Threads Tagged with 81

81, 8100, barrel, consumption, development, dyno, engine, fuel, instrument, intake, l18, motor, raylar, results, specific, tune, vortec

Difference in 8.1 engine's 01-07

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1 2 3)

1SloLQ9 on Nov 10, 2013

Aug 24, 2021 05:32 PM
by JoshuaFoster

24

113,827

04, 81, 81l, avalanche, big, block, chevy, fury, headers, installing, long, stainless, truck, tubes, works

will regular BBC headers work on 8.1L?

lifted99GMC on Mar 24, 2005

Mar 25, 2021 07:42 PM
by terravast4

6

17,630

2003, 2500, 81, 81l, engine, forums, gmc, hd, liter, noise, push, revved, rods, rokers, ticking

02 8.1l knocking/ticking HELP

2500HD8.1 on Dec 16, 2012

Mar 10, 2020 03:30 PM
by Brandon Walbeck

8

21,559

206, 23, 31253754, 496, 81, adding, camshaft, dart, ho, intake, ported, raylar, spec, stock, whipple

My ongoing 8.1 adventures...

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xx_ED_xx on Apr 30, 2013

Aug 4, 2019 02:00 PM
by LCDR

132

79,727

2001, 2004, 81, 81l, chevy, dual, engines, exhaust, fuel, gmc, improement, improvement, mileage, mpg, programmers, saving, upgrades, vortec

8.1L Fuel Improvement/power upgrades

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1 2)

moes04silverado on Dec 25, 2010

Jun 3, 2018 07:32 PM
by Michael Coleman

14

110,408

02, 03, 2002, 2500, 2500hd, 81, 81l, antifreeze, changing, chevy, leak, leaking, leaks, oil, smell, tranny

HELP...8.1 Loosing Coolant!!!

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1 2 3)

Ender06 on Mar 14, 2009

Mar 18, 2018 12:10 PM
by TonyT

29

54,636

12, 81, bolt, chevy, end, posi, rear, silverado, slicks, stock, truck

10 Bolt 3.90 Eaton Posi Rear Axle, Caltracs, Slicks & Skinnies

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1 2 3)

Johnmaster on May 3, 2014

Sep 20, 2016 11:34 AM
by Mrice

20

8,987

02, 1500, 2013, 81, bad, c1500, chevy, dodge, engines, fuel, hemi, marine, octane, performance, rating, running, startup, upgrades, vortec

8.1 vortec 110 octane

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1 2)

8.1boss on Apr 7, 2013

Jan 28, 2016 06:32 PM
by jonny5cam

11

4,670

2002, 81, 81l, avalanche, bootheredneck, chevy, code, gm, line, p1220, p1221, p1221a, signal, tps

TPS and Tach Signals

BooTheRedneck on Mar 20, 2006

Oct 27, 2015 08:36 PM
by Velocity1

8

2,688

2006, 496, 59920, 81, 81l, flow, gm, headers, install, magnaflow, muffler, obtain, pics, stainlessworks, vararam

8.1L StainlessWorks Headers are ordered!!!

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Whippled 496 on Jan 26, 2009

Jul 2, 2015 10:07 PM
by Whipped383

106

32,905

2011, 81, adder, ford, gm, injector, injectors, marine, multec, offset, pulse, pulsing, short, truck, width, wiki

8.1 marine / multec 2 voltage offset, short pulse adder, and min pulse width

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1 2)

Jim_PA on Mar 18, 2011

Jun 4, 2015 10:00 AM
by 03sierraslt

19

8,586

(((((( 8.1 injectors )))))!!!

bohr898 on Oct 17, 2012

Apr 23, 2015 08:48 AM
by xx_ED_xx

3

1,443

496, 81, 81l, big, block, cam, efilive, headers, heads, jeep, raylar, tuning, upgrades, vortec, wiki, xr270hr

Vortec 8.1 Performace Help

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1 2)

OMalley on Mar 24, 2006

Mar 23, 2015 08:03 PM
by Modifyit15

14

23,335

Chevy 8.1 #31 injector fs

nickpc82 on Dec 15, 2012

Mar 23, 2015 06:12 AM
by Gordo_Jr

9

1,413

2500, 2500hd, 81, allison, chevy, crank, crankshaft, driving, ecm, gmc, position, relearn, replacing, sensor, shuts, sierra

8.1 Shuts off while driving

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1 2)

Red95Formula on Mar 11, 2008

Mar 14, 2015 03:04 PM
by thagodfusion

11

19,626

81, 81l, 93, headers, long, octane, power, stainless, tube, tune, vortec, works

8.1 Tune vs Tune+Headers

Vortec8100 on Feb 12, 2014

Jan 31, 2015 01:30 AM
by TIMINATOR

8

39,388

81, 81l, finally, flow, heads, intake, manifold, modification, numbers, ported, porting, poted, stock, torque

Finally! Modified Stock 8.1L Intake Manifiold Numbers!

