How strong is the stock rear end??

2000novigt · 04-16-2006, 12:53 AM

After having the blower installed(mods in my sig), do think that the rear end will be safe? I run 315-35-17 bfg drags. I will be going to the track to test out this new set up, but I dont wanna come home in the back of a tow truck... I do plan on getting the 31 spline rear but cant get it done for a few months, Thanks for you help!

matrixpuba · 04-16-2006, 04:20 AM

Quote:

Originally Posted by 2000novigt

After having the blower installed(mods in my sig), do think that the rear end will be safe? I run 315-35-17 bfg drags. I will be going to the track to test out this new set up, but I dont wanna come home in the back of a tow truck... I do plan on getting the 31 spline rear but cant get it done for a few months, Thanks for you help!

i know of some people that have got by on 28 spline, but it dosent last long if you get crazy on the launch. i would just take it easy out of the hole till you get your rear done.

spike_africa · 04-16-2006, 09:18 AM

its a toss up just go run it. It might break it might not. I have tons and tons of passes on a stock rear end on dr's with nitrous.

csledd · 04-16-2006, 09:48 AM

I've seen people making less power than me break the stock rear end.. only because they launched the crap out of it all the time. Like he said, take it easy for now

matrixpuba · 04-16-2006, 10:23 AM

Quote:

Originally Posted by spike_africa

its a toss up just go run it. It might break it might not. I have tons and tons of passes on a stock rear end on dr's with nitrous.

you are alot braver than i am. i did a 3200rpm drop 1 time with nitto dr and only a diablo tune. scared the crap out of me lol

csledd · 04-16-2006, 10:25 AM

I usually do a 3500rpm drop on Nittos.. not sure how that'll do since my powerband is different

spike_africa · 04-16-2006, 11:39 AM

Quote:

Originally Posted by matrixpuba

you are alot braver than i am. i did a 3200rpm drop 1 time with nitto dr and only a diablo tune. scared the crap out of me lol

you gotta go big or go home. The luanch wont really hurt the axles its when you get wheel hoop that they break, they can take some hard hits but that hop just breaks them right away. mine luanches hard and even no hope thanks to my lakewood lowers it been smooth sailing. But i have cash in reserve for a built rear should the time come.

RedFirevert04GT · 04-16-2006, 02:48 PM

At some point or another with hard launches with that kind of power, the rear end is going to give up the ghost. It might be sooner, it might be later. Rest assured it's going to happen. I would go ahead and start saving up for upgrading the halfshafts and pumpkin.

mcmmotorsports · 04-17-2006, 04:56 AM

Quote:

Originally Posted by spike_africa

you gotta go big or go home. The luanch wont really hurt the axles its when you get wheel hoop that they break, they can take some hard hits but that hop just breaks them right away. mine luanches hard and even no hope thanks to my lakewood lowers it been smooth sailing. But i have cash in reserve for a built rear should the time come.

Wow, I have never thought of this but it makes perfect sense.

MachGT · 04-17-2006, 05:49 AM

you will probably be fine, drag radials are not that hard on the rear end. I'd be more worried about hard launches with slicks

Samsstang · 04-17-2006, 07:43 AM

Quote:

Originally Posted by spike_africa

its a toss up just go run it. It might break it might not. I have tons and tons of passes on a stock rear end on dr's with nitrous.

Same here! i had my stock one for 4yrs with BFG drags before upgrading never broke! my hardest launch was probably 4-4500rpm no side stepping crap, just popping the clutch!

2000novigt · 04-17-2006, 02:42 PM

Well, I am going next week...I will launch it hard and we will see what happens. I hope it holds out... I havent had any problems on the street but then again street and strip are 2 different worlds, thats why I asked.

matrixpuba · 04-18-2006, 09:14 AM

better bring a trailer lol

brucespot · 04-22-2006, 09:03 AM

Quote:

Originally Posted by 2000novigt

Well, I am going next week...I will launch it hard and we will see what happens. I hope it holds out... I havent had any problems on the street but then again street and strip are 2 different worlds, thats why I asked.

Man I dont know but I think I get way better traction on the street than the strip. But then I dont have good tires yet. 275's are in june when I get auto inspection.

2000novigt · 05-25-2006, 06:28 PM

Well after some deley, I finally got 3 runs at the strip the 1st run was a 12.3 @116 and the second was a 12.1 @115 and the final run was a 11.9 @115. My 60's were all 1.9's...All runs were on BFG 315-35-17 drag radials. I think I can still get better times and the best part I drove it home without breaking anything!!!!!! But still wana upgrade the rear.

WaterDR · 05-25-2006, 10:03 PM

Great times! I have nearly the same setup, but no times yet.

