Not true unless the LS1 will break the 171 mph barrier in factory stock trim. This is what the actual pace car was clocked at on the Indy track before the race in 1989. You guys have heard of the Indy 500 right?

TTA's came fully loaded with automatic transmissions so compare the two exactly (not to a stripped down manual LS1).

Ignorance is bliss...

 

Indy pace cars are rarely stock.

Pace car got 171, test car in the article posted got 153. Thats quite a difference between totaly stock vehicles. Sorry, I dont buy it.

Though I doubt it would take much of anything to get that much improvement on a turbo car.

 

I have not seen the article about the tta pace car being clocked at 171mph, but I know that the Car and Driver program said the 89 tta was one of a few cars that was totally stock and a pace car. Car and Driver said it was the fastest Trans Am they had tested to date, the 89 TTA I am talking about. They said that the pace car was a bone stock TTA, but I have not seen the 171mph test so I do not have any say on that. I am taking all of this knowledge from Car and Driver. I think they said the tta ran 13.2 and the anniversary 2002 Trans Am ran 13.6 when they tested all the trans ams. I am not sure and this is all from the car and driver show.

 

Buy it or not, the TTA was the 1st car in Indy history to run as a pace car completely 100% factory original with NO mods. Unless you count the addition of strobe lights as performance modifications. This is a well documented fact.

 

Ok, here's your proof. Video of an LS1 getting smoked by a TTA:

http://www.krif.com/tta/Movies/blake...m__ls1_tta.mpg

 

Come one dude....yeah both of those cars were bone stock?!

The most awsome part about that vid was seeing all those TTA's in a line!

I love the TTA and in fact I may buy and restore one some day. Lets face it the TTA was under rated and so are the LS1's. But how do you compare apples to apples here with the LS1 having both 6M and A4 with 2 diff. gear ratios to choose from.

My opinon having driven a TTA and owning a '02 SS 6M I would say that the SS would win the 1/4 and the first to 150+ MPH. But really we should be comparing the WS6 to the TTA.

The fact remains though, an 02 WS6 will lay down 300-320 rwhp, the TTA somewhere around 280-300.

 

After watching that video i would call that not really getting smoked ... i wouldn't even call that a race the Ls1 didn't even launch hah

Probably a bad driver as well?

 

I'll agree with you the LS1 engine makes a few more ponies, but it doesn't come close in the torque number, and torque wins street races. Then again, the TTA topped out at Indy in 1989 at 171mph too....hmmmm.

 

Neither did the TTA...trust me.

As far as them being stock, who's to say either is or isn't??

 

Not even close huh....wanna see my stock dyno sheet w/ only 1200 miles on the car I put down 318rwhp and 330 rwtq.

It was my understanding that the TTA was rated 300hp 340tq and that was flywheel. Even if it's rear wheel it's close!

I haven't topped my SS out yet so I'm not sure on that one. But the TTA was listed as 161MPH so was this car a ringer? Was it absolutly stock down to the computer program....we'll never know!

 

340 rwtq huh? Very odd since mine dynoed at 397 ft/lbs on a chassis dyno. I'd say 67 ft./lbs. is sizeable. Different magazines had different top TTA speeds in their tests such as 166, 159 mph etc. on their courses with their drivers. At Indy with a "real" driver on a "real" track one of the 3 actual pace cars (all still completely original and untouched) hit 171.3 mph in the Indy straights with a professional race driver behind the wheel. End of story. For a refresher press PLAY and review the video a few posts up.

Case dismissed!

Nighty night......

 

hmmm, you show in your sig "1.83 60' street tires" .. what do you call street tires? Drag radials? they are street legal.. or ET STREETS? very vague.. and your dyno run, were you bone stock? how many miles? I am not flaming, just want facts..


as for the video above.. there are no facts to gain from it.. was not on a track and there is nothing known about either car.. moreover if he camera were being held by anyone in my car which is bone stock (I take the MTI lid off) they couldnt hold it that still.. ohh but I am an M6 so I will have to use my 1995 A4 Z28.. Stock it too would hit hard 2nds.. so who knows huh?

 

What bed time for you already!

397rwtq----please post dyno sheet- and do you swear that was bone stock down to the paper filter? And internal oil of the engine. Stock has a broad meaning!

I find it interseting that you have 67ft/lb more TQ than me and you only trap 104 and 12.9 and there is no way you pulled a 1.83 on gaterbacks where's your vid on that one. Granted I am not the best driver but I have trouble pulling 1.8's on the ET streets!

Bone stock( tire pressure and paper filter) I ran a 13.3 at 107.9 with a 2.18 60' on a 80+ degree night at near sea level. Your times are with no cats and a chip!

It's no use watching your vid cuz we don't know what either car had. I can sit here an post vids of my SS roasting z06 vetts but who really cares.

All throttle....then the bottle = 11.8's for me!

 

My 12.93 and 1.83 60' was done with Firestone Firehawk FP street tires at standard tire pressure. No air was added or removed from that of everyday driving.

The dyno was run at the Hot Rod Power Tour when they were in town. I hadn't owned my T/A long prior to it's run and I can't remember if I had the DP on it or not. It would have had 9k-10k on the clock and believe it had the computer chip. The listed mods are the ONLY performance mods on my car. A prior owner added a fuel rail FP gauge, but that's not a performance mod. The rest of the entire car is bone stock original even the restrictive air box. ****, it had the original 20th Anniversary spark plug wires. Here's an up close engine photo:
http://www.krif.com/tta/TTA/tta%20engine%203.JPG

The day of the dyno run the computer was pulling the throttle back at WOT. I later found out the O2 sensor was going bad and changed that so I believe my power #'s were low. The graph looked like Mount Everest (up-down) due to throttle being pulled, that's since been fixed.

On a side note I refuse to believe, as stated before in this post, that a Turbo T/A requires 17 more seconds to gain just 25 MPH. That's simply LAUGHABLE. Indy requires a superior level of acceleration from 80-120 mph to pace Indy cars when the green flag drops. The TTA was able to do it in factory stock trim, A/C included.

 

well documented hu? then how do you suppose the 78 and 86 Corvettes managed to slip by this "documentation"? they were both suposedly bone stock as well. dosent sound like your documentation is worth the paper its printed on

top speed has much more to do with HP to drag than with Tq to weight as in acceleration. Id bet the newer F bods are more aerodynamic than the 89's. and so far no one has disputed they make less HP than an LS1. so it simpy doesnt add up. unless they make more power at about 4800-5000 RPM than the LS1 does at 5200-5300 RPM (this is about what RPMs each car would be at at the indicated top speeds) and no one has spoken up about this yet.

and since we are talking about all LS1s vs the TTA, perhaps we should bring Corvettes into this discussion. they are even more aerodynamic, and lighter, so they should be both quicker int he 1/4 and have a higher top end than the f bodies

anyway, if top speed is as driver dependant as you would like us to belive, then we are going to have to wait untill someone with equal skills does a test of an LS1. Of course we could just use C&D for both of them. 153 for the TTA, 162 for the 99 WS6 Vert (banging the rev limiter)