I am starting on a project to supercharge my xB for under $1000. Something to understand is this would not be as pretty as a Greedy or Blitz kit. I am going to use an M62 blower from Eaton that is found in readilly available quantities from any junkyard that has Bonneville SSEi's and other GM 3800 series 1 supercharged cars.

I am big into the 3800 world and have built 4 12 second 3800's and am very familiar with this blower. I just purchased a junk unit to test fit and fabricate.

Most of these blowers can be found for $200-400. I am designing and fabricating a mounting plate that will have a pipe come out of the outlet of the blower and funnel into the intake that is currently on the motor. As such here is what you would need:

Alternater Pulley with second rib set on it to drive the SC pulley (trying to see if the one Greedy makes can be bought, otherwise I will have a custom one made)
Eaton M62 blower
Custom Throttlebody adapter to put our TB on the M62 (not very much)
Custom Intake adapter to be able to accept a pipe (not very much)
Belt to drive the blower
Misc pipes.

As such I would be making this as cheaply as possible but still try and make it look good. Cost is going to be down from using steel and stainless steel instead of aluminum. It will be heavier but not by a gigantic margin.

I am not looking for finacial gain. I would post my plans and prints for everyone to have their own brackets made to have this work. I of course would make some for people upon request but I don't know if there is a 'sellers' rule here, didn't look, so that is not for discussion here.

I am doing this for myself regardless, I am curious though if others are interested. My target is 6psi. I know this blower is bigger than it needs to be thus I will have it spin at a much slower RPM to produce the 6psi, which should aid in NOT needing an intercooler, however, such an intercooler could be added if need be.

I'll try and work up a quick model tonight/tomorrow to show what I mean as it's probably hard to picture in your head. Anyway, thoughts welcome. I just figure why not use parts that are out there for cheap and adapt them for those of us that just want some power and don't really care a huge amount about show. The owner could powdercoat everything if they saw fit.

....

 

if you have the knowledge im sure this can be done, most of us dont have the knowledge or resources so we have to spend a lot more $$$$

i dont really care about looks on the inside, so this is interesting to me ...well somewhat anyway, i'm likely to just stay NA

 

A company called Speciatly Products (I Think) will make any pully you want.

 

I have a few contacts in the 3800 world that can do this also, but it never hurts to investigate new avenues Thanks!

 

please keep me tuned in on this!!!!!

 

can't wait for the pics make sure it'll fit the xA also

 

This sounds super interesting. I will buy it in a heartbeat if you start selling it!

Let me know if you need help getting things machined. I have a very good machinist contact!

 

These are very crude thrown together 3d renderings. I don't have all the brackets on them, just some lines representing where one may go. It's not exactly possitioned either, but gives you an idea of what I am after in some form.

This MIGHT fight the xA, I have one also, so I will look at it.







**AGAIN, VERY CRUDE drawings... just something to give you the general idea. I don't show the TB and all that but it would be on the blower where I have the grey coupling.**

 

i like the idea, good luck!

 

what kind of power gains are you looking to get?

 

It's good to see some people trying new things...and with the abundance of auto recyclers out there, this shouldn't be too hard to find parts. Good luck with it and keep us posted!

 

interesting concept - i know nothing of the "3800" world, so maybe ill need a crash course, though ive been looking to do something similar

 

you took the thought out of my head using the 3800 blower... the only thing im having a hard time trying to figure out is that the 3800 is a v6 and we gots the lil 4 banger... the 3800 is a lil much for a the I4 so the tune down seems like agood idea too... i have and idea on the "intake to outtake" (from SC to intake manifold) instead of machining an "intake" type block why not try a "header" style piping... this sounds wierd but a 6-3-1 ... might work realy well this way too... dunno just a thought on saving money

 

Not sure, I would figure because the boost should be a fairly low temp compared to a smaller blower, I should get some decent gains. I'd like to see 120-130whp. Some may say that isn't much, but for the cost, it is decent in my opinion.

 

as anyone measured the vaccume psi of the stock intake? i havent had a chance to do this yet - but it's a big q to me to see how many psi i have to push outta the way

(or the intake vaccume measured in BAR ..) if anyone's done it PM me PLS!

 

Also, to all who may try something like this or have a lack of knowledge on the 3800 motor...Ford has the Thunderbird SC and I'm sure there is a great deal of them in the junkyards (being fords...lol) and lots of info on the net.

Here's one I just found on ebay...

http://cgi.ebay.com/ebaymotors/Thund...spagenameZWDVW

These things are CHEAP!!! It's just a matter of getting them to work AND work RIGHT!

 

There are 4 different 3.8L buick motors. The first was in the grand national that was turbo'd. The second is the Series 1 which had an Eaton M62 (the blower I will use). This blower is actually pretty small for a 3.8L motor and as such, it needed a VERY small pulley to give it ~8psi. Hence, they went to the Series 2 motor using an Eaton M90, this blower is much bigger and was used up till 2003, then the Series 3 motor came out using a Generation 5 M90, more efficient, more boost.

So, we are using the smallest blower ever to be on a 3.8L motor from GM. It was spun way to fast and made way to much heat. Putting a slightly larger pulley on the M62 and driving it slower should still produce an easy 6lbs of boost at a low enough temperature as to not need an intercooler.

I am not sure what you mean by a 6-3-1... there is no point. The outlet on the blower comes right out the bottom, all of it can be collected and distributed into the stock intake. I do not intend to make anything extra. The stock intake will be fine at distributing the boost from the outlet of the blower.

Should I make more detailed pictures or is the idea clear enough?

 

The Thunderbird uses M90's and my kit will not work with these.

The tunderbird had a limited run with twin M62's, however, also different for that motor.



To the comment about vacuum PSI, there is no PSI in vacuum, it is measured in inHG. Not sure why you need to know this, but at Wide Open Throttle you technically have no vacuum, it is being filled by standard air pressure (atmosphere) being 14.7psi, or more or less depending on altitude. Also called 1 Bar if I recall.

 

Again, I will only be making mine work with a M62 from a 3800 series 1 years 92-93. The ford versions use different length snouts and intake designs, these will not work with what I am attempting to do.

***BY THE WAY*** I only have three intake runners shown in the CG shots, but you get the idea, there should be 4.

The 3800 motor itself has nothing to do with this either, just the M62 blower from the top of the engine. There is no need for crazy 6-3-1 intakes and such. I'm keeping this as minimal as possible to stay cheap.

 

^^^I was only pointing out that Ford made them as well, and if some of us have a better knowledge of or know someone that knows fords, this would be an option as well. As you said, it has nothing to do with a GM 3.8 liter, other than the donor part....