T5 vs 347 and NOS

Scrapla · 10-31-2003, 11:47 AM

I have a 90gt and from what I read its the world class T5 that came with my car, its been partially rebuilt once just a few syncros replaced and my 347 is in the works so im thinkin about tranny upgrades and a scatter sheild anyone know a good bullet proof bell housing that will bolt on and what should I look to spend and also whats the most power these T5's can handle I have a king cobra, steel bearing retainer installed and adj cable and everythings been great and my engine is gonna be a mild 347 not a race car so can I get away with the t5 for a while?

GhOsT6_9 · 11-01-2003, 04:58 PM

The T-5 should hold up for a while., just don't beat the crap out of it with the 347. I'd stay away from drag racing till you can get a better tranny, such as a Tremec.

Your tranny should be a regular T-5, not a WC T-5. I thought the WC T-5 only came in the cobras or from the aftermarket, but I could be wrong.

For bell housings, there are tons of them out there for the T-5. But if you plan on getting a better tranny, like the Tremec, you may need another bell housing since the Tremec won't bolt up like the standard T-5. So decide what tranny you want to run then get the proper bell housing.

LX5liter · 11-02-2003, 12:05 PM

Sometimes it all depends on the tranny, I've heard of people blowing them up with relative ease, and others who can't seem to kill them. I know my car still has the original un-touched t-5 and it hasn't skipped a beat yet, but I don't powershift when I'm drag racing. ( if I did I think I would be in the 11's fairly easily

) But I do leave the line at 4700 rpm with a bit of air under the drivers side tire. I did break an axle my last time out though. With the new engine going in this winter it will be interesting to see what happens to it next season

. I wouldn't worry too much about yor tranny right now. Axles though.......

Scrapla · 11-02-2003, 12:25 PM

When I had my gears installed not to long ago I had an axle replaced and the other was in good shape, but whats a good axle upgrade just a new stock replacment or aftermarket and what should I look to spend?

Dave_mustang_50 · 11-02-2003, 12:58 PM

I personally would worry more about the tranny than the axles Unless you are gonna run slicks. The tires will spin before you break axles. My t-5 lasted 2 years when the car was making just over 300 rwhp. I believe not powershifting was a major factor. Both areas are good to upgrade though. But if you do change out the axles, what about rear disc brakes, and 5 lug conversion and new wheels to plant the power.

Scrapla · 11-02-2003, 06:10 PM

I wasnt thinkin about slicks, maybe and thats a big maybe some street slicks but its just gonna be a quick crusing car besides I baby my car and rarley beat on it and never powershift , until I can get a daily driver cause I dont wanna be stuck

LX5liter · 11-03-2003, 12:48 PM

If you are going to upgrade the axles go with a good aftermarket one (Moser or Strange). If you even run drag radials or ET streets you still run the risk of breakage.I never run slicks either but I still broke an axle.

bottlebaby91 · 11-04-2003, 10:10 PM

Leave your stock axles in there until the break. Launch on slicks. And powershift the best you can! I have been running my t-5 and stock axles for 2 years now. I launch at 5,000 on slicks. My motor makes just over 350 at the wheels and I am running a 150 shot of spray. I powershift with the best of them and my tranny needs new synchros yes, but I put those in every 2-3 years wether they are bad or not. The tremecs are not worth the moeny I don't think. A buddy of mine is using one in his 10sec car, and he puts new synchros in every 2 years also. The tremecs shift sloppy & crappy too.

LX5liter · 11-05-2003, 12:01 PM

Quote:

Originally posted by bottlebaby91
Leave your stock axles in there until the break. Launch on slicks. And powershift the best you can!

So what happens when you're axle breaks in the 2-3 shift at 60+ mph? Lots of damage as the axle comes out of the housing and your car rides on drum and body parts for a while, and who knows where the tire and axle are going. If your lucky, it snaps at the starting line and you don't go anywhere, but some people don't have that kind of luck.I ran my stock axles for two seasons as well, and I broke one on the last race of this year. I still recommend a good aftermarket axles and c-clip eliminators. Cheap insurance when you look at the possible damages.

bottlebaby91 · 11-05-2003, 09:05 PM

I was being a little sarcastic when I posted that. It does suck when the axle breaks, but it will almost always happen at launch which is why it doesnt scare me to brake axles. It is in your best interest to purchase c-clip elims. and good axles though.

