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1991 Syclone Walk-around Video February 4, 2021
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International SyTy Registry

GMC Syclone, Typhoon, & Sonoma GT History and Data

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Another JoyRyde

Member Feature Sep 11, 2019 1

We’ve featured Tom Joy’s LSX iron block truck here...

Growing up SyTy

Member Feature Aug 31, 2017 7

For most car and truck enthusiasts, speed and power...

Hemmings Muscle Machines

General Jun 25, 2017 1

In the July 2017 issue of Hemmings Muscle Machines...

Car Fix on Velocity

General Mar 18, 2017 0

Car Fix is a show on Velocity TV hosted by Lou...

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4staff
picks

Another JoyRyde

Member Feature Sep 11, 2019 1

We’ve featured Tom Joy’s LSX iron block truck here...

Growing up SyTy

Member Feature Aug 31, 2017 7

For most car and truck enthusiasts, speed and power...

Hemmings Muscle Machines

General Jun 25, 2017 1

In the July 2017 issue of Hemmings Muscle Machines...

Car Fix on Velocity

General Mar 18, 2017 0

Car Fix is a show on Velocity TV hosted by Lou...

Truck Nationals

SyTys@Carlisle 2020 Review

SyTys@Carlisle 2020 Review

Events General SyTy News August 22, 2020 0

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SyTys@Carlisle 2021

Days to SyTys@Carlisle 2021August 6, 2021

109 days to go.

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1991 Syclone Walk-around Video

1991 Syclone Walk-around Video

General Feb 4, 2021 0

92 Sonoma GT Info Page

92 Sonoma GT Info Page

General Jan 3, 2021 0

Forza 4 SyTy Returns

Forza 4 SyTy Returns

General Oct 27, 2020 0

Another JoyRyde

Another JoyRyde

Member Feature Sep 11, 2019 1

LSR Syclone – News Flash!

LSR Syclone – News Flash!

SyTy News Jul 17, 2020 1

Gale Banks talks Syclone

Gale Banks talks Syclone

SyTy News Dec 24, 2019 1

About ISTR

Welcome to the home of the International Syclone Typhoon Registry (ISTR), the only digital magazine and source that is aimed specifically towards the information and history of the GMC Syclone, Typhoon, and Sonoma GT! This site was built to educate, inform, and share knowledge based around the famed Sportmachine trucks.

ISTR was built to take data, information and latest news stories to be able to collectively share it amongst owners and enthusiasts.

Recent Comments

1991 Syclone Walk-around Video

1991 Syclone Walk-around Video

General Feb 4, 2021 0

92 Sonoma GT Info Page

92 Sonoma GT Info Page

General Jan 3, 2021 0

Another JoyRyde

Another JoyRyde

Member Feature Sep 11, 2019 1

LSR Syclone – News Flash!

LSR Syclone – News Flash!

SyTy News Jul 17, 2020 1

ISTR Instagram

1992 GMC Typhoon 437 Owner: Jesse Carpenter @carpe

1992 GMC Typhoon 437
Owner: Jesse Carpenter @carpenter.jesse

:: Hover Mode Engaged ::

Jesse giving the front tires a little break from work. 😎👌🏽

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #sporttruck #theofficialsyty #turbotruck #gmnation #turbocharged #alltheboost

1992 GMC Sonoma GT Owner: Johnnie Garage Johnson @

1992 GMC Sonoma GT
Owner: Johnnie Garage Johnson @johnniegaragejohnson

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #sonoma #s10 #2wd #naturalyaspirated #poormanssyclone #minitruckin #s10life

1991 GMC Syclone Owner: Lori Kline #sytyregistry

1991 GMC Syclone
Owner: Lori Kline

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #sporttruck #theofficialsyty #turbotruck #gmnation #turbocharged #alltheboost

1992 GMC Typhoon Owner: Dexter Lavert 📍Tennesse

1992 GMC Typhoon
Owner: Dexter Lavert
📍Tennessee

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #sporttruck #theofficialsyty #turbotruck #gmnation #turbocharged #alltheboost

1991 GMC Syclone - The Mutant Current Owner: Neil

1991 GMC Syclone - The Mutant
Current Owner: Neil Demosthenous @neildemo

The Mutant. Why? Cause this is most likely the only Syclone that is TWIN CHARGED. Wait, what? Yeah. Twin charged. Supercharger and Turbocharger. GTFO?! No...yeah, believe it. 🤯😳

PUT THE BRUSH GUARD BACK ON, NEIL!

Specs:
4.3 marine Crank Forged Bottom End, Holly Dominator, T56 trans, Little Brodix Heads and Twin Compound Charged Eaton Supercharger/Turbo .60

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #turbotruck #gmcnation #allblack #sonoma #sporttruck #alltheboost #chevys10 #twincharged #eatonsupercharger

1993 GMC Typhoon 📷:???? 💚 #sytyregistry #i

1993 GMC Typhoon
📷:????

💚

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #sporttruck #theofficialsyty #turbotruck #gmnation #turbocharged #alltheboost

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