Speartech LS9 Supercharger Swap!

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Oct 16, 2009 | 09:59 AM

#61

Speartech

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From: Anderson, Indiana

Quote:

Originally Posted by rsz288

Now that you have teased us all into a state of envy and frenzy, are you going to do an aftermarket LS9 S/C kit John?

After chasing down most of the parts for two systems now, it wouldn't take much to put a kit together!

Some of the parts are still costly and hard to get. Maybe that will change in the near future.

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

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Oct 16, 2009 | 10:15 AM

#62

FastKat

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I'd imagine a kit for the TVS 1900 off of a Cadillac CTS-V would be a little easier to put together. It looks like it uses the same power steering, alternator, and A/C components (including mounting hardware and belt drive) as the previous CTS-Vs. The intercooler is a little cheaper too.

Oct 19, 2009 | 03:05 PM

#63

Speartech

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From: Anderson, Indiana

Quote:

Originally Posted by CarsandWomen

i love that yall did all that custom work to the blower just cuz you didnt like the IC plumbing location and apperance LOL. thats super clean though, job well done and super fierce sleeper! did you do anything performance wise to it other than the heads? pulley, port blower etc?

come to Texas out tracks are always open and HRP is a fast track

I'll be upgrading the pulley soon.

I want to get some times with it the way it is, and then go with the small pulley and see what difference it makes:

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

www.speartech.com

Last edited by Speartech; Oct 22, 2009 at 07:30 PM.

Oct 19, 2009 | 09:00 PM

#64

3.8redbird

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From: Corpus Christi Texas

how many lbs with the stock pulley vs smaller?

Oct 20, 2009 | 02:55 PM

#65

FastKat

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From: Pittsburgh, PA

That's really cool - I didn't realize the throttle body neck was bolted on, and came off like that. Is it as easy as it looks to swap out?

Oct 21, 2009 | 11:53 AM

#66

Speartech

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From: Anderson, Indiana

Quote:

Originally Posted by 3.8redbird

how many lbs with the stock pulley vs smaller?

I'm getting around 10# right now. The smaller pulley is supposed to add 3-4#.

We'll see.

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

www.speartech.com

Oct 21, 2009 | 12:14 PM

#67

3.8redbird

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From: Corpus Christi Texas

Quote:

Originally Posted by Speartech

I'm getting around 10# right now. The smaller pulley is supposed to add 3-4#.

We'll see.

the zr1 gets 10.5 stock i believe. that extra 3-4 should pump it up pretty good

what injectors are you running? Fuel pump?

How many #s can the sc make before becoming inefficient

Oct 21, 2009 | 06:28 PM

#68

Reckless

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From: Canton, GA

For some reason, I am no longer able to see the pics John.

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Oct 21, 2009 | 09:01 PM

#69

dragcamaro

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i dont see the pics either

so with this thing being so much lower than a typical roots/twin screw kit, is there 4th gen f body potential?
i figure someone would have done it by now if there was

Oct 22, 2009 | 06:43 PM

#70

Speartech

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From: Anderson, Indiana

Quote:

Originally Posted by 3.8redbird

the zr1 gets 10.5 stock i believe. that extra 3-4 should pump it up pretty good

what injectors are you running? Fuel pump?

How many #s can the sc make before becoming inefficient

Siemens 60#

Twin Bosch 044's

I don't know. Less than on the ZR1 because this a 408 CI engine.

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

www.speartech.com

Oct 22, 2009 | 06:45 PM

#71

Speartech

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From: Anderson, Indiana

Quote:

Originally Posted by Reckless

For some reason, I am no longer able to see the pics John.

I think the hosting site took a dump or something. I've got the IT staff moving the pics now. Should be back up shortly.

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

www.speartech.com

Oct 23, 2009 | 07:23 AM

#72

No Juice

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From: Minnesota Corn Fields

What size cam you have in this 408?

Oct 23, 2009 | 09:26 AM

#73

Hugger Z

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From: Holly, MI

Awesome swap! Thanks for all of the pics. That was really cool to see the differences. Yeah they did some great engineering fitting that all in the valley. Keeping the mass lower for the handling as well as the hood bulge was a concern when they designed the ZR1. Glad to see it already running and can't wait to see how it performs for you.