Welcome to Mustang Evolution.
|
  |
|
|
|
08-24-2005, 11:43 PM
|
#1
|
|
  |
|
Gear and axle swap questions.
|
|
Teh TC6!
Join Date: Aug 2005
City: Athens
State: Alabama
Posts: 3,951
|
I'm going to hopefully start getting things together to start my turbo project about this time next year and wanted to get a few things I'll need in advance...
I have an automatic and I know it's recommended to get the next size gears up over a manual (3.73 for manual, 4.10 for automatic) but I've also heard that if your gear ratio is fairly high, once you turbo or supercharge your car, that you'll run out of gear at top end. I also don't like how bigger gears lower your top speed, so I've been considering just getting 3.55 gears because I want a little bang just from that and I want to plan ahead for the turbo. So, I guess what I'm asking for is everyone's input on what gear size I should get. Also, I plan on about 350 hp, maybe a little less, and wonder if I'll need to get an 8.8 axle for it or if a T-Lock would be good enough.
Additionally, I've seen on ebay and in magazines a "Ring and pinion set" and wonder if this all I would need to do the gear swap,(btw I have a SCT tuner and wonder if that would work to fix the speedo) and if not please tell me what else I'll need. As for the axle I've seen the 2 axle pieces on ebay for pretty cheap and wonder if just those 2 pieces is all I need for that, or if I need anything for the differential or..er..I really have no idea on that!?
Thanks in advace.
__________________
Click the sig for a complete list of mods and pics.
Bewst!? 
|
|
|
|
 
|
08-25-2005, 07:23 AM
|
#2
|
|
|
|
Re: Gear and axle swap questions.
|
|
postarama
Join Date: Aug 2003
City: Jackson
State: Mississippi
Posts: 24,136
|
If you are going to turbo, go ahead and jump up to the the 8.8 rear and 3.55's in that. The stock one might handle it, but it would be well worth the cost after you look at how much gears and a t-lok are just for the 7.5. When you change the gears, I believe you'll be able to fix the speedo using the SCT tuner. And also, when you look around for an 8.8....just buy one that already has axles on it.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
|
|
|
|
|
|
08-25-2005, 07:36 AM
|
#3
|
|
|
|
Re: Gear and axle swap questions.
|
|
Cammed Baby!
Join Date: May 2003
City: Chicago 'Burbs
State: Illinois
Posts: 1,712
|
Yes his SCT tuner will make the change for different gears.
__________________
2003 SVT Lightning #1059 of 4270
2000 Vert 4R70W
|
|
|
|
|
|
08-25-2005, 08:38 AM
|
#4
|
|
|
|
Re: Gear and axle swap questions.
|
|
I liek gramer
Join Date: Jan 2004
City: Birmingham
State: Alabama
Posts: 19,163
|
Sweeeeeet. A turbo project in AL near me. 
__________________
Delta Sigma Phi - building better men since 1899
|
|
|
|
|
|
08-25-2005, 01:36 PM
|
#5
|
|
|
|
Re: Gear and axle swap questions.
|
|
I can has Mustang?
Join Date: May 2003
City: Huntsville
State: Alabama
Posts: 26,862
|
Go with 3.73 atleast not 3.55
__________________
|
|
|
|
|
|
08-25-2005, 09:41 PM
|
#6
|
|
|
|
Re: Gear and axle swap questions.
|
|
Registered User
Join Date: May 2003
City: Bham
State: Alabama
Posts: 322
|
ye im blown and im goin 4.10s
__________________
http://i23.photobucket.com/albums/b3.../99stangz2.jpg
Suspension: Bullitt 8.8, Steeda G Trac Bar, Front and Rear swaybar delete, Lakewood 90/10 Struts, Lakewood 50/50 Shocks, UPR Pro-Series Ultra-Light Weight Competition LCA
Performance: Vortech V1, Mac Long Tube Headers, Mac O/R H pipe, 80MM Lightning MAF, GT Take offs Tuned By Doug at Bamachips, 4.10s
Interior: Autometer Phantom gauges Boost, Water Temp, A/F, Dual pillar gauge Pod, Gagueg Bezel,
Styling: Mach 1 Grill Delete Kit, GT hood scoop, Smoked Headlight and Taillight blackouts, taillight sequencers kit
|
|
|
|
|
|
08-25-2005, 11:03 PM
|
#7
|
|
|
|
Re: Gear and axle swap questions.
|
|
Teh TC6!
Join Date: Aug 2005
City: Athens
State: Alabama
Posts: 3,951
|
Don't you end up running out of gear at topend tho? And I don't like how bigger gears lower top speed  ...um...and I've even heard that the stock gears will do just fine...I'm confused..I don't know what to do... WWWAAAHHH!!!!
__________________
Click the sig for a complete list of mods and pics.
