The Oldsmobile Connection

[raskull]

Again guys, just me imagining things (like the v6/v8 swap i wanted to do lol)

I've been doing a little reading on the side about some GM V6 engines just to get a better understanding of whats under my hood. I haven't checked the VIN number but I'm pretty sure I have an LN3.

To my understanding, the series II version of the LN3 is the L67 which is turbocharged (correct me if I'm wrong).

SO. hypothetically speaking, is it a reasonable alternative to swap the blower from a L67 and mount it on a LN3? It seems like the engines are extremely similar, and it seems like it would be a hell of a lot easier than a swap. I'm assuming there would be some kind of programing for the computer involved, but have any of you guys heard or done this before? The L67 turbochargers are going for less than $300 on ebay. Is this idea even reasonable for an extra 60HP (dunno how much torque)?

Could my engine structurally and physically handle the extra power, or would it shoot a cylinder through the hood. There's less than 85,000 miles on that engine and frame.

Just speculating...

[91parkave]

raskull wrote: Again guys, just me imagining things (like the v6/v8 swap i wanted to do lol)

the v8 swap is more than possible as well some of the fiero guys have used Lt1's hooked up to the 4t60-e trans you currently have, anything is possible if you have the bread.

raskull wrote: I've been doing a little reading on the side about some GM V6 engines just to get a better understanding of whats under my hood. I haven't checked the VIN number but I'm pretty sure I have an LN3.

Youre a 93 which is a series 1 L27, Ln3 was 88-90, the dead giveaway
is your composite black upper intake manifold.


raskull wrote: To my understanding, the series II version of the LN3 is the L67 which is turbocharged (correct me if I'm wrong).

no series 2 version of the Ln3, the 3800 series of motor has the series 1,2,and 3 versions of the motor, and none of them were turbocharged, they were supercharged.

raskull wrote: SO. hypothetically speaking, is it a reasonable alternative to swap the blower from a L67 and mount it on a LN3? It seems like the engines are extremely similar, and it seems like it would be a hell of a lot easier than a swap. I'm assuming there would be some kind of programing for the computer involved, but have any of you guys heard or done this before? The L67 turbochargers are going for less than $300 on ebay. Is this idea even reasonable for an extra 60HP (dunno how much torque)?

You'd be be better off buying a complete L67 series 1 motor and trans, and computer if you want it to be durable, you have to remeber the supercharged cars have a heavier duty diff in the trans to handle the shit load of tourqe it produces, Otherwise you will probably mess up your trans up in no time, otherwise sure you can do a top end swap and get the LIM and supercharger and harmonic balancer and fuel rail and tensioner bracket but it would be cheaper buying the whole motor....

raskull wrote: Could my engine structurally and physically handle the extra power, or would it shoot a cylinder through the hood. There's less than 85,000 miles on that engine and frame.

It could handle the 8psi or so the supercharger will out but you also have to think this is a daily driver so you have to factor in the durability of your componets already, IMO i wouldnt do anything to a internally stock vehicle with a lot of miles on it already.... the choice is on you, but you need to atleast get the trans upgraded or buy a 4t60HD first before you start adding power.

hope this helps

[88 Coupe]

Since they accomplish the same goal, in the same manner, both are superchargers and the term "blower" applies to all.

There are two main designs that are crankshaft driven, and one that is exhaust driven. The latter is the centrifugal type, and is called a turbocharger (or a hairdryer) in order to define its drive method.

L67 uses a small "roots" or "positive displacement" type, which is one that is driven by the crankshaft.

Each has its own advantages, and disadvantages. But that would be another topic.

raskull wrote: ........ turbochargers are going for less than $300 on ebay ........
You can probably find a new one (the correct size for your application) locally for less than $100, but that is only a small part of the story.

Once you have it, you will need the brackets to make it bolt onto your engine. Then a reroute of the exhaust, into and out of it, which will involve custom fabrication. Then comes the engine management system. Sensors and computer will have to be made compatible.

If you can do the fabrication and interface yourself, the cost will be your time, plus the cost of materials. If someone else does it, the cost will be his hourly rate, plus the cost of materials.

Replacing your engine/trans with an L67 combo, is probably the cheapest/easiest to your goal. while keeping the same car.

Most practical choice, is to buy a car that already meets your needs, an L67, for instance.

Norm

[88 Coupe]

91buickman wrote: the v8 swap is more than possible as well some of the fiero guys have used Lt1's hooked up to the 4t60-e trans ........
Yes. There are DIY conversion kits available for Chev V8 to Fiero.

There used to be several Fieros, with 455 Olds engines, in this area. There was a DIY "kit " made for that combo, also.

I wonder why V8 conversions are not common with GM FWD vehicles.

Norm

[88 Coupe]

Back on topic:

This link might be of some help.

