89 5.8 build help. - Ford Truck Enthusiasts Forums



1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

89 5.8 build help.

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 12-07-2017, 10:48 AM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
89 5.8 build help.

I bought a 89 F150 for $300. I have put new plugs and wires, fuel filter, air filter, distributor cap, rotary button and one of the value cover gaskets because the other value cover is under the intake. It runs good for a $300 truck. The muffler is torn off and there is a terrific exhaust leak. I want to do right by the ol girl. I'd like to get heads, cam, intake (then replace that valve cover gasket), and new exhaust. It has a C6 and I believe she is geared 3.08. I'm looking for 300 horses if I get 275 I'd be fine with that. I mostly haul my trash with the truck and use it for lite farm use. I would like to move it to daily driver and change the gearing. I'm a Ford man. I've had several Ford's including a 76 Explorer with a 390HO installed and a sweet 62 falcon, but I know nothing about these smog pumpers with EFI.
Reply With Quote
  #2  
Old 12-07-2017, 10:58 AM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
Before asked I don't want to spend more than 5 grand.
Reply With Quote
  #3  
Old 12-07-2017, 12:12 PM
HardScrabble HardScrabble is offline
Posting Guru
 
Join Date: Aug 2003
Posts: 1,232
HardScrabble is starting off with a positive reputation.
If you want to keep the stock fuel injection you have to have good vacuum at idle. Fuel injection modifications can turn into a career you might not want.

There are a lot of choices for strokers, heads and intakes. A stroker can "grow" your engine to breath better and still have vacuum at idle.

You definitely need tight quench for cheap fuel tolerance.

Shopping in catalogs and talking to salesmen on the phone is not a substitute for an experienced engine builder. Don't overcam it and go with a proven build.
Reply With Quote
  #4  
Old 12-07-2017, 12:29 PM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
Quote:
Originally Posted by HardScrabble View Post
If you want to keep the stock fuel injection you have to have good vacuum at idle. Fuel injection modifications can turn into a career you might not want.

There are a lot of choices for strokers, heads and intakes. A stroker can "grow" your engine to breath better and still have vacuum at idle.
I wasn't thinking of a stroker more bolt on mods. You are very correct I do not want to mess with the EFI. What should the vacuum be at idle and how can I test it? I was thinking of a crane444232 cam, GT40X heads and some headers of some sort. I don't know what's available for intakes. Would thuse mods get me close to 300 hp?
Reply With Quote
  #5  
Old 12-07-2017, 12:38 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 24,965
Conanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant future
Quote:
Originally Posted by Mightyox View Post
I'm looking for 300 horses if I get 275 I'd be fine with that.
Install a Crane 444232 with 1.7 roller rockers, longtube headers, and a slightly better flowing intake and you will have about 275hp and 400 ft/lbs torque. That is technically all the stock injectors can handle at sustainable duty cycles although they can be stretched a bit further for the few seconds at a time an engine spends at peak rpm under normal driving conditions. If racing or mud bogging the truck it's a better idea not to push the injectors so hard. Exceeding the supply capacity of the stock injectors is when things get more complex and expensive because you can't simply plug in a bigger set, you also have to somehow tell the computer it is using larger injectors and it's also likely the stock tables will be insufficient for the upgraded motor so tuning is required. And the big problem is the stock PCM is not supported by the common tuning systems used for this generation so something else has to be substituted.
Reply With Quote
  #6  
Old 12-07-2017, 01:46 PM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
Quote:
Originally Posted by Conanski View Post
Install a Crane 444232 with 1.7 roller rockers, longtube headers, and a slightly better flowing intake and you will have about 275hp and 400 ft/lbs torque. That is technically all the stock injectors can handle at sustainable duty cycles although they can be stretched a bit further for the few seconds at a time an engine spends at peak rpm under normal driving conditions. If racing or mud bogging the truck it's a better idea not to push the injectors so hard. Exceeding the supply capacity of the stock injectors is when things get more complex and expensive because you can't simply plug in a bigger set, you also have to somehow tell the computer it is using larger injectors and it's also likely the stock tables will be insufficient for the upgraded motor so tuning is required. And the big problem is the stock PCM is not supported by the common tuning systems used for this generation so something else has to be substituted.
I have read several of your post before joining. Thanks for replying. I don't get what you mean about pushing the injectors hard.
No racing and it's 2WD so no muddin. Maybe squalling a tire from time to time? Is that 275hp with stock heads?
Reply With Quote
  #7  
Old 12-07-2017, 04:34 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 24,965
Conanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant futureConanski has a brilliant future
Quote:
Originally Posted by Mightyox View Post
I don't get what you mean about pushing the injectors hard.
An injector is solenoid controlled valve, it's just a coil of wire that when powered creates a magnet field that works against a permanent magent to open the valve. The longer the coil is powered the more heat is generated and it can only take so much before burning out so what they do is pulse them open and closed at increasing speed and duty cycle(open time vs closed time) in line with increasing engine rpm and load. And to ensure a long life it is recommended that 85% duty cycle not be exceeded.
The more air an engine flows the more fuel it needs to operate correctly, the EFI control system will try to add more fuel right up to 100% injector duty cycle if that is whats required so we need to use other methods of limiting how hard the injectors are pushed... be that simply limiting engine rpm or as in this case simply planning upgrades so that some headroom is retained.

