87uk944t

stock quarter mile time in my handbook says 14.2 secs, i have only dragged my car at one event, i raced against my friends rb5 impreza turbo 3 times and 3 times i lost!!!! it was pouring with rain that day so obviously his 4wd helped him, my best time was a miserable 15.6secs with a 60ft of just under 2.6 and a top speed of 92mph while my friend ran 14.7secs with a 60ft time of under 2 secs and a top speed of 91mph, my car has had upgrades since then (altho its not running great YET) but he has just spent £1600 ($3000) on a prodrive kit so i fear i may never beat him!!!

awilson40

Have you thought of adding Nitrous??? How bout a nitrous controller set up to kick out at 5-6 psi of boost. This would greatly reduce turbo lag and you wouldnt have to slip the clutch to hold rpms up for boost. A guy did this to a 300zx twin turbo and it really worked wonders. I would use a wet system.
Theres a nice flat boss right behind the throttle body on the intake manifold that would be a perfect place to thread for a fogger nozzle.

Joe Anstett

Well, a little better.

My other car is an LS1 TA stock w/ torque converter, dyno'ed 312/331 at the wheels. Best time is 13.2@104, with spinning off the line in 60% humidity. Theoretically I should be able to squeak into the 12s with a perfect hookup and ideal conditions.

But yeah, definitely a 400hp 3000 lb 951 should be trapping much higher, I'd guess in the 112 range, right?

Oh, and another vote for the Nitto 555Rs

rage2

lol I wish. Maybe if I correct it to sea level!

Elevation of 3700ft here. Here's my times from over the years. These are actual track numbers, not G-Tech Pro numbers.

14.1@96mph - Just autothority chips
14.0@98mph - Autothority chips + AVC-R + deltagate
12.7@117mph - 2.5L, big turbo, 28psi, 450whp
12.9@111mph - 2.8L, big turbo, 15psi, 394whp

As you can see from my 2.5L times, peak HP doesn't mean **** if you have a narrow powerband. For the sea level guys, the 4 times corrects to:

13.5@100.6mph
13.4@102.7mph
12.1@122.6mph
12.3@116.3mph

Only if things don't break of course haha. And for the Gtech pro guys, I highly recommend visiting the track for a true timeslip. I've had a gtech tell me that I've run 11's at 130+mph only to pull off a 12.7@117mph. Soft rear suspension makes the gtechs REALLY inaccurate.

hosrom_951

So, a 2.5 was faster but like you mentioned, its the toqure curve that matters.

For the G-tech is concerened, they are +-5% accurate, BUT why we do not REALISTICALLY get it because of spin off. If we find a way to stop wheel spin and hit the gas hard, we would be much closer to these numbers (i think )

As Danno mentioned, getting HP is nothing, since its on the redline. Torque is what would move the car forward, and since it comes early and fally quickly, wheel spin comes in.

Danno, the second dyno graphe looks great !

rage2

Only because I haven't ran race gas on the 2.8L yet. Look at the boost numbers... 28psi race gas on the 2.5L, 15psi on pump gas on the 2.8L.

Can't wait to do a run at high boost on the new motor.

Marks951

With the 951 there is a fine line between it spinning and starting to wheel hop. Wheel hop will break stuff pretty fast. Also, those 60 foot times are really hurting you. Your high horsepower should make up for a lot on the top end but only if you get off the line good.

billgot

Dam rage you have all these corrected numbers in HP and 1/4 mile times.I need to see the real deal get on a Dyno Jet and go down to sea level I wanna know what that beast really does in the right environment.

HoBoJoe

NZ sell your porsche, put half the money into an all wheel drive talon, run a lot faster times...
95 awd talon, air filter, upper intercooler pipe w/ 1g blow off valve, test pipe, centerforce clutch... 13.9 @ 97.5mph... Oh yeah, stock boost...

Danno

"Have you thought of adding Nitrous??? How bout a nitrous controller set up to kick out at 5-6 psi of boost. "

His Link-2 has an additional output for controlling a nitrous soleniod. It can be programmed in a RPM-based table just like boost. So he can program in like 50% nitrous from 2000-3000rpm to combat the turbo lag. Then just 0% from 3000-4500rpm when the turbo comes on really strong. Then 100% from 4500rpm onwards.

Cool thing about this set-up is that it doesn't require additional injectors for fuel. The same injectors are used, and the computer just calculates the extra amount needed to match the nitrous injection. Ignition can also be retarded accordingly as well.

SamGrant951

This is seriously some cool sh*t, how many different maps can a link 2 hold?
Could you run with a nitrous set up to combat lag and then w/o for street driving?

rage2

Dynojet - I'll do a dyno queen glory run eventually after I get all the bugs sorted out. Just to silence the mustang dyno vs dynojet critics . I've done it before on my AMG after people questioned my claims of 340whp (I ended up putting down 341whp on a dynojet).

As for running at sea level, I've driven down to vancouver (not in 951) twice to run, 600 miles of driving only to get rained out. Not gonna do it again heh. Besides, I'm happy with my times as is, I'd like to see any other 951s run 117mph, regardless of elevation. It's tough enough to do at sea level, let alone 3700ft way up in the mountains where Z06s run low 13's and Vipers barely break into the 12's. I know there are a few 951's that are nudging the 130mph mark here with 3L's, so I'm definately not the fastest.

Oh, I'd like to see timeslips, not G-Tech pro runs .

daniel951

When i ran my car i ran a 14.7@100mph. I didn't have the boost turned up all the way and my clutch was practically gone and i was running on heavy *** 18's. I Almost done putting the car back together after the clutch install so i will see what i can do on stock wheels. I also have my races on film if anyone wants to see it but i don't know how to post videos?

daniel951

i also have to make a run to the dyno to tune my car because i don't have a wideband plus i want to see what kind of power i am making

billgot

Has anyone ever tried putting highly compressed air"Nitrogen " into the turbo to aid the spool time of the turbo.The Nitrogen would spin it up fast and shut of when boost is full letting the exhaust take over.Have anyone heard of this or tried it?