10-31-2003, 11:47 AM	#1
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	T5 vs 347 and NOS I have a 90gt and from what I read its the world class T5 that came with my car, its been partially rebuilt once just a few syncros replaced and my 347 is in the works so im thinkin about tranny upgrades and a scatter sheild anyone know a good bullet proof bell housing that will bolt on and what should I look to spend and also whats the most power these T5's can handle I have a king cobra, steel bearing retainer installed and adj cable and everythings been great and my engine is gonna be a mild 347 not a race car so can I get away with the t5 for a while? __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

11-01-2003, 04:58 PM	#2
GhOsT6_9 Registered Member Join Date: May 2000 Location: Ontario,Canada Posts: 233	The T-5 should hold up for a while., just don't beat the crap out of it with the 347. I'd stay away from drag racing till you can get a better tranny, such as a Tremec. Your tranny should be a regular T-5, not a WC T-5. I thought the WC T-5 only came in the cobras or from the aftermarket, but I could be wrong. For bell housings, there are tons of them out there for the T-5. But if you plan on getting a better tranny, like the Tremec, you may need another bell housing since the Tremec won't bolt up like the standard T-5. So decide what tranny you want to run then get the proper bell housing. __________________ 1989 Mustang LX Notch 5.0L, T-5, 1969 351W heads, cut & welded stock plenum, F-303 cam, Mac 1 5/8 full length headers, Cat'd H-pipe, 3.73 gears, Underdrives, SSM lift bars, E-Fan, 3G Alt, Custom Chip, Autometer gauges, Weld Draglite wheels , M/T ET Street Radials Best 1/4: 13.33@101.53MPH

11-02-2003, 12:05 PM	#3
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	Sometimes it all depends on the tranny, I've heard of people blowing them up with relative ease, and others who can't seem to kill them. I know my car still has the original un-touched t-5 and it hasn't skipped a beat yet, but I don't powershift when I'm drag racing. ( if I did I think I would be in the 11's fairly easily ) But I do leave the line at 4700 rpm with a bit of air under the drivers side tire. I did break an axle my last time out though. With the new engine going in this winter it will be interesting to see what happens to it next season . I wouldn't worry too much about yor tranny right now. Axles though....... __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

11-02-2003, 12:25 PM	#4
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	When I had my gears installed not to long ago I had an axle replaced and the other was in good shape, but whats a good axle upgrade just a new stock replacment or aftermarket and what should I look to spend? __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

11-02-2003, 12:58 PM	#5
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	I personally would worry more about the tranny than the axles Unless you are gonna run slicks. The tires will spin before you break axles. My t-5 lasted 2 years when the car was making just over 300 rwhp. I believe not powershifting was a major factor. Both areas are good to upgrade though. But if you do change out the axles, what about rear disc brakes, and 5 lug conversion and new wheels to plant the power. __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.

11-02-2003, 06:10 PM	#6
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	I wasnt thinkin about slicks, maybe and thats a big maybe some street slicks but its just gonna be a quick crusing car besides I baby my car and rarley beat on it and never powershift , until I can get a daily driver cause I dont wanna be stuck __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

11-03-2003, 12:48 PM	#7
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	If you are going to upgrade the axles go with a good aftermarket one (Moser or Strange). If you even run drag radials or ET streets you still run the risk of breakage.I never run slicks either but I still broke an axle. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

11-04-2003, 10:10 PM	#8
bottlebaby91 Registered Member Join Date: Nov 2002 Posts: 141	Leave your stock axles in there until the break. Launch on slicks. And powershift the best you can! I have been running my t-5 and stock axles for 2 years now. I launch at 5,000 on slicks. My motor makes just over 350 at the wheels and I am running a 150 shot of spray. I powershift with the best of them and my tranny needs new synchros yes, but I put those in every 2-3 years wether they are bad or not. The tremecs are not worth the moeny I don't think. A buddy of mine is using one in his 10sec car, and he puts new synchros in every 2 years also. The tremecs shift sloppy & crappy too.

11-05-2003, 09:05 PM	#10
bottlebaby91 Registered Member Join Date: Nov 2002 Posts: 141	I was being a little sarcastic when I posted that. It does suck when the axle breaks, but it will almost always happen at launch which is why it doesnt scare me to brake axles. It is in your best interest to purchase c-clip elims. and good axles though.