Switching from IRS to Solid Axle?

nutnbutcustm · September 20th, 2009, 12:13 AM

What should i go with? im gonna pull the irs out of the cobra and go with a solid axle. im approaching 700hp now and i plan on switching out to a mammouth and should be well over 800 to the wheels so im scared im gonna absolutely anhialate the irs. but will a well built 8.8 hold up either? i was thinking about an 8.8 with 36 spline axles and 4.10's as well as an lsd.

any opinions?

nutnbutcustm · September 20th, 2009, 12:41 AM

noone has an opinion at all?

woohoo 100 posts!!!!

BoostFiend · September 20th, 2009, 12:52 AM

CHeck these guys out. Pretty spendy but the have some damn good stuff.

DTS - Drive Train Specialists

You could go built solid or just build the IRS unless you are set on a SRA.

nutnbutcustm · September 20th, 2009, 01:01 AM

yeah i have a company here called pyle brothers that can build me a very nice unit. i would build my irs but its the 01' irs not the 03'-04' so to me its really not worth it.

BoostFiend · September 20th, 2009, 01:06 AM

Strange Engineering Strange also has some really good stuff. If you ahve the '01 IRS swap to solid for sure.

99cobra! · September 20th, 2009, 09:57 AM

I did the swap, holds up nice at the track. I used an eaton lsd, moser 31 spline axles and 4:10s. Also put some aftermarket upper and lower control arms.

nutnbutcustm · September 21st, 2009, 03:26 PM

ok so i finally got it running good but when i really get on it it feels like the rear end is walking on me? 1st gear is pretty useless it spins through,2nd grabs and goes but when i shift to 3rd and get to the mid rpm range it feels like the rear end is gonna literally come out from under the car!!! is this the weak rear end?

acidtonic · September 22nd, 2009, 12:25 AM

I'll trade you my solid 8.8

I have been looking pretty hard the past few weeks for someone wanting to swap. I'm sick of the solid for my purposes. I want a nice cruiser.

You're in Texas but if you ever want to swap lets arrange a trip to Michigan

nutnbutcustm · September 22nd, 2009, 01:28 PM

Originally Posted by acidtonic

I'll trade you my solid 8.8

I have been looking pretty hard the past few weeks for someone wanting to swap. I'm sick of the solid for my purposes. I want a nice cruiser.

You're in Texas but if you ever want to swap lets arrange a trip to Michigan

if you were local i would do it in a heartbeat

,but with a wife and 2 kids that depend on me daily i dont think a roadtrip to michigan will go over very well

but if you want to work something ou on shipping......

......lmk.

acidtonic · September 22nd, 2009, 03:29 PM

Originally Posted by nutnbutcustm

if you were local i would do it in a heartbeat,but with a wife and 2 kids that depend on me daily i dont think a roadtrip to michigan will go over very well

but if you want to work something ou on shipping...... ......lmk.

I figured since it was a shot in the dark

Which year is it? 01 or 03/04? What would you want for it? Shipping is roughly 300 or so on top to get it here. You'd probably pay the same for getting mine there.

Probably not worth it but if you can ever get up this way for a weekend we could knock it out.

nutnbutcustm · September 23rd, 2009, 12:50 AM

Originally Posted by acidtonic

I figured since it was a shot in the dark

Which year is it? 01 or 03/04? What would you want for it? Shipping is roughly 300 or so on top to get it here. You'd probably pay the same for getting mine there.

Probably not worth it but if you can ever get up this way for a weekend we could knock it out.

its the 01' the one out of the termi i swapped the drivetrain out of was in bad shape.

and another question everyone is telling me to stick with 3:55 gears instead of 3:73's or 4:10's any suggestions on this???

ReverendDexter · September 23rd, 2009, 12:52 AM

Originally Posted by nutnbutcustm

its the 01' the one out of the termi i swapped the drivetrain out of was in bad shape.

and another question everyone is telling me to stick with 3:55 gears instead of 3:73's or 4:10's any suggestions on this???

With that much power, I wouldn't go to lower gears. You'll just start having traction problems.

BoostFiend · September 23rd, 2009, 02:23 AM

At most go with 3.73's. Anything more is overkill with the T-56 IMO.

nutnbutcustm · September 23rd, 2009, 02:36 PM

Originally Posted by BoostFiend

At most go with 3.73's. Anything more is overkill with the T-56 IMO.

so i should just stick with the 3:55's? because i already have traction issues with the 3:55's and drag radials!

99blkcobra · September 23rd, 2009, 05:30 PM

Originally Posted by nutnbutcustm

if you were local i would do it in a heartbeat,but with a wife and 2 kids that depend on me daily i dont think a roadtrip to michigan will go over very well

but if you want to work something ou on shipping...... ......lmk.

ill go to you only if we swap engines too

i really dont feel a big difference between the solid axle and the irs??? just more grip with the solid

nutnbutcustm · September 24th, 2009, 12:22 AM

Originally Posted by 99blkcobra

ill go to you only if we swap engines too

i really dont feel a big difference between the solid axle and the irs??? just more grip with the solid

as tempting as that is (cough,cough) i will have to pass

im just worried about breakage.

