Rebuilding turbo

Idiohmy · Mar 21, 2017

Hey, I'm new here and to the idi community. I just purchased a 1990 extended cab from a guy and he had a turbo with it off a 93 or 94, it's a Garrett, the only markings I can remember off the top of my head are Ar 70 or something. Well before I bought it I had already done a little research or what not and decided down the line I would get one of those banks or hypermax turbo kits to put in it.

I guess my question is what are your opinions on rebuilding this factory one and just getting a new exhaust to save a few bucks vs a brand new banks? I'm not trying to pull no crazy numbers on the dino, just a camper up the mountain.

Idiohmy · Mar 21, 2017

You must be registered for see images attach

Oh yeah, here she is. Not a huge fan of the paint or headache/sleeper thing, but this truck is clean inside n out

IDIoit · Mar 21, 2017

with a billet compressor wheel, the stock turbos do just fine.
spend 1/2 the price of a banks kit and rebuild it

pelky350 · Mar 21, 2017

I keep getting mixed reviews online of the wicked wheel on the turbos some even said they lost a couple psi of boost? My friend keeps saying that it has a extra fin causing lag and they are not billet but I'm pretty sure he is wrong or maybe it's a different application this may be in, he also owns a Cummins so it's probably different for his truck anyway?

shawn deere · Mar 21, 2017

pelky350 said:
I keep getting mixed reviews online of the wicked wheel on the turbos some even said they lost a couple psi of boost? My friend keeps saying that it has a extra fin causing lag and they are not billet but I'm pretty sure he is wrong or maybe it's a different application this may be in, he also owns a Cummins so it's probably different for his truck anyway?

Ive heard with the Original WW you lose a little top end boost. I wish i had a good before and after for the WW2... but i have no regrets

shawn deere · Mar 21, 2017

Idiohmy said:
Hey, I'm new here and to the idi community. I just purchased a 1990 extended cab from a guy and he had a turbo with it off a 93 or 94, it's a Garrett, the only markings I can remember off the top of my head are Ar 70 or something. Well before I bought it I had already done a little research or what not and decided down the line I would get one of those banks or hypermax turbo kits to put in it.

I guess my question is what are your opinions on rebuilding this factory one and just getting a new exhaust to save a few bucks vs a brand new banks? I'm not trying to pull no crazy numbers on the dino, just a camper up the mountain.

What you got will be plenty. These engines can only handle 10psi boost max unless you put in head studs.
Now if you put a wicked wheel2 in, new exhaust, and head studs and block off the waste gate it will be an entirely different animal. For $1,000.

IDIoit · Mar 21, 2017

I went with a billet wheel for the longevity.
having a cast wheel that spins at 10k+ is not how I like to do things.
ive purchased 2 WWII's and they are billet aluminum.
FYI
Billet = something made out of a single block of metal

no mufflers · Mar 21, 2017

I have a banks sidewinder for sale soon. only has around 35,000 miles on it. never been in the salty weather.

PM me if interested.

typ4 · Mar 21, 2017

I can rebuild that for you and do some upgrades that will wake it right up.
For what you are doing the factory style turbo kit is just fine. Get everything with it though.

Macrobb · Mar 21, 2017

Idiohmy said:
Hey, I'm new here and to the idi community. I just purchased a 1990 extended cab from a guy and he had a turbo with it off a 93 or 94, it's a Garrett, the only markings I can remember off the top of my head are Ar 70 or something. Well before I bought it I had already done a little research or what not and decided down the line I would get one of those banks or hypermax turbo kits to put in it.

I guess my question is what are your opinions on rebuilding this factory one and just getting a new exhaust to save a few bucks vs a brand new banks? I'm not trying to pull no crazy numbers on the dino, just a camper up the mountain.

I'm going to tell you right now that you need more fuel. I've run the same pump on both a newer Banks Sidewinder kit(with 3" pipe and glasspack) and a factory turbo setup(with stock 2.25" exhaust minus muffler).
Going from the stock IP to a RD2-110 IP netted me 245-250RWHP on *both* rigs, and they were both pretty clearly turbo-limited.

Still, that's nothing to sneeze at - 320-ish HP at the crank with just a bolt on pump? That's 6.(uhoh) numbers right there!

