How Much Rwkw For What 1/4 Mile Time.

[Birds]

you believe rego papers?

Mine was nothing near what the sticker had, fked if i know where those numbers come from to be honest because they certainly are not putting the cars onto the scales!

Rego is ridiculous, I swear they estimate that shit. They still think my 1994 Soarer is a 1992 Supra.

[PJ.]

Going off my current specs the Richmond calcultor is on the money ET wise. It says I should be running 10.0 with 503rwhp. I have run 10.4 with a an average 60ft of 1.7 (radials) so a 1.5 should net me that flat 10. My trap speed was more at 136.52 over the 133 that it said.

However, when I was on a 98RON tune rather than E85 pump fuel making 391hp my car trapped 131mph and 134mph (11.0 and 11.2)

There were other factor such as a 1.87 60ft on both passes, smaller 225 tyres. The Moroso says 10.7 @ 121mph.

Torque is something so often overlooked when it comes to dynos, an example is the above 391hp pump tune compared to 520hp I had with a less active motor with a big turbo and lots of boost.

391hp = 134mph GT3037S, big cams, ported head 19psi BP 98

520hp = 137mph T88, small cams and not much else 29psi Race tune

Same dyno, different engines only different was tyres and of course lots more torque in the engine making less peak hp and way more mid range.

[R.I.P.S NZ]

I've found the Morosso calculator pretty accurate with most cars.

With the higher power ones, its almost impossible to get acurate dyno readings with rolling roads or hub dynos with auto's and big converters but based on weight and mph it seems like a pretty good guide.

Mph is where its at as far as whp goes IMO, its possible to get real good ETs with a good chassis etc but the mph V weight still gives a good indication of whp.

I saw a car run 7.3 off a 1.0 60ft with less mph than my 240z running 7.8 but I bet if we worked it out off his weight his mph would accuratly reflect whp.

Rob

[rev210]

The moroso calc. works ok.... for calculations.

Until you drive the time in real life you got nuthin. If the moroso says 10 flat and you run 10.999 then 10.999 is what your car runs till you better it in the real world.

Talk is cheap take it to the track.

[PJ.]

The moroso calc. works ok.... for calculations.

Until you drive the time in real life you got nuthin. If the moroso says 10 flat and you run 10.999 then 10.999 is what your car runs till you better it in the real world.

Talk is cheap take it to the track.

While I agree with part of what you are saying, the Moroso calculator is on the money. Gee the V8 boys would cringe if you dare said something about their bible haha.

WHEN I nail a 1.5 60ft my car WILL run 10 flat but unfortunately no cage = one run wonders at the track and no chance to improve.

I wasn't taking what you wrote personally by the way, I was just using myself as an example

PJ

[rev210]

While I agree with part of what you are saying, the Moroso calculator is on the money. Gee the V8 boys would cringe if you dare said something about their bible haha.

WHEN I nail a 1.5 60ft my car WILL run 10 flat but unfortunately no cage = one run wonders at the track and no chance to improve.

I wasn't taking what you wrote personally by the way, I was just using myself as an example

PJ

I like the glass half full approach too. Keeps you trying.

You may get the 1.5 60ft but, the car may also break every time you nail it. Thats the tragic facts of racing. I know of many who never got to thier goal times even though power and the moroso calculator were on thier side.

The calculator also assumes that you are making that horse power at the track on the day and the time you race and people base this on some dyno they my have had 6 months ago. The dyno is again, another one of thos bits of paper with limited value in racing.

So once again, until it's done a 10 flat it's not done 10 seconds flat.

[DCIEVE]

Torque is something so often overlooked when it comes to dynos, an example is the above 391hp pump tune compared to 520hp I had with a less active motor with a big turbo and lots of boost.

391hp = 134mph GT3037S, big cams, ported head 19psi BP 98

520hp = 137mph T88, small cams and not much else 29psi Race tune

Same dyno, different engines only different was tyres and of course lots more torque in the engine making less peak hp and way more mid range.

The difference is simply average power. If you were able to gear the car for the peaky powerband you would see a big change in ts.

[PJ.]

I like the glass half full approach too. Keeps you trying.

You may get the 1.5 60ft but, the car may also break every time you nail it. Thats the tragic facts of racing. I know of many who never got to thier goal times even though power and the moroso calculator were on thier side.

The calculator also assumes that you are making that horse power at the track on the day and the time you race and people base this on some dyno they my have had 6 months ago. The dyno is again, another one of thos bits of paper with limited value in racing.

So once again, until it's done a 10 flat it's not done 10 seconds flat.

Anything can and happen, I know this. But the Moroso calculator isn't based on you nailing a 1.5 60ft time and blowing a diff, or missing a gear, or engines that have lost comp since they were dyno'd in 1980.

Anyway, I think we've stated the obvious enough already.

Peace.

[FULOCK]

13.8 @102mph - 165rwkw in aussie R31 Turbo street tyres

[Nismo_God]

13.0 with a touch over 200rwkw in 33 gtst....street tread tho...