New Garrett for my Slant 6!!

[cndnGLH]

I think its cool that he's trying this, If he wants to try, all the power. Another way might be to get a 4 bbl slant 6 intake (didnt offenhauser make one?) and use a fuel injected Holley throttle body , with an AFPR?

[moparzrule]

Yes offenhauser makes a 4 bbl intake, a holley 390 would be well suited or I was gonna use and edelbrock 500 cuz I was looking into a comp cam so the additional airflow was needed.
The fuel injection is not a bad idea at all, but you'll need an aftermarket inline high pressure pump and an adjustable regulator in combination of a rising rate regulator. That way gets kinda expensive although it would be a good choice.

[mwinkle353]

Why not try to adapt an early Grand National carb/turbo to your setup? The Early ones were pull through. Meaning that the carb was mounted to the inlet of the turbo. Then the Air/Fuel mix was forced into the manifold. Or was this the setup for the Trans Am 301ci turbo motors? I can't remember exactly. Besides, would this not be a good setup for that size motor? Even if you had the smaller 170ci motor, you can still reap the benifits of the larger turbo in the way that you will have a little bit of lag to help you settle the traction of the tires before boost induced torque lights up the asphalt. I guess that all depends on how much boost and hp you're looking for.


Just a thought,

Wink

[moparzrule]

That is a pretty good idea except no intercooler can be used that way. But it a way the gas being atomized by the turbo has kind of an intercooling effect.
The GN is 232 cubic inches, in a 74' he would have the 225 slant six so it's A-OK.

[finnman1]

i've been floating back and forth between a 2bbl and the 390 holley. i finally think i'm going with the 4 bbl. although i need to hit a swapmeet because i cant find a site that sells the offy manifold for cheap. seen one on ebay once, but that was it.

[finnman1]

i've heard the stock floats will crush under boost. i've also heard that the 390 holley is nearly set up for boost applications as well. any idea what it would cost to set it up for forced induction @ a shop??

[mwinkle353]

Quote:

Originally Posted by moparzrule That is a pretty good idea except no intercooler can be used that way. But it a way the gas being atomized by the turbo has kind of an intercooling effect. The GN is 232 cubic inches, in a 74' he would have the 225 slant six so it's A-OK.

This is were chemical intercooling would come in handy. IE- water/alky injection. But to each thier own. I was just trying to help.


Wink

[moparzrule]

Quote:

Originally Posted by mwinkle353 I was just trying to help. Wink

Why this statement with the head bang? I was saying yours was a pretty good idea! Got me thinking anyway....

[89acclaim]

Mwinkle353 are you thinking about something like this? http://cgi.ebay.com/ebaymotors/ws/eB...971587449&rd=1

Daniel Merrill

[moparzrule]

Hey, something just hit me....if you have that suck-through style setup you don't need to modify the carb for boost because it won't see any! Only problem is it's spreadbore flange BUT there is an adapter out there to fit the square flange carb on.

[finnman1]

i've already bought the garrett, so i'm going that route. soo....?

[moparzrule]

That turbo is pretty small for 225 cubic inches....consider this, it came off of 132 cubic inches!

[85lebaront2]

I would definately consider bidding on that early GN setup. It is a Garrett turbo as can be seen in the picture. You would have to plumb the exhaust up to it. You could either use a Quarajet style carb or an adapter and a small Holley. Same setup for boost control, use a Grainger valve. That's almost kinky enough to be interesting. Oh, for the other turbo, Honda Ricers love the Chrysler Garretts.

[finnman1]

ok, i'm interested now... don't draw through setups generally see less power? I'm looking for pure speed. or are the boost #'s limited only. i never planned to run more than 10lbs of boost in the first place. The article i mentioned on my first post has the guy w/ the mitsu turbo running 16's in the 1/4 and these slants go through the traps at 20 seconds stock and are rated at 94 hp. Surely, going with a garrett would be a good compromise between lag and power. I'm not spinning my slant past 4500 rpm. ..So, do you think my garrett would bolt right up to this piece?? (it's been newly rebuilt and is in immaculate cond.)

[finnman1]

so, how would i hook up the air inlet of my garrett to the ebay item. i dont recall mine being threaded for 6 bolts, only 3