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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

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  #31  
Old 09-05-2011, 08:36 AM
John Such John Such is offline
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Quote:
Originally Posted by redrivergorge View Post
Its called a pre-combustion chamber and IDIs(in-direct injection) have a lot lower fuel pressure than a direct injection.

Look it up smart guy the only one your embarrassing is yourself.
Well let me ask a quick queston?? Were does the fuel go after the precomustion chamber!? Oh wait the combustion chamber! and the only reason they have the precombustion chamber is to compensate for the lower fuel pressure. So in closing, fuel is introduced DIRECTLY into the combustion chamber compared to an mechanical INDIRECT system that introduces gasoline before the valve. Thank you that is all!
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  #32  
Old 09-05-2011, 09:07 AM
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Quote:
Originally Posted by John Such View Post
Well let me ask a quick queston?? Were does the fuel go after the precomustion chamber!? Oh wait the combustion chamber! and the only reason they have the precombustion chamber is to compensate for the lower fuel pressure. So in closing, fuel is introduced DIRECTLY into the combustion chamber compared to an mechanical INDIRECT system that introduces gasoline before the valve. Thank you that is all!
well good dang call it doesnt enter the engine before the valve... but It is still in-direct...

If you would have listened: ''look it up and edit your post'', then everyone on here wouldn't have to see your foolish angry defensive posts

so quit getting your panties in a bunch and take this as a learning experience, part of life is admitting you are wrong.



Also to the OP: my idi gets about 18, that is mainly town driving, pulling farm wagons some, if I drive straight highway at 60 I have seen 20-21... IDI guys love their IDI's and Powerstroke guys love their PSD's... All a matter of preferance, my turbo'd idi is not much different power wise then my buddies 02 PSD, when the chip isnt turned up. but with his chip on economy, about 17mpg is all he gets out of it....
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1996 F150 4x4 351w(5.8) , 86 Ford 10.25 8 bolt Rear 4.10's, 79 8 bolt Dana Solid 44 Front, 8' Western Uni-Mount Flatbed Dump and Much Much More... Money Pit

1992 F-Superduty 7.3 ZF5 60,000 miles
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  #33  
Old 09-05-2011, 09:12 AM
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Quote:
Originally Posted by John Such View Post
Well let me ask a quick queston?? Were does the fuel go after the precomustion chamber!? Oh wait the combustion chamber! and the only reason they have the precombustion chamber is to compensate for the lower fuel pressure. So in closing, fuel is introduced DIRECTLY into the combustion chamber compared to an mechanical INDIRECT system that introduces gasoline before the valve. Thank you that is all!

Wow now your comparing diesel to a gas engine. A couple posts up you said diesels inject directly into the combustion chamber. Thats not the case with in-direct injection as you just learned. Hence a distinction with a difference.
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  #34  
Old 09-10-2011, 12:49 PM
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Wow that was entertaining for a bit there! lol

He never did expand on what he thought IDI stands for.
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-1996 F-250 7.3L, Auto, 4x4, 3.55 gears, TC lock-up, Amsoil EaAU4095, EBPV gutted, 3" DP, Straight Pipe, 203° T-stat, 1.0 A/R Turbine Housing, 280,000 Miles
-1997 F-250HD 7.3L XCLB 114,000 miles, 3" DP to 4", EBPV gutted, EaAU4095
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  #35  
Old 09-10-2011, 03:46 PM
IDI Diesel IDI Diesel is offline
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Well iv got a 89 7.3 IDI with a e40d and regularly see 16mpg around town and 22 on the highway. Granted my mpg would be better in town if i wasn't always showing off the cute gals walking around and spinning tires for their enjoyment gosh the things us teenage guys to to get a girl...
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  #36  
Old 09-11-2011, 03:01 PM
540milotalon 540milotalon is offline
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The argument was ill timed and directed, IH refers to them as IDI or DI. I'm not going to argue with them. John may have to wait a while to post again. I'm not the brighest bulb in the box but I'm sure insulting you guys isn't going to help. Back to original topic, the 5% Bio I was using is being discontinued. I noticed the truck ran better and seemed to average the same mpg. I have used other straight fuel than was erratic in mpg.
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'96 250 4x4 5 spd,Ext.cab, several mods
'95 350 2X4 5 spd, similar to above mods
'90-250 4x4 w/'93 7.3 IDI straight pipe K&N,
'89-250 4x4 7.3 IDI straight pipe K&N,300k+
'87-250 4x4 6.9 IDI w/Banks Turbo,GW 4 speed
'83F-350 2x4 6.9 IDI K&N, with 125k on 2/26/11
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  #37  
Old 09-11-2011, 05:44 PM
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14.56 AVG MPG @ 76 fill ups.
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♠ Log Truck: '93 F-Super Duty (F450) XLT 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 5:13, Dually, 16' Dump & Auto Crane ♠
♠ Chip Truck: '93 F250HD XLT 4x4 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 3.55, Dually, 9' Dump, & Plow ♠

