I'm building a LS-V for boost . I'm running 9.0:1 cp pistons on eagle h-beams. A buddy of mine owns a shop and got a free Borg Warner IHI turbo that he said I could have. The turbo isn't to big and he said his buddy was going to run it on his Integra build.

I took the part # down and did some research and came up with; the turbo is off a 95-98 GM turbo diesel pick-up truck. They are OEM turbos off the 6.5liter motors !

My question is, has anyone ever ran a turbo off a diesel truck on their cars? Preferrably Honda guys (1.6-2.4 liter motors)? I'm just worried if this turbo is to big? My main concern is turbo lag. Will my 1.8 liter motor be able to spin this thing?

I plan to run E-85 and 10-15psi on the street and c16/q16 20+psi on the dyno/at the track. Any and all help is appreciated. Thanks

 

http://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine

I don't think your going to get enough cfm's to get that thing to turn.
The flow map for that turbo is probably optimized for like 30psi and 500cfms.

sell it and get a t3/t4

 

I agree. Diesel turbos were not designed to run the airflow and rotation speeds needed in order to effectively drive gasoline engines. Just because it is a "turbo" from something other than a gasoline powered engine doesn't make it a good idea to use.

*Be careful.. Writing a book*

Most of the turbos that are used on diesels (especially truck and tractor) use a straight-blade radial design (this is when all the blades are the same full size in straight line perpendicular to the axis of rotation.) These are not used much today. They develop high pressure but aren't very efficient. One can run a lot of high pressure with them, but the drawback is that it has a narrow flow range, which disqualifies it for use on an engine application where the engine operates over a wide rpm range. Diesel engines and generators that use this design operate over a narrow RPM band.

what does all this say? Don't use tractor / truck applications that you got for free and expect them to perform well at all on high revving efficient motors like a Honda.. You'll only be disappointed in the end.

 

ok. ya i'm gonna ditch it and try to find a bb 30r. thanks for the help guys

 

Of course you can use Diesel turbos on a honda! I do it and so do many others! Just look at the holset thread!

Now can you use an enormous diesel turbo on a honda? Not really.

 

The Holset series is just a diesel series and is the only company that creates high performance diesel turbochargers; this means they are the exception more than the rule. Only the X-Range (HX20, HX35, and HX-40) from Cummings turbo technologies were designed to be in high performance diesel engines. Only because of the fact that they were designed to run higher speeds would they ever work in gasoline applications like Hondas. Holsets are made exclusively for diesel applications, and the choice of which one to use all depends upon the airflow demands of the engine and the particular Holset/Cummings that you use.

Just because you can use a Holset (Cummings turbo technologies) HX series on a honda doesn't mean you can do that with just ANY turbo that was designed for a Diesel engine or a tractor like a John Deere.

 

UP

thanks for the info

 

i read an old post where a guy was going to run the same turbo as I have, borg warner gm-5/8 on his ls-v setup

if it'll work, i might as well try it. it's free. i was also able to score some 900cc precision injectors as well so that should be enough fuel for this size turbo. the more boost the better, im guessing?

 

I have no experiance with diesel turbo's other than Holsets. I will take your word for it.

 

No. not necessarily. that's what all the mumbo-jumbo in my last post was referring to. The tractor turbos don't like the higher speeds, and you'll wind up rather disappointed.

Just because it is free doesn't mean its a good idea to use.. But its your car, do what you want.

 

if i can find more info on the turbo and figure out exactly what size it is, i may run it and see what she does. still trying to save up for a 30r....

 

There are others than just a GT3076R that would fit the bill. for less than you would expect. Look at my post again. It wasn't about just the size of the wheels that are important for power. it is the DESIGN OF THE WHEELS THEMSELVES that was the limiting factor. If you're planning on GT3076R later, better find something that is a universal fit now, or you'll be performing a LOT more work later.

 

Could he just change blades to a better design?

 

Wait Borg and IHI work together, I thought IHI was it's own company.

 

No. By the time he changes compressor wheels, machines the housing, rebalance the cartridge, he might as well get another turbo altogether.

Borg-warner & IHI are separate companies. they do not work together

 

It really comes down to the individual turbo. I agree a tractor/generator turbo is a bad idea, however the most common used turbos are automotive truck turbos. Most diesel turbos have huge hotsides vs cold sides, the exact opposite of what Honda motors enjoy. However Holsets and many other pickup truck turbos (GM8 for example) come in very compatable sizes.

What I don't get about the whole "speed" thing is that the only things that dictate shaft speed is presssure and flow. I'll use a 40trim t04e wheel's compressor map for example, which is as small a diesel truck turbo will use. 19psi at ~22lb/min of flow is on the 98,300rpm turbo shaft speed line. So is 13psi at 37lb/min. The same sort of relation holds true for every compressor.


