Ford Diesel Forum / Powerstroke Forum Ford Diesel Forum / Powerstroke Forum
   
Go Back   Diesel Forum - The Diesel Stop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)
Register Home Forum Active Topics Gallery Search Today's Posts Mark Forums Read

7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

       
Reply
 
LinkBack Thread Tools Display Modes
Old 05-26-2007, 04:37 PM   #1 (permalink)
Junior Member
 
Join Date: Dec 2006
Posts: 15
iTrader: (0)
My Photos: (0)
a few questions

i wanna run a different air intake with a cone filter on my 94 turbo IDI, anyone got any homebrew pictures? would a 3 inch pipe be ok? also best MPG i've gotten was 16 on the highway, hows that sound?
my truck is 4wd and towing a trailer at 70 or so i'm runnin about 2500 rpms and thinkin on upping my tire size to bring this down, it's got 4:10's, would that be a good idea? to step up to a 33 to bring my rpm's down.

and my glow plug relay on the engine takes a long time to do all it's clicking, could it be time for a new one or maybe something else.

and last sorry to be a pain [img]/ubbthreads/images/graemlins/smirk.gif[/img]
__________________
1994 F250 supercab 4x4. 7.3 IDI turbo.
3" straight piped after the turbo.
94f250john is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Old 05-26-2007, 05:47 PM   #2 (permalink)
Senior Member
 
Join Date: Aug 2002
Location: near Cleveland, Ohio
Posts: 5,224
iTrader: (0)
My Photos: (0)
Re: a few questions

What size tire are you running? The stock 235/85R16 is about the same height as a 33" tire.

To get any taller you will need to go with a specialty tire. Denman makes a 265/85R16, which will fit on your stock 7" rims.

Going with a taller flotation size (315/70R16 or 35") will not net you a mpg gain since the tire will have more rolling resistance.
__________________
1985 International rollback, 6.9L 5 speed "Li'l Big Truck"

*ASE Master Certified, Medium & Heavy Trucks*
Mr_Roboto is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-26-2007, 06:17 PM   #3 (permalink)
Senior Member
 
1991F250's Avatar
 
Join Date: Mar 2007
Location: Bolingbrook, Illinois
Posts: 214
iTrader: (0)
My Photos: (0)
Re: a few questions

2500 rpm @ 70 is pretty normal, that's what my IDI with 4.10s runs. Mr. Roboto is right, our stock tires (235/85) are about 32.78 in, so 33s won't do much good. As far as your glow plug cycle, how long does the WTS light stay on? If it's the normal 15 or so seconds cold, you'll be alright. The plugs cycle for about 2 mins usually, but you can start her when the light goes out. Sorry, I can't be any help on the intake...
__________________
1991 F250 XLT Supercab 4x4
7.3IDI Non-Turbo E4OD
4.10 gears
Bone Stock
1991F250 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-26-2007, 09:01 PM   #4 (permalink)
Senior Member
 
Join Date: Feb 2005
Location: Northern Utah USA
Posts: 853
iTrader: (0)
My Photos: (8)
Re: a few questions

[ QUOTE ]
The stock 235/85R16 is about the same height as a 33" tire.


[/ QUOTE ]

Actually a 235/85/16 is 31.7" tall and 9.3" wide, with a 7.9" sidewall. The 285/75/16's I have on my 02, are 32.8", 11.2", and 8.4" for the same measurements.

Tire calculator
__________________
My pics...

Sorry to all the loyal 7.3 guys, but I traded my '91 7.3 in on a 2002 F250 Ex cab V10 4x4. SCT Xcalibrator2 with tunes by Powerplay Performance. 285/75/16 Toyo M/T's. Took a long time to get used to the ping-pop of a cooling catalytic converter...LOL.

'85 Bronco swapped up to a 302 4bbl from the 300 I6, NP435 4spd, NP208, 32x11.50x15 Radial RVT's, Soon to be 6.9 turbo powered.

86 F350 Cab&Chassis with a dump bed. 2wd 6.9 and 4 spd tranny. No mods to engine.

2000 Volvo 660 N14 Cummins, 500hp 1650 ft lbs, Autoshift tranny 10spd.

What part of "SHALL NOT INFRINGE" do you NOT understand?
aceohearts is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-26-2007, 10:32 PM   #5 (permalink)
Senior Member
 
cdnsarguy's Avatar
 
Join Date: Jan 2003
Location: Neepawa, Manitoba Canada
Posts: 16,819
iTrader: (0)
My Photos: (66)
Re: a few questions

3 inch exhuast is a little small on a turbo.....4-5 would be better with no muffler. If you really need a muffler get a grain truck muffler......the size you need.

When the WTS light goes out... you should start the engine. The clicking will continue after the start with engine running to clear up any possible smoke.
__________________
http://photos.thedieselstop.com/show...0/ppuser/28329
93 F250 7.3 IDI S/C XLT 4X4 E40D 3.55LS, Captains chairs, Tutone Mocha, Leer 48" Hiboy cap, FR & RR hitches, full DeeZee running boards. Factory ordered/delivered Jan 93 has 160K+, it's basically a stock truck with all the Ford options, just no disc player.
Toys: 26'Jayco FK TT, 18'Sylvan Pro Fish.

Proud Canadian BOOB man too!!
cdnsarguy is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 05-28-2007, 03:46 PM   #6 (permalink)
Junior Member
 
Join Date: Dec 2006
Posts: 15
iTrader: (0)
My Photos: (0)
Re: a few questions

so 4 inch isn't too big for this engine?
__________________
1994 F250 supercab 4x4. 7.3 IDI turbo.
3" straight piped after the turbo.
94f250john is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - The Diesel Stop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)



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

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

» Search Used Trucks
Search for used vehicles by ZIP, please enter Zipcode below:
Google Links

» Log in
User Name:

Password:

Not a member yet?
Register Now!
» Wheel & Tire Center


Sponsors

» Auto Resources
Locate Ford Dealerships to find a new Ford for sale, Ford Mustang and other car models such as the Ford Escape.
Powered by vBadvanced CMPS v3.0 RC2

All times are GMT -5. The time now is 08:02 AM.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.1.0
  • AutoForums.com
  • Truck
  • European
  • Import
  • Domestic
  • Manufacturer

AutoForums.com is the premier network of enthusiast-owned enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share experiences and opinions as a community.

Visit AutoForums.com today.

For advertising information, please visit our AutoForums.com website and Contact Us, or send an email message to sales@autoforums.com.