Can you spin your tires?

[mongoose]

Yeah - mine gets a little bit of wheel hop on the launch as well (Z rated tires) and chirps into 2nd. This is when I stomp it off the line. My solution was to not stab at the gas, rather I feel for the break point and let my foot ride into it while maintaning traction (and countersteering against all the torque too). You want your car to hook up anyway, not smoke em, right?  :D

[corvette]

Just got the TopGun 160 (and filter mod) installed, and I have to agree with mongoose, you really need to manage the throttle, as this thing will light the road on fire (or all the smoke would make you think so). The hole-shot is fantastic, what fun to pull next to a buzz-bomb ricer w/ a coffee can an $2500 in wheels and play with him. I just apply enough throttle to keep ahead of him, when I get traction, then I ante up a little more and tease him. Next light, they let it all hang out, and again I just spool a little harder, kinda' like playin a big ole' Bass!

[1trucavalier]

I think i figured out  your problem.   Its you intake.  When i remove the stock intake and then punched it i burn the tires immediatly,  with the intake on I can barely spin the wheels in a turn.   Of course if you remove the stock intake you are going to exceed 9.5psi which will result in boost cut so in plain old words you must get a chip!!!!!!

[Tooky]

Just wanted to post an update to this old topic.  Since I installed the BoostValve manual boost controller and set it to 8-9 PSI, I can now spin the tires massively through 1st and halfway through 2nd gear up to about 40-50 MPH.  I raced some RWD Lincoln car egging me on at a stoplight the other day and tried easing in the throttle from an off-idle launch and when I saw them right next to me I could not resist putting my foot straight to the floor -- it left 2 black marks all the way across the stoplight intersection AND THEN SOME!!  I went back the next day and the marks were still there.

If I brake-torque the motor from a standstill and generate boost and THEN floor it, OMG it nearly does a "Top Fuel burnout"...  So yes it definitely can spin the tires now; in fact I'm all too aware of that and I hardly ever hit the gas in 1st gear anymore while it's winter here..  road is too cold; I'll never hook up.

It's all from the massive spoolup of that manual BoostValve.   8)  :lol:

[Mike J.]

On the subject of tire spin, some factors that can effect whether the tires stick hard are:
the tire quality, the road surface, the temp of the ground, and STE's have skinnier tires.  

On the subject of top speed,  I have 2- TGP's, one is a low mileage car with no mods except a K&N cone.  The other is a higher mileage car with a rebuilt trans.  The weird thing is my low Miler car does as Chris A. stated that the trans. kicks down to 3rd when floored at high speed, limiting top speed.  My higher mileage car does not kick down but stay in 4th and can pull a top speed easier.  Any one no why there's might be a difference between ?  Does anyone elses car stay in 4th for a top speed run ?  :?:    :?:    :?:    I prefer staying in 4th at high speed.

[Jeff M]

To tell you, I base my points on 13 years of experience, and talking to over 2,000 TGP owners :-).  First tire spin on Josh?s TGP.  There are variations between all like cars, miles even being the same or even if both were new or both had 10K miles.  The times posted in mag on these TGPs back in 1989 and 1990 showed new models having ets from a best of 15.3 to worst of 16.3, and 0-60 best of 7.0 (in 20 DEGREE weather) to a worst of 8.4 (in 80 DEGREE weather!!).  Now both those statements indicate the variances in new vehicles ALONG with the effects of weather, give any 2 TGPs in the same weather will have different ets!  Slower TGPs I have found were sometimes the result of the variations on wastegate spring pressures, but there are other factors with these turbos now that they have some mileage on them, key issue is previous maintenance, any burnt oil/mineral oil use with abuse, and the turbo might not spin as freely.  The other more common problem is the turbine wheel contacting the turbine housing, this from combustion byproduct build up closing the clearances between the 2, and I have seen my share of TGP turbos, and have cleaned out the build up and gained back good powerful spool up.  There are other problems such as the cat getting plugged/partially plugged from running with a cracked OEM crossover pipe and the excessive rich fueling it causes.  Aside from those, there is the possibility of the tranny fluid filter being a little full of debris and not allowing full fluid flow.  There many other variables aside from just those in newly assembled engines that the mags have proven year after year, a test on a couple of ZR1 Corvettes, that ran 1 second faster with the older 380 hp motor than the bigger 405 hp motor.  So, Jason may find when the weather gets warmer he has better traction from warmer rubber/pavement and not as dense of outside air!!  Don?t bum about it, get chip?d :-).

Now on that tranny issue going or not going into 4th gear.  Some of the first 1989 TGPs were setup to allow 4th gear and WOT, but very soon there after this feature was removed, and for very good reason, 4th gear only has 1 clutch and 1 steel (2nd gear has 10 !!!).  So from the failures of 4th gear and WOT, GM took out that feature to save failures, and I hope you are listening, DO NOT run WOT and 4th less you want another rebuild!!  OK, yours is a 1990 and can do 4th and WOT, its not normal and indicates you should be very careful to not beat on this tranny by doing any high speed runs, specially on warm to hot days, or like I said in my first sentence above, will find out the tranny will fail/did that once so, learn from my experiences.  On that same topic, ALL TGP owners should avoid running 90 and above mph especially on warm to hot days, I know too many owners who were into this and soon had dead trannys, its that single clutch and steel that is the weak link that we must avoid pushing (In the performance tranny rebuild kits I will have, 4th gear is fixed 3 times over and comes with double the clutches and steels).  So, easy on those TGPs and high speed running!!!  If you need to brag, no one will know, just say they can break 150 mph, I have done it and so has a few others, that?s a fact!

