I should not be left unsupervised
Re: I should not be left unsupervised
So when you say Mayhem your talking in Raliegh, NC. If so man i have to see your car, you should bring it to Benson on Thrusday s nights if it does rain.
Supreme Member
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Joined: Dec 2005
Posts: 2,412
Likes: 14
From: Northern CT
Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
Re: I should not be left unsupervised
Soooooo.....are we never going to find out what it made for power? I feel like your ignoring whenever someone asks about what it put down. The vids look ok, but without numbers, it could be a 300HP car...
Looked like you had a stock pulley on it and since that eaton comes on a 5.4 stock I'm assuming it's losing quite a bit of boost being on a 6.0 now and going through a front mount intercooler. Not trying to be that guy, but I'm just very curious to see what it made since this is a rather uncommon setup. If you don't want to list it, you can PM me, but I don't know what there would be to hide.
Looked like you had a stock pulley on it and since that eaton comes on a 5.4 stock I'm assuming it's losing quite a bit of boost being on a 6.0 now and going through a front mount intercooler. Not trying to be that guy, but I'm just very curious to see what it made since this is a rather uncommon setup. If you don't want to list it, you can PM me, but I don't know what there would be to hide.
Senior Member
iTrader: (8)
Joined: Sep 2010
Posts: 732
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From: Cincinnati, Ohio
Car: '89 GTA
Engine: 5.7L LS1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: I should not be left unsupervised
He did his homework.
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Put down 405/430 at 6psi
Ive got a major boost leak some where, but until I dig up the desire to tear it back apart, this is how it sits. It should be 13-15psi with that pulley combo and the enormous FMIC keeps the IATs about 10* over ambient. Its got ALOT more in her, just not really looking to get it out just yet. Im all over the road as is, I cant imagine driving this thing at full power just yet
Watch the vid of the speedo then try to imagine thats only 400hp
I do ignore the power requests because people get wrapped up in meaningless numbers
Ive got a major boost leak some where, but until I dig up the desire to tear it back apart, this is how it sits. It should be 13-15psi with that pulley combo and the enormous FMIC keeps the IATs about 10* over ambient. Its got ALOT more in her, just not really looking to get it out just yet. Im all over the road as is, I cant imagine driving this thing at full power just yet
Watch the vid of the speedo then try to imagine thats only 400hp
I do ignore the power requests because people get wrapped up in meaningless numbers
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iTrader: (2)
Joined: Aug 2001
Posts: 1,081
Likes: 3
From: Peoria, IL USA
Car: 91 GTA
Engine: 377ci
Transmission: T56
Axle/Gears: QP Ford 9" 3.70s
Re: I should not be left unsupervised
Amen man! Seriously I have sceen cars with high numbers that run like complete garbage. It is easy to tune the last row of the Ve table.
It is the overall power under the curve and the tractibility.
I was going to stick up for pocket and say he only finished days ago it seems like, but I guess he has been to the rollers. I wish people would quit asking me about the rollers. I finshed literally 24 hours ago and the rollers are over 50 miles away.
It is the overall power under the curve and the tractibility.
I was going to stick up for pocket and say he only finished days ago it seems like, but I guess he has been to the rollers. I wish people would quit asking me about the rollers. I finshed literally 24 hours ago and the rollers are over 50 miles away.
Senior Member
iTrader: (8)
Joined: Sep 2010
Posts: 732
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From: Cincinnati, Ohio
Car: '89 GTA
Engine: 5.7L LS1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Supreme Member
iTrader: (8)
Joined: Dec 2005
Posts: 2,412
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From: Northern CT
Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
Re: I should not be left unsupervised
Put down 405/430 at 6psi
Ive got a major boost leak some where, but until I dig up the desire to tear it back apart, this is how it sits. It should be 13-15psi with that pulley combo and the enormous FMIC keeps the IATs about 10* over ambient. Its got ALOT more in her, just not really looking to get it out just yet. Im all over the road as is, I cant imagine driving this thing at full power just yet
Watch the vid of the speedo then try to imagine thats only 400hp
I do ignore the power requests because people get wrapped up in meaningless numbers
Ive got a major boost leak some where, but until I dig up the desire to tear it back apart, this is how it sits. It should be 13-15psi with that pulley combo and the enormous FMIC keeps the IATs about 10* over ambient. Its got ALOT more in her, just not really looking to get it out just yet. Im all over the road as is, I cant imagine driving this thing at full power just yet
Watch the vid of the speedo then try to imagine thats only 400hp
I do ignore the power requests because people get wrapped up in meaningless numbers
. I was just curious since this is probably the only setup like this I'll ever see. I also understand that numbers don't mean much, but a 1/4 pass will tell a lot. I just like to see numbers because obviously it DOES take HP to run fast in the 1/4....which you should have no problem once you get that boost leak straightened out.My brother's old 2007 supercharged GT made 405 RWHP in a stick car and was a good bit heavier than your car and he managed a 12.3 @ 111 mph on MT ET streets...could have gone faster with a better 60 though. Even at that power you should be in the 11's with a good tire and a nice launch....and a car thats probably 300 lbs lighter.
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Joined: Dec 2006
Posts: 5,538
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: I should not be left unsupervised
Damn, the deceleration wine is obnoxious. Otherwise, congrats man, sure you are glad to have it this far.
I just did a 4.8 swap in my 94 GMC with a carb, but we are also doing a EFI 6.0 swap in a 98 Silverado, so i will have some wiring questions to PM you in the near future Pocket, so just a heads up, LOL.
I just did a 4.8 swap in my 94 GMC with a carb, but we are also doing a EFI 6.0 swap in a 98 Silverado, so i will have some wiring questions to PM you in the near future Pocket, so just a heads up, LOL.
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Coming soon to a track near you
CTS-V brakes/Z51 with diagrams for the custom bracket along with diagrams for basic LS1 caliper/rotor and LS1 caliper/Z51 rotor