When it comes to the rear holding up, I really think the correct way to think of it is not what kind of tires you have or how much power you are making, BUT rather what 60 foot times you have.

Think about it. 60 foot times are a function of traction and force. The lower your 60 foot, the more stress being applied to the rear. At 1.9 seconds, you are not much different the then a stock set up. Heck, I ran 2.0's when my car was n/a with 4.10's on street tires. So a car running 1.9's is not putting that much more stress on the rear then a car running 2.0's. Your best friend is tire slip when it comes to saving the rear.

DR's IMO are not much better then a good set of street tires. Slicks change everything.

matrixpuba · 05-26-2006, 01:03 PM

nice times.

dfroster · 05-26-2006, 01:12 PM

Quote:

Originally Posted by 2000novigt

After having the blower installed(mods in my sig), do think that the rear end will be safe? I run 315-35-17 bfg drags. I will be going to the track to test out this new set up, but I dont wanna come home in the back of a tow truck... I do plan on getting the 31 spline rear but cant get it done for a few months, Thanks for you help!

I worry more about the stock trans and/or clutch than the rear. The 8.8 is pretty strong for a factory FORD unit. The trans suck with added power to them.

matrixpuba · 05-26-2006, 01:15 PM

Quote:

Originally Posted by dfroster

I worry more about the stock trans and/or clutch than the rear. The 8.8 is pretty strong for a factory FORD unit. The trans suck with added power to them.

housing strong
28 spline axle and carrier, not so strong

spike_africa · 05-26-2006, 03:43 PM

Most of these guys who break axles have been in the sub 1.8 range. I think that is the breaking point. anything faster then 1.8 and it cant hold the power (the carrier or axles that is).

2000novigt · 05-27-2006, 12:42 PM

I ran 2.0's before the blower too. I was kinda dissapointed in the 1.9 60's...but my miles per hour is good enough for mid 11's (so I hear). I guess I will need to get more suspension mods. Also I think that because my car is now an auto it is not so rough on the rear anyways....

04-16-2006, 12:53 AM	#1 (permalink)
2000novigt Senior Member Join Date: Feb 2006 Location: Tri-State Area Posts: 241	How strong is the stock rear end?? After having the blower installed(mods in my sig), do think that the rear end will be safe? I run 315-35-17 bfg drags. I will be going to the track to test out this new set up, but I dont wanna come home in the back of a tow truck... I do plan on getting the 31 spline rear but cant get it done for a few months, Thanks for you help! __________________ 2000 GT Novi 2000 / 42# Injectors / Anderson Power Pipe / Vortech Mini Race Bypass Valve / Cobra Duel Fuel Pumps & Tank / Flowtech LT's / Flowtech O/R X-pipe / Flowmaster American Thunder Cat-back / BBK 75mm Throttle Body / SCT BA2400 / TFS Upper Plenum / 4.10 FRPP Gears / SCT Tuner / Autometer Boost, Fuel Pressure and Trans. Temp Gauges / Steeda Subframe Connectors / Chrome FR500's / BFG 315-35-17 Drag Radials / Built & Tuned By Kevin @Wicked Motorsports

04-16-2006, 09:18 AM	#3 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,339	its a toss up just go run it. It might break it might not. I have tons and tons of passes on a stock rear end on dr's with nitrous. __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

04-16-2006, 09:48 AM	#4 (permalink)
csledd DSG!!! Join Date: Feb 2005 Location: Paducah, KY Posts: 3,074	I've seen people making less power than me break the stock rear end.. only because they launched the crap out of it all the time. Like he said, take it easy for now __________________ CAP DSG Registry 2003 Mustang GT - daily driven check out my cardomain for more info 296 rwhp / 310 rwtq Money spent @ AM: $4623.20 1984 Mustang Hatch - low budget project

04-16-2006, 10:25 AM	#6 (permalink)
csledd DSG!!! Join Date: Feb 2005 Location: Paducah, KY Posts: 3,074	I usually do a 3500rpm drop on Nittos.. not sure how that'll do since my powerband is different __________________ CAP DSG Registry 2003 Mustang GT - daily driven check out my cardomain for more info 296 rwhp / 310 rwtq Money spent @ AM: $4623.20 1984 Mustang Hatch - low budget project

04-16-2006, 02:48 PM	#8 (permalink)
RedFirevert04GT Senior Member Join Date: Jan 2006 Location: Va Beach, Va Posts: 336	At some point or another with hard launches with that kind of power, the rear end is going to give up the ghost. It might be sooner, it might be later. Rest assured it's going to happen. I would go ahead and start saving up for upgrading the halfshafts and pumpkin. __________________ '04 Red Fire vert. KB 1.7L intercooled 9lb with all the trimmin's & Big Boost kit w/ Switch Chip. Mac catted h-pipe & Mac catback. 411RWHP / 414 RWTQ.

