Fordmods Logo

V8 RPM's at 100k's 

 

Page 1 of 2 [ 22 posts ] Go to page 1, 2  Next

 
 Post subject: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 6:29 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 1669

Joined: 23rd Dec 2004

Gallery: 1 images

Ride: Boosted ED XR6, EBII Mont Wgn

Power: 252 rwkw

Location: Mildura
VIC, Australia

Have just recently picked up an EL Ghia 5.0L (Auto 3:45 LSD diff) for the miss's and it revs at about 2200prm's at a 100k's? just wondering if this is normal for the V8's as my 6cyl auto does about 1800rpm's at 100k's..

 

_________________

Image
[SEXYR-6] ED XR6 T5 Turbo Build
[EBW-347] EB Wagon V8 Stroker Build
FordMods Member #1761

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 6:41 pm 
Technical Contributor
Offline

Age: 66

Posts: 6815

Joined: 22nd Jun 2005

Gallery: 8 images

Ride: EF Fairmont

Location: Campbelltown
NSW, Australia

What diff is in the 6 cyl?
Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 9:56 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 1669

Joined: 23rd Dec 2004

Gallery: 1 images

Ride: Boosted ED XR6, EBII Mont Wgn

Power: 252 rwkw

Location: Mildura
VIC, Australia

Not sure yet, haven't had a chance to check it out, it's an EL Fairmont wagon, I also run a 3:45 in my manual XR6 (sedan) and it is 1900rpm @ 100k's.

I drove the V8 again tonight ( don't get to drive it much as its the miss's car) and now its at 1900rpm @ 100k's ?! i'm thinking the auto maybe playing up?

 

_________________

Image
[SEXYR-6] ED XR6 T5 Turbo Build
[EBW-347] EB Wagon V8 Stroker Build
FordMods Member #1761

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 10:17 pm 
EFI Guru
Offline

Age: 58

Posts: 4351

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Converter may have been unlocked when you looked the first time?
Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 11:09 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 1669

Joined: 23rd Dec 2004

Gallery: 1 images

Ride: Boosted ED XR6, EBII Mont Wgn

Power: 252 rwkw

Location: Mildura
VIC, Australia

its strange tho because it stayed at 2200 for about 20'ks down the road it should have been enough time for it to lock in.

 

_________________

Image
[SEXYR-6] ED XR6 T5 Turbo Build
[EBW-347] EB Wagon V8 Stroker Build
FordMods Member #1761

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 11:41 pm 
EFI Guru
Offline

Age: 58

Posts: 4351

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Sounds like it's got a problem then.
Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Tue Nov 27, 2012 11:45 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 841

Joined: 20th Feb 2010

Gallery: 2 images

Ride: AU Fairmont Ghia

Location: Elizibif Norf (Local Spelling!!)
SA, Australia

Dumb question, but you never know... Was the Econ switch on or off? And are you sure it was in the same position the 2nd time you drove it?

 

_________________

dc_todd wrote:
Cheap pads squeal like cheap hookers, and you can take that to the bank.


Au Fairmont Ghia
My (Old) 95 EF Wagon

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Wed Nov 28, 2012 8:08 am 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 1669

Joined: 23rd Dec 2004

Gallery: 1 images

Ride: Boosted ED XR6, EBII Mont Wgn

Power: 252 rwkw

Location: Mildura
VIC, Australia

both times in the economy mode :/

 

_________________

Image
[SEXYR-6] ED XR6 T5 Turbo Build
[EBW-347] EB Wagon V8 Stroker Build
FordMods Member #1761

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Wed Nov 28, 2012 11:10 am 
Tyre Shredder
Offline
User avatar

Age: 49

Posts: 391

Joined: 22nd Aug 2008

Ride: 2002 AUII Fairlane Sportsman V8

Location: Roxby Downs
SA, Australia

may have been in 3 instead of D. I've done it a few times.

Also i live right next to the highway, sometimes i just start the car & take off (no warm up), anyhow can take a little while for the auto to fully warm up & drop into final gear with OD.

I've noticed this a few times now. Nothing wrong with auto as mine is reco'ed & does it here n there. i just take my foot off the accelerator & let the revs/KM's drop a little & accelerate again. This usually fixes it.

Also my v8 fairlane AU has 3.23 diff & sits at 2000rpm when doing 100km p/h.

my now somewhat deceased I6 fairlane AU which has 3.45 final drive would sit at around 2150rpm when doing 100km p/h.