Redesigned pulley system to achieve full tension and eliminate belt slip along with all the boost leaks tracked down

CAD models in the works. Random tidbit, I absolutely hate daylight savings time. Pic was taken at 4:30pm, not 9pm like is appears
CTS-V brakes/Z51 with diagrams for the custom bracket along with diagrams for basic LS1 caliper/rotor and LS1 caliper/Z51 rotor

Redesigned pulley system to achieve full tension and eliminate belt slip along with all the boost leaks tracked down

CAD models in the works. Random tidbit, I absolutely hate daylight savings time. Pic was taken at 4:30pm, not 9pm like is appears
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Re: I should not be left unsupervised
Ahh the good old days......finding boost leaks.....woo hoooo!
Seems like every other day I was searching for a boost leak on my little SRT-4.
Seems like every other day I was searching for a boost leak on my little SRT-4.
Last edited by New2Chevy; Nov 12, 2011 at 12:15 AM.
Joined: Nov 2006
Posts: 536
Likes: 4
From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: I should not be left unsupervised
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Something like this

I picked up a LS9 idler pulley because it was cheaper than anything else, but sadly its 3.5" diameter is too big to fit the system. Ill have to order more diesel parts. Thankfully, Dayco has their catalog online and I dont have to be a dealer to browse. Makes finding good PNs alot easier. Hint hint Gates... Goodyear...
Next step is mock-up using some acrylic. Easier to cut than alum and more accurate than wood. Cant beat free

