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Old 03-15-2009   #41
90 L98 TransAm
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Re: Vortech Supercharger

Good to hear the Walbro is supposed to be noisy. I replaced my stock Subaru pump with one but it's in the fuel tank under the rear seat and i never really hear it running at all.

Autozone's battery tester says the Optima red top i bought 2-1/2 years ago
for $140 is "bad". Supposed to have a 3-year replacement guarantee but we'll see what the vendor (Remy Battery) says tomorrow. Bad news is I also put one in my TA last year.

The Vortech install manual says to "mount the fuel pump to the flat surface ahead of the inner fender" next to the fuel management unit and shows it there in their diagram.

Installed the fuse holder and tested the boost gauge. It sweeps and goes to 0 like it's supposed to.
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Old 03-15-2009   #42
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Re: Vortech Supercharger

Thats neat. My walboro is a 255lph in tank jobber, wonder if that would be good enough for a blower in the future or if I would have to use an axillary pump?
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Old 03-15-2009   #43
90 L98 TransAm
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Re: Vortech Supercharger

Good question.

As best i can tell the aux Walbro that comes with the Vortech kit (GSL-393) is rated at 160 lph. What flow is the stock GM pump rated for? If it's more than 95 lph your in-tank Walbro (same one I use in my Subaru) might not be enough by itself.

I'd check with Vortech or ask the techs on the forum at superchargersonline.
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Old 03-23-2009   #44
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Re: Vortech Supercharger

Quote:
Originally Posted by merc3065
Thats neat. My walboro is a 255lph in tank jobber, wonder if that would be good enough for a blower in the future or if I would have to use an axillary pump?
if you got the wiring kit to run a pump booster it's good to around 725 hp, with an external booster. i bought the kit that comes with the connections to run one... you never really know.
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11.16 at 123 mph.
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Old 04-06-2009   #45
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Re: Vortech Supercharger

OK I'm back in business! It took 2-1/2 weeks to get the supercharger pulley. Vortech never did send the right spacer so I ended up using five 1/2" washers on the idler pulley.


Here's what it looks like with both the accessory belt and the SC belt in place:

http://i150.photobucket.com/albums/s...e/100_1423.jpg

http://i150.photobucket.com/albums/s...e/100_1422.jpg



Here's the vacuum manifold I'm going to try using. It ties into the cruise control vacuum line to supply vacuum to the fuel management unit and the MSD ignition retard box:

http://i150.photobucket.com/albums/s...e/100_1421.jpg



Remy battery said the Optima Red Top for my Subaru was no good and they are sending me a replacement. When it arrives I can transfer the one I bought for my TA back into the TA. Probably won't ever buy another car battery through the mail since it takes three weeks to get a replacement.

About all that's left now (I hope) is to hook up the air filter and intake plumbing, trim the upper radiator hose to fit, reinstall one of the radiator fans, and re-fill the cooling system.
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Old 04-07-2009   #46
FearThisGTA
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Re: Vortech Supercharger

Cool, very cool. When you get it runnin, post up a video so we can see and hear it.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-07-2009   #47
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Re: Vortech Supercharger

look at getting some exhaust work later on in the year to replace those grungy old manifolds I think the setup looks real purty
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Old 04-07-2009   #48
90 L98 TransAm
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Re: Vortech Supercharger

Quote:
Originally Posted by merc3065
look at getting some exhaust work later on in the year to replace those grungy old manifolds I think the setup looks real purty
Thanks merc.

I bought some used SLP headers a couple of years ago but sold them because I didn't want to hack up my factory dual cat exhaust and didn't want to replace the whole exhaust at that time.

The EPA is pushing the State hard for measures to reduce the air pollution levels in this county (despite the relatively low population). I suspect we will have emissions testing within a few years so whatever I do it will have to pass emissions. On the other hand, it won't be long after they start that before I move to a place that may never have emissions testing.
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Old 04-07-2009   #49
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Re: Vortech Supercharger

Im doing the same right now, I dont have the AIR system myself.

However, with the headers, even if they don't have AIR fittings, you can still leave the same smog pump in place and do what the LT1 guys have done.

They weld a single large bung on the back of the rear collector and hook up to the rest of the AIR system's pipes. Keeps it clean looking and less clutter in the engine bay with all those annoying AIR pipes everywhere.
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Old 04-07-2009   #50
90 L98 TransAm
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Re: Vortech Supercharger

Yes, those AIR pipes are a pain. Had to disconnect them to get at some of my plugs. Will have to keep the LT1 method in mind for future exhaust work.


Finished the install today:

http://i150.photobucket.com/albums/s...e/100_1426.jpg

http://i150.photobucket.com/albums/s...e/100_1427.jpg


First the good news...

She started right up and sounded good. No interferences, coolant or gas leaks.
.
.
.
.
.
.
.
.
.
.
.
Then the bad news...

Power steering hose blew off a hard line and made a nice mess.

