I6 T5 vs. V8 T5 - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
» Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-18-2002, 17:16   #1 (permalink)
 
Join Date: Sep 2001
Location: Sydney, Oz
Age: 34
Posts: 2,631
I6 T5 vs. V8 T5

my main question is whether you can fit a T5 from a V8 to an I6? i've heard they are different - V8 'boxes are apparently stronger.
__________________
<p align="center"> *** just because it sells it doesn't mean it's good *** </p>
Tickford Owners Club of NSW
MrPlow2 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-18-2002, 17:29   #2 (permalink)
BSR Twin System (tm)
 
smciner1's Avatar
 
Join Date: Aug 2001
Location: The TQE (tm) Plant.
Age: 40
Posts: 4,751
V8 'boxes are apparently stronger.

I don't know if they are any stronger but they do have different ratios.
__________________
Falcon G.T. Club of Geelong Inc.
Deakin University Formula SAE Car PHANTOM ENGINEERING
LSUG (Leaf Spring Users Group) Twin System Engineer
Official BSR Website - www.bsrcorp.com
Poster of the 150,000th post!
BSR "DARTH HELMET (tm)"
Marcos Ambrose & SBR, 2003 & 2004 V8SUPERCAR Champions

****ADSLSUPERFASTP0RNPIPE (tm)****
smciner1 is offline   Reply With Quote
Old 02-18-2002, 17:30   #3 (permalink)
T5 Expert Operator
 
XR_Strider_GuY's Avatar
 
Join Date: Apr 2001
Location: 3Fb Skunk Works(JXR01 Dev)
Age: 34
Posts: 6,542
Well i think the ratio's would be different in the V8, hence suiting what ever V8 the tranny is suppose to go into. If you use a V8 T5 while mechanically it's got all the stronge bits, the ratio wouldn't suite the 6's. Thsi is what i heard about the AU that the tranny is a stronger unit in the 200kw and 220kw motors.

In EF's the XR8 and my tranny are identical apart from ratio's. Clutch is different.
__________________
Motor May 2001 Quote: "Believe it or not, there are actually a bunch of weirdos out there who reckon a six cylinder is the dux gutz. Bugger it: I'm one of them" :s5

AUII Late Ed XR6 HP T5 Venom- Full Tickford Body Kit, 17in Wheels, Herrod Bi-plane Spoiler, Momo Steer/Gear, T-Series Interior Options, Premium Stereo and a very light-tuned 4.0L I6

(FPV-Tickford Club of NSW Member and Co-Founding Member of 3FB Inc, Ford Forums Food Bandits)
XR_Strider_GuY is offline   Reply With Quote
Old 02-19-2002, 02:21   #4 (permalink)
XR9UTE
Guest
 
Posts: n/a
That's right DO NOT use an I6 T5 behind a V8. They are much weaker. The reason is partially to do with lower 1st gear on the six cyl boxes....it reduces the torque capacity enormously.

The best T5 to use is the Ford Racing parts Z-type T5. It has closer ratios(2.95 1st gear) and a stronger alloy gearset for 330lb/ft torque capacity. My mates 5.0 Capri has one. I think it cost him about $1050 U.S. which worked out to around $2500 aussie all up. I hear you saying "why not go for a Tremec 3550?"
It was a case of dimensions and weight.

Pete.
  Reply With Quote
Old 02-19-2002, 22:34   #5 (permalink)
Registered User
 
Join Date: Jan 2002
Location: Brisbane
Posts: 231
Quote:
Originally posted by EF_Falcon_GuY
Well i think the ratio's would be different in the V8, hence suiting what ever V8 the tranny is suppose to go into. If you use a V8 T5 while mechanically it's got all the stronge bits, the ratio wouldn't suite the 6's. Thsi is what i heard about the AU that the tranny is a stronger unit in the 200kw and 220kw motors.