I picked up a LS9 idler pulley because it was cheaper than anything else, but sadly its 3.5" diameter is too big to fit the system. Ill have to order more diesel parts. Thankfully, Dayco has their catalog online and I dont have to be a dealer to browse. Makes finding good PNs alot easier. Hint hint Gates... Goodyear...
Next step is mock-up using some acrylic. Easier to cut than alum and more accurate than wood. Cant beat free
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Re: I should not be left unsupervised
Pocket, question I've been pondering: (nice CAD drawings, by the way)
Would a supercharged car with the same power as a naturally aspirated car lose traction simply because of the way the power "kicks in" due to boost?
OK, say my N/A LT1 puts out 420 to the wheels, and your supercharged beast puts out 420 to the wheels, would you lose traction more easily than me because of your supercharger "kicking in" suddenly?
Just thought this was an interesting question.
Love your setup man! You've toiled over it for a long time. And I am still toiling over my swap.
Speaking of which, on my frickin' 383 I'm building, do you think 10AN lines are big enough for valve cover breather hoses that are going to a remote breather canister?
Would a supercharged car with the same power as a naturally aspirated car lose traction simply because of the way the power "kicks in" due to boost?
OK, say my N/A LT1 puts out 420 to the wheels, and your supercharged beast puts out 420 to the wheels, would you lose traction more easily than me because of your supercharger "kicking in" suddenly?
Just thought this was an interesting question.
Love your setup man! You've toiled over it for a long time. And I am still toiling over my swap.
Speaking of which, on my frickin' 383 I'm building, do you think 10AN lines are big enough for valve cover breather hoses that are going to a remote breather canister?
Last edited by New2Chevy; Nov 12, 2011 at 12:14 AM.
Supreme Member
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: I should not be left unsupervised
Pocket I'll give you this brother. You are one addicted **** LOL
I dont spend the time on the boards as much as I used to but your posts are always worth reading hahhaa.
I dont spend the time on the boards as much as I used to but your posts are always worth reading hahhaa.
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Tires will always spin when pushed beyond their bounds regardless of whats in front of them. "Shocking" them is almost a surefire smoke show. You side-stepping the clutch at 4k is about the same as me going WOT from a stop. The tires just cant handle all that tq in either case
-10 lines should be ample. I dont recall any setup running larger. FYI, Im running 3/8" line, which are ~ -6 and havent pushed any seals yet. As the engine wears I probably WILL have to upgrade to handle all the blow-by, but for now I dont see any benefit for the high cost of larger fittings
cam- Im definitely an addict. That feeling is so intoxicating
-10 lines should be ample. I dont recall any setup running larger. FYI, Im running 3/8" line, which are ~ -6 and havent pushed any seals yet. As the engine wears I probably WILL have to upgrade to handle all the blow-by, but for now I dont see any benefit for the high cost of larger fittings
cam- Im definitely an addict. That feeling is so intoxicating
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iTrader: (8)
Joined: Dec 2005
Posts: 2,412
Likes: 14
From: Northern CT
Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
Re: I should not be left unsupervised
New2chevy, superchargers don't really "kick in" to give the car a sudden power increase. They have a very linear power curve which is the plus side of a supercharger. They will make boost off idle to redline but the graph should look similiar to an N/A car with the exception of the torque curve (torque will be very high as opposed to N/A off idle).
Turbo's give the "kick in" effect that you speak off. Once they reach full spool at whatever RPM they achieve that at, they suddenly bring the motor to life so theoretically you could go from 300 HP to 600 HP at 2800 RPM or so while your on the gas. Thats when the tires go from gripping to breaking loose. As far as a -10 breather, that should be plenty, and then some.
And pocket, can't wait to see this thing at full boost level! Your making me jealous with your CAD program.
Turbo's give the "kick in" effect that you speak off. Once they reach full spool at whatever RPM they achieve that at, they suddenly bring the motor to life so theoretically you could go from 300 HP to 600 HP at 2800 RPM or so while your on the gas. Thats when the tires go from gripping to breaking loose. As far as a -10 breather, that should be plenty, and then some.
And pocket, can't wait to see this thing at full boost level! Your making me jealous with your CAD program.
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
I ordered diesel idlers from amazon of all places. Good for text books and car parts it seems
Finally got some free time to work on the bird so I built some plates using acrylic. Will have to use a flat headed bolt on the tensioner due to lack of clearance. I didnt have one so a clamp holds it in place for the pic. Tensioner has significantly more throw with this setup so replacing the belt shouldnt be such a chore like the old one was. The plate not being there gives a little more work room too

Clearing the waterpump and waterneck turned out to be the biggest obstacles

Better view of the diesel parts. Left is steel, right plastic

Looking over a few of the pulleys I used at various times for my supercharged adventures. Idler on the far right is from a ZR1, darn thing weighs more than the steel diesel part to its left. Didnt use because the 3.5" diameter was too big to fit

