Does anyone know much about these intercoolers on the Turbodiesel trucks? I can get one pretty cheap, and it is fairly big. The core size is 30"x17.75"x2". It has 3" inlet and outlet holes. I figure these trucks are pushing a fair amount of boost, so the IC must be pretty effective. Any opinions?

 

if anything comes of this let me know that sounds like a huge core! Although kinda thin.

 

How cheap can you get it?

James

 

Its less than $200, but that doesnt really matter if its not really any good.

 

i don't think it'll fit.

they're efficient, though.

 

Oh ...I'll make it fit

 

^ Any other opinions?

 

Id say that these trucks flow a-hell-ofa lot more air than our tiny *** engines. The size of those turbos are INSANE to say the least. I doubt anyone on here will be able to give you a truely accurate depiction of what you're working with on this application, so I'd say do it and let us know how it works out!

 

Given that those huge diesel trucks push about 30 psi, they are really good at cooling. But... is it too big? i.e. the 3 in outlet?

 

this is a comon upgrade used on by owners of 2.2 and 2.5 turbo fwd cryslers/dodge/plymoth cars and vans. If you really want some info do a search on google for turbo omni/daytona/caravan ect. the caravan guys seem to be big with them more than any one else. hope that helps you man.

 

you would never get one of those in an fc, trust me i work at a ford dealership. they are twice as big as the radiator! or half the size of the engine bay.

if you get it to work, more power to ya, no kidding!

chris

 

V-mount the bitch Lenny. I'd love to see that.

 

v mount is where???

as your new sun roof. and also get a functional hood scoop and it will be your in car Heater....

or a either a hood replacement

 

diesels also run off detonation. they dont have pop-off/blow off valves (in most instances) and can handle insane a/r ratios. sure, theyre pushing boost, but whats gonna happen? detonation? pshh, its a damn diesel, it can handle it !
heh, good luck either way.

 

who said they dont have blow off valves? BO valves are to protect the turbo, not the engine.

 

most dont have blow off valves. i know they protect the turbo, i dont know why i even threw that in. diesels are hardcore either way. even diesel's turbos are hardcore.

 

I was pretty sure they had BOVs. Do you have an example where they dont? (not saying you're wrong or right, just stirred up my interest)

 

its hard to find info looking for something that doesnt have something, you know? like, where on the internet will i find a site that says "rx7s do not come with a rocket engine as standard equipment." ?
i did run across this, though: "I know ofa guy who installed one on his 300SD...its totally pointless/useless item on your diesel since its using re-circ bypass valve....no point in wasting $$ on one IMO

heres pics of a blitz bov on his 300SD
http://www.twizted.net/TDN-4.9/albu.../HPIM0147sm.jpg

btw....semi trucks have no BOV....the noise you are hearing is the turbo spooling up. diesels have no throttle plate, no throttle plate = no BOV required"

i'm not saying no diesel has them, i really dont know. i am under a very strong impression that they are very rare (maybe smaller diesels are more likely to have them). all in all, you were right in the first place that i had no reason to bring em up. i was more trying to make a point that diesels are hardcore (i just like that word) and a different monster all together.

edit: ahh, here we go. this is off tdiclub.com (volkwagen tdi; a small diesel)(http://www.tdiclub.com/TDIFAQ/TDiFAQ-6.html#e11):

11. Blow-off valves or BOV or similar

Since people insist upon asking about these devices, they need to be discussed ... The purpose of a "blow-off valve" or "diverter valve" on a gasoline engine is to give boost pressure someplace to go when the throttle plate is abruptly closed, to prevent operating the compressor in the "surge" regime. Since a diesel engine doesn't have a throttle plate, a gadget like this serves absolutely no purpose and has no business anywhere on a diesel engine. "But I like the cool noise ..." Too bad, this discussion is focused on things that WORK. Even if you manage to find some way to make such a device work, the noise of people "in the know" laughing at you because they realize that it has absolutely no place on your engine will drown out the noise that the device itself makes.

Installation: Impossible. Cannot be made to work even if you insist upon it.

Advantages: None.

Disadvantages: Won't work. People who actually know how a diesel engine works will laugh at you for even considering it. You are your own warranty.

