Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 07-28-2010, 08:19 AM
1bad67sbf's Avatar
1bad67sbf 1bad67sbf is offline
Posting Guru
 
Join Date: Mar 2010
Location: northern va
Posts: 1,172
1bad67sbf is starting off with a positive reputation.
1994 5.8

can anyone tell me some ups and downs of this motor? is it a roller cam motor and what was the factory hp and tq ballpark. are thier any problem areas with them or mild mods to help them thanks. its in a 94 f250 4x4
__________________
2007 f150 crew w/ edelbrock cat back, specter intake, edge evolution, billet emblems, 2.5 HBS level kit, vision wheels, 35in hankooks
1967 ford mustang conv,302 with edelbrock top end and a big pile of parts
1992 mustang 5.0 GT, lunati cam, edelbrock rpm intake, full exhaust and alot more
2000 Harley fatboy #4 of 125 custom flame HD paint, upgraded carb, exhaust, cams, ignition and a ton of chrome
Reply With Quote
  #2 (permalink)  
Old 07-28-2010, 09:14 AM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,070
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
Yes it's a roller motor and it was factory rated at 200hp/310tq. Best upgrades are a complete exhaust system including headers and a cam change(5.0HO cam with 1.7 roller rockers), ignition upgrade and a timing bump.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
  #3 (permalink)  
Old 07-28-2010, 09:24 AM
1bad67sbf's Avatar
1bad67sbf 1bad67sbf is offline
Posting Guru
 
Join Date: Mar 2010
Location: northern va
Posts: 1,172
1bad67sbf is starting off with a positive reputation.
thanks it already has headers and full exhaust, my brother bought it yesterday and we dont know what it has done to the motor but he said it will spin the 33s into 3rd w/ a 5 spd so im thinking it may have gears due to the idle is very smooth and sounds like a stock motor. what parts of the ignition would you change? i told him to do a tune up so that would be the time to upgrade stuff.
__________________
2007 f150 crew w/ edelbrock cat back, specter intake, edge evolution, billet emblems, 2.5 HBS level kit, vision wheels, 35in hankooks
1967 ford mustang conv,302 with edelbrock top end and a big pile of parts
1992 mustang 5.0 GT, lunati cam, edelbrock rpm intake, full exhaust and alot more
2000 Harley fatboy #4 of 125 custom flame HD paint, upgraded carb, exhaust, cams, ignition and a ton of chrome
Reply With Quote
  #4 (permalink)  
Old 08-04-2010, 05:42 PM
Beanscoot Beanscoot is offline
Posting Guru
 
Join Date: May 2007
Location: British Columbia
Posts: 1,495
Beanscoot is gaining momentum as a positive member of FTE.Beanscoot is gaining momentum as a positive member of FTE.
Conanski, what kind of power change, mileage change and torque peak rpm change could be expected by the cam change from the stock 5.8L cam to 5.0 HO alone? (for an engine with long tube headers and dual exhaust).
Reply With Quote
  #5 (permalink)  
Old 08-04-2010, 10:06 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,070
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
Because of the restrictive heads the 5.8 can use a lot more cam than Ford supplies and as a result you'll see both HP and TQ increases across the board with a HO cam and 1.7 rockers. DesktopdDyno says HP peak goes from 221@3500 to 258@4000 and TQ increases from 347 to 381.. both at 2000rpm.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
  #6 (permalink)  
Old 08-07-2010, 01:27 PM
Beanscoot Beanscoot is offline
Posting Guru
 
Join Date: May 2007
Location: British Columbia
Posts: 1,495
Beanscoot is gaining momentum as a positive member of FTE.Beanscoot is gaining momentum as a positive member of FTE.
Thanks for that info Conanski.

Any idea of what would happen to gas mileage?
Reply With Quote
  #7 (permalink)  
Old 08-07-2010, 09:27 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,070
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
More TQ will improve milage.. but only when you're not utilizing the new found horsepower.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
  #8 (permalink)  
Old 08-08-2010, 03:47 PM
Beanscoot Beanscoot is offline
Posting Guru
 
Join Date: May 2007
Location: British Columbia
Posts: 1,495
Beanscoot is gaining momentum as a positive member of FTE.Beanscoot is gaining momentum as a positive member of FTE.
Sounds like a win-win situation for me, since I have the 1.7 Cobra roller rocker arms and a HO camshaft lying around. And I am concerned about mileage.

I actually happened to check the camshaft for straightness by putting it between centers on the lathe at work. Surprisingly, it was about .050" out! It took a huge amount of force with a machinist's jack under the center journal to straighten, and the boss was a big pain as well when he caught me messing around (even though it was a Friday afternoon).

I'd never checked a camshaft for straightness before, but I imagine a bent one, if it could even be installed, would wipe out the bearings pretty quickly.

My ebay rocker arms also had several cracked pedestals and several of different heights. Luckily sets of new ones (16) could be ordered cheaply a couple years ago.

The moral- check everything, particularly with used parts.
Reply With Quote
  #9 (permalink)  
Old 08-10-2010, 03:44 PM
presidentsdad's Avatar
presidentsdad presidentsdad is offline
Senior User
 
Join Date: Aug 2010
Location: Marietta, GA
Posts: 133
presidentsdad is starting off with a positive reputation.
Hey all, does anyone know the power gains for just doing a cat back exhaust like a flowmaster 3 chamber? Is it worth doing?
Reply With Quote
  #10 (permalink)  
Old 08-10-2010, 04:45 PM
1bad67sbf's Avatar
1bad67sbf 1bad67sbf is offline
Posting Guru
 
Join Date: Mar 2010
Location: northern va
Posts: 1,172
1bad67sbf is starting off with a positive reputation.
only if you want it to sound good. on a stock motor a cat back does very little, but CAN sound great
__________________
2007 f150 crew w/ edelbrock cat back, specter intake, edge evolution, billet emblems, 2.5 HBS level kit, vision wheels, 35in hankooks
1967 ford mustang conv,302 with edelbrock top end and a big pile of parts
1992 mustang 5.0 GT, lunati cam, edelbrock rpm intake, full exhaust and alot more
2000 Harley fatboy #4 of 125 custom flame HD paint, upgraded carb, exhaust, cams, ignition and a ton of chrome
Reply With Quote
  #11 (permalink)  
Old 08-10-2010, 08:35 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,070
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
As stated a catback alone isn't worth much since the major cork in the exhaust system is the factory cats themselves.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
Old 08-10-2010, 08:35 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)

Tags
1994, 1997, 4x4, 58, cam, change, changing, f150, ford, gas, horsepower, increase, mileage, motor, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 01:15 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup