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Old 02-26-2011, 01:22 PM   #1
johnwins
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Stock Bottom End & Boost - Reliability List (Blowers Rape Your Cranks!)

Well I saw this over on Tech and thought it would be a great way to collect data on how long the LS1/2 SBE will hold when boosted. Only post if you have ran boost on a SBE and if you broke something post up what broke.

Format for Post
Type of Forced Induction (Turbo/Supercharger)
- Boost Amount / RWHP/ RWTQ
- LS1/2 Stock Bottom End
- Miles on the car when FI installed
- Miles ran since FI has been on the car (ie: CURRENT MILAGE)
- IF you broke the motor, list what was broken.


--TYPE----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- CURRENT BROKE?

-SC-M122------10PSI-----597+---533+---LS2------60K-------70K------N-----(added 102TB, Powerchamber & EWP, dropped to a 2.8 upper, needs to go to a dyno)
-SC-D1SC-----5.5PSI-----590-----540----LS2------10K-------20K------N-----
-SC-D1SC-----10.5PSI----650-----600----LS2------20K-------35K------N-----
-SC-D1SC-----7.5PSI-----720-----690----LS2------35K-------50K------Y------( Rod Bearings )
-SC-M122------11PSI-----600-----n/a----LS1------59K------122K------N-----Blower has been removed
-Twin Turbo-----5PSI ----523-----526----LS2 -----35K-------69K------Y----- (broke#7 piston/wack ass tune)
-SC-M112------9PSI------429-----456----LS1-----110K------157K------N-----
-SC-M112-----9.3PSI-----530-----530----LS2-------7K-------27K------N-----
-RM Turbo-----14PSI------???-----???----LS1------75K-------75K------Y----- (broke #5 Ringland) oops
-SC-M112------8PSI------484---- 455----LS1------59K-------76K------N-----
-SC-M112HH----9PSI------510----536----LS2-------5K-------20K------N-----
-SC-F1A-------14PSI------???----???-----LS2-----9.0K------9.8K------Y-----(Lost Oil Pressure)
-SC-TVS2300 --6PSI ------??? --- ???----LS1-------0K-------10K------N------
-SC-TVS2300 -10.5PSI ----??? ----???----LS1------10K-------18K------N-----
-SC-TVS2300-14PSI ------700---743----LS1 ------18K-------30K------N-----Steel Chicken-MightyLS1 refuses to die
-TC-GT67-----6PSI-------479----471----LS2--------------------------N-----
-APS-TT------12PSI-------XXX----XXX---LS2------20K--------22K-----Y----(wrong plugs,broke piston&cyclinder wall)
-STS-67mm----8PSI--------???----???----LS2------18K--------30K-----N-----
-SC-M112HH--10PSI-------637----655----LS2-------4K--------11K-----Y-----(cracked a cylinder sleeve)
-SC-P1SC------6PSI-------XXX----XXX---LS1------45K--------55K-----N-----
-SC-D1SC----10.5PSI------672----550----LS2-------9K---------9K-----N-----
-SC-P1SC-----8.8PSI------489----445----LS1-------2K--------22K-----N-----
-SC-P1SC-----9.5PSI------640----547----LS1------22K--------42K-----N-----
-SC-M112HH---13PSI------559----536----LS1-------3K--------17K-----N-----
-TT-APS-----10.5PSI------610----590----LS2-------9K--------17K-----N-----
-SC-TVS1900---8PSI------562----545----LS2------26K--------28K-----N-----
-SC-TVS1900-11.5PSI-----567----540----LS2------45K--------57K-----N-----
-SC-HTV1900-7.5PSI------629----608----LS2------35K--------13K-----N-----
-TT-APSTT----15PSI------660----640----LS2------22K--------40K-----Y-----(Never figured out why)
-SC-P1SC-----6.5PSI-----592----485-----LS2------20K--------26K-----N-----
-SC-TVS1900--11PSI------648----627-----LS1------69K-------90K-----N-----(587/582 before meth)
-SC-TVS1900---7PSI-----538-----513----LS2------20K--------30K-----N-----
-SC-M112HH---10PSI-----474-----470----LS2------15K--------30K-----N-----
-SC-M112HH---12PSI-----535-----542----LS2------30K--------50K-----N-----
-RM-Turbo------6PSI-----470-----471----LS2------25K--------61K-----N-----
-SC-MP122----12PSI-----650-----600----LS2------10K--------10K-----Y-----( #7 Ringland )
-SC-P1SC------6PSI------565----XXX----LS2------35K--------64K-----N-----
-APS-TT------9.5PSI-----636----630-----LS2-----10K--------43K------Y--- NO INFO ON WHY
-TVS-1900----7.5PSI-----555----558-----LS2------40K-------48K------Y-----Destroyed cam,2 lifters,bent pushrods??
-SC-MP112-----6PSI------417----417-----LS1-----23K--------45K------N-----
-SC-MP112-----8PSI------470----504-----LS2-----15K--------18K------N-----
-SC-M122-----13PSI------627----640-----LS2-----25K--------32K------N-----
-SC-D1SC-----10PSI------580----490-----LS1----9.9K--------13K------N----
-SC-P1SC------5PSI------527----446-----LS2-----30K--------37K------N----
-SC-P1SC------9PSI------573----457-----LS2-----37K--------38K------N----
-SC-TVS2300----13.5PSI-----520----530-----LS1-----60K--------60.3K----N----(very rich tune)
-SC-TVS2300-----10PSI------491----499-----LS1-----60.3K------60.6K----N----
-SC-MP112-------10PSI------505----495-----LS1------5K--------45K------N----
-APS-TT------10PSI------557----571-----LS1-----45K--------75K------N----
-SC-D1SC--------10PSI------491----460-----LS1------20K-------25K------N----
-APS TT------12PSI------680----640-----LS2------20K--------8K------Y---- (collapsed rod due to over boost)
-SC-TVS1900---6.5PSI------539----521-----LS2------36K-------38K------N-----
-67M-Rearmount-9PSI----515----470-----LS2---Long ago----3 summers-N-----
-SC-MP112------6.5PSI------475+---426+----LS1------38K-------56K-----N-----(dyno was with a slipping clutch)
-SC-TVS1900----10PSI------611----617------LS2------15K-------43K-----N-----( OLD NAME BUSYDUCK )
-Twin-Turbos----12PSI------670---670------LS2-------60K-------60.3K---N-----
-SC-F1A----------6PSI------???----???------LS2-------60K-------62K-----N-----
-SC-D1SC-------7.5PSI------553---479------LS2-------43K-------44K-----N-----
-SC-TVS1900----5.3PSI-----528----508------LS2--------?---------?------N------ (Nessie's Ragin Boner cam )
-SC-M112--------10PSI------530-- 617------LS2------55K-------67K------N-----
-HX55FrontMount-6 PSI---???------???------LS2-------56K-------60K------N-----
-SC-MP112--------?------517-----529------LS1-------97K-------103K-----N-----
-SC-TVS2300----10PSI------505----460-----LS1-------63K--------67K-----Y-----(Failed Meth Kit)
-APS-TT-------7PSI--------556-----550-----LS2-------3K---------26K----N------
-SC-MP122------11PSI------601----584-----LS2------14K---------16K----N-----
-APS-TT-------8PSI-------555-----536-----LS2------64K---------70K----N-----
-SC-TVS2300---13.5psi-----638----605----LS1-------48K---------55K----Y-----(Failed rod)
-STS67MM-----10PSI-------XXX-----XXX----LS1-----21K---------27K----Y-----(Pistons 5&7---FAILED METH PUMP)
-SC-M112-------6PSI-----Never on a dyno---LS2------50K---------53K----Y----(Plugs to hot, piston 8 gone)
-SC-TVS1900---10PSI--------???---???-------LS1------2k--------20K-----N-----
-SC-TVS1900--6.5PSI------539----521------LS2------36K---------38K-----N-----
-SC-TVS1900--7PSI--------553----511-----LS2-------36K--------40K------N-----
-SC-D1SC-----11PSI-------626-----550-----LS2------29K--------49K-----Y-----(crank pin sheared @ 38k)
-SC-M112-----10PSI--------508-----555 ----LS2------22K--------31K-----N-----
-T6 Front------12PSI------650-----560-----LS2-------59K--------65K------N------This was through a big stall 4L80
-SC-TVS2300---10PSI------620-----601------LS2------28K-------76K------Y------(#1 ringland)
-APS TT-------8PSI--------526-----542----LS2------5K---------13K-------N------
-PTE 7475-----8PSI--------503-----551----LS1------86K--------90K-------N-----
-SC-P1SC-----10PSI-------601-----506----LS1-------60k--------67k------N--------
-HTV2300-----11PSI--------630--will update--LS1----30K---------0--------Y-------(broke on dyno)No Smurf Additude!
-UPP TT-----------8PSI-----544------523----LS2-----11.8K-----12.8K-----Y------(#7 Ringland)
-TVS1900----------XXX-----520-----504----LS2-----33.5K------36K-----N-------
-HX55-Front/Mount-8PSI----491-----580-----LS2----56K--------110K-----N-------
-D1SC------------9PSI------526-----465-----LS2----34K--------38K------N-------
-MP112----------11PSI-----538------571-----LS1----96K--------112K----N--------
-TVS1900--------6PSI------482------477----LS2-----50K--------56K-----N--------
-TVS2300--------7PSI------520------460----LS2-----????--------???-----N--------
-TVS2300--------12PSI----623------601-----LS2-----56K-------64K------N-------
-UPP TT-----------8PSI-----???-------???----LS2-----70K-------76K------N-------
-TVS1900-------5.5PSI-----???-------???----LS2----130K-----139K------N-------
-MP112---------10.75PSI---537-------573----LS1----95K-------117K-----Y-------(#7 Ringland)
-Vortech T-trim---12PSI----754 ------642----LS3-----23K-------32K-----N------LS3 C6
-7675 Turbo-- ---16psi-----789-------753----4.8-----0K--------3K-------N------through a 3800 stall
-P1SC-------------5.5PSI----485------449-----LS1----75K-------95K-----N------
-APS TT-----------10PSI----557------571-----LS1----45K-------97K------N------
-TVS2300---------11PSI----598------XXX-----LS2----45K-------51K------N-----
-UPP TT-----------6PSI-----450-------469----LS1----88K--------88K-----N------From Estonia FTW
-TVS1900---------12PSI----564-------500----LS2-----20K-------23K-----Y------Failed Meth Nozzle..
-SC-M112---------8PSI-----484-------455-----LS1-----59K-------76K-----N-----
-APS TT-----------6PSI-----606-------578-----LS3----1.5K-------4.5K-----N----