Safi · September 24th, 2009, 12:25 AM

If only I had an 8.8 to trade you...I would love to put IRS in my sixxer

Smoothgrandmama · September 24th, 2009, 07:48 AM

7.5 Are stronger anyways silly! lol

SWEET2KSTANG · September 24th, 2009, 10:36 AM

a built 8.8 is very very stout! a properly built 31 spline set up will hold more than that 800rwhp.

Mustang RacR94 · September 24th, 2009, 08:48 PM

I have a 8.8 solid axle from my 94 ill trade ya

September 20th, 2009, 12:13 AM	#1
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	Switching from IRS to Solid Axle? What should i go with? im gonna pull the irs out of the cobra and go with a solid axle. im approaching 700hp now and i plan on switching out to a mammouth and should be well over 800 to the wheels so im scared im gonna absolutely anhialate the irs. but will a well built 8.8 hold up either? i was thinking about an 8.8 with 36 spline axles and 4.10's as well as an lsd. any opinions? __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 20th, 2009, 12:41 AM	#2
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	noone has an opinion at all? woohoo 100 posts!!!! __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 20th, 2009, 12:52 AM	#3
BoostFiend Regular '03 Cobra, '89 +'91 Notch 11.63@120.08, Cobra Join Date: Oct 2008 Location: Oregon Posts: 341 iTrader: 0 reviews	CHeck these guys out. Pretty spendy but the have some damn good stuff. DTS - Drive Train Specialists You could go built solid or just build the IRS unless you are set on a SRA. __________________

September 20th, 2009, 01:01 AM	#4
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	yeah i have a company here called pyle brothers that can build me a very nice unit. i would build my irs but its the 01' irs not the 03'-04' so to me its really not worth it. __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 20th, 2009, 01:06 AM	#5
BoostFiend Regular '03 Cobra, '89 +'91 Notch 11.63@120.08, Cobra Join Date: Oct 2008 Location: Oregon Posts: 341 iTrader: 0 reviews	Strange Engineering Strange also has some really good stuff. If you ahve the '01 IRS swap to solid for sure. __________________

September 20th, 2009, 09:57 AM	#6
99cobra! Regular 1999 Mustang Cobra Not Yet Join Date: Oct 2008 Location: North Carolina Posts: 256 iTrader: 0 reviews	I did the swap, holds up nice at the track. I used an eaton lsd, moser 31 spline axles and 4:10s. Also put some aftermarket upper and lower control arms. __________________ MM COBRA CLUB #19 "Real cars aren't powered by their front wheels, they lift them"

September 21st, 2009, 03:26 PM	#7
nutnbutcustm Regular 2001 Cobra/03'termi swap ...@..... Join Date: Sep 2007 Location: Houston,TX Posts: 169 iTrader: 0 reviews	ok so i finally got it running good but when i really get on it it feels like the rear end is walking on me? 1st gear is pretty useless it spins through,2nd grabs and goes but when i shift to 3rd and get to the mid rpm range it feels like the rear end is gonna literally come out from under the car!!! is this the weak rear end? __________________ Termi swap,6spd,Spec 3 clutch,Steigmeir stage 3 ported blower,Big Moroso heat exchanger,ported heads,Sean Hyland CAMS,Billetflow 2.76 pulley,JLT power pipe,injectors,rails,full Magnaflow exhaust,Longtubes.

September 22nd, 2009, 12:25 AM	#8
acidtonic Hardcore Enthusiast 97 Cobra Join Date: May 2008 Location: Royal Oak Michigan Posts: 1,056 iTrader: 0 reviews	I'll trade you my solid 8.8 I have been looking pretty hard the past few weeks for someone wanting to swap. I'm sick of the solid for my purposes. I want a nice cruiser. You're in Texas but if you ever want to swap lets arrange a trip to Michigan __________________ Converted to the Dark Side. 06 Apex Silver Evolution IX GSR - Turboback Exhaust, Tune - Wideband O2, Trustz backlight gauges, Apexi turbo timer - Stock wing, but soon to be wingless. - Guessing 280-310 at the wheels. 02 Red Escape V6 4x4

September 23rd, 2009, 02:23 AM	#13
BoostFiend Regular '03 Cobra, '89 +'91 Notch 11.63@120.08, Cobra Join Date: Oct 2008 Location: Oregon Posts: 341 iTrader: 0 reviews	At most go with 3.73's. Anything more is overkill with the T-56 IMO. __________________

September 24th, 2009, 07:48 AM	#18
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,135 iTrader: 6 reviews	7.5 Are stronger anyways silly! lol __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

September 24th, 2009, 10:36 AM	#19
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	a built 8.8 is very very stout! a properly built 31 spline set up will hold more than that 800rwhp. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

September 24th, 2009, 08:48 PM	#20
Mustang RacR94 MM Fanatic 99 cobra N/A Join Date: Dec 2006 Location: Fayetteville NC Posts: 3,169 iTrader: 0 reviews	I have a 8.8 solid axle from my 94 ill trade ya __________________ 99 Cobra 03 Cobra motor AFCO H/E Pulley JLT CAI BBK L/T off road H/steeda catback SCT MAF Tune 03 cobra pumps HVGC

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