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Directory Topics Posts Last Post
Common Room
General discussion, SyTy related or not. Most of these types of conversations are more fit for Facebook at this point, but we didn't want to eliminate this section completely.
Topics: 38 Posts: 158
38 158
djsy934
Non-SYTY JT2ST07N4R0011333
by djsy934
The proving grounds of SyTy racing. Drag strip, autoX, standing mile and street action.
Topics: 6 Posts: 10
Last Post: Fastest SY/TY
6 10
Twistedsanity
Fastest SY/TY
Restorations, modifications, or just the joys of ownership...start a diary thread on your truck(s)!
Topics: 14 Posts: 74
14 74
ISTR news and updates regarding the forum. Post your issues or problems here.
Topics: 10 Posts: 11
10 11
sytyguy
ISTR Financial Reporting
by sytyguy
This is a redirect to the ISTR OT on Facebook. If you are not on Facebook, anything you would normally post here may be posted in SyTySoGT Chat above.
Topics: 0 Posts: 0
0 0
Information & Historical Data
SyTySoGT related articles, news feeds, print media, TV appearance, and videos recently published.
Topics: 15 Posts: 16
15 16
From part numbers to fluid info, your guide to SyTySoGT ownership.
Topics: 6 Posts: 10
6 10
SYO237
Stock Engine Specifications
by SYO237
Learn about PAS, prototypes, and the history leading up to and during the production of the sportmachine trucks.
Topics: 10 Posts: 12
10 12
SyTySoGT Tech
SyTySoGT related how-to articles from modifications to fixing common issues. Sponsored by:
Topics: 7 Posts: 8
7 8
Topics: 24 Posts: 79
24 79
Topics: 8 Posts: 18
8 18
Topics: 14 Posts: 36
Last Post: too much boost
14 36
Twistedsanity
too much boost
Topics: 1 Posts: 2
1 2
Lfink
DuPont Interior Trim Paint Codes
by Lfink
Topics: 3 Posts: 15
3 15
S678
Typhoon glass handle removal?
by S678
SyTySoGT LS Conversion discussion.
Topics: 3 Posts: 50
3 50
FastBlackTA
Ls Swap Single Turbo Build
SyTySoGT Events
2017 Carlisle Truck Nationals August 5th - 7th Carlisle, PA
Topics: 11 Posts: 52
11 52
2018 Carlisle Truck Nationals August 3rd - 5th Carlisle, PA
Topics: 6 Posts: 13
Last Post: 2018 roster
6 13
Syclone Rob
2018 roster
Topics: 22 Posts: 55
22 55
Aeroking
4th Annual Buffalo SyTy Meet
Classifieds
Topics: 31 Posts: 58
Last Post: Zr1 wheels
31 58
Skolman91
Zr1 wheels
Powered by:
Topics: 3 Posts: 4
3 4
Vendors Row
Topics: 6 Posts: 14
6 14
SVO
BRUTUS: The new shop Typhoon
by SVO
Topics: 0 Posts: 0
0 0
Topics: 1 Posts: 1
Last Post: Bumper bracket
1 1
SyRob
Bumper bracket
by SyRob

Welcome to the ISTR Forums!

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The International Syclone Typhoon Registry is an organization that is focused on the accurate history, preservation, technical information and data collection of the 1991-93 GMC Syclone, Typhoon, & Sonoma GT sportmachine trucks.

Please consider becoming an ISTR member to gain access to REALLY cool stuff, get entered into members only raffles, and to get discounts from our vendors!

ISTR Instagram Feed

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There are currently 13 users online. 0 members and 13 guests.

Most users ever online was 121 at 12:18 PM on 05-05-2017.

ISTR Forum Stats

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Topics: 299   Posts: 779   Members: 262   Active Members: 27
Welcome to our newest member, Earl mann.
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