News:

It appears that the upgrade forces a login and many, many of you have forgotten your passwords and didn't set up any reminders. Contact me directly through helpmelogin@dodgecharger.com and I'll help sort it out.

Main Menu

decided to go turbo

Started by Wicked72, October 27, 2014, 01:57:39 PM

Previous topic - Next topic

Wicked72

im putting in a 400 in my 72 but i figure id put a turbo on it. keep it bone stock and keep the boost at 8 or lower. i want to do it as a budget project. thinking about using an ebay gt45 turbo. no real power goal right now just wanna play a little and have the piping good for when i can build everything it will be rdy for a better turbo. anyone have exp with turbos would like some input. worried the gt45 will be to small.
M-Massively O-Over P-Powered A-And R-Respected

Wicked72

Turbo specs  now i can get them with a 70ar compressor and a 1.32ar turbine but the inducers and exducers are smaller on both sides compared
Compressor:             
Trim: 69
A/R: .66
Inducer: 68.7
Exducer: 97.8

Turbine:
Trim: 92
A/R: 1.05
Inducer: 87.4
Exducer: 77
The gt45r which is double the price i know would work great and be able to produce hp close to 1k but im not going to run this engine close to that.
M-Massively O-Over P-Powered A-And R-Respected

rt green

third string oil changer

Wicked72

Because thats what i want. Well i was going to put a jet engine in it but i dont have enough tape or sawsall blades hahahaha
M-Massively O-Over P-Powered A-And R-Respected

Wicked72

i guess ill figure it out on my own
M-Massively O-Over P-Powered A-And R-Respected

Troy

Out of all the Mopar site I hang out on I can think of maybe 3 cars that have a turbo so you'll likely have to sort most of it out on your own. I imagine it doesn't really matter what engine you bolt it to - the basics are all the same. Check out some of the more race oriented site like www.yellowbullet.com for ideas.

Turbo specific forum:
http://www.yellowbullet.com/forum/forumdisplay.php?f=20

Troy
Sarcasm detector, that's a real good invention.

heyoldguy

Quote from: Wicked72 on October 30, 2014, 03:43:49 PM
i guess ill figure it out on my own

Heck yes, give it a try. My son just couldn't leave is 2011 Challenger alone even though it had less than 700 miles on it just two months ago. He came up with this on his first try.

http://www.forbbodiesonly.com/moparforum/showthread.php?72965-Boost!-We-don-need-no-stinkin-boost!&highlight=boost%3F+we+don

He wanted to get just 500 HP at the flywheel............got 497 HP to the rear wheels.

don duick

carby or EFI? biggest problem you will have is the carby.  Modifications needed to operate the power valve.

Cooter

There was a time when turbo set ups were like Nitrous back in tge 80's. Misunderstood and expensive.
today, turbo set ups have become affordable. So much so, for about the same money as aluminum heads, I can blow the crank right out of a 440 @1300 HP using junkyard parts and a blow through carb.
" I have spent thousands of dollars and countless hours researching what works and what doesn't and I'm willing to share"

rt green

third string oil changer

1974dodgecharger

Can u get away with less detonation than a blower? Seems thats all i hear is that with a blower your gonna need a lower ratio, but throw turbo into a sentence with same engine and people say, he'll yeah a turbo works just slap it on no tuning issues'?

Cooter

Quote from: 1974dodgecharger on November 01, 2014, 06:22:00 AM
Can u get away with less detonation than a blower? Seems thats all i hear is that with a blower your gonna need a lower ratio, but throw turbo into a sentence with same engine and people say, he'll yeah a turbo works just slap it on no tuning issues'?

Boost is boost. Any time you compress air it heats up. Only reason turbos are killing blowers is they don't rob power to make power. Tuning is done regardless.
" I have spent thousands of dollars and countless hours researching what works and what doesn't and I'm willing to share"

BSB67

Quote from: Wicked72 on October 30, 2014, 03:43:49 PM
i guess ill figure it out on my own

Good for you.  Not much "I'll figure it out on my own"  going on anymore.  Kudos to you.  I think what you are wanting to do is very cool.  I really don't understand why more guys don't do a blow-through, as that is pretty simple.

For me, this is what this hobby is about.  More people will spend a week bantering about a question to a simple problem instead of spending 20 minutes under the hood with some tools.