04-17-2006, 02:42 PM	#12 (permalink)
2000novigt Senior Member Join Date: Feb 2006 Location: Tri-State Area Posts: 241	Well, I am going next week...I will launch it hard and we will see what happens. I hope it holds out... I havent had any problems on the street but then again street and strip are 2 different worlds, thats why I asked. __________________ 2000 GT Novi 2000 / 42# Injectors / Anderson Power Pipe / Vortech Mini Race Bypass Valve / Cobra Duel Fuel Pumps & Tank / Flowtech LT's / Flowtech O/R X-pipe / Flowmaster American Thunder Cat-back / BBK 75mm Throttle Body / SCT BA2400 / TFS Upper Plenum / 4.10 FRPP Gears / SCT Tuner / Autometer Boost, Fuel Pressure and Trans. Temp Gauges / Steeda Subframe Connectors / Chrome FR500's / BFG 315-35-17 Drag Radials / Built & Tuned By Kevin @Wicked Motorsports

04-18-2006, 09:14 AM	#13 (permalink)
matrixpuba Senior Member Join Date: Feb 2006 Location: tennessee Posts: 1,103	better bring a trailer lol

05-25-2006, 06:28 PM	#15 (permalink)
2000novigt Senior Member Join Date: Feb 2006 Location: Tri-State Area Posts: 241	Well after some deley, I finally got 3 runs at the strip the 1st run was a 12.3 @116 and the second was a 12.1 @115 and the final run was a 11.9 @115. My 60's were all 1.9's...All runs were on BFG 315-35-17 drag radials. I think I can still get better times and the best part I drove it home without breaking anything!!!!!! But still wana upgrade the rear. __________________ 2000 GT Novi 2000 / 42# Injectors / Anderson Power Pipe / Vortech Mini Race Bypass Valve / Cobra Duel Fuel Pumps & Tank / Flowtech LT's / Flowtech O/R X-pipe / Flowmaster American Thunder Cat-back / BBK 75mm Throttle Body / SCT BA2400 / TFS Upper Plenum / 4.10 FRPP Gears / SCT Tuner / Autometer Boost, Fuel Pressure and Trans. Temp Gauges / Steeda Subframe Connectors / Chrome FR500's / BFG 315-35-17 Drag Radials / Built & Tuned By Kevin @Wicked Motorsports

05-25-2006, 10:03 PM	#16 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,374	Great times! I have nearly the same setup, but no times yet. When it comes to the rear holding up, I really think the correct way to think of it is not what kind of tires you have or how much power you are making, BUT rather what 60 foot times you have. Think about it. 60 foot times are a function of traction and force. The lower your 60 foot, the more stress being applied to the rear. At 1.9 seconds, you are not much different the then a stock set up. Heck, I ran 2.0's when my car was n/a with 4.10's on street tires. So a car running 1.9's is not putting that much more stress on the rear then a car running 2.0's. Your best friend is tire slip when it comes to saving the rear. DR's IMO are not much better then a good set of street tires. Slicks change everything. __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

05-26-2006, 01:03 PM	#17 (permalink)
matrixpuba Senior Member Join Date: Feb 2006 Location: tennessee Posts: 1,103	nice times. __________________ pics->http://www.modularpowerhouse.com/for...?do=view&g=158 vid at idle->http://smg.photobucket.com/albums/v2...t=5ab47c14.flv

05-26-2006, 03:43 PM	#20 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,339	Most of these guys who break axles have been in the sub 1.8 range. I think that is the breaking point. anything faster then 1.8 and it cant hold the power (the carrier or axles that is). __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

05-27-2006, 12:42 PM	#21 (permalink)
2000novigt Senior Member Join Date: Feb 2006 Location: Tri-State Area Posts: 241	I ran 2.0's before the blower too. I was kinda dissapointed in the 1.9 60's...but my miles per hour is good enough for mid 11's (so I hear). I guess I will need to get more suspension mods. Also I think that because my car is now an auto it is not so rough on the rear anyways.... __________________ 2000 GT Novi 2000 / 42# Injectors / Anderson Power Pipe / Vortech Mini Race Bypass Valve / Cobra Duel Fuel Pumps & Tank / Flowtech LT's / Flowtech O/R X-pipe / Flowmaster American Thunder Cat-back / BBK 75mm Throttle Body / SCT BA2400 / TFS Upper Plenum / 4.10 FRPP Gears / SCT Tuner / Autometer Boost, Fuel Pressure and Trans. Temp Gauges / Steeda Subframe Connectors / Chrome FR500's / BFG 315-35-17 Drag Radials / Built & Tuned By Kevin @Wicked Motorsports

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