Norm

[91parkave]

88 Coupe wrote:
I wonder why V8 conversions are not common with GM FWD vehicles.

Norm

Was wondering the same but probably because of the shitty weight balance of the car already, if i ever had the chance id go for the Ls1 swap hell at least there damn near the same weight......... :twisted:

[raskull]

88 Coupe wrote:
I wonder why V8 conversions are not common with GM FWD vehicles.


Is it because V8s are generally facing forward as opposed to the lateral facing V6 so that the power goes to the rear wheels? Is it even possible to have a FWD V8?

[Brando]

http://www.cardomain.com/ride/665715/

TOC Admin
Brando

[88 Coupe]

raskull wrote: Is it because V8s are generally facing forward ........
The biggest reason is, they will not physically fit (transverse or lateral) without extensive fenderwell/firewall/steering modifications.

The Fiero, 91buickman referred to, is rear engine/rear drive. Nothing to do with the topic.

Quote: ........ Is it even possible to have a FWD V8?
Aurora V8 (10 more HP than the L67, if anyone cares) would fit, and be a better choice than any of the Buick engines. But because it has eight crank throws instead of 4, it doesn't sound like a traditional V8.

Norm

[91parkave]

raskull wrote: 88 Coupe wrote:
I wonder why V8 conversions are not common with GM FWD vehicles.


Is it because V8s are generally facing forward as opposed to the lateral facing V6 so that the power goes to the rear wheels? Is it even possible to have a FWD V8?

Nothing to do with RWD or FWD configs, take cadillac's and the 05+ bonnevilleves they all have v8's and using FWD but handling really isnt a focal point for those cars guess thats why v8 swaps arent practical for a FWD daily driver thats why forced induction kicks ass :twisted:

[88 Coupe]

91buickman wrote: Nothing to do with RWD or FWD configs ........
As far as new car sales are concerned, it has everything to do with it. But we are not talking about new car sales.

91buickman wrote: ........ take cadillac's and the 05+ bonnevilleves they all have v8's and using FWD ........
With one exception, Cads are all V8/rear, if not, all wheel drive.

They tried the Northstar in the FWD Bonneville for two years. It did not sell either. Its replacement, G8, will be V8/rear drive. And your 5+ should be 5-, since the V8 was only used in '04 and '05.

But we are not talking about new car sales, are we.

91buickman wrote: ........ but handling really isnt a focal point for those cars ........
Handling has nothing to do with this topic. If you wish to discuss it, you can start another thread, in the proper forum.

91buickman wrote: ........ guess thats why v8 swaps arent practical for a FWD daily driver ........
No one said they were not practical. There are more than a few in my neighborhood. No one sees them because they don't have any advertising on them. Sort of, like this one:



This one is not in my neighborhood, but it should make my point. 91buickman wrote: ........ thats why forced induction kicks a**
It is very popular with the cool aid drinkers, isn't it.

Norm

[91parkave]

88 Coupe wrote:
With one exception, Cads are all V8/rear, if not, all wheel drive.

Cadillacs are all rear wheel drive or all wheel?? ummm besides the fleetwood broughm most cadillacs have been V8/FWD since the late 70's



88 Coupe wrote:
No one said they were not practical. There are more than a few in my neighborhood. No one sees them because they don't have any advertising on them. Sort of, like this one:
This one is not in my neighborhood, but it should make my point.

Um james car has a l67 up front and the rear is a LN3 both of which are V6's what are you talking about? and what is your point in all that you said?

88 Coupe wrote:
It is very popular with the cool aid drinkers, isn't it.

that speaks for itself.................


-MArshall[/quote]

[88 Coupe]

91buickman wrote: ........ most cadillacs have been V8/FWD since the late 70's ........
And they are correcting that mistake. Here it is again:

88 Coupe wrote: With one exception, Cads are all V8/rear, if not, all wheel drive.
http://www.cadillac.com/index.jsp?noredirect=true

91buickman wrote: ........ james car ........
The car does not belong to James.

91buickman wrote: ........ has a l67 up front and the rear is a LN3 both of which are V6's ........
Yes, we know that. It is common knowledge on almost all of the Olds sites and, among Olds/Buick/Pontiac and Holden enthusiasts all over the world.

Has been for over three years.

What is your point?

91buickman wrote: ........ what is your point in all that you said? ........
Which part, do you not understand.

91buickman wrote: ........ 88 Coupe wrote: It is very popular with the cool aid drinkers, isn't it.
that speaks for itself
In the context of the statement, yes, it does.

Norm

[Hans]

explain to me how you are going to program your PCM in your car to work with a turbo.

How are you going to manage the timing tables, injectors, etc? dont tell me your stock injectors will support the added HP of a turbo.....

Sure the turbo will bolt on the the improvment will be minimal.

Series II is a bit easier since there are several options out there for tuning.

[88 Coupe]

Hans wrote: explain to me ........
He has already explained it fully, several times, both on TOC, and on Bonneville Club.

I am surprised that you missed all of them.

Norm