schip43

Fine, I'll do more mods and find a track, Fernley is a track near me but I don't think it has a long enough straight.

What about the splitters are they for real or will they break at speed?

CPR

Are referring to mine?

porshhhh951

That's funny.

JohnKoaWood

No this is..

http://www.roadandtrack.com/article....rticle_id=2572

"Distance (in feet) behind Lola-Ford Cosworth Champ Car at end of Mile"...
...
"Toyota Prius 3249"


BWAAAAHHHHHAAAAAHHHAAAA

Of note:
Hennessey Venom 1000 Twin Turbo Viper
Speed at 1 mile: 210.2 mph — 1st

Saleen S7 Twin Turbo
Speed at 1 mile: 205.7 mph — 2nd

Lola-Ford Cosworth Champ Car
Speed at 1 mile: 203.3 mph — 3rd

Ruf CTR
Speed at 1 mile: 185.8 mph — 4th

Jaguar XKR Trans-Am
Speed at 1 mile: 180.5 mph — 5th

Pontiac-Riley Mk XI Daytona Prototype
Speed at 1 mile: 180.3 mph — 6th

Ruf R Turbo
Speed at 1 mile: 180.2 mph — 7th

Vortech Mustang GT
Speed at 1 mile: 179.0 mph — 8th

MV Agusta F4-1000 MT Tamburini
Speed at 1 mile: 174.7 mph — 9th

HPA Audi TT
Speed at 1 mile: 172.2 mph — 10th

Ford GT
Speed at 1 mile: 171.4 mph — 11th

Lamborghini Murciélago
Speed at 1 mile: 168.0 mph — 12th

Dodge Viper SRT-10
Speed at 1 mile: 159.7 mph — 13th

Chevrolet Corvette
Speed at 1 mile: 154.0 mph — 14th

I would love to see a 951 that will hold it's own among this list...

CPR

And please note that is a FORD "GT"....not a Mustang GT.

They can't...at least not 99.9% of them. That's why we need:

Slips Please

DanaT

Are you saying that a 951 wont do 170mph or wont do a standing mile at 170mph?

That is two VERY different statements.

Also, 170 and 190 top speeds are VERY different statements.

-Dana

porshhhh951

When was the last time you got a slip from a highway pull?

DanaT

I haven't got one. I had a buddy that got a slip that was a little over 120mph in a 55 zone.......

-Dana

Thom

The OP wasn't specifically refering to the standing mile.

Using a 944/968 to break some standing mile record may be as useful as teaching a fish to ride a bicycle

Papamurphdog

True and false. Stock 951; no way. End of that discussion. But, I crest 155+ mph on the back at Road Atlanta and I am not alone... there are MANY 951's that can do this. I've never been on a track where I could go flat in 5th for a top speed run, but I am certain I can easily peg the speedo at 160... sooooo...
would it hit 170+ I think maybe, but that would be about it. 180+? Don't think so (I would certainly soil my pants just after 160+ anyway) Also, since you are essentially a ground based airplane after about 120, wing configuration, rake, front spoiler, etc., all start making a big difference. My big wing is likely slowing me down after 140 or so...

Yes my car has "a lot of mods" but that wasn't the point of the discussion was it? I think my car could peg 160 and pehaps peek at 170, but no more. I'd bet peak speed at about 168'ish... and some new underwear.

DanaT

The PO of may car (many many moons ago) built the car to run in the Pony Express Race (I bought the car in '98 and he last ran that race in '97 IIRC). It is by far not one of the most powerful 951s on the board.

I think he was clocked on radar around 179mph.

Maybe we can find him?

-Dana

odurandina

2bridges: "In the 951 I've run the salt flats, standing mile and ORR events."


---- So, with the traction on the salt as bad as it is, did the front of your car get light and the steering go "squirrely?"



schip43: "What about the splitters are they for real or will they break at speed ?"


---- My guess is, running large splitters and big rear spoilers is extremely important for life after 160 mph.

Surely, the stock 968 wing is useless.

Unfortunately, going big in the front and back is going to slow our cars down a lot.

I am hardly a racing expert, but

assuming the 951 and S2 are close to the 968... use [expoxy resin for 944, Duramix "30 minute" resin for 968], cf or glass to build up [at least the inside of the front and bottom] and preferably, both sides of the bumper where the splitter attaches to make the whole deal a lot stronger... [drilliing some 1/8" holes in the front part of the lower bumper is also a good idea because then the resin will really seat on the bumper]...

be prepared to spend the better part of a day working this...

Next, make up a longer and slightly wider cf/or sheet metal anchoring plate that [anchors the batwing and splitter along the inside of the bottom of the bumper]... for the 968, the stock plate is way too small... add additional bolts, huge washers and you will be ready to run a larger splitter.

I am building a hybrid splitter from a 997 nose because I wanted something that looks a little different, so for me this whole process is a much bigger problem and involves a lot more cf and some cf tubing.

I'll get photos up soon.

CPR

What I more specifically referring to was that these cars, whether in stock or "decently" modified form, are NOT 170++ cars. It would be interesting to see "some" actually go 160mph.....then turn left.

Much like Rick said past 120 aero becomes a big part....past 140/150 aero becomes a HUUUUGE part. And while creating enough downforce to keep us on the planet, unfortunately these parts also create drag. Lots of horsepower/tq is needed to combat this........

CPR

I have no doubt there are a few cars on the board that can do a TRUE 170mph. But not many. With most speedos topping @ 160, and known for being inaccurate at that, where is all this "I did 170" talk coming from anyway? How does one know? I would just like some proof is all.

I would say less than 3 in the 190 range on this board...

In the standing mile I do not think there is one car here that could do 170, doesn't mean it couldn't happen...or hasn't happened, just don't ever remember it.

odurandina

I was never interested in budgeting a mile project, or subjecting my car to that type of torture. I will visit an open road event at Sandhills, Big Bend or Silver State at Wendover or Elko, etc, or the Texas Mile just to see, but likely, never run in one... Seeing the locals running Watkins Glen, Pocono, Lime Rock, Loudin events is cool and all, but,

I was interested in you-all tell your stories of building your cars for top end, not just for destroying BMWs and 911s at the track or on the street.

I am building my car for a 190 mph top end on a very long straight... and then enjoy bragging about it after. It's going to take a lot of work and $$$ to do it, beyond the dozen or so small projects I have completed already, including transmission rebuild and fitting a 0.862 5th gear and 0.660 6th gear. Then have someone like Tony G. who can fuss with all the details, install an LS2 with a few add-ons.

As far as mph defects are concerned, the correct tire size is 25.6 inches for my 968 and that has my speedo dead on at 120 mph... .

With the right tires, go out and run 120 mph BY THE TACK and look at your speedo... If your mph is over, then, with the car off touch the back of the needle with your index finger and as gently as you can, push upward... use your other index finger to retard the action of your right finger and be very careful.

Your speedo will come back just a little and read accurate on your next 120 mph pass.