Twin Turbo'd IDI!?!??!!
Thread Starter
|
Senior User
Joined: Dec 2002
Posts: 133
Likes: 0
From: Canada
Twin Turbo'd IDI!?!??!!
Hey guys its been a while. After some meat head wrote off my 91 idi and then some chicky wrote off my 96 f150 i had to go out and buy a 92 idi 4x4 (all since june 19th 04!) anyhoo wonderin......how much intake psi will a stock idi with a couple hund miles on it take? was readin bout a guy who pushes (at times) 150 psi into his 59 cummins,and runs an average of 50-60 psi all the time. i want to twin turbo my idi with both lpg and n2o boosts, and add an over/underdrive kit. also any ideas where to start looking on the web for some extreme 4 link susp lifts, want to put 18" bags and have full travel. god i love having a new toy
Posting Guru
Joined: Jul 2003
Posts: 1,028
Likes: 1
From: San Antonio
unless you drop the compression its not recomended on this motor I'd just get a banks or ats wastegated turbo turn the pump up get a good size down pipe(do a body lift) so you can get a 3 1/2 to 4" down pipe.what ever you get there make the rest of the exhaust 4" -5".Adjust the wastegate to get more psi.Put an intercooler on it and then you can say you need more power.why not water/alcohol injection ?
Mountain Pass
Joined: Dec 2003
Posts: 170
Likes: 0
From: Loudoun, Va
150 PSI! 
Sorry don't buy it. A stock psd (95) only pushes like 15 or so. I have a pulling tractor with a 466 IH inline six. The engine has been decompressed (around 12:1 I think) to handle the extra boost. All internal parts have been hardened and hi performance head and head bolts used. This motor generates 700hp at 5000 rpm and 84psi boost. Honestly there is no way this guy is pushing that much into his 5.9. He would need so many turbos or such a big one you could forget about closing the hood and so on. I think an IDI motor can only safely handle 15 or less psi w/o major mods. Someone will be able to tell you exactly what it can take, I just couldn't resist commenting on the 5.9.
Sorry don't buy it. A stock psd (95) only pushes like 15 or so. I have a pulling tractor with a 466 IH inline six. The engine has been decompressed (around 12:1 I think) to handle the extra boost. All internal parts have been hardened and hi performance head and head bolts used. This motor generates 700hp at 5000 rpm and 84psi boost. Honestly there is no way this guy is pushing that much into his 5.9. He would need so many turbos or such a big one you could forget about closing the hood and so on. I think an IDI motor can only safely handle 15 or less psi w/o major mods. Someone will be able to tell you exactly what it can take, I just couldn't resist commenting on the 5.9.
Mountain Pass
Joined: Dec 2003
Posts: 170
Likes: 0
From: Loudoun, Va
Maybe i misread your post. I assumed the 5.9 was a street truck. If its not, sorry for the comment. A pulling truck or drag truck may be able to handle that but nothing in the motor hardly will be cummins parts any more anyway. For a street truck its not practical at all.
Freshman User
Joined: Sep 2004
Posts: 42
Likes: 0
From: Utah
I Read On A Different Forum That A Stock Idi Shouldn't Be Boosted Over 12 Psi Cause You Can Basically Blow Off You Heads. A Stock Turbo Only Gives You 4-6 Psi. I Just Adjusted My Wastegate And Get 9 1/2 Psi And Can Already Tell A Big Difference. But It Takes Money To Play, So I'm Staying A Little More Concervative For Now.
Postmaster
Joined: Jul 2003
Posts: 2,976
Likes: 0
From: Rep. of Texas
In Top Truck Challenge, of Four Wheller Magazine, one entrant's 95(?) Chevy Suburban had a 24v Cummins in his and had put a twin turbo setup on it. He achieved barely over 160 psi. He was on 18" bags, too.
Elder User
Joined: Sep 2004
Posts: 577
Likes: 0
From: Peoria IL
I saw that suburban in the mag too. It had one turbo feeding the other. My buddy put two turbos on his 12 valve Cummins and some really hot injectors. 800+ horsepower from a daily driver. He also put it in the local sled pulls and won many trophies. No offense but the old IDIs aint a good base for serious hot rodding power like the little Cummies.
Trending Topics
Thread Starter
|
Senior User
Joined: Dec 2002
Posts: 133
Likes: 0
From: Canada
I understand that the old 7.3's aren't the usual choice for what I want to do-which is exactly why I'd spend the money to do it-i like to be different! The chevy a couple of you speak about is the one I was refering to. New question does anyone have any suggestions on the "undertruck turbo's", I read about them briefly and think it might be worth trying as space is limited under the hood.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
I talked to a 5.9 Dodge dude running two turbos and 150 pounds boost on his pulling truck.
Propane, nitrous, 8" stacks, cab right side full of recorders to moniter everything that happened to the truck on every run.
About 15 pulls 300 foot long per motor rebuild if he was lucky.
Another part of the story was twice this summer he had motors that were not rebuildable when they let go.
1500 Hp
1300 Ft Lbs torque
5 ton planitary hub drive axles and drive shafts to take the torque
Not what you would want to drive on the road.
Propane, nitrous, 8" stacks, cab right side full of recorders to moniter everything that happened to the truck on every run.
About 15 pulls 300 foot long per motor rebuild if he was lucky.
Another part of the story was twice this summer he had motors that were not rebuildable when they let go.
1500 Hp
1300 Ft Lbs torque
5 ton planitary hub drive axles and drive shafts to take the torque
Not what you would want to drive on the road.
Last edited by Dave Sponaugle; Oct 5, 2004 at 09:28 PM.
Posting Guru
Joined: Sep 2003
Posts: 1,168
Likes: 1
hell, id drive it every day, wouldn't you 5X5?? just to be different. did ya'll see jessie james's 300 cummins trike? that was really neat. he only did it to be different. oh, 5x5, look at my article about the diesel jetboat, if i start this project, i will let ya know how it turns out. and about the under-motor turbo. i don't know how you would get all the oil out of the turbo and back to the oil pan, most turbo's have to be gravity fed to the oil pan. i have heard about special porcelain bearings you can put in turbo's that dont need any oil at all... i have thought about putting a turbo down under too. the whole idea behind the jetboat is to be different , we think alike.
Thread
Thread Starter
Forum
Replies
Last Post
Greg5OH
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
15
Mar 24, 2014 11:57 AM
Stephen67
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
11
Jul 6, 2012 02:13 PM
pontichev
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
7
Oct 27, 2011 06:52 PM
89ford73
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
8
Oct 17, 2004 09:09 AM
