silent but deadly
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
silent but deadly
well my friends ive been thinking doing some upgrades to my 08 Vette A6 first would be to do the usual which is nasty cam ported heads big stall and maybe a supercharger( money permitting lol) second would be to do just a mild cam and maybe a small nitrous kit and third which is what im leaning towards is to do a very unsuspecting stock sounding car maybe a set of ported heads and rod mod LS3 intake with ported TB but with a small stall say Yank PAS 3400 or Circle D 3200 then maybe E85 and a cam that doesn't lope just to be different plus if I do the "silent but deadly" set up I could use the other money that id be using in my first suggestion to get my 02 WS6 up and running again lol anyway the first two options are what I consider the "usual mods" but the 3rd option is not the norm plus would love to see the new 6th gen Camaro and new 5.0 crowds thinking wtf its not stock looking for nitrous and scratching their heads lol anyway give me your thoughts and input all is appreciated
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
A good silent but deadly combo would be an LS3 with a TVS2300 blower, wide LSA blower cam (for minimal overlap and smooth idle), and all the bolt ons. Easy 650 to 700 rwhp and totally stealth. Something like Tooley's Stage 1 PD blower cam would insure no rowdy camisms. Blower is essentially silent until you get on it. Exhaust will usually drown out any blower noise at WOT.
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well my friends ive been thinking doing some upgrades to my 08 Vette A6 first would be to do the usual which is nasty cam ported heads big stall and maybe a supercharger( money permitting lol) second would be to do just a mild cam and maybe a small nitrous kit and third which is what im leaning towards is to do a very unsuspecting stock sounding car maybe a set of ported heads and rod mod LS3 intake with ported TB but with a small stall say Yank PAS 3400 or Circle D 3200 then maybe E85 and a cam that doesn't lope just to be different plus if I do the "silent but deadly" set up I could use the other money that id be using in my first suggestion to get my 02 WS6 up and running again lol anyway the first two options are what I consider the "usual mods" but the 3rd option is not the norm plus would love to see the new 6th gen Camaro and new 5.0 crowds thinking wtf its not stock looking for nitrous and scratching their heads lol anyway give me your thoughts and input all is appreciated
People usually shy away from upgrades like this as it is admittedly a big project. It isn't however as expensive as you might think though as you can build a complete running LS7 for around $8500 which I'm currently doing as we speak:
- 5.3 bare block $400
- $3150 to have it converted to a Darton sleeved 427
- $300 shipping to Southern California and back
- $2630 for a brand new forged and balanced rotating assembly from CNC Motorsports
- $400 for assembly and any other needed machine shop work
- $1200 for a good set of used heads
- $500 for other miscellaneous parts
Just a thought...
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
A good silent but deadly combo would be an LS3 with a TVS2300 blower, wide LSA blower cam (for minimal overlap and smooth idle), and all the bolt ons. Easy 650 to 700 rwhp and totally stealth. Something like Tooley's Stage 1 PD blower cam would insure no rowdy camisms. Blower is essentially silent until you get on it. Exhaust will usually drown out any blower noise at WOT.
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
My "silent but deadly" combo was in my other race car after I first installed a stock LS7 - 600RPM idle that ran 10.644 the first time I took it to the track.
People usually shy away from upgrades like this as it is admittedly a big project. It isn't however as expensive as you might think though as you can build a complete running LS7 for around $8500 which I'm currently doing as we speak:
Just a thought...
People usually shy away from upgrades like this as it is admittedly a big project. It isn't however as expensive as you might think though as you can build a complete running LS7 for around $8500 which I'm currently doing as we speak:
- 5.3 bare block $400
- $3150 to have it converted to a Darton sleeved 427
- $300 shipping to Southern California and back
- $2630 for a brand new forged and balanced rotating assembly from CNC Motorsports
- $400 for assembly and any other needed machine shop work
- $1200 for a good set of used heads
- $500 for other miscellaneous parts
Just a thought...
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no sir that's more than just a thought lol but as always I appreciate your info actually thinking of doing some thing similar drag wise but before I get involved I like to address the pro and cons of each option but let me ask you this..... why the 5.3 block and not just use the 6.2 or even a 6.0 block ???
Just found his email - he said the 5.3 is the strongest of the factory castings.
Last edited by subfloor@centurytrans; Jan 31, 2020 at 06:26 PM.
Burning Brakes
Joined: Nov 2014
Posts: 966
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From: Whitesburg Kentucky
The 5.3 block is a lot cheaper and Steve (from Race Engine Development - the company that's doing the sleeves) recommended it specifically as I think he said it's actually a better and stronger overall design.
Just found his email - he said the 5.3 is the strongest of the factory castings.
Just found his email - he said the 5.3 is the strongest of the factory castings.
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Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
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Pro
Joined: Mar 2007
Posts: 738
Likes: 226
From: Coast of San Mateo CA
I would bet Steve @ RED does not sleeve 5.3 Iron blocks,
The Gen IV 5.3 Aluminum are the strongest OE NA LS
Blocks gm made and the best to sleeve.