Cost factor: Too much, all things considered.

Cautions specific to this modification: Won't accomplish anything.

Suggested modifications in parallel: Irrelevant.

"Bang for the Buck": One hundred percent total waste of time and money.

What if I want more? Do something that actually accomplishes something ...

 

Casio,

Bravo for your efforts in educating us!!
Really good information there. I dont know where the hell I was getting off thinking that they had throttle plates, I knew that, I was just being dumb.

About the IC, if its that big, then maybe it'll eat all your boost up before its all that effeicent, in other words there might be better ones to have, or maybe cut that one in half? Eh alot of work either way, I saw a picture of one on some car, but I cant remember where or whos.

Good luck.

 

oh, don't look towards me for education. i dont know why i even knew this. it may have been because one of the guys i worked with at my last job mentioned someone who used a diesel turbo on something, but used a radiator cap as a blow off valve (i assume it was a diesel's turbo, not a diesel engine). but if you ride next to an 18-wheeler, you can hear them push the gas and let off more than you would during normal driving. you can hear the turbo whine (i believe a whining turbo is a characteristic of a diesl turbo; ie borg warner, but dont quote me on this), but you never hear the a blow off valve.
you know, now that i think about it, i dont think i meant to say they dont have blow off valves. i believe i meant to say they don't have wastegates. i don't think diesels worry about boost control. they rev to what, ~3000rpm? i've ridden in a Dodge Ram diesel and watched the boost gauge (aftermarket, went to 30psi if i remember right). it just keeps rising, as do the EGTs.

 

I totally agree.
Diesel engines also have a huge amount of displacement, i mean there is just no comparison to our engines. Therefore all the parts associated with a diesel engine ie; turbo, intercooler are desigend for diesel engines specifically. So what im saying is a F350 intercooler would be just way too big and would probably bring power down insted of up.
Can you imagine the lag using an intercooler of that size???

 

oh, don't look towards me for education. i dont know why i even knew this. it may have been because one of the guys i worked with at my last job mentioned someone who used a diesel turbo on something, but used a radiator cap as a blow off valve (i assume it was a diesel's turbo, not a diesel engine). but if you ride next to an 18-wheeler, you can hear them push the gas and let off more than you would during normal driving. you can hear the turbo whine (i believe a whining turbo is a characteristic of a diesl turbo; ie borg warner, but dont quote me on this), but you never hear the a blow off valve.
you know, now that i think about it, i dont think i meant to say they dont have blow off valves. i believe i meant to say they don't have wastegates. i don't think diesels worry about boost control. they rev to what, ~3000rpm? i've ridden in a Dodge Ram diesel and watched the boost gauge (aftermarket, went to 30psi if i remember right). it just keeps rising, as do the EGTs.

 

i still say there's more variables. i'm not sure how much each matters, but they're variables nonetheless.
first off, rotaries can use diesel turbos. ie. borg warner, schwitzer, kkk, john deere.
rotaries also have turbos with fairly big exhaust housings.
diesels rev to about 3 or 3.5K rpm. rotaries rev to 7-8500K rpm.
they have displacement and they have torque, but they're running diesel (a high heat content fluid). what would a "rotary diesel's" numbers be in comparison? displacement is relative. old V8s made about the same horsepower as a stock n/a; and they even got leaded gasoline.

my point is there's so many variables, i dont think its easy to make a simple comparison.
is the intercooler too big? maybe, i honestly dont know the average size of intercoolers. and as far as overkill, i think most people buy intercoolers that are way too big. you know there's a radiator behind that intercooler that wants some love, too.

 

well, some guy pulled in his truck where i work(tire shop). a '99 7.3L(?) turbo diesel. we popped his hood and WOOOOAH that was a huge turbo!(garrett) and the pipes... good Lord, the PIPES!

the guy put 250,000 on it and says he gets 20MPG mixed driving.

no, i saw no BOV...

i have a question though... why was the IC directly INFRONT of the radiator?

 

you tell me ~7.3L, big turbo, big pipes.. i say 'where the hell else would you put it?' i dont quite know what youre asking. most fmics are in front of radiators. was there room elsewhere with good flow?