Ok, so my buddy who has like a 4 cycl. eclipse right, well I drove that the other day and OMG runs like an 11 sec. quarter. Well I got to asking him something he had in it etc. And he said a Dodge cummins turbo that he got for like 280$ now he said he bought some type of bracket for it or what not, but either way for that amount even $500 compared to say give or take a $1000 for a standard or whatever you will have it for just Cars.

So my question is, is it possible to put a dodge cummins diesel turbo in a 305 TPI? And if so what shall I need to do?

And maybe why do it, or why not?

THANKS SOOO MUCH Peeps!

 

Does anyone maybe know the answer to this?

 

Not that I know anything about anything but I don't think a 2.0L Eclipse makes enough exhaust pressure to spin a garrett turbo that big. I'm not sure that a 305 would either. If a turbo is something that interest you do as little looking around to find a turbo that will spool up correctly with your current setup. Turbos are fun.

Phil

 

Peronally, I think it's monkey-spank BS, acne'd filled bench race talk.

Consider a few things...

Diesels spin out at 3000/3500 RPM...4 cyl make HP in when they get in the 6000/7K range.

Hmmmn, suprised he didn't say it'd run 9's on street tires.

 

What do you reccomend for a turbo then? I think I would rather have a turbo, then a super charger am I right?

 

if you have to ask questions like this neither is right just leave your car alone, or do reasearch

 

I have a cummins turbo I'll sell ya.I also have a chevy turbo for a diesel engine if ya want it...but yeah you'd have to have a small turbo to spool up one of those turbos...lol

 

I'm his buddy that has that talon. it's awd auto and I do have a holset h1e cummins turbo on it. It' doesn't run 9's on street tires, but it should very easily run mid-low 11's on street tires. The best I got last year was a 12.3 @110 with it. i can get full boost (25psi) by 4250rpms with minor head port work, 264/272 cams, new intake, meth injeciton, etc. The holsets come with a stock t4 style exhaust side, which I changed out with a .55 a/r Bullseye exhaust housing. Some people still use the stock exhaust housing on 2.0l to get the full potental of the turbo.

Now that I got a chance to stick up for my 11-second car, I understand that it takes a lot of work to boost a n/a car. What turbo are you guys using, and have had good experiences with? I've seen mustangs (5.0) that run gt42r's and the spoolup is pretty good. He doesn''t need something crazy now, but something to start out with. Does anyone make good kits for these cars? does anyone make good supercharger kits for these cars? That's why i thought a stock Holset hx-40 pro or H1e (comparable to a garrett gt35r) would make a good canidate for a v8 car. I thought you guys made enough backpressure to spool this if my car does.

Also, what are you guys using to tune with? Do the 1985's have an obd1 ECU or anything? Can you reflash them?
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Cummins turbos aren't even made by Garrett. They're made by Holset which is mostly popular in Europe. They're like the Garrett turbo's here, very popular.

 

i was looking at running an hx-45 or an hx-50 when i was researching my stuff

there are no real turbo setup for these cars, most all of them are custom...with the exception of BBSDesigns, but availability is iffy

procharger makes a nice setup for the 88-92 cars

the tune is done by burning prom chips...i don't know much about that side of these cars as i'm a carb guy.

now, for all of you other jackasses that represent this site: turbo sizing has much more to do with air VOLUME, not engine size or RPM per-say. the only person in this thread that made ANY sense, was the AWD talon guy

 

Thanks for the HELPFUL reply. So, since he has a TPI, we can get his ECU re-flashed (or the prom chip) and use that to tune for the afr's etc.?

Is there a link to see what turbo's have done well on these cars, or a ballpark range on which one would be the most efficent on a mostly street-car. I'm talking about a/r's and housings. Thanks

Josh

 

honestly...you can build plenty of n/a street-car power with these cars...whether it be a 305 or a 350. most guys running turbos are looking for sick power...so they're all kinda big. if your looking for just 400hp or something like that, you can do that with a set of heads and a good camshaft.

as far as the re-flash thing, i'm not really sure. i think you actually have to burn a new PROM. i do know that there is alot of power to be had in the tune though, even in stock form

 

Is this a MAF TPI car? If so you would just have the turbo suck through the MAF. You will have to custom burn PROMs, but it's not that hard. I've been doing it for a few months now and I've had great results. With a turbo setup you'd need to read up and know what you are doing to tune it, but I wouldn't be afraid of it.

Among the millions of other options, you could swap over to Megasquirt and have a speed shop custom tune it.

If money and fab skills are in short order, just do a remote mount setup and put the turbo where the stock muffler is, that way you won't really need an intercooler, you can use your stock manifolds and exhaust too.

As for wether a turbo for a 5.9 cummins is the right size, I dont know. read up and learn the calcuations yourself. I'd think it might be the right size, maybe a tad small but if it is remote mounted that might not be as big of an issue.

I think a lot of users on this forum open their mouth before they think, or, they just blabber on about stuff they THINK they know but don't. Sorry you guys got flamed.