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UPDATED TO POST 323
Thanks for all that have participated!!
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Last edited by johnwins; 12-06-2014 at 09:18 AM. Reason: Added Data ........... Updated information
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Old 02-26-2011, 02:15 PM   #2
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Procharger D1sc
5.5psi 590/540
Ls2 stock bottom + azps cam
10,000
20,000
N/A

Procharger D1sc
10.5psi 650/600
Ls2 stock + azps cam
20,000
35,000
N/A

Procharger D1sc
7.5psi 720+/690+
Ls2 stock + azps cam + p/p/v 243 heads milled
35,000
50,000
Rod bearings squashed
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Old 02-26-2011, 02:48 PM   #3
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http://www.ls1tech.com/forums/forced...lity-list.html
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Old 02-26-2011, 02:49 PM   #4
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That's a good tune if the piston ring lands outlasted the rod bearings.
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Old 02-26-2011, 03:01 PM   #5
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Quote:
Originally Posted by johnwins...View Post
Well I saw this over on Tech

Quote:
Originally Posted by Jontall...View Post
http://www.ls1tech.com/forums/forced...lity-list.html

Just thought it would be nice to have our own list, that is all
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Old 02-26-2011, 05:09 PM   #6
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I think it's a good idea to have our own list here as not everyone frequents both forums and this would a more specific GTO list...

TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
SC-M122---10psi-----507------n/a------LS1-----59k--------90k------N

My rwhp figure is low as Aussie dyno's read about 15% lower which would equate to more like 580rwhp over there. The rwtq figures over here too don't correlate to what you see so it's probably not worth listing. Is it worth listing 1/4 mile times in there too? My car went 10.79@132mph which shows it performs better than the rwhp would suggest.
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Old 02-26-2011, 05:16 PM   #7
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Every OE motor is a little different, every tune is different, sometimes fuel is different/not good... It's a crap-shoot how long it will last.
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Old 02-26-2011, 05:34 PM   #8
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contribute or stfu. you're useless in this thread so far.
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Old 02-26-2011, 05:37 PM   #9
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Quote:
Originally Posted by mistermike...View Post
That's a good tune if the piston ring lands outlasted the rod bearings.

done by yours truly

started as a nicD tune but the dynos wideband was having issues and he left it safe while in AZ. once i got home, and used my dual FAST widebands it was obvious that the sob was PIG rich. hours of tuning day in and day out, little here little there, spot tuning followed and the car was dead nuts. i must have had 15 different tune scenarios for the roll-ons depending on the wager & other car involved.
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Old 02-26-2011, 05:40 PM   #10
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TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
Twin Turbo--5lbs -----523whp---526wtq-Ls2 ----35k ------69k ------yes ( broke #7 piston due to wack ass tune )
10lbs ----650whp---680wtq---forged
14lbs ----730whp---750wtq---forged
12lbs ---750 whp---760wtq ---cast manifold/custom midpipes

ebc, 2.5 bar map, more boost and c-16 on the way

20lbs ----823whp 877wtq
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Last edited by SOFAKINGGR8; 05-19-2011 at 06:04 AM.
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Old 02-26-2011, 05:40 PM   #11
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Quote:
Originally Posted by Jontall...View Post
http://www.ls1tech.com/forums/forced...lity-list.html

and for the record, smartass, he SPECIFICALLY noted that Tech had this list for their site already in his OPENING sentence. that is all
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Old 02-26-2011, 05:41 PM   #12
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Quote:
Originally Posted by Brett SS...View Post
I think it's a good idea to have our own list here as not everyone frequents both forums and this would a more specific GTO list...

TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
SC-M122---10psi-----507------n/a------LS1-----59k--------90k------N

My rwhp figure is low as Aussie dyno's read about 15% lower which would equate to more like 580rwhp over there. The rwtq figures over here too don't correlate to what you see so it's probably not worth listing. Is it worth listing 1/4 mile times in there too? My car went 10.79@132mph which shows it performs better than the rwhp would suggest.

great time and mph!
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Old 02-26-2011, 05:51 PM   #13
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Magnuson MP112
6.5 psi 380/425
LS1 Stock Bottom End
110,000
113,000
N/A
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Old 02-26-2011, 06:24 PM   #14
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Maggie Mp112H
9.3PSI MAX 530/530
LS2 Stock Bottom end and Stock Never removed heads!
boosted since 7K miles
Now has 27K miles
Never Hurt the motor only the Axles, Clutch, and CV shafts LOL
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Old 02-26-2011, 07:11 PM   #15
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Quote:
Originally Posted by jcain...View Post
great time and mph!

Thanks, that was pedalling it off the line too (1.66 60' time) with 235/60/15 drag radials in average air. With a few tweaks and better traction it would be in the mid 10's easily.
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Old 02-26-2011, 07:41 PM   #16
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TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
RM Turbo--- 14lb------???-----????-----LS1----75k--------75k-------YEP (broke #5 Ringland) oops
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Old 02-26-2011, 07:53 PM   #17
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Quote:
Originally Posted by JAX04...View Post
TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
RM Turbo--- 14lb------???-----????-----LS1----75k--------75k-------YEP (broke #5 Ringland) oops

Did it break during tuning or something as you didn't even get 1k miles out of it? Do you know why it broke?
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Old 02-26-2011, 07:57 PM   #18
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Quote:
Originally Posted by Brett SS...View Post
Did it break during tuning or something as you didn't even get 1k miles out of it? Do you know why it broke?

I think he had boost leaks and when he fixed them it overboosted.
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Old 02-26-2011, 10:00 PM   #19
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Quote:
Originally Posted by Brett SS...View Post
Did it break during tuning or something as you didn't even get 1k miles out of it? Do you know why it broke?

My best guess, 14lbs was too much for that poor cast piston

Quote:
Originally Posted by jon6.0...View Post
I think he had boost leaks and when he fixed them it overboosted.