Jeff M

[TGPilot]

Now on that tranny issue going or not going into 4th gear.  Some of the first 1989 TGPs were setup to allow 4th gear and WOT, but very soon there after this feature was removed, and for very good reason, 4th gear only has 1 clutch and 1 steel (2nd gear has 10 !!!).  So from the failures of 4th gear and WOT, GM took out that feature to save failures, and I hope you are listening, DO NOT run WOT and 4th less you want another rebuild!!  OK, yours is a 1990 and can do 4th and WOT, its not normal and indicates you should be very careful to not beat on this tranny by doing any high speed runs, specially on warm to hot days, or like I said in my first sentence above, will find out the tranny will fail/did that once so, learn from my experiences.  

If you need to brag, no one will know, just say they can break 150 mph, I have done it and so has a few others, that?s a fact!

Jeff M

I wanna brag!!! :lol:  There is a ratio to figure out what the actual speed would be, but at 4750 +/- 200RPM with my 5-Speed I showed 138MPH on the HUD. As far as I can tell my speedo is 15MPH slower than the actual speed. That was a fun night against my ex-girfriends 1998 Porche convertible. She said something about whoever got to her house first got oral sex until they were satisfied!!!

As far as the 4th Gear high speed runs...I couldn't agree more. That is what I think finished off my tranny before I decided (forced) to do the 5-Speed swap in the TGP. I take care of my cars, but when they are built to go very fast...I go very fast!! :wink:

[RedZMonte]

well my TGP has been messed up since I go it and I can punch it even with boost cut and peal/burnout for about 10-15 feet and its an auto BONE STOCK!  so something is wrong with your car  i am using 245-50-16's.

My TGP w/ 147,xxx miles on her has no problem lighting up the tires as well. it is 100% stock. I can light them up for a good 10ft+ as well. Keep in mind i am also at 5000ft altitude. It will spin them if i powerbrake them and when the trubo spools it spins them even harder. I can break them loose from a dead stop w/o powerbraking, it obviously is not as much but they chirp then continue to break lose again when the trubo spools.

I must pick good cars.. my motors all must be wed. motors. even my monte w/ 17's was able to break them lose every now and then. (100% dry pavement)

Shane

[RedZMonte]

She said something about whoever got to her house first got oral sex until they were satisfied!!! :wink:

If that where the wager and she was attractive, I would have beat anyone there on a huffy!  :lol:

Shane

[1trucavalier]

after having my tgp now for a year I can almost guaranty that if you can's spin em its you tranny, not engine.  If you can't boost correctly then of course then its engine related but if it runs good, boost fine, then its the tranny.  The other alternative is to remove the vaccume hose on the turbo and punch it :D just don't go over 3K! :cry:

[Prospeeder]

i got mine, 70k miles, all stock, so i know, an old lady had it, i doubt its chipped, but u smash the gas at a stop and u just spin the tires, flat dry pavment, too, i did it, rocks from the road flyin up hittin the hood and smoke and the wheels are screaming and its sittin at 5k RPM's just burnin out, it doesnt shift till it gest enough traction

[90TGP]

Wow, old post. But to update with my car, I can spin my tires all the way through first with my current mods  :twisted:  Got to learn to control it though when I'm at the track so I can bring down my 60ft.  :oops:

[mfewtrail]

Since this thread was revived, I guess I'll post.  My TGP(chip, intake, & 2.5'' exhaust) will roast the tires for a LONG way from a dead stop and just punching it.  I've also launched w/ boost once on my Goodyear RS-A's(stock size) and that probably took a few thousand miles off of the tread life, awesome smoke show.  :mrgreen:

[dbtk2]

My STE when it was stock, would take off from a stop and then chirp the tires after getting up to about 5mph.  After a modified boost controller it would smoke them up to about 20mph or so.  Then I cut the cat out, put a K&N filter on the turbo, and put a chip in, and holy hell.  From a 20mph roll the tires would break loose.  Now with the topend from a 20mph roll it makes a smoke show.

The TGP coupe however, will just barely chirp the tires off the line.  IF you brake torque it will brake them loose okay, but on sticky pavement it grips.  This is why it cuts 2.0 60's at the track, because you brake torque to 3k and mash the gas.

All cars are different...

Shawn

[SpeedDemon]

My tires will light up if the wheels are turned. I tried it one day at a four way stop and after I straitened the wheel out the tires were still spinning (for about another 5 feet). And thats with just flooring it from a stop. The only mod I have is a K&N air filter and thats with 225/60 16 tires :( (working on replacing the bent rack and pinion before I buy new tires).