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my timeslip. I hope to improve on it in the coming weeks

Old 08-25-2010, 02:16 PM
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Quote:
Originally Posted by willtel View Post
Very impressive. Your dinosaur is faster than the latest $400000 super car from Japan.

YouTube - Drag Race: 2012 Lexus LFA vs 2010 Nissan GT-R
Ugliest supercar I have ever seen. Seperate digital tachs for sport or normal driving, piped in sound for that "racecar experience". They should just charge an extra 100k and have a robot that drives it for you.
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Old 08-25-2010, 02:41 PM
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that was a video of 2 cars drag racing and the earth is flat. More like a re-creation of what should happen based on information given by the manufacturers. Might as well been a video game.
Old 08-25-2010, 02:48 PM
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He said he has a 1 bar spring, he did not say he was running 1 bar...Still curious what other mods...
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Old 08-25-2010, 05:20 PM
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I have the KEC stg 2 in mine with a Kevlar disc. My problem is no boost in 1st with the G-50 killing any attempt at a low ET.

Your car makes ~20 more hp to the wheels than mine which is showing roughly a 3 mph gain over me.
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Old 08-25-2010, 05:40 PM
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Hi Guys. Yes it does run 14.7psi boost,however as we know its not about boost pressure, flow is what matters. No nitrous as i dont know how to glue the pistons back togeather.... I did have a nitrous sc 3l that just broke everything but did run 12.7
14 years of constant development and practice, especially the launch can help. Bring on boost as you deliver the clutch helps get a strong pull in 1st gear.
Old 08-25-2010, 06:17 PM
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This thread just depresses me.

Even with 475 rwhp I'm sure my drag racing skills would put me no where near 11.3.

We have a nice track in Houston and I keep meaning to take the 930 for the Friday night fun runs but now I'm not so sure
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Old 08-25-2010, 06:29 PM
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Drag racing takes practice just like road racing. I see lots of people at the track with fast cars that run very slow times. If you've never run down a drag strip please just sit and watch the starting line for awhile to give yourself an idea of what to do and how to stage your car.

I have found the only way to get a good launch in these cars is to rev them up then release the clutch in a slow deliberate movement. Perfecting this takes many passes and can be hard on the clutch. You have to make sure your foot is all the way off the clutch when the boost hits or you'll overpower the clutch and have a stinky ride down the track.

Andy930 - have you weighed your car?
Old 08-26-2010, 07:19 AM
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Arrow Perfect Venue...

If you are close by... ZR Auto - Race The Base extracted from Put up or Shutup without permission
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Last edited by JJ 911SC; 08-26-2010 at 07:44 AM..
Old 08-26-2010, 07:42 AM
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Well said drmatera. It seems sometimes more power is not always the only answer.. My car is a stock weight 930 however for the run the carpets,spare wheel,tools,jack and as many other items easily removed were taken off. I guess just removing the muffler,heat shield and the panel below the bumper would be close to 10kg. Weight makes a huge difference,not only in acceleration but also braking and cornering. As i have said the launch is critical and the difference between a spot on launch and a poor start can be as much as a second or so. By the way we had 30 or so cars privately hire the track and your 12.1 would have seen you through to the top 10 easily! well done
Old 08-26-2010, 03:33 PM
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Arrow Might as well go all the way...

Quote:
Originally Posted by Andy930 View Post
Well said drmatera. It seems sometimes more power is not always the only answer.. My car is a stock weight 930 however for the run the carpets,spare wheel,tools,jack and as many other items easily removed were taken off. I guess just removing the muffler,heat shield and the panel below the bumper would be close to 10kg. Weight makes a huge difference,not only in acceleration but also braking and cornering. As i have said the launch is critical and the difference between a spot on launch and a poor start can be as much as a second or so. By the way we had 30 or so cars privately hire the track and your 12.1 would have seen you through to the top 10 easily! well done
Andy

Did you left just enough gas to complete the run? At around 6.216 pounds per US gallon (3.8 litters) it make a difference

J.J.
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Old 08-26-2010, 05:37 PM
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Thats another good point. I had a quarter of a tank showing on the guage. I wanted to make sure there was enough fuel considering the g-force all the way... Didnt want to run out.. In all it was a great day and my car was the only porsche there, mainly all sorts of aussie V8s and some of them supercharged or even twin turbo equipped. still 127 mph was the highest trap speed of the day, the lads were impressed with the 31yr old 930.
Old 08-26-2010, 08:28 PM
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Well got to admire your choice in Guards Red, right-hand-drive, 31-year-old cars, mate (even if yours does put mine in the shade).
Old 08-27-2010, 05:11 AM
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Ha! Just figured it out - it's all in the mirrors!
Must try that
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Old 08-27-2010, 05:28 AM
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Drmatera
When you rev the engine up prior to releasing the clutch in a slow deliberate movement, how many rpms are you at? And do you have limited slip? Thanks.
Old 08-27-2010, 05:31 AM
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Congrats Andy!

Do u have any 60-130mph times? Or any side by side stories with high end cars. I'm sure they had their mouths open..

R u running a 7th injector-just curious...?

Thnxs
Walt
Old 08-27-2010, 05:37 AM
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Quote:
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Ha! Just figured it out - it's all in the mirrors!
Must try that
"Fold those flags in!"
Old 08-27-2010, 05:59 AM
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How funny! yes the mirrors folded! I always do that when racing. Im sure ive read somewhere RUF said those old style mirrors were responsible for a loss of about 5mph at the top end. No 7th injector however my AFRs are on the limit for safe operation. It likes to be pulsed between 4500-5000rpm and deliver the clutch as the throttle goes down with full engagement by 5000rpm,still a work in progress though.Its amazing once you get it right a few times you seem to relax and get more confident it 'almost' gets easier... Roll on performance is shattering. I raced a V10 M5 from 40mph to 150mph and the old 930 stormed away. We checked the M5 board,a site for roll on performance cars and the M5 is ahead of a lot of exotica! These 930s are fantastic cars.
Old 08-27-2010, 08:06 AM
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Quote:
Originally Posted by tom84930 View Post
Drmatera
When you rev the engine up prior to releasing the clutch in a slow deliberate movement, how many rpms are you at? And do you have limited slip? Thanks.
With the K27 i help the rpm around 4800-5000rpm. The rpm's drop quickly as you release the clutch. My rpm's would dip down to 1700 once the clutch is all the way out then boost would come. But now with the new turbo I only need about 4000rpm as I release the clutch and due to the load i'm seeing 3-4psi even at 1700rpm and the car pulls out of it a whole lot better.

Note, if I rev it higher than 5000rpm the boost hits so fast it spins the clutch. And thats the fine line Andy is speaking of. If your clutch is up to it you'll go fast. Mine is suspect so i have to let it bog then go to ensure the clutch is fully engaged.

KEP is on my TO DO list
Old 08-27-2010, 08:16 AM
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Just got to ask:



That's a hell of a lot of negative camber on the rear - do all torsion-beam (non-coil-over) 930s look like that when they launch and the rear squats down?!

..Looks like we're just heating up the insides of our tyres, guys!

And, Andy, are those 225s on the rears? (Think you can go 245 without modification.)
Old 08-28-2010, 07:54 AM
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