building a turbo motor

[dashiftyfella]

im dropping a turbobuick motor in my 94 camaro. i already have a short block from a 87 grand national ordered. I'm try and build this engine myself has anyone done anything like this before. i figure itll take a year to hunt down all the parts i need assemble them and get them installed into my car. soo this time next years guys watch out. ohh btw does anyone know what type of motor mount i will need, and i need a tta(89 turbo trans am) crossmember where can i find one , they are discontinued throught the manufacturer. i know i need a 700 or 200r transmission, but what kind of drive shaft?, and also how will i handle the computers and engine wireing?

thanx fellas i will keep you updated...


:D

[nova]

All I know is that you want a low compression ratio. Probably no more than 8 to 1. You also probably want forged everything. You might want to ask in advanced tech.

[nocutt]

<blockquote>quote:</font><hr>Originally posted by nova:
All I know is that you want a low compression ratio. Probably no more than 8 to 1. You also probably want forged everything. You might want to ask in advanced tech.<hr></blockquote>

Why does everyone run out to drop compression ratio and decide that forge parts are the best with FI...? Lets put it this way if you are loaded then perhaps you can run out and go get some 8:1 "snail slugs" with forge parts...and maybe if you planning to run "well" over 10 psi of boost...do you know how many seconds you will be in boost...for an average driver it is less than 2%...therefore when driving around town you are basically limping...you should be more worried about your fuel and timing tables during boost...even forge piston will go thru a meltdown if not running the right AFR!!

[scottblack]

Because when you have high compression and boost then you blow the motor. Why do you think the LS1 guys lower compression before they slap on the blowers? [img]smile.gif[/img]

Scott

[nova]

<blockquote>quote:</font><hr>Originally posted by Scott Black:
Because when you have high compression and boost then you blow the motor. Why do you think the LS1 guys lower compression before they slap on the blowers? [img]smile.gif[/img]

Scott<hr></blockquote>

Yeah. Boost raises effective compression ratio so if you're already running high compression you're gonna have serious problems.

And obviously if the guy is building a GN engine from the block up he's not the average driver. The guy wants as much power as possible which means as much boost as possible.

[ May 11, 2002: Message edited by: nova ]</p>

[dashiftyfella]

but of course i want to run alot of boost lol [img]graemlins/fluffy.gif[/img] some people with these turbo buicks run almost 30, or more even. i was thinking an adjustible wastegate that'll keep me to about 20, and has a switch to go to like 10 or so. :D anyways even while running a 21 psi ive seen people put 9:1 compression, with forged everything. i think i may chuck my whole rotating assembly in place of a stronger well.. forged everything. i also wonder how u guys think venoms fuel managemenrt system would handle a gn engine.??

thanx guys and wish me luck

[jmorgan]

i would go to ww.turbobuick.com
they are the guys that could help you

they normaly use F.A.S.T for there fuel system managment

umm you can run 25 lbs on those motors all day with an alcohol system

i would read up over there

i doubt we could help much

you know this is illigle [img]smile.gif[/img] cant put a older motor in a newer car you get in accident and kill someone your *** is gonna get sued and insrnace wont cover you if you dont tell them you did a swap this is the only reason i ran away from this idea

[wolf]

My dad has 10 to 1 piston sitting in the garage (along with other stuff :D ) for his turbo 3.8 in his t-type, but once he puts those pistons in pump gas will be a big no no [img]smile.gif[/img]

[Patrick Javert]

first, there is a place out here in california, it's down in la. they work exclusively on gn motors. they have a kit that you can get that bores out your engine .04 over. Call them. I think their article is in turbo magazine.

[dashiftyfella]

i didnt know it was illegal to put an older motor in a newer car. why is that? anyway ive been talking to guys on turbo buick and they know a whole lot and have helped, i just figured that maybe you guys knew more about how i would mount the engine. i also have to look up the laws on engine swaps. maybe theres an exception. if there is such a law then thats the sh***iest law i've ever heard. any way i need to get this block, 90 somethin pound, to Detroit. whats the cheapest delivery shipping people. ohh its coming from colorado. do you think itll even be illegal if i were to build this engine to where it is practically new. im gonna get all forged piston heads, i think i want racing rods, because they have some sort of super forged process and are shockpinged already am i saying thar right where they hit it with bb's to make it harder. i havent priced any yet

anyway wish me luck. [img]graemlins/fluffy.gif[/img]

[wolf]

<blockquote>quote:</font><hr>dashiftyfella i didnt know it was illegal to put an older motor in a newer car. why is that? <hr></blockquote>
an older moter can't pass current emessions thats my guess, thats whats keeping me and my bro from changeing the moter in his truck (2.2 4cyl :eek: )

[scottblack]

The motor swap is usually legal as long as your insurance company OK's it. Expect your rate to go sky high though. When they know you have a hopped up GN motor in your car, your rate is definitely going to increase, because you are more of a risk and the engine costs more to replace. If you plan to follow through with all of this, I suggest that once you build the motor and it is in the car, have an adjuster come out and appraise the value of the car/motor with all the high performance parts. This way when you get in a wreck and the motor is ****ed up, they will pay for every last cent of it. This is a good idea for usually everyone. A friend of mine just went through this in court, did an engine swap and didn't tell his insurance. He sued them but didn't get it all paid for because he failed to have the policy updated with the new motor in the car. Talk to your insurance company about it all and get someone to appraise it.

Scott

[dashiftyfella]

ill check it out. i have to tell them even though i have ghetto "yo fault" insurance? i wonder if they even can afford appraisers. they did even ask me if i had a z or an ss i just told them camaro and they gave me a price. they suck but hey im driving with legal insurance. :D

[pvtschultz]

It really doesn't have a lot to do with insurance, but according to the clean air act of 1990 or whenever it was, it is illegal to put an older engine in a newer car. It is also illegal to put a larger CID engine in a car than was available for that model year. So your car can breathe pure oxygen out the exhaust and still fail emissions.

[Patrick Javert]

ok, first, get aluminum heads. this will reduce the detonation threshold of the engine a lot. basically, you can run a full point of compression higher on aluminum heads than iron w/o worrying about detonation. also, get inconel exhaust valves, headers, and turbo exhaust manifold. it keeps heat in better than anything else on the market, but also costs the most. I suggest getting a compression ratio between 8.5:1 and 9.5:1 since you're gonna want some power when not running w/ boost. you can do this by unshrouding the intake/exhaust valves in the cylinders, adjusting stroke/rod length, and of course pistons. I suggest 8.0:1 pistons and then getting a slightly larger stroke crank to raise compression that extra 1/2 point to full point. This will also help add more torque to the engine since turbo's don't usually like making a lot of torque. There is also a place in Los Angeles that produces bored blocks up to .04 over. check it out.