Quote:
Originally Posted by Mightyox View Post
Is that 275hp with stock heads?
Yes that is about what they can produce when there are no restrictions elsewhere.
Reply With Quote
  #8  
Old 12-08-2017, 12:59 AM
Scndsin's Avatar
Scndsin Scndsin is online now
Du Nawt Seek The Treasure
 
Join Date: May 2006
Location: Central Mississippi
Posts: 6,626
Scndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputationScndsin has a superb reputation
I built my GT40 headed/roller 5.8 (did everything but machine) for a hair over $3K that yields a possible 290-300 hp @ the crank & verified 190-ish, rear-wheel hp/265 tq.

It currently peaks at about 4200 & falls on it's face from lack of fuel or tuning at 4850.

I have bits & pieces of a mass air conversion in the wings.

Build thread & other diversions if you like to read:

https://www.ford-trucks.com/forums/1...l#post16937337
Reply With Quote
  #9  
Old 12-08-2017, 04:29 AM
GoinBoarding GoinBoarding is offline
Posting Guru
 
Join Date: Mar 2010
Location: Laramie, WY
Posts: 1,900
GoinBoarding has a good reputation on FTE.GoinBoarding has a good reputation on FTE.
I spent close to the same on my 5.8L build for a 96'. It was similar to Scndsin's but less performance parts & more general replacements/maintenance (truck had 250k on it). I retained the stock cam, used GT40P heads instead, and already have MAF. 20k miles in just over a year, very happy with it. No dyno numbers for mine, but it is much more powerful than stock. Here's a thread if interested: https://www.ford-trucks.com/forums/1...et-minded.html I covered a lot of noob stuff bc this was my first 4 stroke engine build but there's some hard-ish to find info in it too.
Reply With Quote
  #10  
Old 12-08-2017, 06:31 AM
'89F2urd's Avatar
'89F2urd '89F2urd is offline
Postmaster
 
Join Date: May 2011
Posts: 4,102
'89F2urd has a good reputation on FTE.'89F2urd has a good reputation on FTE.'89F2urd has a good reputation on FTE.
If you want to out grow the stock efi, get a quality set of aluminum heads.

If you want to keep it simple and cheap, a gt40p (properly ported preferably) build yields a nice snappy throttle with brutal midrange when paired with pretty much any of the computer friendly cams recommended here.
Reply With Quote
  #11  
Old 12-08-2017, 03:13 PM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
Thanks guys. I've been so busy that I haven't had time to look at the links but I will. I'm working 3 jobs and can't wait to spend some of the cash on the ol truck.
Reply With Quote
  #12  
Old 12-08-2017, 03:26 PM
'89F2urd's Avatar
'89F2urd '89F2urd is offline
Postmaster
 
Join Date: May 2011
Posts: 4,102
'89F2urd has a good reputation on FTE.'89F2urd has a good reputation on FTE.'89F2urd has a good reputation on FTE.
It really is enjoyable to modernize these old trucks, they came so poorly equipped from the factory that the difference is huge when you're finished the build.
Reply With Quote
  #13  
Old 12-09-2017, 01:51 PM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
https://www.summitracing.com/parts/crn-44746-16​​​​​​

Would these R/R work for my heads.
Reply With Quote
  #14  
Old 12-09-2017, 02:00 PM
timbersteel's Avatar
timbersteel timbersteel is offline
Postmaster
 
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 3,786
timbersteel has a good reputation on FTE.timbersteel has a good reputation on FTE.
Yes they will. I have them on 2 other engines. A 302 and 351.
Reply With Quote
  #15  
Old 12-09-2017, 02:15 PM
Mightyox's Avatar
Mightyox Mightyox is offline
New User
Thread Starter
 
Join Date: Dec 2017
Posts: 11
Mightyox is starting off with a positive reputation.
Quote:
Originally Posted by timbersteel View Post
Yes they will. I have them on 2 other engines. A 302 and 351.
Thanks, is there any machine work that has to be done with them? I assume you like them since you bought them twice.

What intakes should I be looking for?
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2003 Ford Excursion 6.0 Value? Collision Excursion - King of SUVs 22 02-20-2017 03:01 PM
White motor oil Ronnief150man 1973 - 1979 F-100 & Larger F-Series Trucks 13 07-03-2016 08:55 PM
Advice on truck purchase jagarcia89 1994.5 - 1997 7.3L Power Stroke Diesel 43 06-27-2016 12:55 PM
Misfire problem solved and it's not good. Coach66 1997 - 2003 F150 7 05-11-2016 10:52 PM
oil stained engine - what do you think? jbourne84 Performance & General Engine Building 1 02-27-2016 08:50 PM


Go Back   Ford Truck Enthusiasts Forums >

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 08:05 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.