[wa] Motorplex Lane Booking

[lil_bodes]

cant get the pics from the plex. I know the bloke took pics of both our cars but cant find them...

He looks comfy enuff in the ute Adrian

[XF Falcon]

Yeah the guy took heaps of pics of all our cars almost. The drag photos are usually on www.highoctanephotos.com or www.circlework.com.au

and neither site has photos from that night up yet :(

[tinyplums]

well, still no luck with getting a 12.

thought I was a shoe in this time, 1st run of 13.06 at 7pm which was still 28 degrees, temps dropped a bit but my times didnt I only went backwards from there.

[Xtreme F6]

well, still no luck with getting a 12.

thought I was a shoe in this time, 1st run of 13.06 at 7pm which was still 28 degrees, temps dropped a bit but my times didnt I only went backwards from there.

13.06 is still a very good time for a car that's rolled of the production floor bud. that's got to suprise alot of people to know that this car will run those times without being touched.

[XtRmn8]

well, still no luck with getting a 12.

thought I was a shoe in this time, 1st run of 13.06 at 7pm which was still 28 degrees, temps dropped a bit but my times didnt I only went backwards from there.

Saw your car last night. First while FG Tornado that I have seen. Looks sensational!!

I think I got a couple of pics too.

[Guest]

Its not really something that can be guessed upon. The way a car gets traction or how its peddled will affect MPH by such a large amount theres to many variables to take into account. At the low end of the power scales lets look at a couple just for kicks shall we. Renae Watson run 12.6 @ 111 MPH with 252 rwkw's, dead stock car tune only BF Auto. That car over a night of runs would run as much as 113 mph, as little as 110.

The higher scales

Brendans car is also a good example, on the night of running his 11.8 @120 mph he also did an 11.9 @115 mph, so you have 1 tenth difference in ET but 5 MPH difference. To also note on that his 11.8 on dunlops was with a 2.007 60 ft, I think Brendans car would be capable of running a possible 11.65 to 11.75 with no changes just a harder launch. Phil Watsons 11.1 @ 125 over 2 years ago. Well before we had launch changes on the 6 speed for stalling it up and with only 370 rwkw's. His car was running 1.8 to 1.9's and ran 11.2's and 11.3's@ as much as 128 mph.

I think Mike now having a couple of runs under his belt and he grabs my ET's as his confidence grows and he gets the hang of it his car he will run 11.6's or pretty damn close to it. Whilst MPH is generally a good indication of power its not always going to tell the truth at the end of the track because of the above mentioned variables. The most common one is ppl rolling off the throttle thinking they have finished the run when they actually havent.

Darren boland had 420 rwkw's and did 10.50's at 130 mph with 1.6 60 fts.

Like I said, large variations in MPH on all these cars changed purily by small changes in the way a car was driven, How it was stalled up, how much wheel spin it got, how fast it 60 fts, what RPM you change gears at. Just to name a few.

In terms of a true street car versus a drag car you can work out power off the mph as a drag car will usually run consistant mph and et allowing power calculations and ET estimates to be made. These cars are far from drag cars

Thanks

Simon

So all this talk of "get your car to the track for a real power indicator... Dyno's are just tuning tools... Blah blah blah" that we have on this forum is rubbish in your opinion then?? Even if there is a larger variance like you described, you can take a fairly educated estimate of an average/expected mph then work with that.

My car ran as high as 127mph & as low as 125mph on the night I ran my 11.2 but they are fairly close. I tried a few different shifting points, played with tyre pressures & had a bad 3rd - 4th flare issue so that explains the variance.

If a car runs 116mph (or thereabouts) all night, then it isn't going to go much quicker next time out with everything left the same. You mentioned that mph could be down due to backing off the throttle early, but to have consistant mph all night you'd have to be backing off at exactly the same point every run

I hope for Mike's sake it does do a low to mid 11 but the mph just doesn't seem to be there atm. Good luck Mikey

[Inducted_Breeze]

well, still no luck with getting a 12.

thought I was a shoe in this time, 1st run of 13.06 at 7pm which was still 28 degrees, temps dropped a bit but my times didnt I only went backwards from there.

that's still a brilliant time for a stock car mate. Give it a few months when the freezing cold nights come back and you will get into there no worries!

I found these temps were worth a few tenths easy!

Edited 05/01/09 04:20 AM by Inducted_Breeze

[Guest]

You're so close even with the hot weather we're having now Ross so you'll go 12.xx soon enough

[Xtreme F6]

So all this talk of "get your car to the track for a real power indicator... Dyno's are just tuning tools... Blah blah blah" that we have on this forum is rubbish in your opinion then??

