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Anybody out there have the correct 8.5 rear for the syty? Please PM me if so. Thanks.

Anybody make a stainless brake line kit for a syclone? Same as an S15? Thanks

Looking for either a complete from A Arm kit w coilover or just the correct coilovers with stock A Arms. I am running a ls motor single turbo which is probably heavier than the stock sy motor although I have aluminum heads. Shoot me a PM if you have a set for sale. Thanks!

Hello, I have been on the forum for a long time and have owned a fairly stock sy for a while. I have been fairly involved in the LS scene for a long time, and was presented with an opportunity to purchase a syclone with an ls swap this summer. Its a 47k mile body, but the work done was pretty...

Doing a large single turbo ls swap into a sy. Started tabbing headers and such and my trans builder is doing a 4l80e with a brake for me. This is a 94mm turbo deal. Aside from the rear, is there any companies that offer upgrades for the front shafts, transfer case, and front diff? Anybody care...

Hello, I have owned a relatively stock syclone for years, and just picked up a 47k mile syclone with an ls swap. I run a GMC dealership, so I thought it would be neat to build a wild turbo syclone. Digging into it has revealed it needs to be completely redone. I even thought about selling it...

I recently purchased a syclone with an ls1 swap. Plans are to swap to a 4L80E, 402 iron block, 88mm single. My question is this - I would possibly want to do a 4x4 transfer case so I can switch to 2wd to do a burnout at the track. Anybody have any experience with this?

I want to put new wires on my sy as they are the origionals......Probably time for an upgrade. I would like to use something other than the stock ones (I don't think they are even offered anymore). I'll probably just make a set like I did for my TA. I would like to get ones that fit in the...

NooB question - I have been able to successfully connect to my Ostrich emulator for my Sy, but I'm having a tough time reading the ALDL connection to datalog. I am using the ALDU1 + CABL1 Combo from Moates.net. Anybody have any suggestions on troubleshooting? Conrad

Hello, I am new to tuning with TunerProRT and have an XDF file for my 1991 GMC syclone. My problem is that when I upload my bin file, I can't seem to bring up the editing tables. I can download to my emulator (which isn't connected to my PCM), but I can't seem to pull up my editing tables...

Are you guys having good luck with the stock spark plugs in lightly modded applications? I have the ultimate chip and that's about it.....20 PSI T2 Timing. Should I stick with the stockers or go a bit colder?

Hello, I have a low mileage (27000k) 91 sy that I'm looking to make a little more fun to drive...stock its fun but I'd like to make it a little faster. I'd like to eventually go to the track and run 11's on the stock internals if possible. I've been looking into getting an air to air...

Hello, I am new to this forum and I have a question for you guys. I've had a 1991 syclone for quite some time now. It has a KB cold air intake, ultimate chip, warlboro intank, KB boost a pump, KB regulator, and KB underdrive pullies. It has 27,000 miles and I only dirve it about 500 miles a...