there are alot of guys in here that say they cant build to much boost on a launch, because they will smoke all 4. my truck runs very well and I cant smoke all 4 off the line no matter how much boost I build, My ? is could somthing be wrong with my truck, I ran a 1.8** At the 60, which seems normal, just wondering.
4 smoking
- Thread starter #4ty
- Start date
If you have a stock chip the boost limit launch will be engaged, limiting boost off the line. Some say you can overcome this by building more the 10 lbs. boost but I'm unsure if they mean since the truck was started or after you pull to the line. I'd stage for a launch, build as much boost as possible(don't power brake more than a few seconds for the trans' sake) and once over 10 lbs. either pull out a bit and respool to launch over the 1 or 2 lbs allowed stock, or just pin it and lay waste to your tires. My truck didn't have this feature when I got it(possible chip in it as it goes way over 120mph too) but totally stock 2 lbs hazed the tires for a foot or two and as much boost as possible left 2-6 feet of rubber.
J
<font size=-1>[ This Message was edited by: sy2185 on 2002-01-23 07:21 ]</font>
J
<font size=-1>[ This Message was edited by: sy2185 on 2002-01-23 07:21 ]</font>
Loeryder
New member
Maybe we should ask SPiN...
Do these trucks spin 3 or all 4???
Just givin you shit man. :lol:
If RR tunes your truck it is supposed to spin all 4 thats part of the deal.
Thats how you know if you got your moneys worth or not.
_________________
Jas'
www.sytyauthority.net
93 wht/gry Ty #0492 - MRTY2U
2000 5.9RT blk CC
MY00 Impreza 2.5RS - herz
<font size=-1>[ This Message was edited by: Loeryder on 2002-01-05 21:56 ]</font>
Do these trucks spin 3 or all 4???
Just givin you shit man. :lol:
If RR tunes your truck it is supposed to spin all 4 thats part of the deal.
Thats how you know if you got your moneys worth or not.
_________________
Jas'
www.sytyauthority.net
93 wht/gry Ty #0492 - MRTY2U
2000 5.9RT blk CC
MY00 Impreza 2.5RS - herz
<font size=-1>[ This Message was edited by: Loeryder on 2002-01-05 21:56 ]</font>
turbojimmy
New member
I don't know if it's normal or not, but I get substantially more spin out of the back before the front grabs. All within a second or two of each other, but enough that the back will kick out before I hear the front tire(s) bark. It'll also kick the back out if I gun it on sharp turns before the front tires will grab and straighten it out.
Jim
Jim
Mephisto
These trucks are cursed
my back tires spin, if i launch with more than 3lbs of boost, and i have brand new tires... what im wondering is... if only the rear tires spin and the fronts stay put, isnt that bad for the transfer case?
i remember reading some shit about that messing with the coupling and eventually causing problems??
btw, i get 1.8xx 60' times with my stock sy, so i think yours is ok
_________________
Syclone #1931
So Cali
What's A Propshaft?
<font size=-1>[ This Message was edited by: Cold Wind Of Death on 2002-01-23 06:28 ]</font>
i remember reading some shit about that messing with the coupling and eventually causing problems??
btw, i get 1.8xx 60' times with my stock sy, so i think yours is ok
_________________
Syclone #1931
So Cali
What's A Propshaft?
<font size=-1>[ This Message was edited by: Cold Wind Of Death on 2002-01-23 06:28 ]</font>
InvisiBill
Active member
The stock chip has a first run boost limit built in. I'm not sure on the details, but it is mentioned in the owner's manual. If you start your truck up, pull out on the road and floor it, you'll only get like 8-10psi of boost.
Sometimes I can just let up on the gas pedal a hair for a tiny bit, and then it'll fly up to 15psi when I put the pedal back down. Other times I have to let off the gas completely. I've noticed it more in the cold weather, so it could be that the boost just isn't dropping enough now when I let off. I've only noticed it right after I start my truck, as opposed to after it's in Park or something.