Looks like there was too much of a kink where the other end of the hose connects to one of the power steering pump hard lines right beneath the supercharger bracket. I had tried to pry it down to get more clearance but the power steering pump body seems to be made of plastic and I was afraid I'd crack it.

Need to figure out how to bend the hard line down but access is terrible.
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Old 04-10-2009   #51
90 L98 TransAm
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Re: Vortech Supercharger

I gave up on bending the end of the power steering pump hard return line. it aims straight toward the bottom of the SC bracket which kinks the hose when the SC is lowered onto it. I was hoping the SC would bend the hard line down but that didn't happen.

So I removed the accessory belt and rotated the relocated alternator out of the way. tried bending the power steering pump return line down out of the way from the bottom. then I tried prying it down from the side. and finally I tried to pound it down from the top with a piece of wood. the thing will not budge as it is either brazed or welded to the side of the power steering reservoir. even if it had come free it might have left a hole in the side of the reservoir. it might be possible to dremel the line free from the reservoir if you had the pump out of the car.

Decided to dremel a 1" long section of the return hard line out closer to the pump and just connect a section of new power steering hose into the hard line there. the downside is that there is no raised lip on the hard line to help hold the hose in place with the hose clamp. I used two hose clamps instead of one.

Added some fresh power steering fluid to replace the 19 year old stuff (what was left of it anyway). Put in my earplugs and started her up for the second time and let it idle until all the spilled power steering fluid burned off. No check engine lights. Boost gauge was showing ~10 psi of vacuum.

Tie wrapped the upper radiator hose forward away from the SC belt using the radiator support (trimmed for SC belt clearance). Also tie wrapped it up to the SC discharge plenum to keep it from touching the top of the idler pulley:


http://i150.photobucket.com/albums/s...e/100_1429.jpg


Still need to top off the coolant and power steering fluid then take the front end off the jack stands. Will put the car back on full coverage insurance then do a few short test drives to see if it all holds together.
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Old 04-10-2009   #52
FearThisGTA
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GTA Year: 1991
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Re: Vortech Supercharger

Just a thought, but imo, that dbl clamp on the ps hose will only be a temp fix. "IF" it were me, I would take it off and take it to a hyd shop and have them fab up a new hose exactly like you need it. Just a thought.
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-11-2009   #53
90 L98 TransAm
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Re: Vortech Supercharger

Thanks for the suggestion FearThis.

This is on the return side of the loop not the pressure side. The factory uses the pre-fabbed (double crimp hoses) on the pressure side but just a single hose clamp with PS hose on the return side.

It would be simple enough to remove the return hose and take it to a hydraulic shop but not sure what good that would do me at this point. If the return side hose comes loose I'm stuck removing everything back to the point where I can access the PS pump. in that case I'll be buying a new one and modifying the PS pump pressure and return hard lines before I install it between the PS pump bracket and the SC mounting plate.

As I said earler, it sure would have been nice if Vortech had put a simple sketch in their install manual showing where to route the PS lines in relation to the SC and especially how to bend the PS pump hard lines prior to bolting it between the PS pump mounting bracket and the SC mounting plate. They say "don't disconnect the PS lines" but I think I would have been better off disconnecting the lines and modding the PS pump hard lines on the bench.
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Old 04-13-2009   #54
90 L98 TransAm
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Re: Vortech Supercharger

Put my car under full coverage with Progressive yesterday. $12K stated value for $44/month and I will probably drive it for five months this year.

Topped off the coolant and added more power steering fluid. Started it up for the third time. No leaks or problems until I backed out of the garage. Checked for leaks and saw a steady drip which i assumed was power steering fluid since that was what I was most concerned about.

Drove back into the garage and shut her down. Put a catch pan under the leak and realized that it couldn't be power steering fluid since it was not brown (old PS fluid) or clear (new PS fluid) but red.

Vortech uses a ~30" braided steel drain line attached to the bottom of the SC so you can drain the lubricant without removing the supercharger. Sounds like a good idea but can lead to an expensive disaster if it fails the way mine did the first time the car moves! The drain bolt at the end of the line is stamped "China" and I suspect the rest of the drain line is also made there.

So I call Vortech and ask them if they have a plug or threaded metal cap I can use on the drain port (it doesn't take long to unbolt the supercharger if you need to drain the lubricant). As usual Vortech isn't much help and they say they don't have a plug that could be used instead of the fragile drain line. I go to Home Depot with the part at the top of the broken drain line and find out I need an internally threaded 7/16"-20 fine thread cap for the drain port. Home Depot doesn't have any, neither does the plumbing supply store or a hardware store. So I ordered one from McMaster Carr. Had to order some more SC lubricant from Vortech also and it's $10 for a 4 oz bottle.

Decided to go ahead and replace the power steering pressure line today while the SC was out and access was (relatively) good once I remove the alternator.

