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12-10-2008, 08:08 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
What diff to use for Cobra
The Same Old Question Comes Up Again ! Im Runnig A 460 Stroked To 545 With A C6 And A 288 Jag Diff I Have Bought A Tko600 And A 9 Inch Irs Housing Going To Run 3.5 Gears Should I Run Open Centre Lsd Or Detroit Locker?
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12-10-2008, 08:15 PM
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Senior Club Cobra Member
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Join Date: Jul 2000
Location: Chilliwack,BC,
BC
Cobra Make, Engine: F5 Roadster
Posts: 1,409
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Not Ranked
No locker
Hi,
I would not run a locker on the street as it will push you off of any crowned road and when you let up off the gas as you go into a turn it will swing the rear around.
You could also install an air locker diff, that way you can lock the diff for drag racing and and unlock it for turns.
Good luck,
Perry.
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12-11-2008, 12:14 AM
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CC Member
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Join Date: Aug 2001
Location: Melbourne, Australia,
Vic
Cobra Make, Engine: G-Force Mk I, 5L Windsor, TKO 600, enhanced Jag / Koni suspension & LSD Diff.
Posts: 2,298
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Not Ranked
Just make it a strong one with that donk!!
How's the tremec going Mark?
The slow slow boat is still chugging for us as I believe I heard the words "they rolled the container" just before he said delivery early in the new year - sheez
__________________
slowy
Last edited by stephen low; 12-11-2008 at 02:16 AM..
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12-11-2008, 01:46 AM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
How'z it going steve did you finish up bringing a tko in! How is the cobra going I bought one in air freight Cheers Mark
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12-11-2008, 02:18 AM
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CC Member
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Join Date: Aug 2001
Location: Melbourne, Australia,
Vic
Cobra Make, Engine: G-Force Mk I, 5L Windsor, TKO 600, enhanced Jag / Koni suspension & LSD Diff.
Posts: 2,298
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Not Ranked
Mark
My post above means I'm still waiting for mine to land here and then there still may be problems. Should have airfreighted like you. What did that end up costing you for the freight side of it?
How is the TKO to use?
And where did you have your shift point and how is it for location in the car?
Steve
__________________
slowy
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12-11-2008, 02:49 AM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
Haven't put it in yet waiting to sort out the diff will do both at the same time
Freight was $600 plus $950 GST and other charges That was for $6300 dollars au worth of gear Its very important that the goods are marked made in USA otherwise you'll pay another %10 import duty
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12-11-2008, 02:50 AM
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CC Member
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Join Date: Mar 2007
Posts: 272
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Not Ranked
Have a play with this ratio calculator.
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12-11-2008, 02:51 AM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
Is there anyone out there that can help me with the diff situation
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12-11-2008, 02:56 AM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
Thanks cobber I'm running .64 5th 3.25 will be to high Iam currently running lsd 2.88 i'll probably stick with LSD
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12-11-2008, 02:43 PM
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CC Member
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Join Date: Aug 2008
Location: airlie beach / mackay,
QLD
Cobra Make, Engine: Some kind of FORD thingy, with several pis tins, twin chain driven SUs feeding a Y block, apparently.
Posts: 501
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Not Ranked
Quote:
Originally Posted by HighPlainsDrifter
Hi,
I would not run a locker on the street as it will push you off of any crowned road and when you let up off the gas as you go into a turn it will swing the rear around.
You could also install an air locker diff, that way you can lock the diff for drag racing and and unlock it for turns.
Good luck,
Perry.
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thats not true , i run a locked diff on the street and have done so for years and have not experienced any of the those problems, the 71 xy gtho came from the factory fitted with detroit lockers and have never heard of any of them being turned around. tomcat
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12-11-2008, 09:42 PM
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CC Member
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Join Date: Jul 2003
Location: DURBAN,
kzn
Cobra Make, Engine:
Posts: 238
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Not Ranked
Gear Ratios
THANKS FOR THE GEAR RATIO CHART.
ITS THE BEST,EASIEST TO USE THAT I HAVE COME ACROSS.
REGARDS
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mr lucky
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12-11-2008, 10:34 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
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12-11-2008, 10:39 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
Quote:
Originally Posted by tomcat racing
thats not true , i run a locked diff on the street and have done so for years and have not experienced any of the those problems, the 71 xy gtho came from the factory fitted with detroit lockers and have never heard of any of them being turned around. tomcat
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Are you running a detroit locker or a locked diff
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12-12-2008, 12:01 AM
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CC Member
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Join Date: Jul 2003
Location: DURBAN,
kzn
Cobra Make, Engine:
Posts: 238
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Not Ranked
Gear Ratios
Thanks Again.
I Still Like Your 1st One.the Graphs Help A Lot When Calculating Change Points For Different Internal Gear Ratios.
Have A Wonderful Cobra Day:d
__________________
mr lucky
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12-12-2008, 12:41 AM
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CC Member
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Join Date: Aug 2008
Location: airlie beach / mackay,
QLD
Cobra Make, Engine: Some kind of FORD thingy, with several pis tins, twin chain driven SUs feeding a Y block, apparently.
Posts: 501
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Not Ranked
locked diff
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12-12-2008, 07:45 AM
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CC Member
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Join Date: Sep 2008
Cobra Make, Engine: csx4163 full comp alu. body
Posts: 368
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Not Ranked
Side note, but interesting, the challenge shelby cobras run solid spool,and have for some time .
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12-12-2008, 01:52 PM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
When I picked the TKO 600 w/ 0.64 OD and a 3.77 rear end for my FIA most people on this site said 1st gear would be useless... I just finished the build the other weekend and for the first time I had it on the open roads today. I'm very happy with my tranny and rear end combo! It accelerates very well! I can't wait until it's broken in and I can spin the motor a little!
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12-12-2008, 08:21 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
What diff are you running open centre LSD Or Detroit Locker?
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12-12-2008, 09:01 PM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
I ordered the diff with LSD.
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12-13-2008, 02:43 PM
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CC Member
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Join Date: Jul 2008
Cobra Make, Engine: BBF 545 Stroker Alloy Heads Roller Cam Aluminium Flywheel Twin plate Clutch TKO600 9inch Independent Rear 335x17 Rear 315x17 Front 1140kg
Posts: 292
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Not Ranked
I am leaning toward the detroit locker is anyone going to talk me out of it
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