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  #38  
Old 09-14-2011, 01:33 PM
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IH refers to them with 2 different names because they are 2 different engines.
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-1996 F-250 7.3L, Auto, 4x4, 3.55 gears, TC lock-up, Amsoil EaAU4095, EBPV gutted, 3" DP, Straight Pipe, 203° T-stat, 1.0 A/R Turbine Housing, 280,000 Miles
-1997 F-250HD 7.3L XCLB 114,000 miles, 3" DP to 4", EBPV gutted, EaAU4095
"He that hath the Son hath life; and he that hath not the Son of God hath not life." 1 John 5:12
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  #39  
Old 09-25-2011, 12:38 AM
takenreality takenreality is offline
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13.7 MPG
'97 F250 7.3 Auto with Manual Hubs

All short in-town trips, lots of idling.

Any idea what I will be looking at with 2k lbs in the bed at 55mph? I'm hoping better!
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  #40  
Old 12-31-2011, 08:36 PM
duke7595 duke7595 is offline
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I HAVE A 1996 FORD SUPER DUTY W/ 7.3 POWER STROKE.
It has a 10 foot steel flat bed,
QUESTION: can I load a 5500 lb. tractor on the bed and be ok weight wise ?

Any help would be appreciated.
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  #41  
Old 12-31-2011, 09:42 PM
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to the OP:
I got 21 avg on the highway cross country with about 1500 lbs of tools and motorcycle in the back, on a shot transmission. 95, f250, 2wd, E4OD, single cab.

the sad thing is i get the same thing in my twin turbo Fummins, with 4wd and 37" meats. I love my fords, but heaven bless them they're better vehicles once they get the powerstrokes swapped out for cummins...

Just my .02
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  #42  
Old 12-31-2011, 09:50 PM
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Quote:
Originally Posted by FORDF250HDXLT View Post
14.56 AVG MPG @ 76 fill ups.
14.55 AVG MPG @ 93 fill ups.

93 f250HD 7.3L NA (turbo install soon.and i did ditch the stock fan for twin electrics.)
E40D auto
4WD
3.84 effective gearing (3.55 gears with shorter,lighter and skinnier,less rolling resistant tires)
8100 lb empty weight (and rarely empty.)
dually
large dump bed
custom low front air dam
rural stop and go driving.with most speeds of 45 MPH. (most often speed limit anyway.)

snow plowing tanks not calculated in of course.

http://www.ford-trucks.com/forums/ga...vehicleid=1301
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♠ Log Truck: '93 F-Super Duty (F450) XLT 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 5:13, Dually, 16' Dump & Auto Crane ♠
♠ Chip Truck: '93 F250HD XLT 4x4 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, E40D, 3.55, Dually, 9' Dump, & Plow ♠

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  #43  
Old 01-01-2012, 02:08 AM
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Idi in my sig. Highway 21-22. City 17-18.
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1983 F-250HD 2wd 300. T18 4speed 4.10s. Base. 170k Hiding in garage for the last 10 years. dead. dads truck. Project truck.
1991 F-250HD 4x4 351w ZF 5speed 4.10s Custom. 165k old plow and landscaping truck. Parts truck.
1990 F-250HD 2wd 7.3idi e4od 3.55s. Custom 360k 'The Carpathia' Daily driver.
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  #44  
Old 01-01-2012, 07:34 AM
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Quote:
Originally Posted by John Such View Post
ALL diesels are direct injected!!!!!!!!!!
Quote:
Originally Posted by John Such View Post
Look up the basics of a diesel engine and you will find that on every diesel engine that the injector delivers fuel directly into the top of the combustion chamber! (That means direct fuel injection)
LMAO I am so embarrassed for you dude! Please please read up on what you say before shooting your mouth off. Makes you sound way less stupid!

Google "idi wiki" (3rd link down) and educate yourself a bit before posting again.

Scott
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  #45  
Old 04-24-2012, 10:39 PM
ford buddy11 ford buddy11 is offline
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Do any of you guys know what kind of exhuast would be good for a 1992 ford f250 xlt 7.3L 2wd? i need an idea for a new exhuast and chip for it probably the mileage chip
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Old 04-24-2012, 10:39 PM
 
 
 
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