Im not to sure but if my eyes dont decieve me I dont think youlle see anywhere in my post me stating that taking a car to the track is blah blah blah I used to live by this fact when I was draging my old 9 second ute............. I think if you bothered to read what I actually said was that trying to make a call like you did in your previous post is a big call with all the variables that we are faced with with street cars not drag cars..

My quote of Its not really something that can be guessed upon is something that I stand by. I havent just started taking cars to the drags in the last couple of months or years for that matter mate. My statements wernt uneducated or me just running my mouth off. They are issues that I myself have encountered and come across over the years of racing at the drags and helping on drag cars from super street to Top doorslammer.

The things I stated wernt intended on annoying you or anyone, Just some helpful advice and encouragment for XF Falcon.

Yes Dynos are a tuning tool and power figures seen on them can be different to what you may see at the track, That doesnt mean that the power figure on the dyno was incorrect, There are way to many variables encountered in a true street car like what most of us have to give a true accurate end figure. I gave examples of cars with variable MPH to prove this. The fact that Brendans car ran 121 mph with 326 rwkw's and Mikes ran 116 MPH with 330 rwkw's again proves what im trying to get at. From your experience can you explain why you think mikes car MPH was lower then that of Brendans by some 5 MPH?. You mentioned your cars consistant MPH that you had, Since youve brought your car into it lets use it as an example as a comparison to Phils BF F6. Phils car ran 11.19 @125 (to 127) with 370 rwkw's. If you do a search for speed calculators on the net ect you will find some good ones around, I found 1 here that's not to bad.

http://www.dragtimes.com/horsepower-et-tra...epower+Estimate

Run Phils through there and its within about 10 KW to what it made on the dyno

Darrens is within about 20 kw.(Again a little hard to to get real accurate as stall converters change torque and power to what you will see at the wheels from different converter speeds.

Yet use the same calculator on Mikes car and its out by over 50 kw. (what variables?)

Use it for Phils wifes XR6T and its within 10 kw. (roughly) its a little hard to know what every's weight is but you can get it pretty close to prove the point of variables.

With all these cars showing inconsistant times and mph figures for there power out puts its got to make you wonder how anyone can claim it as gospel what the end result is. get a car like my old ute that ran within 2 mph and did consistant 1.31 60 fts one afetr the other then you can start to get an idea of power with the weight of the car as wheel spin wasnt really an issue, I wasnt peddling the car, it drove pretty straight and the variables are a hell of alot less.

Your car ran 125 to 128 mph, Just as a comparison, How much power is your car making for the current MPH and times you have done?

Thanks

Simon

Edited 05/01/09 02:09 PM by Xtreme F6

[Guest]

Simon,

I did read your post properly & if you read mine closely you'd realise I never said anything about you saying 'blah blah blah" in your post, I was referring to all the talk on here from members including myself relating to mph v power output.

So all this talk of "get your car to the track for a real power indicator... Dyno's are just tuning tools... Blah blah blah" that we have on this forum is rubbish in your opinion then??

I know you have lots of experience with drag cars hence the surprise when you said mph can't be accurately related with power output. Even with the few mph variance we see with most street cars, the power can be pretty much estimated within a few rwkw so long as the car is driven over the line with the loud pedal down & shifts are relatively close between runs.

There is no doubt in my mind that Mike's car made 330rwkw & Brendan's 326rwkw on your dyno but those figures were taken on 2 different days & the cars could of possibly been strapped differently due to the time difference, don't you agree?? That's why mph is a better indicator, it's going to be loads more consistant so long as your foot's flat to the floor...

The only things I can think of that would affect mph substantially are wheelspin & shifting points. Obviously if you shift too early/late your mph will suffer but again, only by a few mph. Wheelspin (due to street tyres over slicks) in my experience actually increases mph. I wouldn't think it would be the wheelspin itself, but more so the fact that you are running with hard tyres opposed to flat slicks & are able to pick up more speed after half track. I seen this numerous times with Aaron's car, he would always run better mph with street tyres but slower et's.

I'm not sure on my power figure on a Dyno Dynamics as it was tuned using a Dyna Pack. Judging by mph, I'd guess somewhere between 370 & 380rwkw on your dyno. I guess I'll find out soon enough as it will be on the rollers at MV.

In no way am I having a go at anyone in my posts, I was just voicing my opinion that I didn't see how there would be a mid - high 11 in a car that ran 116mph just by bolting on slicks. I'm happy to be proven wrong as I'm just a novice when it comes to drag racing. I occasionally run my street car down there & have never taken a race prepped car down the strip.

Cheers