I also use a CFM calc to find the max airflow a 5.9L diesel vs B18 could flow at redline using a rather idealistic redline V.E., and at 0psi to show base requirements:

1.8L, 90%, 8500rpm = 290 to 362 cfm
5.9L, 75%, 3000rpm = 281 to 352 cfm

The only differences is that a Honda will probably use half the boost at redline vs a turbo diesel, meaning lower shaft speeds on a Honda vs their original application. Most diesel turbos with an attached internal WG are set above 30psi.



With all that said, I've seen more than a small handful of people use diesel turbos make shitloads of power. Holsets and GM8's are the most common you'll find, and all still act & perform like a large "gasoline" turbo on a Honda will. Even the "tractor turbo" example I saw made a lot of power, although with giant hotside his b16 spooled it before redline...

 

what are some other turbo options that won't break my wallet and put me in the 400-500whp range?

i've been looking into the holset hx35 off cummins diesels. a lot of honda and dsm guys run them. they seem to make good power are are HELLA CHEAP! as low as $75bux on ebay

anyone?

 

HIPROFILE: thank you sir! thanks for taking the time and figuring out those flow ratings. I plan to rev my motor to 8k-8500k and 9k once i do cams and valvetrain.

I think i may buy a used holset hx35w with a 12cfm-16cfm as a back up. they are really cheap and can be found all over the web and local junk yards

 

I run a IHI RHC7 turbo on my mildly built GSR. Great turbo, spool is actually not that bad at all. Its a T4, 58mm compressor, 62mm turbine. Came off a hitatchi truck of some kind, but reguardless its done pretty well so far for my needs. Street tuned, I prob make somewhere in the ballpark of 320-350whp at just over 10psi or so.

 

bseriescivic5: thanks for the response. when do you see full boost? 10psi seems to be low for a turbo that big. that just proves that a 1.8 honda CAN push these turbos. good stuff.

i've found out the gm-5/8 turbo i have maxxes out around 300-400whp. I was hoping for more power but that'll do especially since its a free turbo.

 

The flow ratings are good information, however you're not taking into account the design of the turbocharger's wheel design. Most diesel and truck turbos don't act like a "40 trim". you're looking at the overall SIZE of the exducer as a comparison. That's not EXACTLY how it works, your numbers for airflow will be skewed quite a bit to the lower side. I'll PM you some examples of what I mean HiProfile.

As for your lesser expensive option. the HX series of Holsets is the only way to go, basically.

 

I would buy a garret 60 trim .63. Currently I have this 60 trim turbo on my car and it cost me 480 new thru Turbo Direct, I did get a nice discount.

For my set up, I am using an Inline Pro manifold and have ac/ps still in my Civic. I Had Locash tune my car on E85 which produced 480WHP and 320lbs torque on 16.8 psi.

The spool is fast and with E85 being 105 octane you can increase your boost level to around 25 maxing the turbo out. I do use ID 1000 cc injectors with a Walboro Intank fuel pump which is all you need for the power your going for.

I also did a MPG test using E85 because I drive my car daily, I got 260 miles on a tank of 11 gallons for 23.7 MPG.

 

Well to tell ya the truth, believe it or not, im seeing 10psi (and over, she creeps alittle) at right about VTEC engagement which is about 4300-4400 on my setup. My turbo may be ball bearing though, I was told that it was, but i didnt know there was BB option for the RHC7, who knows. And yes, my high boost setting will be about 25-28lbs but I am only tuned on my pump gas map at the moment. Ill let you know what my big boy numbers are when i get a chance to re-tune.

 

az civic: thanks for your post. hmm....480 is not bad for a brand new garrett. Yes I will definately be running e85 (a few stations near my house) and race gas for high boost. If I may ask, what kind of set up are you running to make 480whp ? those are some impressive numbers. I also plan to keep my ps and ac also. I will have to look into inlinepro's manifolds. My buddy with the turbo also has a manifold but it's nothing fancy. If it'll work with my ps/ac then i may run it, but if not i'm going to have to look for an alternate mani. My car has a brand new walbro 255 h.p pump. I was thinking about running an inline walbro just for added assurance. overkill? my cousin is going to give me his old precision 1000cc injectors (he just had them sent out and flow tested. came back that the lowest one is pushing just over 900psi and the rest are at high 900's. so i guess you could say that they are 900cc injectors)

bseriescivic5: nice! that is a low spool up time. once at 25-28psi that turbo is really going to come to life. lmk how she does on high boost.

 

turbodirect.com didnt come up with anything besides a Garrett dealer in south africa?....