Bewst!?
|
|
|
|
|
|
08-27-2005, 01:30 AM
|
#8
|
|
|
|
Re: Gear and axle swap questions.
|
|
postarama
Join Date: Aug 2003
City: Jackson
State: Mississippi
Posts: 24,136
|
How built is your car gonna be? If you are just adding a litte bit of power, 4.10's or 3.73's will do you best. There's really no reason to be running over 120 anyway...not like you're gonna top that in the quarter anytime soon. If you're gonna be pushing like 450 or more hp....yes...I would recommend going with a lower gear such as the stocks or something around that.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
|
|
|
|
|
|
08-27-2005, 11:21 AM
|
#9
|
|
|
|
Re: Gear and axle swap questions.
|
|
Banned
Join Date: Jun 2003
City: Severn, MD
State: Maryland
Posts: 3,920
|
i have a turbo thunderbird, came factory with 3.55's, and ive had the car up to about 135, plenty of RPMs left, still pulling
go ahead and get some 3.73's in it, you wont run out of gear untill probably 135-140, and most street cars never see those speeds
as for your turbo setup, what size turbo(s) do you plan on running?
|
|
|
|
|
|
08-27-2005, 02:41 PM
|
#10
|
|
|
|
Re: Gear and axle swap questions.
|
|
WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 26,868
|
You should come down sometime, in in Rogersville/killen alabama which is like 20 min from athens....
I also know some VERY good mechanics in the area if you need any help or a second opinion on labor prices.
As far as gears I would go 3.73 gears, that should be fine. You can buy a 8.8 rear with the gears ready to go, minus axles. The cost has went up, as it was 725... not its more but still worth it. Building a 7.5 is fine but when you turbo it.... it will break soon. I can also help you install it, if im free.. its an easy install really just takes a little time.
Its better to spend the mony on an 8.8 than to rebuild the 7.5 a couple times, and a gear install is pricy and can be done bad (but for local people I know a very good installer that does it for under 200 bucks )
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
Polished Borla Stingers, MGW Shifter, JLT CAI, SS Inserts, MM FLSFC, MM CC Plates,
10th Anniv Brakes, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
|
|
|
|
|
|
08-30-2005, 12:28 PM
|
#11
|
|
|
|
Re: Gear and axle swap questions.
|
|
Teh TC6!
Join Date: Aug 2005
City: Athens
State: Alabama
Posts: 3,951
|
Sweet, I could definately use your help on this.  I know Rogersville pretty well, used to live off of Snake road, and I clean a pool out in Elgin. I'll definately need to throw a bunch of questions at you about where to get stuff done and just personal opinion on stuff.
I'm planning on 350rwhp with the turbo, and a final number when all is said at 400rwhp. The set up I want is the race kit w/intercooler at tmaturbo.com
__________________
Click the sig for a complete list of mods and pics.
Bewst!?
|
|
|
|
|
|
08-30-2005, 04:18 PM
|
#12
|
|
|
|
Re: Gear and axle swap questions.
|
|
WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 26,868
|
Buy a ready to install 8.8 with 3.73s (minus axles and brakes is ok)
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
Polished Borla Stingers, MGW Shifter, JLT CAI, SS Inserts, MM FLSFC, MM CC Plates,
10th Anniv Brakes, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
|
|
|
|
|
|
09-04-2005, 11:43 AM
|
#13
|
|
|
|
Re: Gear and axle swap questions.
|
|
McLovin?
Join Date: Jun 2004
City: Atlanta/Chattanooga
State: Georgia
Posts: 3,676
|
just look at the 00 cobra r..it has 3.55's, 375hp, and tops out at a little over 175mph...so 3.73's would probly be better unless you plan on doing 170 often 
__________________
2000 White 3.8L 5speed with Custom True Dual Exhaust, K&N FIPK II air intake, Steeda Tri-ax, 2000 Cobra R's in 275/35/18 Summitomo's, Sequential Taillights...
also, 2001 ZX6R by Kawasaki
|
|
|
|
|
|
09-05-2005, 06:48 AM
|
#14
|
|
|
|
Re: Gear and axle swap questions.
|
|
postarama
Join Date: Aug 2003
City: Jackson
State: Mississippi
Posts: 24,136
|
It also has a 6 speed tranny which makes a difference.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
|
|
|
|
|
|
09-05-2005, 10:04 PM
|
#15
|
|
|
|
Re: Gear and axle swap questions.
|
|
Teh TC6!
Join Date: Aug 2005
City: Athens
State: Alabama
Posts: 3,951
|
__________________
Click the sig for a complete list of mods and pics.
Bewst!?
|
|
|
|
|
|
09-07-2005, 03:18 AM
|
#16
|
|
|
|
Re: Gear and axle swap questions.
|
|
I can has Mustang?
Join Date: May 2003
City: Huntsville
State: Alabama
Posts: 26,862
|
3.73 will be fine.
You building up the engine or just slapping something on? Cause if your just slapping it on you better plan for a engine rebuild soon, and you better get it dyno tuned
__________________
|
|
|
|
|
|
