if you click on which assembley and then there are 2 more boxes one is comp. ratio that will give specs with different cc heads

 

First, I definitely wouldn't suggest running too thick of a headgasket. While it does lower compression, it also gets rid of quench. When quench goes down, detonation goes WAY up. If you put a 1/8" head gasket on it, it would detonate worse than if you tried to run 10:1 with boost. Do it right or don't do it at all.

Second, please let me know when you find a junkyard with Turbo Buick 3.8's in it. The only junkyards I see are filled with Grand Marquis, GM FWD crap, and mexicans.

 

None of the letters used in "Turbo" are found in "Half-assed". There is a reason for that.

That being said, I would agree that you don't need that big of an engine to reach your goals.

 

I agree.

Had a similar conversation over on N2S.

I'm going to do a 392,.. will be plenty of motor. Will allow the best piston for the CR I want and the block will be much happier with a 3.85 vs 4.17.

Now I need to go do some more reading on turbos,..

Thanks guys.

Hurst

 

I was in no way saying you wer doing it half assed, Hurst. I was just commenting on Dave's statement about doing it right or not at all. Turbos can break a lot of parts and burn a lot of money in a hurry. You are doing reasearch first. Can't fault that at all.

 

Do you have to go .060 on the bore?

 

I'm not 100% at this time. The block was sitting outside under a tarp for a long time. There is a lot of surface rust. The rotating assembly is too far gone to be used for anything more then a stock rebuild.

The block is what I wanted. I am pretty sure its going to need at least 0.030 - .040 to clean it all up. My plans are to have it align bored, minimal decking to clean the surfaces up and then cylinder boring.

I was given the block for free. The ribbing and wall thickness of this C9OE block goes beyond what you see in any other factory blocks. A very heavy block with plenty of meat where its needed. I had originally planned to start light with a 500 - 600hp nitrous setup. But now I'm changing plans again and going to just wait it out to save the money needed and just do a fully forged motor, balanced with all of the good parts to hopefully make 700 - 800hp on full tilt and 500 - 600 for the street. I have a tranny now that should hold it together. I still need to build up the rear and do chassis reinforcements on this car also. I will be doing a cage, fuel cells, new fuel system, and safening up anything I can think of.

I've changed my mind about gutting the car. Its a 93 GT with 47,000 original miles on it. The title shows the last mileage as 43,545 and does not say exempt,.. Car fax also verifies this. So my plans are to keep a full interior with power windows and locks intact. Hopefully I can keep power steering and power brakes,.. but they are not beyond the chopping block. Then clean up the dings on the body and repaint the car the original colors. I will probably do a rear seat delete and depending on how the intercooler, turbos and plumbing get mounted will determine whether I keep the fog lights or not. Would like to keep the stock lines clean,.. no ricer euro lights or other faggy JC Whitney trash like chrome fender strips and crap like that. Just a moddest sleeper for the unsuspecting Z06, Viper or M3/M5, AMG snobs out there. I do plan to put on some 5% window tint to hide the roll bars and hopefully help keep the interior a couple deg cooler at the track.

Thats my plans for right now. Due to the time it will take to complete this,.. everything is subject to change,..hell I could hit the lottery Weds completely changing everything now.

Thanks guys,..

Hurst

 

I've seen them up north,.. I'm not that familiar with the wrecking yards down here. Up north you hard yards 50 - 100 acres full of thousands of cars. At any given time there might be 20 - 30 Turbo Buicks in there. The older 78 - 85 Regal T-Types, Riviera, Century all had turbo versions of the 3.8 as well as the early 90's Pontiac Grand Prix SE which also had turbo 3.1 motors in them. Then there are the diesel pickups which may have a usable turbo in them. Hopefully I can find something here in Fla,.. and yeah,.. the immigrant hispanics are just as bad up north. But they were more into the Honda and Toyota parts so no real threat to the parts I was after. I was heavy into reselling 2nd and 3rd gen Camaro's and any other GM muscle cars I could come across before I came down here to Fla back in 99.

I will make sure I have a usable turbo before I buy any of the other parts needed to put it together. Then my back up plan if I can find any at the junk yards will be to buy a used or new turbo,.. at which point I would just do a single. I'm still researching and playing out different ideas. Listening to suggestions and not afraid to do my own thing. Its not my daily driver,.. so it doesnt hurt me for the car to sit for a year or 2 in order to get everything right. Hell,.. look at Josh's car,.. that thing has changed parts more then I change my underwear and it hasnt moved under its own power in years LoL.

Thanks guys and I am always open to suggestions and any help I can get. Especially concerning the turbos and how to go about setting them up. I am learning this day by day.

Hurst

 

I know nothing about turbo 6's but I can tell that 78-85's are garbage turbos and not the desired 3.8's. Totally different breed from the 86-87's GN /Regal T's
I''ve been thinking about going the same route as what your doing (turbo > nawz). As stated by Frank and DR.Dirt about the engine size, I was thinking 357 and putting good money in the turbo acessories. Good turbo will make all difference in the world.

 

Any junk yard turbo is going to be a garbage turbo. But if I can pick up 2 that work for $100 (Or less) I'll definitely try to use them. Between the 2 they should be able to produce enough boost to make some decent power. Wont be as good as a nice new single 80mm like Wendy has. But I'm out of work,.. going to be taking classes for the next 18 months to work on a bachelors for computer sciences IT majoring in computer security which I already have a discrete background in. I'm on unemployment until I can find something that pays more then unemployment. Fortunately my wife makes good money and is enough to cover our bills,.. but it leaves nothing left for car goodies.

I wont be cheaping out on any of the important parts that can cause major costly damage. I dont see where trying out some garbage junkyard turbo's will really hurt anything. Wort case I waste some money because they dont work or I'll be down on power compared to a proper setup. In the end it will be a learning experience for me. I have come to terms that this is going to take me the better part of 1 - 2 years to complete. I've struggled my whole life. But in the end,.. everything has always worked out.

On a side note.
I knew a guy back in 90 who took a basically stock 84 Regal T-type that had a 3.8 turbo in it. This was not a Grand National. He had that car running 12.50's back then. IIRC all he did was added a small intercooler to his setup. The rest was all stock. He daily drove that car too. It was his car that gave me the idea to buy an 84 Chrysler Lebaron convetible that had a 2.2 turbo motor in it. He tweaked the turbo for me. I made some low 15 second passes and then the second day the motor tossed a rod. I junked the car after that and went back to my Camaro.

Hurst