So looks like I'll try again next week.
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Vortech V-3 SC, 11+ psi boost
0 - 60 in 5.40 Seconds
1/4 mile in 13.9 seconds @ 103 mph @ 5,000' elevation, 309 HP (per Escort GT-2 meter)
Shift kit, 9 clutch 3/4, Corvette servo
Magnaflow 16829 catback exhaust
TDS fr. sway bar bushings and end links. Wonderbar
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Old 04-14-2009   #55
FearThisGTA
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: Vortech Supercharger

Napa didnt have that pipe plug?
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-14-2009   #56
90 L98 TransAm
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Re: Vortech Supercharger

Quote:
Originally Posted by FearThisGTA
Napa didnt have that pipe plug?
Their online store shows four pages of externally threaded plugs but I need an internally threaded metal cap. seems like an oddball size as there were only a few items of that type and size listed by McMaster Carr.

Anyway the weather has turned to crud here and I have to go back to the old salt mine so I won't be taking the car out until next week regardless.
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Vortech V-3 SC, 11+ psi boost
0 - 60 in 5.40 Seconds
1/4 mile in 13.9 seconds @ 103 mph @ 5,000' elevation, 309 HP (per Escort GT-2 meter)
Shift kit, 9 clutch 3/4, Corvette servo
Magnaflow 16829 catback exhaust
TDS fr. sway bar bushings and end links. Wonderbar
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Old 04-14-2009   #57
90 L98 TransAm
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Re: Vortech Supercharger

Wow, it only took one day for McMaster Carr to get the threaded cap (stainless steel acorn nut) from LA to here! Guess that's some consolation considering it was almost $5 to ship a 1 oz, $3 part.


Here's the broken remote drain line that comes with the supercharger and the acorn nut in place over Teflon tape. Pretty much a perfect fit. I'll put a plastic cap over the nut for secondary containment.


http://i150.photobucket.com/albums/s...e/100_1439.jpg




Here's a lousy picture looking down at the drivers' side of the power steering pump. The bronze spot under the red warning circle is where the return hard line is brazed? to the pump. The silver spot below the bronze spot is the open tip of the hard line. It ends up no more than 3/8" from the bolt passage in the supercharger power steering pump bracket and points straight at it. So if you are going to install one of these Vortechs SCs make sure you bend the return hard line before you bury it within the SC bracket. This picture was taken after I replaced the power steering pressure line. There shouldn't be any interference between the bottom of the SC and the power steering lines routed this way.

http://i150.photobucket.com/albums/s...e/100_1435.jpg
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Vortech V-3 SC, 11+ psi boost
0 - 60 in 5.40 Seconds
1/4 mile in 13.9 seconds @ 103 mph @ 5,000' elevation, 309 HP (per Escort GT-2 meter)
Shift kit, 9 clutch 3/4, Corvette servo
Magnaflow 16829 catback exhaust
TDS fr. sway bar bushings and end links. Wonderbar

Last edited by 90 L98 TransAm; 04-14-2009 at 07:16 PM.
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Old 04-20-2009   #58
90 L98 TransAm
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Re: Vortech Supercharger

OK FearThis, not real exciting but here you go:


http://s150.photobucket.com/albums/s...t=100_1441.flv
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Vortech V-3 SC, 11+ psi boost
0 - 60 in 5.40 Seconds
1/4 mile in 13.9 seconds @ 103 mph @ 5,000' elevation, 309 HP (per Escort GT-2 meter)
Shift kit, 9 clutch 3/4, Corvette servo
Magnaflow 16829 catback exhaust
TDS fr. sway bar bushings and end links. Wonderbar
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Old 04-20-2009   #59
FearThisGTA
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GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: Vortech Supercharger

Hot dang!! Sounds G-R-E-A-T!!!!!!!!!!!! Ya know ya gotta race it now. I just may have to add this to my to do list. Congrats!! Its a job well done!!
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Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Hp:211.2@4200rpms/Tq.328.5@2700rpms
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 04-20-2009   #60
90 L98 TransAm
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Re: Vortech Supercharger

Thanks. I guess that means it sounds like it should? Hold off on the congratulations though until i see some results.

Took her out for an easy spin mostly to check for leaks and interference. The cruise control still works. Need to reinstall the lower bumper trim and chin spoilers around the emissions cannister. Also have to find a place for the windshield washer reservoir before my next state safety inspection. Looks like I may have to extend the washer pump electrical wiring over to the passenger side since the driver side is pretty congested now.

Couldn't go very fast on this drive. Boost gauge was showing vacuum but no boost. It's hooked up to the same vacuum line as the cruise control so that shouldn't be the problem. Just shortened the gauge vacuum line by about 90% now that I know the location will work so maybe that will improve the gauge reading. Otherwise must be either not enough throttle, a gauge problem, or the SC isn't putting out any boost
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Vortech V-3 SC, 11+ psi boost
0 - 60 in 5.40 Seconds
1/4 mile in 13.9 seconds @ 103 mph @ 5,000' elevation, 309 HP (per Escort GT-2 meter)
Shift kit, 9 clutch 3/4, Corvette servo
Magnaflow 16829 catback exhaust
TDS fr. sway bar bushings and end links. Wonderbar
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