|
11-17-2005, 12:23 AM
|
#1 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
without 4,10's ??? your missing a great power
As you all know I went from 3,55's to 4,10's then to 3,73's and I just today went back to 4,10's and I tell you all,,,,,,,,,these cars were mente to run 4,10's as its such a night and day change,
what power it has with 4,10's man!!! if you have not tried them, I cannot recommend another mod until you have. I bet it would take 50 plus HP and 50 Lbs TQ to make a 3,55 gear feel like 4,10's do
__________________
03 Cobra 10th Anniversary Red Stiegermeier Stage 4 ported Eaton 511.9 RWHP 467.7 RWTQ 2,76 Billetflow SC pulley Billetflow Aux-idler all billetflow idler pulleys Accufab single blade MAC cold air BBK Ceramic LT headers X-pipe Magnaflow exhaust Gordsford heat exchanger PST Carbon fiber drive shaft lowered 1.5 inches 18 X 9's AFS running Toyos 275/35/18's front 18 X 10.5's AFS running Toyos 295/35/18's rear Cobra "R" rear wing Cobra "R" hood 4:10 gears Pedator tuned Pro short shifter Hurst "T" handle Promotion Clutch Quad AEM widband gauge Boost & fuel Press gauges drilled & slotted rotors |
|
|
|
11-17-2005, 01:07 AM
|
#2 |
|
Boosted
Join Date: Oct 2004
Location: Gastonia, NC
SCMC#: 01190
Vehicle: 1994 Black Cobra Coupe
Posts: 1,963
|
I was going to go with 4:10's when I did my solid axle, but I went with the 3.73's instead. For now it's good enough for me. If I ever have to take the rear end out again I will more than likely go with the 4.10 gears...................I may end up getting a Carbon Fiber Drive shaft later on down the road as well
 |
|
|
|
|
11-17-2005, 01:13 AM
|
#3 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
if your making any HP at all and you go to 4:10's that will bring the threshold down where your drive shaft if its screwed up like mine was you will have vibrations, then you will have go with a carbon shaft to solve the vibration issue that right now you will not notice unless you go out and drive over a hundred or more,
the 373 are nothing like 410's,,,not even close |
|
|
|
|
11-17-2005, 09:29 AM
|
#4 |
|
Solid Axle Equipped!
Join Date: Oct 2001
Location: Havelock, NC
SCMC#: 00673
Vehicle: Triple Black 97 Cobra and Oxford White 2003 Cobra Coupe
Posts: 1,708
 |
I'm not missing out on the power from the 4.10's. *cough* 4.30's here *cough* LOL. I'm switching them out though. But I will say that it definately has some serious pull with gears in it.
__________________
Josh 1997 Triple Black Cobra Convertible Forged and Blown. 511rwhp 398 rwtq 2003 Oxford White Cobra Coupe Twin Turbo Solid Axle and all the supporting mods |
|
|
|
|
11-17-2005, 08:33 PM
|
#5 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
4:30's UH????? Dang!!!!! your Cyropractor must love you,,,,,
I know with these 4:10's the pull is so incredible,,,,the other thing I wanted to tell you all is today was the very first time I had to test to see if I was going to get vibrations with the 4:10 gears back in a 80 MPH and up. its fine, I can run right on up to 130 MPH with absolutly no drive shaft vibration,,,,,Viva the Carbon shaft |
|
|
|
|
11-17-2005, 10:44 PM
|
#6 |
|
Dr Jekyll on the street, Mr Hyde on the track
Join Date: Jun 2001
Location: Rock Hill SC
SCMC#: 00001
Vehicle: 1994 Indy Pace Car, 1994 SVT Cobra Coupe, 2009 Shelby GT 500
Posts: 12,390
|
The best all around gear for these cars is a 4:10. As stated previously, you would not feel a big difference between a 3.90 and a 3.73 like you would a 4.10. JMHO!
