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DYNO DAY JUNE 26th

wiplash1

By wiplash1,
in South Australia

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MS-75 Enthusiast

MS-75

Posted
Posted

Hi guys-I had the crown at Jazmac on saturday-Sean is my name. I'd have to agree that there seemed to be a lack of powerful cars there. Perfect weather for it though. I was certainly feeling my age there too......

Where were all the skylines/supras/turbo rotors? Mind you I did enjoy the R32's as always-one on the best looking cars to have ever come out of japan methinks. It was the first time I've had a car in such a day and it was most enjoyable.

As for the crown, yep, it pulled 257. It's only a baby in terms of finetuning, as I've only had it on the rollers once before in current trim. The main problem it suffers on the rollers is masses of wheelspin. When it was dynoed a month ago it made 281 rwkw (shootout mode at blackwood dyno tune) on 13.5 psi and premium-although we needed to strap it down ultra hard and had 2 big guys in the boot for ballast-and even then it was breaking as the boost was coming on (at one point we filled the dyno with so much tyre smoke we had to leave and let it clear for 5 mins). It's not that the car is a mega HP animal, it's that the boost hits really quick and it generates masses of torque instantly-overwhelming the tyres (2500 stall converter doesn't help either). For saturday I put 1.5 degrees extra timing the hope of cracking 300, but without ballast and serious strapping it was a lost cause. Looking at the roadspeed on the printout, that 257rwkw peak was somewhere around 3900 rpm before it let go, and it doesn't make peak until 4800rpm. Next time I'll bring a couple hundred kilos worth of sand bags for ballast. As it was driven off the rollers you could see how hot the tyres were as they had gone all shiny-they even picked up a full coating of the fine gravel out the front of the workshop (took 200m of driving before it all came off). The problem was that at a day like saturday there isn't time to strap every car down and you can't have 3 dudes in the back for ballast!

I had to leave early, but was told that someone in an R33 knocked me off the 6cyl spot late in the day by 6-10 kw (bloody datsuns =-)? I'll bring ballast next time!

The Falcon put on a lovely display of quiet, reliable yet monstrous power. Martin-is that a CAPA promo vehicle or is it yours? That VK ended up getting defected in MtBarker too. I took the long way back to the freeway just in case..........

A well carried out day by Jazmac I thought. (A whiteboard for results and a PA system would top it off-but certainly no complaints here)

Martin-my email is [email protected] and that's probably an easier way to catch me.

Cheers guys

Sean

Martin Donnon Mentor

Martin Donnon

Posted
Posted

Thanks mate. Its CAPAs car, Ive just been doing some tuning stuff on it. The poor thing as 3000km on the clock, all of which have been generated going to and from V8 Supercar rounds as a dedicated burnout car. It was born at the start of March, went to Clipsal, Puke in NZ, missed Darwin, and is now on the way to QLD for the 400 (?) on this weekend. All stock save for the blower and a clutch. Been through masses of rear tyres, and is very liberally coated in rubber. Not bad for an inferior quality, poorly built, badly engineered pile of poop eh? With 120rwkw it would probably last 25 years. Food for thought.

MS-75 Enthusiast

MS-75

Posted
Posted

Wiplash, am I correct in assuming you were the fellow I would have grabbed my entry from and handed cash to? Given the fact you would have known a few dudes there, do you know of anyone who got any video footage of my crown on the rollers? I'm dead keen for it.

It was a well organised day mate-cheers.

Sean

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