Jump to content
SAU Community

Recommended Posts

here is the 7.84 run....

cheers, mark

Congrats mark, great run.

I also hope you give HT a hurry up, would be great to see you both chip away at sub 7.50s.

One question if you don't mind as its been discussed on another forum and I'd be interested to see what you have to say on the matter.

Have you found that you regularly get higher MPH when your 60ft times have been slower than ideal ,or if you've had a bit of a bogged or wheelspin launch, do you find that on a good 60ft run your ET AND MPH are better?

Its been put forward that its very common to run higher than normal MPH when the 60ft has been slow and that when your 60ft and ET are real good, your MPH will be lower.

I'd be very interested to hear if you have found anything "funny" going on in this department.

Anyone else who has had experience with this feel free to comment.

Regards Rob

Edited by R.I.P.S NZ
Congrats mark, great run.

I also hope you give HT a hurry up, would be great to see you both chip away at sub 7.50s.

One question if you don't mind as its been discussed on another forum and I'd be interested to see what you have to say on the matter.

Have you found that you regularly get higher MPH when your 60ft times have been slower than ideal ,or if you've had a bit of a bogged or wheelspin launch, do you find that on a good 60ft run your ET AND MPH are better?

Its been put forward that its very common to run higher than normal MPH when the 60ft has been slow and that when your 60ft and ET are real good, your MPH will be lower.

I'd be very interested to hear if you have found anything "funny" going on in this department.

Anyone else who has had experience with this feel free to comment.

Regards Rob

I have found this same phenomenon...you would think it goes the other way...but it doesn't.

2rismo?

Edited by DiRTgarage

The more time you spend covering the race distance, the more time the car has to accelerate. I've always sixtied harder on lower terminal speed passes.

Look at it another way, it's very rare the your PB ET will be on the same pass as your PB TS for a given state of tune (engine, driveline, etc).

The more time you spend covering the race distance, the more time the car has to accelerate. I've always sixtied harder on lower terminal speed passes.

Look at it another way, it's very rare the your PB ET will be on the same pass as your PB TS for a given state of tune (engine, driveline, etc).

Very strange how quicker cars usually run higher mph though?

I've set PB time and mph on the same run a few times but tbh they are usually both a result of a slower 60ft. I'm wondering if the slower 60ft runs are more settled and your able to get power down smoother than maybe a leap off the line that possibly upsets the car?

Rob

The phenomina of higher mph with slower et can usually be explained by wheelspin.

Car A frys them till say the 100ft mark before traction phases in will be doing more mph at that point than car b that hooked up and bolted.

Car A Takes longer to get to the 100 ft mark because of the wheel spin, hence the slower et but has already put mph in the bank by virtue of the wheelspin. the extra speed is then carried through the traps for a slower e.t. but a higher mph.

Who's on first. :/

Edited by FineLine
The phenomina of higher mph with slower et can usually be explained by wheelspin.

Car A frys them till say the 100ft mark before traction phases in will be doing more mph at that point than car b that hooked up and bolted.

Car A Takes longer to get to the 100 ft mark because of the wheel spin, hence the slower et but has already put mph in the bank by virtue of the wheelspin. the extra speed is then carried through the traps for a slower e.t. but a higher mph.

Who's on first. :)

I thought that was what I said?

What's on first!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Thanks guys,  Yeah I should at least have them dynoed, at least then I know what I've got as a starting point.  The springs on these are hard as rocks. I vaguely remember Russman saying he was going to sell the shocks to me with the rocks fitted, as he was keeping the softer springs for his new setup.  I didn't click at the time but of course that was to let me know the shock/spring wouldn't be matched.  I also remember pricing up new springs around 2014-15, but, house, money etc. it never happened. So that was another reason to have them rebuilt. I have rebuilt the forks on many motorcycles so I think I could handle the seals on these easily enough, but getting the valving right would be a rabbit hole I cbf exploring.  Duncan, interesting to hear RP was tuning these back then. I might give them a call.  In the mean time I have been busy fitting sway bars. The Whiteline rear sway bar I purchased 15 years ago finally got fitted, along with the Whiteline front bar that showed up last week. Just waiting on new links for the front sway bar to finish that off.  And my spare set of advan AVS VS5's should be back from the powder coaters in a Pearl White finish sometime this week, with a set of Hankook RS4's lined up for fitting.  And then I just have all the suspension bushes to do. A comprehensive kit is on the way... Lots to do before the Ararat hill climb. Cheers guys 🍻   
    • Nice car! I’m glad folks in the US have gotten past the FnF and are buying real cool cars like the 260RS I was with a bunch of mates in Portland about a year ago and spotted a green Stagea (just a regular 2.5T AWD) parked about 2 blocks away and they were like “a what?” So I made a bet with them for a round of beers and said “ok one of you run down there and tell me if the steering wheel is on the correct side” 5 mins later the American comes trudging back up the hill and goes “he’s right guys. Ok what beer do you want?”
    • Should replace OR drop the tank, give it's good clean. Might be worth replacing that entire fuel level/pump/cradle thing with this: https://frenchysperformancegarage.com/products/fpg-s13-180sx-r32gtst-single-pump-hanger-kit-billet-hat-6-v3-fpg-089?gQT=2  
    • Thank you so much for the help
    • Yes it is ATF. I quote @Duncan "it takes a good synthentic auto trans fluid like Castrol Transmax Z" It's not a diff. It's a transfer case. Totally different thing. Yes, fluid will come out the sender hole. No you do not really need to drain it. Just pull the old, quickly poke the new, clean up and top up. But realistically, you should probably take the opportunity to change it anyway.
×
×
  • Create New...