My Silent but Deadly combo would utilize a Cam Motion Schmedim LLSR
(Which are much quieter & Stable than hydraulics) something like
235*/243* 114*+3* .670"/.650"
(remember to subtract roughly 6 degrees duration to adjust for lash
when converting to a hydraulic equivalent).
Combined with a MamoMotorsports (MMS) LS3 Heads,
which flow 380+ CFM @ .650" through a 260 CC Port!
and Ported FAST Intake with both Standard & Mid_length Runners.
550-570+ RWHP with Fantastic Low Speed Manners.
Just my .02
Good Luck
The Gen IV 5.3 Aluminum are the strongest OE NA LS
Blocks gm made and the best to sleeve.
My Silent but Deadly combo would utilize a Cam Motion Schmedim LLSR
(Which are much quieter & Stable than hydraulics) something like
235*/243* 114*+3* .670"/.650"
(remember to subtract roughly 6 degrees duration to adjust for lash
when converting to a hydraulic equivalent).
Combined with a MamoMotorsports (MMS) LS3 Heads,
which flow 380+ CFM @ .650" through a 260 CC Port!
and Ported FAST Intake with both Standard & Mid_length Runners.
550-570+ RWHP with Fantastic Low Speed Manners.
Just my .02
Good Luck
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
I would bet Steve @ RED does not sleeve 5.3 Iron blocks,
The Gen IV 5.3 Aluminum are the strongest OE NA LS
Blocks gm made and the best to sleeve.
My Silent but Deadly combo would utilize a Cam Motion Schmedim LLSR
(Which are much quieter & Stable than hydraulics) something like
235*/243* 114*+3* .670"/.650"
(remember to subtract roughly 6 degrees duration to adjust for lash
when converting to a hydraulic equivalent).
Combined with a MamoMotorsports (MMS) LS3 Heads,
which flow 380+ CFM @ .650" through a 260 CC Port!
and Ported FAST Intake with both Standard & Mid_length Runners.
550-570+ RWHP with Fantastic Low Speed Manners.
Just my .02
Good Luck
The Gen IV 5.3 Aluminum are the strongest OE NA LS
Blocks gm made and the best to sleeve.
My Silent but Deadly combo would utilize a Cam Motion Schmedim LLSR
(Which are much quieter & Stable than hydraulics) something like
235*/243* 114*+3* .670"/.650"
(remember to subtract roughly 6 degrees duration to adjust for lash
when converting to a hydraulic equivalent).
Combined with a MamoMotorsports (MMS) LS3 Heads,
which flow 380+ CFM @ .650" through a 260 CC Port!
and Ported FAST Intake with both Standard & Mid_length Runners.
550-570+ RWHP with Fantastic Low Speed Manners.
Just my .02
Good Luck
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
Racer
Joined: Aug 2017
Posts: 296
Likes: 76
From: Virginia
lol really I had NO set expectations just the fact that todays younger crowd is so amped up about mods and HP I really wanted a car that sounded stock but ran unbelievably too fast making them do the usual crying about "you got nitrous" lol anyway I already know with Bolt ons and a stall the potential are high 10s in the 1/4 so that's good enough for me
)
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
Thread Starter
Burning Brakes
Joined: Jan 2019
Posts: 1,209
Likes: 215
From: Dallas, Tx
Racer
Joined: Aug 2017
Posts: 296
Likes: 76
From: Virginia
For the effort you would be going through I would put a titan 2 cam or equivalent. Put a good set of valve springs like psi 1516s (everyone hates on a beehive but you can loose a pound out of the valvetrain) Dont touch the heads they are capable of supporting way more power than you will make. E85 will only help with about 30% ethanol, anything more and its just wasting energy (you wont see a gain and tax the stock injectors). We built a ram air for my car and it really works well. Car sees 101kpa on wide open pulls. Gear would be my only other suggestion but before I did it I would see how the set up performs. Its a pricey mod.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
So, here ya' go. How silent do you want to be and how deadly do you want to be? Lots of good stuff above. If you're not going the p/d blower route (ultimate silent but deadly rig in my book), your cam choice and cubic inches are going to dictate how silent you are, and how deadly you are. You can get by with less camshaft (more silent) with port work on the heads and intake manifold.
3.42 diff gears are an excellent A6 upgrade if you're more into racing from a dig...providing you can hook 'em. Spinnin' ain't winnin'. Lots of ways to skin that cat. Vettes are an AWESOME platform to play with. Light vehicle weight with a very capable engine, tranny, and rear end. Just begging to go faster.
3.42 diff gears are an excellent A6 upgrade if you're more into racing from a dig...providing you can hook 'em. Spinnin' ain't winnin'. Lots of ways to skin that cat. Vettes are an AWESOME platform to play with. Light vehicle weight with a very capable engine, tranny, and rear end. Just begging to go faster.