I have noticed occasionally that there doesn't seem to be a limit. I'm not sure what exactly the limiter looks for to unlimit it, but maybe it was still warm from last time, and the chip saw it as ok to not limit? Or maybe it just bounced off the boost limiter or I subconsciously let up on the gas enough that it hit and cleared it? *shrug*
Sometimes I can just let up on the gas pedal a hair for a tiny bit, and then it'll fly up to 15psi when I put the pedal back down. Other times I have to let off the gas completely. I've noticed it more in the cold weather, so it could be that the boost just isn't dropping enough now when I let off. I've only noticed it right after I start my truck, as opposed to after it's in Park or something.
I have noticed occasionally that there doesn't seem to be a limit. I'm not sure what exactly the limiter looks for to unlimit it, but maybe it was still warm from last time, and the chip saw it as ok to not limit? Or maybe it just bounced off the boost limiter or I subconsciously let up on the gas enough that it hit and cleared it? *shrug*
bdubb
I am teh kingpin!
On 2002-01-05 21:55, Loeryder wrote:
Maybe we should ask SPiN...
Do these trucks spin 3 or all 4???
Just givin you shit man. :lol:
If RR tunes your truck it is supposed to spin all 4 thats part of the deal.
Thats how you know if you got your moneys worth or not.
_________________
Jas'
www.sytyauthority.net
93 wht/gry Ty #0492 - MRTY2U
2000 5.9RT blk CC
MY00 Impreza 2.5RS - herz
<font size=-1>[ This Message was edited by: Loeryder on 2002-01-05 21:56 ]</font>
hahhahahhahah
once again its on
New member
A bad coupling in the xfer case causes that to happen. It's toast. O.G. Dave P. gave a clinic during a wrench session one day.
Jack the front left tire off the ground, try to turn the propshaft with a screwdriver or something....if it turns "freely" or without much effort-the VC is toasted (at least this is how I think you do it).
Jack the front left tire off the ground, try to turn the propshaft with a screwdriver or something....if it turns "freely" or without much effort-the VC is toasted (at least this is how I think you do it).
typhoon4ever
New member
i wanna spin my 4 tires too :grin:
Tooky
Serious about performance
Sorry but I just don't beleive that. Everyone's SyTys seem to exhibit this behavior. In addition, I saw Marty's 5000 mile Marlboro generate smoke from the rear tires spinning doing a brake-stand. I have a photograph actually. Either this is normal behavior or Marty beats the hell out of his Marlboro and has toasted his viscous coupling? Along with everyone else?
92 mean green TY
New member
I would think if you left with 14 psi and you didn't get wheel spin your 60ft would be better.I was gettin 1.6s at 5 psi,you are talking about a sy ?
once again its on
New member
Everyone's? Not mine....not most. You don't have to beat the truck for something to break......parts break/wear for different reasons. Personally, I don't think it's a big deal unless it's significantly altering my 60's.
Yeah, it is a Syclone. I can promise you I'm not getting any spin. I wish I could 60' that well with 5 psi. When bracket racing I usually leave at 8 psi for consistancy, 14 psi takes too long to build. With 8 psi I'm only getting 2.0 60' times. Hell, now I'm worried(pissed) that my 60' times aren't MUCH better. My truck is well-tuned but all stock, if that makes a difference. What's the deal? Do you guys still have the stock stall converter? Mine will stall at 2600 rpm under boost.
<font size=-1>[ This Message was edited by: Eluding on 2002-01-24 20:20 ]</font>
I use an Autometer gauge. I've been thinking...maybe I have some crappy generic tranny shop converter in my truck. It's possible since I bought the truck last spring and I don't know a lot about its service history. I took it out for testing after my last post. It stalls at 1700 at 5 psi, 2100 at 10 psi and 2600 at 14 psi. Could someone tell if that is inline with what a Syclone converter should be stalling at? Thanks.