2nd supercharger is installed..... Now with pics

[snowboarded]

Doug, what you need to do is chop up a mesh gril to fit the hole in the hood and paint it gold. Just a thought. In my head it looks sweet, but who knows how it will look in real life. Good job tho.

[douglas vincent]

Kelly down at rallitek welded up my Y-pipe! Its installed, all I need are a few more T-Bolts and I am ready to test it!

I am going to be severly dissapointed if it doesnt work........

[555BCTurbo]

Doug...


YOU ARE THE FUCKING MAN!!!!


That thing BETTER be coming to WCLCM!!

[jnorion]

I passed you as you were leaving Rallitek today... the car looked, um, interesting from the outside.

[douglas vincent]

Y-pipe is installed. Drives alot nicer off boost due to the fact the motor doesnt have to pull air through 2 superchargers and 6-8' of pipe. In fact, the vac gauge reads ALOT closer to 0 now than it did before. And more torque and power off boost.

I need some more T-bolts and one 3" to 2.5" adapter before I can attempt full boost. So I have to wait till Wednesday......

I am going to be so pissed if I dont see any increase. While I know it might be futile to do what I am doing, 2 superchargers, I never ever ever ever saw any concrete evidence it wouldnt work.

But if it does, and even if it doesnt, I am now a pretty firm believer in the blow through maf for FMIC. Why? If you blow a charge pipe, you car still runs!!!!!! Its only if you blow off the two connectors that are either on the throttle body, or the MAF which would screw you. So now when I blow off a damn pipe (which I am sure I will, the motor will still run great NA until I can pull over.
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The twins failed. In parrallel, they sucked ass. I would have to go to twin throttle bodies and it would work great, but..... thats work I dont have time or will power to deal with now.

Sequential, I saw a max 12 psi, but only in fifth gear over 4000 rpm. Pretty useless. Normally it was 10 psi, but the power increase didnt overcome the parasitic drag until 4500 rpm or so. And it drove like crap.

So I am back to a single blower, and will upgrade my pulley to 9", and modify the output on the current charger. Should have gone that way to start.

Bleah.......
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Supercharger for sale, FOR DAMN SURE!!!

Yeah, its gonna cost to have a 9" diameter pulley made, to the tune of about $400. But it should be worth it. I was hoping the twin setup would push 14-18 psi, which would offset the parasitic drag, but obviously it doesnt. IF I was willing to put BIG (for me) money and time (even more than I already waste) into the twin throttle bodies, I am about 99% sure twin superchargers would work, because at that stage, it would be like a single supercharger ( x 2) on a 1.1 liter engine ( x 2).

but I don't have the time or money right now to be any more experimental.

So I will simply spend the money (easy enough to do) on the bigger crank pulley, and fab up myself the modified supercharger mount (this will allow a 100% freeflowing output) and I should get 12 psi.

Time will tell....

[jnorion]

It was a cool project while it lasted...

How much for the supercharger?

[douglas vincent]

It was a cool project while it lasted...

How much for the supercharger?

Depending upon which supercharger I keep, $225 to $300.




I picked up a SWEET carbon fiber hood scoop from rallitek thats all busticated up. It will be getting the pirate tape treatment and I will have my hood back, pirate style.....

[BAC5.2]

Doug, how did you set them up?

You could have made the two blowers make 18psi if you wanted. You would just need to properly drive them.

Set each up to make 10psi on their own. That would do it if you run them in series.

Sucks that you couldn't keep the system.

[206er]

please go m90 doug!!

[douglas vincent]

M90 is so HUGE, and if you use it, you need a bypass valve setup since it doesnt have the electric clutch.

However, I have never actually tried/seen an M90 up close and can not verify you wouldnt be able to swap the clutch pully on.