In EF's the XR8 and my tranny are identical apart from ratio's. Clutch is different.
The V8 and I6 'boxes are essentially the same. The input shaft on the V8 box is about 30mm longer than the one on the I6, so you can't swap them around terribly easily. The extension housings are also a different length.

From what I can tell, they are both about the same 'strength'. The T5 was not used in any V8 application until it got a highish first gear, so in theory it had greater strength. Unfortunately on the T5s, most of the problems occur when 2nd and 3rd break.

XF-ED I6 T5 ratios: 3.5, 2.14, 1.39,1.00, 0.72
EF-EL I6 T5 ratios: 3.25, 1.99, 1.29, 1.00, 0.73
V8 T5 ratios: 2.95, 1.95, 1.34, 1.00, 0.73
tremec 3550 3.27, 1.98, 1.34, 1.00, 0.68

cheersbigears...
rally is offline   Reply With Quote
Old 02-19-2002, 22:44   #6 (permalink)
XR9UTE
Guest
 
Posts: n/a
Actually most aussie V8 T5's (strangely enough)have the 3.35 1st gear. This is one of the reasons they are weaker.

The I6 gearboxes are only rated to about 265 lb/ft whereas the V8's are about 295lb/ft.

Pete.
  Reply With Quote
Old 02-19-2002, 22:53   #7 (permalink)
Tickford Ruled; FPV Rocks
 
HP Dude's Avatar
 
Join Date: Sep 2001
Location: AUS
Posts: 1,457
Don't the 8 gearboxes have stronger teeth?

I was told by a bloke who worked at Ford that the HP has the standard T5, the VCT gets tougher teeth and the XR8 has the toughest teeth. Is this accurate, or have I been told crap? Im not an expert on mechanincal issues.
HP Dude is offline   Reply With Quote
Old 02-19-2002, 22:54   #8 (permalink)
Tickford Ruled; FPV Rocks
 
HP Dude's Avatar
 
Join Date: Sep 2001
Location: AUS
Posts: 1,457
Quote:
Originally posted by HP Dude
Im not an expert on mechanincal issues.
See, I can't even spell the word!!
HP Dude is offline   Reply With Quote
Old 02-19-2002, 23:09   #9 (permalink)
XR9UTE
Guest
 
Posts: n/a
Quote:
Originally posted by HP Dude
Don't the 8 gearboxes have stronger teeth?

I was told by a bloke who worked at Ford that the HP has the standard T5, the VCT gets tougher teeth and the XR8 has the toughest teeth. Is this accurate, or have I been told crap? Im not an expert on mechanincal issues.
Yes the V8 ones have stronger teeth and better bearings but if your talking 2.95 1st vs 3.35 1st, the 2.95 wins. More likely the VCT is the same as the V8 but with a lower 1st gear that isn't as tough.

Pete.
  Reply With Quote
Old 02-19-2002, 23:11   #10 (permalink)
Tickford Ruled; FPV Rocks
 
HP Dude's Avatar
 
Join Date: Sep 2001
Location: AUS
Posts: 1,457
Quote:
Originally posted by XR9UTE


Yes the V8 ones have stronger teeth and better bearings but if your talking 2.95 1st vs 3.35 1st, the 2.95 wins. More likely the VCT is the same as the V8 but with a lower 1st gear that isn't as tough.

Pete.
Thanks mate! I was wondering about the VCT box.
HP Dude is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Weight of Engine I6 vs V8 rally Inline 6 Tech 6 07-15-2003 01:00
U.S. The 1932 Ford V-8, Henry Ford's final triumph Stacy94PGT Ford Worldwide News 3 06-14-2003 04:25
EB I6 to V8 Crossmember BlownV8 Inline 6 Tech 7 05-14-2003 13:29
T5 i6 / V8 difference honer Inline 6 Tech 20 03-09-2003 01:14
BA Fairmont Ghia V8 review Go Auto sandmanls1 Australian Falcons 1 02-03-2003 22:45

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 19:59.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.