500" NA, Eddy head, pump gas, exhaust manifold with 2 1/2 exhaust with tailpipes
4150 lbs with driver, 3.23 gear, stock converter
11.68 @ 120.2 mph

c00nhunterjoe

Dont listen to the guys that say its dumb or you cant do it. We took my buddy's 4.7l ram and put a turbo off a 99 5.9 cummins on it. To make it more interesting, we made it a tailpipe turbo setup. In other words, we removed the muffler, and bolted the turbo in its place in the same location. They said it wouldnt work, they said the lag would be ridiculous, they said it couldnt be done. So.... we did it. And it worked. Hardest part was the oil return since it was "uphill" to the engine. Just used a small pump as a return. The was nearly instant boost, and way too much at that....lol. we blew up the stock intake since it was plastic during early testing. After adjusting pipe sizes and a wastegate, we had it running at 6 psi and the truck ran like a raped ape. He traded the truck in on a new diesel at over 100k still runningstrong.

Challenger340

Don't forget to get a decent "Turbo" style Cam grind.

It's fun blowing stuff up when you are young, ENJOY  :2thumbs:
It'll go like a raped ape for awhile.
Only wimps wear Bowties !

1974dodgecharger

Dont think anyone here said it was dumb?

Mike DC

  
Id look at a blower before a turbo.  

Blowers have come a long way in the last 20 years.  The new stuff beats the old Roots types and the centrifugals.  


Turbos demand lots of piping and you'll start wanting an intercooler fast.  On a big motor it becomes a lot of stuff under there.  Just the expansion & contraction of things from heat is enough to give sealing problems.  





Either way, I do suggest this - keep the boost level low.  You said 8 or lower and I agree that's good thinking.

Blowers/turbos are like nitrous.  Give guys a chance to dump a lot more power into the motor and suddenly nothing is enough.  Guys who were content to go from 300 to 350 hp over the course of ten years .  .  give this guy a kick up to 400 hp with a low-boosted blower, and suddenly he HAS to try 450 within a couple months.  And then 500 a couple months after that.  And then 550 --> kaboom.  And then he's building a bigger bottom end to try for 600.  Etc.  

mhinders

Quote from: Cooter on November 01, 2014, 07:15:54 AM
...Only reason turbos are killing blowers is they don't rob power to make power...

I think there are more reasons. One major reason is that a turbo is independent of the engine rpms, and thus can be more effective than a blower. The blower's belt connection to the crank rpms is a limiting factor IMHO.
Martin
Dodge Charger 1967, 512 cui, E85, MegaSquirt MS3X sequential ignition and injection

rt green

limiting rpms. sometimes that's a good thing.  read-kaboom.
third string oil changer

1974dodgecharger

pros and cons, imports vs domestic, turbo vs supercharger, just pic one you like  :icon_smile_big:

Mike DC

QuoteI think there are more reasons. One major reason is that a turbo is independent of the engine rpms, and thus can be more effective than a blower. The blower's belt connection to the crank rpms is a limiting factor IMHO.


That's only a good thing if you care more about ultimate numbers than fun-to-drive.  

The lack of hard connection to the crank means turbo lag.  Very annoying for the driving experience.

Cooter

The term "turbo lag" is from old skool thinking.
 
Today's hybrid turbos have virtually eliminated "lag".
" I have spent thousands of dollars and countless hours researching what works and what doesn't and I'm willing to share"

Wicked72

Hey guys thanks for the encouragement. Im sorry i havent replied. Had a fight at work on steps (im a corrections officer) then totaled my  daily driver a week later so ive been a pile of crap since the past month. If i were to do a blower i would want a kenne belle and everything would be just as custom as the turbo. hell maybe ill do a blower and turbo!! Anyway pricing it all out i can do a turbo fairly cheap and its very cheap to upgrade. Ill be using a blowthru, as efi is out of my price range atm. i will probably modify a holley. jegs has shorty headers i can use for manifolds and ebay the rest. Using my stock 400 with a edelbrock single plane intake. When money permits ill build a stroker 470 and upgarde the turbo to a gt70 ball bearing turbo.
M-Massively O-Over P-Powered A-And R-Respected

mhinders

Good choice and if you keep us updated I'll be following your project with keen interest.
With the turbo you are in no need of stroking your 400...you will have power enough...  :cheers:
Martin
Dodge Charger 1967, 512 cui, E85, MegaSquirt MS3X sequential ignition and injection

CFMopar

A good book to research some info on turbo Charging your car is Corky Bell's book Maximum Boost: Designing, Testing, & Installing Turbo Systems.

http://www.amazon.ca/Maximum-Boost-Designing-Installing-Turbocharger/dp/0837601606/ref=cm_cr_pr_product_top

Its not the be all and end all. Turbos are more complicated than supercharges but its a good place to start. I read it when I was looking to decide between turbo and supercharger and then life took over :(
1971 Charger SE 440 automatic
2014 Ram EcoDiesel Laramie
https://www.youtube.com/channel/UCCkKIkpXr-77fWg7JkeoV_g