Also have a I6 EF falcon with 3.08 (i think from memory) & that does around 1800rpm @ 100km p/h. The diff could also be a high 2.something (2.93 - cant remember exactly as ive just woke up) :oops:
Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Wed Nov 28, 2012 11:33 am 
Technical Contributor
Offline
User avatar

Age: 59

Posts: 5659

Joined: 14th Jan 2005

Gallery: 10 images

Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

The TC won't stay engaged unless you have some throttle on - coasting with foot off accelerator it'll be unlocked. In the EF/EL's, as with 'D', if you have '3' selected and are in third gear, the TC will lock also.

 

_________________

96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Wed Nov 28, 2012 12:36 pm 
Fordmods Newbie
Offline

Posts: 11

Joined: 28th Dec 2009

Ride: 97 EL XR6

Location: Mareeba
QLD, Australia

sexyr6 wrote:
Not sure yet, haven't had a chance to check it out, it's an EL Fairmont wagon, I also run a 3:45 in my manual XR6 (sedan) and it is 1900rpm @ 100k's.

I drove the V8 again tonight ( don't get to drive it much as its the miss's car) and now its at 1900rpm @ 100k's ?! i'm thinking the auto maybe playing up?


Hey guys i have an EL Xr6 factory manual with its standard xr6 diff and it runs at about 2200rpm doing 100k's. From the above post, it doesn't seem like mine is right. I have a 2.5 inch full sports exhaust with 2 mufflers too and it's still hell annoying doing 100 along the highway because of all the noise. Any suggestions on how to get it to rev lower at that speed or is it normal?
Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Wed Nov 28, 2012 9:04 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 1669

Joined: 23rd Dec 2004

Gallery: 1 images

Ride: Boosted ED XR6, EBII Mont Wgn

Power: 252 rwkw

Location: Mildura
VIC, Australia

The T bar was defiantly in D position

 

_________________

Image
[SEXYR-6] ED XR6 T5 Turbo Build
[EBW-347] EB Wagon V8 Stroker Build
FordMods Member #1761

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Fri Nov 30, 2012 5:19 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 1651

Joined: 24th Nov 2005

Gallery: 12 images

Ride: DCII LTD V8

Location: Dunedin
New Zealand

I sit about 2000rpm in 5th with 3.27 rear and AU T5 at 100kmh

 

_________________

1993 LTD V8 Oregon 5 speed "click me"

Trick Flow Heads/Cam/Intake, Crane Ignition, T5Z Trans.

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Sat Dec 01, 2012 1:01 pm 
Getting Side Ways
Offline

Posts: 5503

Joined: 20th May 2005

Gallery: 11 images

Ride: EB1 Fairmont Ghia T5 Wagon

Location: Seven Hills, Sydney
NSW, Australia

95_EF_Falcon wrote:
sexyr6 wrote:
Not sure yet, haven't had a chance to check it out, it's an EL Fairmont wagon, I also run a 3:45 in my manual XR6 (sedan) and it is 1900rpm @ 100k's.

I drove the V8 again tonight ( don't get to drive it much as its the miss's car) and now its at 1900rpm @ 100k's ?! i'm thinking the auto maybe playing up?


Hey guys i have an EL Xr6 factory manual with its standard xr6 diff and it runs at about 2200rpm doing 100k's. From the above post, it doesn't seem like mine is right. I have a 2.5 inch full sports exhaust with 2 mufflers too and it's still hell annoying doing 100 along the highway because of all the noise. Any suggestions on how to get it to rev lower at that speed or is it normal?


Yours is normal.

It is a mechanical calculation based on the 5th gear, diff ratio and tyre diameter. No matter what you do to the engine performance wise it won't alter the crank revolution speed at a given road speed.

The T5 in an EL has a 5th gear ratio of 0.72 and combined with a diff ratio of 3.45 and using 205/65/15 tyres your engine rpm should be 2035@100kph and 2239@110kph.

The only way to lower the engine speed is to alter the diff ratio, which will then mean you will have slower acceleration.

Cheers
BenJ

 

_________________

BenJ's EB T5 DOHC Ghia Wagon - Current Ride
BenJ's EB GL Sedan - Previous Ride
My respect and thanks go to - snap0964, Paulmac, SWC and MRE-50L

Top
 Profile  
 
 
 Post subject: Re: V8 RPM's at 100k's
Posted: Sun Dec 02, 2012 4:29 pm 
Stock as a Rock
Offline
User avatar

Age: 35

Posts: 181

Joined: 10th Apr 2006

Gallery: 1 images

Ride: XR6 Turbo, EF 5.0L V8 Turbo

Location: melbourne
VIC, Australia

I think the OP had a issue with the tps which could cause something like this?

I had a auto tps in one of my 5.0L's... wouldn't shift up a gear until i was high in the revs..

 

_________________

EF V8T 11.54 @118mph

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 22 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 27 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Mar 28, 2024 9:47 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names