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Raylar Engineering on May 28, 2014

Dec 23, 2014 08:25 PM
by xx_ED_xx

19

30,679

10.4l

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vulcanraven on Sep 13, 2013

Dec 23, 2014 03:26 PM
by Kerr

38

24,788

81, 93, bypass, disconnect, electronics, mail, nelson, performance, plug, silverado, spark, tune, tunes, valve, whipple

nelson tune for whipple

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HAZE on May 20, 2004

Dec 9, 2014 05:58 PM
by craigsix

98

23,040

04, 12575182, 12575183, 2001, 2004, 2500hd, 81, 81cam, cam, chevy, crankshaft, gmc, pc340, sale, sensor, smp

8.1 cam sensor discontinued???

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1 2)

SchwarzBiest on Mar 6, 2013

Nov 18, 2014 04:09 PM
by Raylar Engineering

15

53,492

1500, 81, bbc, big, chevy, ideal, mounting, sale, silverado, turbo, turbo81tv8101, turbocharger, turboed, tv8101, wiki

BIG Turbo TV8101 on BBC in 2004 1500 Silverado

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xx_ED_xx on Jul 11, 2010

Aug 20, 2014 07:45 AM
by xx_ED_xx

96

44,033

FORCED INDUCTION

8.1L with a Comp Cam, who has it???

Ender06 on May 9, 2014

Jul 15, 2014 03:19 PM
by Kerr

9

10,841

Trucks and SUV Classifieds

2000, 243, 3600, 57, 81, 9902, crashed, heads, impression, job, k3500, lq4, performance, powered, silverado, swap, vbulletin, yank

figured id start a build thread since stuffs getting done

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2doorfury on Apr 25, 2012

Jun 3, 2014 06:13 PM
by 2doorfury

106

26,530

PROJECTS GALLERY

03, 2003, 2500, 2500hd, 81, 81l, chevy, ecsb, gmc, performance, sale, supercharged, supercharger, truck, whipple

2003 2500HD ECSB 8.1L Whipple Supercharged

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Whippled 496 on Feb 4, 2014

Mar 25, 2014 05:33 PM
by Whippled 496

14

22,645

8.1 Custom Intake Manifold

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1 2)

Ender06 on Feb 23, 2014

Mar 3, 2014 08:33 PM
by FatFut

11

16,489

01suburban, 400, 81, 81l, boost, comparison, economy, engine, fuel, gas, ib, k2500, mileage, suburban, trans

01 Suburban K2500, 8.1L... MPG comparisons

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1 2)

Ronich69 on Jan 5, 2014

Feb 22, 2014 08:26 PM
by RezinTexas

15

7,135

2004, 203, 2500, 60, 81, 81liter, aftermarket, bp, cam, engineering, hd, headers, inch, intake, lift, liter, lopey, manifold, raylar, stainless, works

My 8.1

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02_2500avalanche on Jan 15, 2014

Jan 30, 2014 11:44 AM
by 02_2500avalanche

19

25,679

203, 81, bp, bp202, bp203, cam, cams, comp, dyno, raylar, records, spec, video, vortec, xr264hr

Who has used a xr264hr Cam in a 8.1? Please chime in

1SloLQ9 on Nov 25, 2013

Jan 10, 2014 10:06 AM
by Kerr

5

12,108

8.1 Tuning with EFI Live

offroad00 on Nov 13, 2013

Dec 16, 2013 09:10 AM
by offroad00

6

2,128

42lb 8.1 Marine Injectors

sbw9056 on Dec 3, 2013

Dec 12, 2013 11:35 AM
by sbw9056

4

955

2500hd, 81, big, block, cfm, clutch, custom, electric, fan, fans, gmc, rating, stuck, tow, truck

Electric fan on 8.1 avalanche

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1SloLQ9 on Nov 18, 2013

Dec 10, 2013 07:57 PM
by 01WS6/tamu

18

15,388

2001, 2500hd, 81, 81l, big, block, boat, chevy, gain, gmc, hd, headers, hp, sierra, silverado, stainless, works

Big Block 8.1 Headers w/2" Primaries

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1 2 3)

Stainless Works on Jun 25, 2012

Oct 24, 2013 06:43 AM
by yooperLS6

23

25,380

81, blackbear, front, lq4, mount, pvc, turbo

HELP! Turbo truck not running right

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BGERALD on Aug 28, 2013

Sep 3, 2013 03:50 PM
by whippled 8.1l build

42

6,121

FORCED INDUCTION

2001, 60, 81, conversion, converting, dbw, disconnect, silverado

Ever seen a 2001 Silverado w/DBW??