It certainly makes towing fun, that's for sure. No issues at all hauling 8-9K(another IDI truck on car trailer) at 75MPH.

shawn deere said:
What you got will be plenty. These engines can only handle 10psi boost max unless you put in head studs.

<_< Still running 15-ish PSI through mine with head bolts. Hasn't failed yet.
IIRC, people say it starts blowing around 20-ish; probably a bit less with more fuel.

shawn deere · Mar 21, 2017

Macrobb said:
<_< Still running 15-ish PSI through mine with head bolts. Hasn't failed yet.
IIRC, people say it starts blowing around 20-ish; probably a bit less with more fuel.

Good to know! A bit concerned at the longevity of it though? Just wondering, i dont know first hand the limits

Macrobb · Mar 21, 2017

shawn deere said:
Good to know! A bit concerned at the longevity of it though? Just wondering, i dont know first hand the limits

That's what I'm trying to find out. I've heard all sorts of things, including that an IDI will blow up once you put any turbo at all on it.
Heck, my '92 Ford manual has a statement on page 1!

Your diesel engine vehicle was not designed for use with an aftermarket (Non-Ford) turbocharger. Installation or use with an aftermarket turbocharger may cause damage to your vehicle's powertrain (engine, transmission, driveline, and drive axle) or other related systems that would not be covered by Ford Warranty. Warranty coverage limitations should be discussed with your dealer prior to installation of this modification.

...Of course, we've pretty much found that a mild turbo setup will work on a 6.9, and a 7.3 can handle a decent bit of boost. Add headstuds, and you can put a *lot* of HP to the ground. It's only been recently where we've gotten pumps that will put out enough fuel to, say, break connecting rods doing 400+RWHP(aside from, perhaps, the P-pumped Hypermax engine from a long time ago).

Anyway, I'm pretty confident at this point about the 250RWHP on a stock 7.3; I'm still not sure what the limit of a 6.9 is, but it's over 5 PSI long term.
Edit: Here's an interesting topic from years ago about people running 12+ PSI on stock 6.9's... So perhaps they can handle more than I thought.
And the 1/2" bolts are quite a bit stronger than 7/16" ones

shawn deere · Mar 21, 2017

Macrobb said:
That's what I'm trying to find out. I've heard all sorts of things, including that an IDI will blow up once you put any turbo at all on it.
Heck, my '92 Ford manual has a statement on page 1!

...Of course, we've pretty much found that a mild turbo setup will work on a 6.9, and a 7.3 can handle a decent bit of boost. Add headstuds, and you can put a *lot* of HP to the ground. It's only been recently where we've gotten pumps that will put out enough fuel to, say, break connecting rods doing 400+RWHP(aside from, perhaps, the P-pumped Hypermax engine from a long time ago).

Anyway, I'm pretty confident at this point about the 250RWHP on a stock 7.3; I'm still not sure what the limit of a 6.9 is, but it's over 5 PSI long term.
Edit: Here's an interesting topic from years ago about people running 12+ PSI on stock 6.9's... So perhaps they can handle more than I thought.
And the 1/2" bolts are quite a bit stronger than 7/16" ones

Pave the way good sir! :popcorn

pelky350 · Mar 22, 2017

I second the motion of 15 psi being safe on a 7.3 mines still here we shall see what happens! lol I'm only like 10k deep so far though lol but it's had a turbo for at least 30k now

icanfixall · Mar 22, 2017

Brian. Any turbo will spin upwards of 125,000 rpm. Thats more than 2000 rpm per second.

Rebuilding turbo

Idiohmy

Registered User

Idiohmy

Registered User

IDIoit

MachinistFabricator

pelky350

Full Access Member

shawn deere

So many wrenches, so little time...

shawn deere

So many wrenches, so little time...

IDIoit

MachinistFabricator

no mufflers

Supporting Member

typ4

Supporting Member

Macrobb

Full Access Member

shawn deere

So many wrenches, so little time...

Macrobb

Full Access Member

shawn deere

So many wrenches, so little time...

pelky350

Full Access Member

icanfixall

Official GMM hand model

Similar threads

Latest posts

Forum statistics

Members online

Share this page