Just bought a S/C SHO and have some questions.

[93rev2sev]

I'd like to get the straight scoop from someone who has a shaft drive S/C...and abundant knowledge of SHOs in particular.

I just bought a 92 SHO with a BD 11 S/C. I'll be rebuilding the S/C and upgrading the rest of the induction. I am assuming that everything besides the S/C is stock. Currently, the S/C is disconnected. The jackshaft bearing let loose. The jackshaft has been removed. The S/C spins freely by hand, and I am confident that it is in good shape. I'll obviously be replacing the bearing straight away, but soon after, it'll be time to "finish" things(supporting mods and a thorough cleaning). The car drives very smoothly without the S/C, but it has little power. I know there is a SHOShop LPM in the glovebox(X2J 80mm Bolt-ons) and a different(plastic encased?)one is bolted in place in the PCM. It's very smooth and there is no opening of secondaries at 4000RPM(I can't feel it in the but dyno). He did not mention anything about the butterflies, so maybe the chip opens them just off idle?

Aside:
I have a lot of stuff to go through...I just went to get the chip out of the glove box and the PO had snuck up while I was at work and dropped off a whole box of stuff...

On to my questions...
Fuel Delivery:
Are the 3.2 injectors considered upgrades?
When I start work on it, the first thing I'm going to do is install a 155lph pump, install a nice exhaust and freshen the engine compartment(I have a 3.2 to install later...). Should I go ahead and install the 3.2 injectors at that time? From what I remember, it seems like the 3.0 injectors are the way to go...but I can't remember why...maybe something to do with the spray pattern?
When I get into this, I imagine that I may be inclined to replace the fuel lines. Is there a magic diameter?

Air Mgmt:
If the butterflies are intact, should I remove them?
Should I stay away from headers?

 

[ManySHOs]

Wow, you bought that car? Cool!

I would install a 255 lph pump with Josh's adjustable FPR.

http://www.apeusa.com

http://www.shonutperformance.com/FPR.htm

Your stock fuel lines should be ok. The 3.2 injectors are a slight upgrade over the 3.0's but not much. Depending on how much boost you're running, I'd consider stepping up. Actually, even with very low levels of boost, I'd step up to something bigger. I'm still NA so there are quite a few people here who can speak from more experience than me.

For tuning, you may want to start thinking about a wideband O2 sensor and a TwEECer.

Does this car have any other supporting mods?

Ian

 

[93rev2sev]

I haven't had a chance to look it over very well. The S/C is the least of my worries right now. I had thought about taking the S/C off of this car and saving it for a Gen1 but I've never owned a 92. In fact, of all the SHO years, I like the 92s the least. It seems you never see a real nice 92. With a little elbow grease, I aim to prove myself wrong.

 

[K-Dawg]

What car is this?

 

[Jonny Cash]

On to my questions...
Fuel Delivery:
Are the 3.2 injectors considered upgrades?
When I start work on it, the first thing I'm going to do is install a 155lph pump, install a nice exhaust and freshen the engine compartment(I have a 3.2 to install later...). Should I go ahead and install the 3.2 injectors at that time? From what I remember, it seems like the 3.0 injectors are the way to go...but I can't remember why...maybe something to do with the spray pattern?
When I get into this, I imagine that I may be inclined to replace the fuel lines. Is there a magic diameter?

Air Mgmt:
If the butterflies are intact, should I remove them?
Should I stay away from headers?

I would put some bigger injectors in there. Not that the 3.2's cant handle low boost, they dont spray as efficiently when theyre pegged and it could be harder to tune (Ive been told). You will get the itch and want more boost, might as well put the bigger ones in now. And a 190 pump at least.

Headers youll see a gain, but certainly not 20hp. Is it worth the money? Wish someone had some before and after dyno graphs.

 

[93rev2sev]

According to the PO, at eight to nine pounds of pressure, there were no fuel problems.

He also stated that there was an in-line fuel pump "helper" installed.

 

[93rev2sev]

What car is this?

Not previously known to the SHOForum community...except by me...and maybe a few others...

After the car was built, it was driven. A lot. The S/C has about 30,000miles on it.

Right now, I need to find a pillow block bearing and get the S/C back up and running.

 

[Jonny Cash]

According to the PO, at eight to nine pounds of pressure, there were no fuel problems.

He also stated that there was an in-line fuel pump "helper" installed.

i seen my friend Corey's SHO motor pop like a baloon with 9#'s and stock injectors. He mustve been easy on it.

I think he was reffering to a boost-a pump. The one I have bolts right up to the stock fuel lines.

 

[93rev2sev]

Well, until I get some RT data, I'll not be using the smaller of the pullies.

 

[tempname]

Pics?

i would like to see the setup that's all

 

[ManySHOs]

i would like to see the setup that's all

Post 18:

http://www.shoforum.com/showthread.php?t=80518

Ian

 

[SHO92]

AFter seeing the pictures of the blower, I think that setup used to be on a Red car from Ohio(?). The guy with the red car was trying to sell the setup a few years ago at one of the conventions.

I have a picture at home that I think is the setup you have now. I'll post it this weekend.

 

[ManySHOs]

AFter seeing the pictures of the blower, I think that setup used to be on a Red car from Ohio(?). The guy with the red car was trying to sell the setup a few years ago at one of the conventions.

I have a picture at home that I think is the setup you have now. I'll post it this weekend.

Yeah, I recognized that as the same setup but I thought it was part of some kit. Now that I think about it, FPS was the only SHO specific vendor that ever offered a shaft driven blower setup and that's not one of them. So, you're probably right Bill.

Ian

 

[ManySHOs]

This also reminds me of something; I seem to recall that there was some talk about that particular blower and some of its downfalls. You might want to research that particular SC before having it rebuilt and getting a new jackshaft. It might be worth your while to get a Vortech T Trim and a different jackshaft instead. It may require some extra fab work or it might bolt right up. I have no idea.

Ian

 

[93rev2sev]

So some people recognize the setup. Yes, it has been correctly identified. According to the PO, He bought it from that guy in Ohio. Who bought it from the guy that fabbed it up, years ago...an old Ford engineer, if I heard him right...

Anyway, I hooked up the jack-shaft and there is definately room for improvement on that whole pulley setup. I think the jack-shaft itself will be fine(although, it's a heavy mother). The bearing(s) at the front of the jack-shaft are definitely the weak spot. When you tighten the belt, it really pries on the bearing. It's getting dark now so pictures won't help much...I'll take them anyway and post em up in a few...

 

[K-Dawg]

Those brackets on the blower look kind of flimsy. If the thing is moving all around, I'm sure that isn't helping the situation.

 

[93rev2sev]

 

[ManySHOs]

I would change the fuel line routing and encase it in plastic loom. There's too much potential for it to get snagged or pinched on something.

Ian

 

[Brett]

Looks kinda rigged but you get what you paid for, obviously you weren't expecting a top of the line setup. Is the coil pack just kinda hanging out? Definitely looks like that engine bay could use a good cleaning and some re-routing of alot of things.

Not a big fan of the supercharged sticker on the cowl, I wouldnt wanna give it away! Sweet find man, fix it, make sure it isnt running lean, be nice to 3rd and have some fun!

 

[93rev2sev]

This setup has been running for 30,000 miles. He just kept replacing that front bearing, and finally got sick of it(I assume). I think I'll extend that block of steel, out to the end of the shaft and add another bearing. That should make better in the short term... I do plan on re-designing a couple of things, so I appreciate the suggestion about the fuel lines. I thought about that, too.