Could anyone tell me what the horsepower and torque limits would be for a Syclone's AWD system? ie. transfer case, front diff, front drive line? I would like to know how much power can be channeled through those stock components safely, before putting big slicks on back, and just going RWD. I've heard of some folk getting into the 10's with the stock driveline, but you never hear what horsepower and torque levels are required to get them there, or at what point they begin running RWD. Any insight?
Syclone AWD system Torque limits?
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Tooky
Serious about performance
That seems a little exaggerated.. Syclones weigh somewhere between 3500-3600 to begin with, and as people go faster, they tend to also shed weight. I don't believe anyone has ran 10 seconds with a "4000# Sy". In addition, can you name who is making "at least 850 HP"? I would like to read more about their build. Thanks.
TurboTony
Active member
My sy is very close to actual stock weight. I'll have to take it to a scale in the spring and get a real number.
The only things I've removed are the spare tire, spare tire bracket and jack. I'm sure that the ZR1's weigh a bit more than the stockers too.
So far my best MPH is 128.5, you can do the math on that. On the dyno we measured 560ish rwhp, but that was with a nasty amount of wheel spin, so who really knows for sure.
All i've done to the drivetrain is to upgrade the front shaft and build the tranny.
HTH
Tony
The only things I've removed are the spare tire, spare tire bracket and jack. I'm sure that the ZR1's weigh a bit more than the stockers too.
So far my best MPH is 128.5, you can do the math on that. On the dyno we measured 560ish rwhp, but that was with a nasty amount of wheel spin, so who really knows for sure.
All i've done to the drivetrain is to upgrade the front shaft and build the tranny.
HTH
Tony
Is your transfer case the original? Did you upgrade the front shaft as a matter of course or did the stock one break? Thanks.
TurboTony
Active member
Okay I lied, I changed the oil in the T case as well. :wink:
AFAIK the transfer case is original. I doesn't appear to have been apart, but thats kinda hard to say.
I updated the front shaft before it broke. It was kinda obvious that it was only a matter of time. Although we did most of the street tuning and a few trips to the track with the stocker. It's in the corner of my garage now waiting for a rainy day or a typhoon in need. 8)
Tony
The real question is "what do you mean safely"
Pittman,
What I meant by safely is, how much power can be channeled through those components safely, "without destroying them".
I know that the front drive shaft can be upgraded, but I don't think the front diff of transfer case can be. It seems like we have a pretty broad range of speculation here, ranging from 560-850 rwhp. That's a BIG difference!
Pittman,
What I meant by safely is, how much power can be channeled through those components safely, "without destroying them".
I know that the front drive shaft can be upgraded, but I don't think the front diff of transfer case can be. It seems like we have a pretty broad range of speculation here, ranging from 560-850 rwhp. That's a BIG difference!
Well, then are'nt you blowing up the original 7.5 rear on a pretty regular basis? Have you upgraded it yet? That's one hell of a truck you've got there! I plan on running the same ZR-1 wheels on mine, except I don't want to keep them chrome. I was thinking about having them powder-coated a graphite or gun-barrel grey color. Thought that would look pretty cool against a already bad ass black truck! Kinda "stealth" it out a little bit!
Pittman
New member
Speaking of HP I would like to see some numbers. There just isnt alot of 4w dynos around. Sometimes if you do find them they have some pretty small limits. We have a GTS in the family that was built by TnT it runs 11.40's at 128+. That car has posted near 650hp on the dyno. (two seperate dynos) Thats on motor alone, the car also has a 250 wet shot on it too. You know tony's truck has to be on up there.
I know its not "totaly" uncomon for stg II buicks to only turn 800hp but top out the dyno on the tq limits. Yeah I know that depends on the dyno. I think our trucks, as with most turbo engines, torque is a bigger player than HP.
My truck runs with a stock prop shaft and I havent had anyproblems. I have pretty respectable build. All bolt ons. LIke I bolted the heads to the block and bolted that damned block in the frame I didnt weld shit :wink:
Sy's make great pit trucks and pit tow vehicles. Looks really good towing a buick back to the pits. :lol: (fire fire fire eh just wanted to get a rise out of you guys)
I know its not "totaly" uncomon for stg II buicks to only turn 800hp but top out the dyno on the tq limits. Yeah I know that depends on the dyno. I think our trucks, as with most turbo engines, torque is a bigger player than HP.
My truck runs with a stock prop shaft and I havent had anyproblems. I have pretty respectable build. All bolt ons. LIke I bolted the heads to the block and bolted that damned block in the frame I didnt weld shit :wink:
Sy's make great pit trucks and pit tow vehicles. Looks really good towing a buick back to the pits. :lol: (fire fire fire eh just wanted to get a rise out of you guys)
The original question is a very good one, I wouldn't worry about the HP numbers worry about the Torque numbers. Think about it how often do you see a SYTY break at the top end in 3rd gear? I can't think of one, but I've seen and broken numerous launching from a standstill where torque is king. The weight issue is simple, weigh less go faster period. I'd bet Peter H's truck weighed close to 4000lbs with gas and ass :wink: and he cracked the 10's, however, his trans is the exception to the rule he's been very lucky it never puked. I've dumped 3 trannies and I never made the power and torque he's making, until now that is :wink: From what I've seen the stock trans is the only real weak point...once you start making 900+ LBS of torque then you can think of bigger transmissions like the 400 or 4L80...the transfer case has one of if not the best chains made, front ends rarely let go and rear ends don't either until you have a stout trans and a ton of torque....unless you're going balls or ball out :wink: have a nice 700 built up, find the biggest trans cooler you can, and put a SPAL fan on the cooler and you should do pretty good. The rest of the drivetrain has proven pretty stout.