It did boost more then we had intended, BUT we had already tuned that area before. Just a sustained run at 14lbs for 20-25 seconds. I just dumped my computer today to install Windows 7 or i would post the logs of the runs.

The log showed ZERO knock and fueling was spot on at around 10.8 to 11.3 with E85.

EDIT: after it all happened, we looked back at other logs in the past and compared them, we had indeed hit that level of boost more then once during tuning.

Last edited by JAX04; 02-26-2011 at 10:03 PM.
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Old 02-26-2011, 10:22 PM   #20
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Quote:
Originally Posted by Jontall...View Post
Every OE motor is a little different, every tune is different, sometimes fuel is different/not good... It's a crap-shoot how long it will last.

I think we all understand that, just trying to collect data for the hell of it.

Quote:
Originally Posted by SOFAKINGGR8...View Post
TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
Twin Turbo--5lbs -----523whp---526wtq-Ls2 ----35k ------69k ------yes ( broke #7 piston due to wack ass tune )
10lbs ----650whp---680wtq---forged
14lbs ----730whp---750wtq---forged
12lbs ---750 whp---760wtq ---cast manifold/custom midpipes

ebc, 2.5 bar map, more boost and c-16 on the way

Damn I am jealous

Quote:
Originally Posted by jcain...View Post
great time and mph!

Yeah Bretts car is amazingly qwick!!

Quote:
Originally Posted by 06X6spdGTO...View Post
Maggie Mp112H
9.3PSI MAX 530/530
LS2 Stock Bottom end and Stock Never removed heads!
boosted since 7K miles
Now has 27K miles
Never Hurt the motor only the Axles, Clutch, and CV shafts LOL

Hahaha Very Nice

Quote:
Originally Posted by Brett SS...View Post
Thanks, that was pedalling it off the line too (1.66 60' time) with 235/60/15 drag radials in average air. With a few tweaks and better traction it would be in the mid 10's easily.

Oh how I would kill for a 1.66 60ft..

Anyways thanks for everyone that has added their info to the thread
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Old 02-27-2011, 04:25 AM   #21
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M112
455/449
6PSI
59k/70k
25+ passes at the track
Still going strong
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Pedders/Koni/BMR/DBA
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Tick/Gforce1320
SAP front/ DMS bumper and spoiler
Slowhawk tuned 484/455
11.47 @122 4/7/13 NED
SOLD 6/8/13

04 a4 BBM
Monaro front end
dynatech LT's
Corsa catback
spoiler delete
Bunch of suspension goodies
Purchased 4-27-14

09 WH G8 GT
SLP Axle back
5th gen Camaro 20's
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Old 02-27-2011, 04:52 AM   #22
sandu002
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Had mine now for 15k and no problems. See sig.
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1 of 484, M6
Kooks 1 3/4" LT's, Hotchkis sway bars, Pedders Street II
BMR dragbags, axles, stubs, 3.5" alum ds
Kaaz diff, Harrop cover, Kircher spoiler
112HH Maggie, w 60's
ECS Tensioner
2.6" Pulley - Pulley Boys
Formato ported TB, LPE CAI
Monster stage 4 clutch
Magnaflow exhaust w h/f cats & midpipe
Hurst shifter
245/40/18 (F&R)
Banshee gauge pod
1/4 = 11.82 @121 mph
518 rwhp 533 rwtq @ 9 psi
EFI tune - Behe Performance
DBA T3's, Hawk HP+ (st) DTC60 (trk)
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Old 02-27-2011, 05:46 AM   #23
9secgoat
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ls2
was 11 then it went up to 14psi
9000 miles to 9800 miles with no issue in tell I got stupid one night and rev the engine for a 3min run and apparently suck the pan dry, other then that no ring land/bearings problems in tell that point
never had it back to the dyno with the 14psi but went from 127mph (11psi) 134 (14psi)
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stock 06 gto procharged F1, 11psi 501rwhp@6000 (mustang dyno)18degs on e85/meth
1.71 60ft 10.71 @131.7 at 12psi 23degs
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Old 02-27-2011, 06:00 AM   #24
Steel Chicken
Cthulhu's IT D1r3ktФя
 
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TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
TVS2300 -- 14psi ---- 700+ --- 700+ --- LS1 --- Less boost for 20Kmiles No brokens

10K miles at 6psi
8k miles at 10/11 psi
3k miles at 14psi

Mighty LS1 refuses to die.
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2004 GTO, Stock LS1 internals, donkey dick cam, mega-ultron space heater @ 14PSI, ETP heads, exhaust thingies and other stuffs. 742 RAWRZORS.