 

well the first post was a little ridiculous. As far as turbo kits there are plenty of twin turbo T3 setups on ebay that you have to do a lot of work to. I think that would easier than a single turbo setup, esp if you can make your own exhaust/downpipes. Btw my friend had one of those awd dsms that had to be in the 12s. it had the evo 3 turbo, 3 inch turbo back no muffler or cat, fmic, dyno tuning, and whatever else needed to support that. Im not sure on the exact details, but it sure was fast. Im sure 2 of the stock mitsubishi turbos would work on a v8 too. Arent they t3 flange? Im not sure. but most all the manifolds you can get are t3/t4

 

Other then the car wanting to get turbo'd. All we know is 305 TPI, not the year to know what ECM system it has to know if its MAP or MAF based. But either can be done with prom burning equipment. Most or all is available at moates.net... and likely several other places.

Lots of fab skills needed.

As for what turbo. No clue.

I personally would start with other things on the car first. As mentioned, you can get some decent power with an N/A engine.

 

420a-t, That was the most polite, respectfull and well thought out responce I have ever seen on one of these forums. You were being, well, chat upon, and your responce was much better than mine would have been. The thought of one of thoes little *****s doing 11 second 1/4 miles scares me. It just shouldn't happen. As for the turbo choice for the 305, I would leave it as is unless you plan to spend some big money. And just so you don't think I am totaly turbo stupid, I work on diesels for a living and this is my 13.5 sec work truck.

 

How can you say you have an 11-second car if you haven't hit the 11's yet?

 

wanna buy this and try it out?

 

Wat are the specs on that? i have an 87 TPI 350 that i am turboing doing a rear mount setup. And i need a turbo.

 

I would have to look at it again..I know its a garrett but as far as specs I dunno....Here's a little larger one I have laying around...compared to a pack of smokes...

 

Well wat are you looking to get for either one?

 

To find the right turbo, you need to look at the operating RPNM's of the engine.

Diesle engine generally spin at a much lower RPM than gas engines, so deisel turbo are setup (amond several other things) to be able to generate the most pressure at the correct RPM, after that, you don't get much out of them.

If you have the exhaust to spool a deisel designed turbo to it's correct range, chance are you just "pushing air and not getting anything more" after it's spooled up.

Pretty much like camshafts/etc, sure, you can wind a 205/205 cammed engine to 7500, but you quit making power long time ago...

Ofcousre my only deisel turbo experiece is with real deisel engines, Big Cam Cummngs (350's and 400's) Volvos back in my mis spent youth.

The first thing anyone asked you when you change a turbo is fuel metering and RPMs you want to run (yes, there's several other factors as well, but real turbo guys don't care about too much, other than to make sure yo're not trying to spin thier vanes at 50K rpms.

I can't see how gas engine would/could be much different, or guys would be running Honda turbos on V8's

 

Ok. will a turbo with a intake of .96 a/r and a 1.00!!! exhaust a/r be way too big for my 350. Won't it have bad lag? its a diesel turbo.

 

guys

I work on big *** turbo charged engines for a living these engines are 1800 hp to 4400hp. These turbos are around 1500 pounds.

I've actually tweaked the turbine end (exhuast) on some of these things to fool around when the boost starts to kick in.

The right turbo depends on what you want the combinations are infinite. too much air and not enough fuel on a gasoline engine and you run way to lean and have a melt down. Sure a truck diesel turbo would work on a car (v8) you just need enough heat and energy to spin the turbine end. The compressor section is another you gotta look at. Waste gates and manifold dump valves as well. Some of these waste gates have different springs and adjustments on em. anyways the options are infinite. its takes a guy with ***** to have an idea and work it out and make it work. Also it takes a pretty smart dude to figure these things out.

 

like its been said before, most pickup diesel turbos are actually smaller than you would think because they have to spool in a 3500rpm (on a good day) window. To be completely honest, a holset turbo for a 6.5L GM pickup works good for a 3100/3400 GM V6 and is comparable to a T3/T04B S-trim. A pair of these turbos would PROBABLY (I havent run through the charts but assuming the size comparisons) work good on around a 300-350 HP NA 350 making peak power below 5500 RPM. A pair of T3 super 60s off a thunderbird (not very common, most were .48) would work well for a 200-300 HP NA 350. This is assuming you dont care about getting it 100% right because of course spec'ng out a turbo would produce more power, its just harder to find at a junkyard. The new garrett GT series are VERY nice turbos and I wish I could afford one.

 

Here's something coming from a nobody like me with no turbo exp. or barely any TPI exp. but if this guy has an 85 305 TPI motor, wouldn't that be the absolute WORST engine to start with as far as tuning the computer chip?
Someone did mention something about it being an 85 305 TPI above for the record, I think it was 420a-t.


420a-t
"Also, what are you guys using to tune with? Do the 1985's have an obd1 ECU or anything? Can you reflash them?"