Deuce on Aug 5, 2013

Aug 6, 2013 04:11 AM
by oakley6575

5

6,497

FUEL SYSTEMS

02, 07, 81, 81l, adjust, bigger, cam, compensate, fuel, general, increase, injectors, made, motors, pressure, regulator

8.1 fuel pressure and injector question

OMalley on Jul 23, 2013

Aug 5, 2013 09:49 PM
by OMalley

8

16,798

INTERNAL ENGINE MODIFICATIONS

Looking to buy 8.1 injectors??

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1 2)

Brandon Bogert on Aug 3, 2013

Aug 5, 2013 12:42 PM
by kelsey_canard

16

2,437

FUEL SYSTEMS

50psi, 81, 81l, drops, engine, liter, litre, low, mercruiser, modifications, oil, operating, pressure, rebuit, wot

8.1l rebuilt engine low oil pressure

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1 2)

whippled 8.1l build on May 21, 2013

Jul 7, 2013 02:42 PM
by 02_2500avalanche

13

17,079

81, chevy, engine, loose, oil, pan, pickup, rattle, rattling, rod, silverado

Oil Pan Rattle

Tx04RST on Jun 22, 2013

Jun 30, 2013 07:58 PM
by Tx04RST

6

11,959

2000, 2002, 2004, 2500, 81, chevy, electric, electrical, fail, gmc, meziere, pump, sierra, water, wp319s

Electric water pumps

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1 2 3)

moes04silverado on Jan 29, 2010

Jun 8, 2013 10:03 PM
by ShredSled

24

6,366

2000, 2001, 81, 81l, cam, engine, gm, high, injector, injectors, lbs, mileage, put, rich, silverado, vortec

Explain injectors

Txblue on May 29, 2013

May 30, 2013 11:56 AM
by Txblue

6

1,499

1and, 81, 81l, bank, defferance, fan, fuel, liter, paying, performance, powered, professions, raylar, top, trim, vbulletin

8.1L Timing - How low is low?

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1 2)

406jeep on Apr 20, 2013

May 25, 2013 09:42 PM
by 406jeep

17

14,512

383, 81, 97, back, blower, bracket, bucket, chevy, covers, eat, homemade, intake, k1500, low, marine, powered, put, supercharger, vbulletin, whipple

What I bought for the 8.1 starts with W

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1 2 3)

Whipped383 on Oct 29, 2012

May 4, 2013 09:03 AM
by Whipped383

29

9,979

8.1l front mount turbo

whippled 8.1l build on May 1, 2013

May 2, 2013 01:50 PM
by whippled 8.1l build

2

779

42, 42lb, 81, 81l, buy, data, flow, fuel, injector, injectors, lb, marine, performancetrucks, size

42lb 8.1L Marine Injectors

406jeep on May 1, 2013

May 1, 2013 02:29 PM
by GMCtrk

1

6,968

2004, 48, 81, 81l, bbc, big, dart, intake, length, liter, making, picture, port, pushrod, room, silverado, stroke, whipple

8.1 engine options??

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1 2)

scottybeammeup on Apr 24, 2013

Apr 30, 2013 03:18 PM
by whippled 8.1l build

14

12,032

8.1 marine injectors for sale

tweeder on Mar 25, 2013

Apr 13, 2013 03:34 PM
by tweeder

7

1,443

496, 81, allison, ecm, flex, fuel, motor, run

ECM setup for flex fuel

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1 2 3 4)

Ender06 on Feb 25, 2013

Mar 25, 2013 12:07 PM
by Area47

35

4,510

Custom ground cam 8.1

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1 2)

Kerr on Mar 1, 2013

Mar 18, 2013 08:49 AM
by Kerr

13

4,011

8.1 tuning files

sparks454 on Mar 17, 2013

Mar 17, 2013 09:07 AM
by sparks454

0

636

44, 44lbs, 60, 81, data, f150, flow, ford, fuel, injector, injectors, lb, marine, rate, tuning

8.1 marine 44 lbs. injector tune help

kogelch on Feb 16, 2013

Mar 13, 2013 12:35 PM
by nonnieselman

9

7,622

496, 81, 81engen, dyno, engine, numbers, performance, results

8.1 engine dyno vid

hog on Mar 9, 2013

Mar 12, 2013 12:24 PM
by hog

4

1,919

2500, 2500hd, 4, 81, 81l, 95, chev, chevy, dually, exhaust, exhuast, gas, gm, inch, k3500, muffler, mufflers, oem

How would a 4 inch exhaust be on a 8.1?

24gt24gt on Jan 1, 2013

Mar 5, 2013 07:20 PM
by tman_2006

6

10,269

04, 240sx, 2500, 81, chevy, dbc, dbw, lq4, lq9, ls, motor, out, swap, tb, truck

DBW and DBC TB's?

