FJ40, and that is about my level of understanding, simple and not too many wires and a carb and dizzy.
Last edited by T.L.; 05-27-2010 at 04:07 AM..
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 04:58 AM.
|
|
Hybrid Mode