Old plates vs new ones. Not quite as bulky

Basic routing. Loose idler up top represents the SC pulley

Not sure if I want to use these on this build or save them for the next. LS3 topped 6.0 with a T56 should be a fun little NA car

Hope to burn out the plates on the CNC router at work soon
Finally got some free time to work on the bird so I built some plates using acrylic. Will have to use a flat headed bolt on the tensioner due to lack of clearance. I didnt have one so a clamp holds it in place for the pic. Tensioner has significantly more throw with this setup so replacing the belt shouldnt be such a chore like the old one was. The plate not being there gives a little more work room too

Clearing the waterpump and waterneck turned out to be the biggest obstacles

Better view of the diesel parts. Left is steel, right plastic

Looking over a few of the pulleys I used at various times for my supercharged adventures. Idler on the far right is from a ZR1, darn thing weighs more than the steel diesel part to its left. Didnt use because the 3.5" diameter was too big to fit

Old plates vs new ones. Not quite as bulky

Basic routing. Loose idler up top represents the SC pulley

Not sure if I want to use these on this build or save them for the next. LS3 topped 6.0 with a T56 should be a fun little NA car

Hope to burn out the plates on the CNC router at work soon
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: I should not be left unsupervised
Freaking sick...
Senior Member
Joined: Jun 2003
Posts: 828
Likes: 3
From: Rockville, MD
Car: 1989 Camaro RS
Engine: Ellis Juan
Transmission: t-56
Re: I should not be left unsupervised
I ordered diesel idlers from amazon of all places. Good for text books and car parts it seems
Finally got some free time to work on the bird so I built some plates using acrylic. Will have to use a flat headed bolt on the tensioner due to lack of clearance. I didnt have one so a clamp holds it in place for the pic. Tensioner has significantly more throw with this setup so replacing the belt shouldnt be such a chore like the old one was. The plate not being there gives a little more work room too

Clearing the waterpump and waterneck turned out to be the biggest obstacles

Better view of the diesel parts. Left is steel, right plastic

Looking over a few of the pulleys I used at various times for my supercharged adventures. Idler on the far right is from a ZR1, darn thing weighs more than the steel diesel part to its left. Didnt use because the 3.5" diameter was too big to fit

Old plates vs new ones. Not quite as bulky

Basic routing. Loose idler up top represents the SC pulley

Not sure if I want to use these on this build or save them for the next. LS3 topped 6.0 with a T56 should be a fun little NA car

Hope to burn out the plates on the CNC router at work soon
Finally got some free time to work on the bird so I built some plates using acrylic. Will have to use a flat headed bolt on the tensioner due to lack of clearance. I didnt have one so a clamp holds it in place for the pic. Tensioner has significantly more throw with this setup so replacing the belt shouldnt be such a chore like the old one was. The plate not being there gives a little more work room too

Clearing the waterpump and waterneck turned out to be the biggest obstacles

Better view of the diesel parts. Left is steel, right plastic

Looking over a few of the pulleys I used at various times for my supercharged adventures. Idler on the far right is from a ZR1, darn thing weighs more than the steel diesel part to its left. Didnt use because the 3.5" diameter was too big to fit

Old plates vs new ones. Not quite as bulky

Basic routing. Loose idler up top represents the SC pulley

Not sure if I want to use these on this build or save them for the next. LS3 topped 6.0 with a T56 should be a fun little NA car

Hope to burn out the plates on the CNC router at work soon
Supreme Member
iTrader: (1)
Joined: Mar 2007
Posts: 1,237
Likes: 7
From: Apopka, Florida
Car: 1989 Pontiac Trans Am GTA
Engine: cammed LS1
Transmission: Monster SS 4L65E
Axle/Gears: 9 bolt posi w/ 3.70 gears
Re: I should not be left unsupervised
Ha! I was thinking the same thing.
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iTrader: (4)
Joined: Mar 2009
Posts: 3,079
Likes: 4
From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: I should not be left unsupervised
plates look real good, nice job.
and those LS3 goodies should be fun. can't wait to see what mine can do this spring
and those LS3 goodies should be fun. can't wait to see what mine can do this spring
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Time to order a belt. My measure was a tad off on the CAD drawing, so Ill have to weld an ear on the lower bracket. Serves me right for not double checking what i drew at 2am


Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: I should not be left unsupervised
Just JB Weld it. haha
Joined: Oct 2007
Posts: 2,606
Likes: 6
From: Kemah, Tx
Car: 1991 z28
Engine: Turbo 310
Transmission: T56
Axle/Gears: D44
Re: I should not be left unsupervised
hey pocket whats the minimum clearance an average sepentine belt needs from surrounding components?
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Depends
If its wrapping around a pulley, not much, maybe .050"
If its in a long stretch between two pulleys, quite a bit, .5-1"
When its near something solid mounted like a pulley, it doesnt vibrate much because the block dampens it. The longer the distance, the more it acts like a guitar string, esp under load
If its wrapping around a pulley, not much, maybe .050"
If its in a long stretch between two pulleys, quite a bit, .5-1"
When its near something solid mounted like a pulley, it doesnt vibrate much because the block dampens it. The longer the distance, the more it acts like a guitar string, esp under load
Joined: Oct 2007
Posts: 2,606
Likes: 6
From: Kemah, Tx
Car: 1991 z28
Engine: Turbo 310
Transmission: T56
Axle/Gears: D44
Re: I should not be left unsupervised
hmmm i may need to ad an idler pully then, my blet is only 0.65" from my turbo and its an 18" span of belt
Member
Joined: Feb 2009
Posts: 150
Likes: 0
From: Roxboro NC and PSL FL
Car: 88 Pontiac GTA and 4 Camaros
Engine: 5.7
Re: I should not be left unsupervised
Imagine how it is when my husband and I are off the chain and unsupervised! lol. No wonder we have so many 3rd Gens. Theres no husband/wife to off set the balance
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Who says you cant MIG weld alum?

Fixed the ear I screwed up on. Its not a billet piece anymore, but atleast it works

Fixed the ear I screwed up on. Its not a billet piece anymore, but atleast it works
Supreme Member
iTrader: (2)
Joined: Aug 2001
Posts: 1,081
Likes: 3
From: Peoria, IL USA
Car: 91 GTA
Engine: 377ci
Transmission: T56
Axle/Gears: QP Ford 9" 3.70s
Supreme Member
iTrader: (8)
Joined: Dec 2005
Posts: 2,412
Likes: 14
From: Northern CT
Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
Re: I should not be left unsupervised
Wow, that looks pretty good for a mig weld on aluminum! Do you have a spool gun attachment or was that just with aluminum wire on the normal gun??
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Havent sold the car, havent dont much with it actually. The M122 kit is for sale though
Been pondering what to do with this next kit I picked up...
Been pondering what to do with this next kit I picked up...
Supreme Member

Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: I should not be left unsupervised
Supreme Member

Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: I should not be left unsupervised
The way the supercharger sits does make it look like an LT5 though...
Last edited by ericjon262; Sep 2, 2012 at 02:59 PM.
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Got the engine buttoned back up and dropped it in. Starting to look like a car again


Not sure if I posted it, but this is what happened to the last engine. Melted #7
Block and head were perfect, so a new piston and its back in business



Not sure if I posted it, but this is what happened to the last engine. Melted #7
Block and head were perfect, so a new piston and its back in business

Thread Starter
Joined: Jun 2005
Posts: 8,117
Likes: 361
From: NC
Car: 91 Trans Am
Re: I should not be left unsupervised
Not really sure what came first, the hotspot melting through or the top ring butting blowing the bottom of the piston out, but it sure demolished that piston
Cant believe I drove it in the garage like that
Cant believe I drove it in the garage like that
Joined: Nov 2006
Posts: 536
Likes: 4
From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: I should not be left unsupervised
Nice looking setup!
That piston sure didn't have much more life left in it... Lucky she didn't tear things apart.
That piston sure didn't have much more life left in it... Lucky she didn't tear things apart.