__________________
Cobrabitn  F-250 Crew Cab Stump Puller! 6.0 Diesel Automatic with XLT Trim Package! 2009 Vista Blue Shelby GT 500 Coupe Stock for now! 1994 Rio Red Cobra "Sizzler" MAC OR Pipe, MAC Headers, MAC Catback, MAC Cold Air Kit, FRPP 3:55 Gears, FRPP Strut Tower Brace, Autopower roll bar, Maximum Motorsports Subframe Connectors, Maximum Motorsports Caster/Camber Plates, Maximum Motorsports Coil Overs, Maximum Motorsports Lower Control Arms, Bilstein Struts and Shocks, Steeda Shifter, Late Model Restoration Snake in Grille, Romac Balancer, SCT Superchip, "SVTCobraClub.com" Windshield Banner, Chrome Cobra R Wheels, AFR185 Heads, Chrome SCMC License Plate, Power Grid Adjustable sway bar links, 14.17 @ 100.3 mph, New dyno numbers are 302 rwhp with 333 rwtq! Tuned by Dan the Man of Pro Dyno! Modded Out For This Year  1994 Rio Red Indy Pace Car #22 "Runabout" stock Three Cobras are Better than None! Custom Data Plates for your Mustang or Ford! Buy "Official Ford Merchandise" at Data Plates Plus www.dataplatesplus.com See my MSR Video here! |
|
|
|
|
11-17-2005, 11:07 PM
|
#7 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
knowing how much better the 03-04's run all the way around with 4:10's
do those of you folks in the know think Ford used 3:55's mainly for fuel economy? Noise? or why? I can tell you right not that my car will get to its max top end better with 4:10's in it than it would have with 3:55's,,,,,,So the idea Ford wanted to keep the RPM down for all those German Autobahn drivers is not going to hold up, it makes no sence in a way, it must be for fuel economy because with the 470 HP in combination with 4:10's my car absolutly rocks right up thru every gear and does not struggle at all and still climbing as it went thru 135 MPH before I chickened out, but it would have kept going no problem, and I just had 3:73's two days ago and I can promiss you it would not have kept pulling thru a buck thirty five at the rate it was climbing today, Was it on this board when someone did some math and calculated these cars with stock gearing,,that if one had enough HP the 3:55's would take it to 202 MPH before red lining in sixth gear??? I heard that somewhere,,,anyone else hear that?? |
|
|
|
|
11-18-2005, 08:10 AM
|
#8 |
|
Registered User
Join Date: Nov 2004
Location: Charlotte, NC
Posts: 1,375
|
Ive heard they pull through 4th, but quickly run out of gear after that...Ive ridden in a GT with 4.10's and it made it feel a lot more powerful, but a quick highway run with a SRT-4 shut him up real quick b/c he ran out of gear
...glad your luck's turning around a little, pass some this way 
__________________
2004 Cobra HP Twin 67's 785rwhp on 9lbs of boost |
|
|
|
|
11-18-2005, 09:53 AM
|
#9 |
|
Cobra Enthusiast
Join Date: Jun 2004
Location: Clemmons, NC
SCMC#: 01143
Vehicle: 2004 Redfire Cobra
Posts: 1,582
|
Sounds like the 4.10s give a good kick and do a great job of transferring the power to the rear wheels.
My only concerns are a minor one: that the gear maxes you out too quickly thus reducing top speed (even if I was never able to try to go that fast) and what I consider to be a major concern: How do you keep tires on it for any length of time? I find it too easy to loose traction and spin the back wheels as it is and only got just under 9k miles out of the stock tires. The Khumos I replaced them with seem to be doing better but still loose traction at times and I hope to go to 315s next time around. Now I know my car is still stock so your extra power will up your top speed. However, is the tire problem common, or is it more the driver trying to get used to the car since other than our dump truck the only other manual cars I had driven were way down on power compared to this one (Escort & Subaru)?