1MeanGreenZ28 on Mar 2, 2013

Mar 3, 2013 02:37 AM
by Koots

6

5,807

1.8 rockers and cover spacers

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1 2 3)

BigDaddy0381 on Aug 2, 2012

Mar 2, 2013 02:11 PM
by BigDaddy0381

26

3,721

81, arms, big, block, gen, general, intake, leveling, manifold, motor, motors, mybb, powered, rocker, vi

upgraded 8.1 rocker arms?

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1 2 3)

usaf_hess on Feb 15, 2013

Feb 28, 2013 08:35 AM
by Kerr

25

25,160

02, 1985, 2013, 81, 81vortec, addon, chevy, kit, performance, sale, supercharger, truck, turbo, twin, vortec

8.1 vortec supercharged?

silverado496 on Feb 5, 2013

Feb 26, 2013 07:45 PM
by xx_ED_xx

6

3,996

FORCED INDUCTION

8.1 Exhaust

usmc3521 on Jan 23, 2013

Feb 25, 2013 12:56 PM
by Kerr

5

1,787

need help on building 8.1 liter

stan 8.1 on Dec 28, 2012

Feb 25, 2013 12:54 PM
by Kerr

6

1,958

GMT 800 & Older GM General Discussion

6.0 vs 8.1?

gmc123 on Jan 30, 2013

Feb 19, 2013 12:54 PM
by hog

8

14,655

WTB: 8.1 injectors and 80 stall converter

kelsey_canard on Jan 31, 2013

Feb 10, 2013 01:32 PM
by kelsey_canard

5

546

WTB (Wanted To Buy)

53l, 81, chevy, ground, strap, straps, trucks, virginia

Major Ground Strap ISSUE

Ender06 on Feb 6, 2013

Feb 7, 2013 02:42 PM
by Ender06

3

1,256

WTB: 8.1 8100 Supercarger

rao on Jan 26, 2012

Jan 24, 2013 04:54 PM
by rao

4

722

WTB (Wanted To Buy)

2006, 81, 81l, diamond, fastest, forums, jeep, memberphpu, mods, oil, pistons, power, powered, raylar, vbulletin, vortec

Fastest 8.1 Thread...

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xx_ED_xx on Sep 20, 2010

Dec 19, 2012 11:47 PM
by xx_ED_xx

77

26,333

GM Drivetrain & Suspension

2002, 81, 81l, cab, duramax, gas, liter, regular, standard, swap

8.1l - duramax swap

whippled 8.1l build on Dec 18, 2012

Dec 19, 2012 08:46 AM
by 03sierraslt

5

2,304

81, cylinder, f150, fire, ford, headers, idle, lightning, mis, misfire, misfires, missfire, ss, trailblazer, truck

P303 random misfire code #7 cylinder!

juicedsierra on Sep 18, 2010

Dec 13, 2012 11:50 PM
by TexasGMC08

5

2,267

GMT 800 & Older GM General Discussion

Looking for advise on injectors but not the leg work.

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1 2)

kogelch on Nov 2, 2012

Dec 11, 2012 07:39 PM
by kogelch

11

1,689

FUEL SYSTEMS

180, 81, 81l, additive, additives, benefit, consumption, engine, hemi, high, mileage, oil, thermostat, truckers, trucks

engine oil additives

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1 2 3)

lawdog49 on Mar 27, 2011

Dec 11, 2012 03:44 AM
by Koots

21

5,671

5spd, 81, 8100, chevy, efi, engine, forum, liter, live, mods, net, parts, performance, silverado, trucks, tuning, vortec

FS: Vortec 8100 Engine 8.1 liter 496 cid

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1 2 3 4)

gen3performance on Sep 12, 2010

Nov 10, 2012 07:45 PM
by blakvmax

36

13,756

23l, 2500hd, 81, 81l, alternator, install, intercooler, kit, part, relocation, supercharger, tronics, whipple

8.1l whipple feeler

whippled 8.1l build on Oct 20, 2012

Nov 5, 2012 10:37 AM
by whippled 8.1l build

8

4,369

8.1 32lb injectors for sale, low mileage

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1 2)

1FSTZ71 on Oct 11, 2012

Nov 2, 2012 10:41 AM
by 1FSTZ71

16

2,164

1l, 2002, 81, 81l, charger, engine, kit, l18, pic, super, supercarger81, supercharged, supercharger, xl, yukon

8.1 supercharger?

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1 2 3)

sand man on Nov 18, 2011

Oct 23, 2012 08:19 PM
by Whipped383

29

10,682

48, 81, bear, black, blackbear, emails, forum, improvement, nelson, performance, posts4wdrock, power, responding, springswyoming, tune, tuning

Blackbear tune

usmc3521 on Oct 9, 2012

Oct 21, 2012 10:34 AM
by usmc3521

5

2,272