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Old 02-27-2011, 06:28 AM   #25
Revis24
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TYPE ----- BOOST -- RWHP -- RWTQ-- LS1/2-- INSTALL -- SINCE -- BROKE

GT67 --- 6# ---- 471 (mustang dyno)479 LS2 - Self installed - 3yrs ago - MANY drive train parts trying to keep up with the higher power....

Last edited by Revis24; 02-27-2011 at 06:38 AM.
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Old 02-27-2011, 07:35 AM   #26
johnwins
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Quote:
Originally Posted by sandu002...View Post
Had mine now for 15k and no problems. See sig.

Quote:
Originally Posted by Steel Chicken...View Post
TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?
TVS2300 -- 14psi ---- 700+ --- 700+ --- LS1 --- Less boost for 20Kmiles No brokens

10K miles at 6psi
8k miles at 10/11 psi
3k miles at 14psi

Mighty LS1 refuses to die.

Quote:
Originally Posted by Revis24...View Post
TYPE ----- BOOST -- RWHP -- RWTQ-- LS1/2-- INSTALL -- SINCE -- BROKE

GT67 --- 6# ---- 471 (mustang dyno)479 LS2 - Self installed - 3yrs ago - MANY drive train parts trying to keep up with the higher power....

1) Steel Chicken how and the hell is your motor still alive
2) What milage where yall at when you added Boost and what is your current milage. Thanks guys
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Old 02-27-2011, 07:40 AM   #27
BOSSGTO
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TYPE=APSTT ----- BOOST=12psi -- RWHP=N/A -- RWTQ=N/A-- LS1/2=LS2-- INSTALL=20,000 -- SINCE,2,000 -- BROKE=piston and cylinder wall

wrong plug type=detonation=boom=new 403ci !!!
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Forged alum 403ci | 8:6.1 | APS TT | 672RWHP@6800 | 685RWTQ@4400 | 11.6lbs on 91 octane | GM HighTech Performance magazine May, 2009


www.kenzmuffler.com

Last edited by BOSSGTO; 02-27-2011 at 07:52 AM.
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Old 02-27-2011, 08:03 AM   #28
Steel Chicken
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Quote:
Originally Posted by johnwins...View Post
1) Steel Chicken how and the hell is your motor still alive
2) What milage where yall at when you added Boost and what is your current milage. Thanks guys

No idea. I know E85 has a lot to do with it. I first added boost right around 9K miles or so. 112. Added a cam later. Then swapped to a 122 with heads. Then put a TVS2300 on it. It never ends!
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Old 02-27-2011, 08:19 AM   #29
BigPapi
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Quote:
Originally Posted by johnwins...View Post
1) Steel Chicken how and the hell is your motor still alive
2) What milage where yall at when you added Boost and what is your current milage. Thanks guys



his engine was touched by the hands of the GTO gods......and sprinkled with holy water..
__________________
Quote:
Originally Posted by MuhThugga...

No problem. People always want to get the biggest camshaft they can, it seems; like, "I just got the Nessie's Raging Hard-On Cam. It is a 260/280 .800/.800! Think I'll put 600 to the wheels if I spin her high enough with an underdrive pulley and a 160 T-Stat?"

CURRENT: SUPERCHAGRED C6

GONE:
370
TVS 1900
AFR 225 HEADS
3.2 FRONT PULLEY HENDRICK ENGINEERING AND HEINTZ RACING...FTW!!!!!
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Old 02-27-2011, 08:48 AM   #30
chance575
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TYPE ----- BOOST -- RWHP -- RWTQ--LS1/2-- INSTALL -- SINCE -- BROKE?

sts 67mm 8 psi ??? ??? LS2 18k 12k nope
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