__________________
Allan S. SCMC Marketing Director Be sure to visit our site for upcoming track events www.trackclubusa.com My SCMC event photos "A Government big enough to give you everything you want, is strong enough to take everything you have." -Thomas Jefferson |
|
|
|
|
11-18-2005, 04:11 PM
|
#10 |
|
Power by Ford/FRPP/ATS
Join Date: Oct 2004
Location: Simpsonville, SC
SCMC#: 01208
Vehicle: 2003 Terminator
Posts: 312
 |
On the street I have zero traction with 3.55s in 1rst & 2nd as it is... Without stickies on steeper gears I'd be an easy mark for just about anything
__________________
|
|
|
|
|
11-18-2005, 10:32 PM
|
#11 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
the concerns about the 4:10's working well then maxing out on a Cobra is not true,
Guess it was an issue on a GT but not on a Cobra, with the 4:10's I pull strong on the interstate all the way up, Its kind of funny because in sixth gear, with 3:55's right at 80 MPH my RPM was like 2350 and with 4:10's its only around 2700 RPM at 80 MPH. thats only 350 RPM more for all that extra pull, and I can tell you now that with 4:10's its still pulling strong in 5th gear as speed increases,,,,,,and man is that Carbon shaft sweet and steady even at a buck thirty five,,,soon as I can find a safe place im going to see how fast it will go,, Has anyone ever gone real fast?? hit me with some real numbers and RPM's |
|
|
|
|
11-19-2005, 10:26 PM
|
#12 |
|
Power by Ford/FRPP/ATS
Join Date: Oct 2004
Location: Simpsonville, SC
SCMC#: 01208
Vehicle: 2003 Terminator
Posts: 312
|
The drop of a few mpg isn't an issue for most, nor is the decreased top end (who drives 170+ ?). Smokin' the hides at the drop of the hat isn't always fun when a Honda is strollin' on by. It's nice to have the power - I'd rather put what I make to the ground. If I had 4.10s I'd lose third on the street, too.
|
|
|
|
|
11-20-2005, 01:32 AM
|
#13 |
|
Registered User
Join Date: Dec 2003
Location: Florida
Vehicle: 2003 Cobra
Posts: 479
|
Kilroy, is what your saying, that the HP your making now, is so much that your spinning tires now with 3,55's in first and maybe second, and if you went to 4,10's you would not only spin tires in those gears but also third too?
how much HP are you putting to the rear wheels now that you have this unfortuate problem? |
|
|
|
|
11-20-2005, 05:30 AM
|
#14 | ||
|
Power by Ford/FRPP/ATS
Join Date: Oct 2004
Location: Simpsonville, SC
SCMC#: 01208
Vehicle: 2003 Terminator
Posts: 312
|
Quote:
 no maybes about it. Quote:
My car by no means is king kong, but if i do anything other than roll into it - she's up in smoke. |
||
|
|
|
|
11-20-2005, 11:53 AM
|
#15 |
|
Double Snakes
Join Date: Dec 2001
Location: Asheville, NC
SCMC#: 575
Vehicle: 01 Kenny Brown Cobra S
Posts: 4,902
|
Kilroy,
I know what you mean. I run 3.73's and I think they are too much gear for my HP level. I can smoke the tires in first second and third gears. It is fun at first but having to baby the car off the line so I don't sit in one spot and spin is NOT cool. I usually give up a car or two lengths off the start, thank God I have the power to make it up!
__________________
2008 Shelby GT500 White w/Blue Stripes STOCK AND STAYING THAT WAY! Kenny Brown '01 Cobra S Serial # 01-047C True Blue Performance Forged Short Block FR500 Heads & Cams, Fluidyne Radiator McLeod Clutch and aluminum flywheel Aluminum Driveshaft, UPR adjustable clutch cable GT40 Fuel Tank & pumps, Kenne Bell Boost-a-Pump, 60lb injectors, Vortech T-Trim W/After Cooler, 2.9" RR Pulley Anderson Power Pipe, Accufab Throttle Body (USELESS IMHO), MGW Shifter with the blue handle KB Oil Cooling system, KB Differential Cooler Autometer Phantom boost and fuel pressure guages Kenny Brown Aero Kit, Kooks LT Headers H-Pipe with H-flow cats, Bassani Cat Back Snow Boost Cooler T56 Six Speed Tranny MGW BLING-BLING interior stuff 645RWHP and 558RWTQ |
|
|
|
 |
| Thread Tools | Search this Thread |
|
|
