more idi power
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New User
Joined: Dec 2009
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more idi power
I'm looking for ways to add power to my 94 torbo idi without spending too much (maybe $500-$600) and without hurting the longevity and fuel economy. Ive heard of a kit from ats that replaces some turbo parts, downpipe, ect. but I'm not sure where to get it or what exactly to get. any ways to improve my intake for more air flow??
Senior User
Joined: Nov 2009
Posts: 255
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I'm looking for ways to add power to my 94 torbo idi without spending too much (maybe $500-$600) and without hurting the longevity and fuel economy. Ive heard of a kit from ats that replaces some turbo parts, downpipe, ect. but I'm not sure where to get it or what exactly to get. any ways to improve my intake for more air flow??
Fleet Owner
Joined: Jul 2006
Posts: 20,347
Likes: 803
From: Mi'kma'ki
ditch the lift pump and fan for electric.
this will free up some hp.i dunno,but id bet this is 15-25 hp increase alone.
ditch that extremely poorly designed stock Y pipe.
have a shop weld you up a Y pipe from the manifolds and join them evenly into a collector.
(the stock is such a joke.take a look at that passenger side and how it enters the drivers side pipe.its crazy!)
have them make it all 3.5 or 4". now,use a good quality free flowing muffler,and exit with the same 3.5 or 4" you began with.
i bet that alone is worth 20-30 hp!
the torque gains are probably more.
and mpg increase with these mods should climb drastically.
i also want to see about ditching the EGR valve,and stop re-burning that trash air for a bit more hp/mpg.
this will free up some hp.i dunno,but id bet this is 15-25 hp increase alone.
ditch that extremely poorly designed stock Y pipe.
have a shop weld you up a Y pipe from the manifolds and join them evenly into a collector.
(the stock is such a joke.take a look at that passenger side and how it enters the drivers side pipe.its crazy!)
have them make it all 3.5 or 4". now,use a good quality free flowing muffler,and exit with the same 3.5 or 4" you began with.
i bet that alone is worth 20-30 hp!
the torque gains are probably more.
and mpg increase with these mods should climb drastically.
i also want to see about ditching the EGR valve,and stop re-burning that trash air for a bit more hp/mpg.
Fleet Owner
Joined: Jul 2006
Posts: 20,347
Likes: 803
From: Mi'kma'ki
oh oops! lol.i was thinking "PVC valve" in our diesels its called the CDR. thanks.good catch.
it recirculates engine gasses back into the intake to be reburnt.
i was wondering if we could block this off,and or, let these hot waste gasses exit outside the engine,if it still needs to vent.
im thinking,we can block it off,drill a hole in a valve cover,and place an aftermarket crank vent so we dont have to reburn the crap lol.
it recirculates engine gasses back into the intake to be reburnt.
i was wondering if we could block this off,and or, let these hot waste gasses exit outside the engine,if it still needs to vent.
im thinking,we can block it off,drill a hole in a valve cover,and place an aftermarket crank vent so we dont have to reburn the crap lol.
Post Fiend
Joined: Oct 2007
Posts: 10,501
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From: Faibanks Ak.
You can't block it off. There have been some guys try different things with it but so far I haven't heard of anything that works any better yet.
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Senior User
Joined: Nov 2009
Posts: 255
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[quote=FORDF250HDXLT;8271032]ditch the lift pump and fan for electric.
this will free up some hp.i dunno,but id bet this is 15-25 hp increase alone.
That's been mentioned before. Is there information somewhere for these conversations?
this will free up some hp.i dunno,but id bet this is 15-25 hp increase alone.
That's been mentioned before. Is there information somewhere for these conversations?
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Cargo Master
Joined: Mar 2006
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From: Sand GAp, KY
I was one of them that tried to change the cdr set up. If you try to just vent it out it looks like the truck is on fire lol! I tried venting it into the exhaust and it just looked like I had bad rings. If it is working right it does its job and helps keep the air ***** off our old trucks. Here in northern kentucky peopel are really bitching about the guys that are rolling more smoke than a steam locomotive. I do have my pump up a little ( so it puts out some smoke under full throttle) but most of these guys are running new dodges and have them hopped up so that they roll coal almost at an idle.
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
I doubt seriously if the lift pump pulls a 1/2 horsepower and the fan if working right you can hold it with your hand until the temps reach 205,granted this only occurs when you are climbing a hill and need every horse.
Senior User
Joined: Nov 2009
Posts: 255
Likes: 1
I was one of them that tried to change the cdr set up. If you try to just vent it out it looks like the truck is on fire lol! I tried venting it into the exhaust and it just looked like I had bad rings. If it is working right it does its job and helps keep the air ***** off our old trucks. Here in northern kentucky peopel are really bitching about the guys that are rolling more smoke than a steam locomotive. I do have my pump up a little ( so it puts out some smoke under full throttle) but most of these guys are running new dodges and have them hopped up so that they roll coal almost at an idle.
Posting Guru
Joined: Aug 2007
Posts: 1,714
Likes: 1
From: Canton, IL
Actually the opposite is true. On our IDI's. the CDR sits over cyl# 7 and 8. the oil fumes go in those cylinders and can cause too high of combustion temps in those cylinders. If you were to track gp failures, I bet you find a higher number of #7 and #8 failures.