What the heck is a 2/3rds car ??
It was possibly the best weekend for a few years. Even with downtime due to breakages the queue didnt get longer than 25 mins. Except when Rich wanted a go
Me and my Son are really pleased with how the weekend went. But boy am I knacked out.
6am Saturday until 2am Sunday. And then back up at 8.30am sunday to do it all over again.
We had the blower running at about 66% boost, so 10 psi. I have a concern about running the blower maxxed out as i'm being a wimp and dont like to push things like this that I havent got much experience on to the max. The old engine runs 13 dead on the carb only. 11.7 with 7 psi of boost. 11.4 with 10psi. 10.7 with 10psi + a 50 shot of won and 10.4's with 10 psi and a 100 shot. My intention has always been to run the blower like this and use a bit of gas to get things moving quickly off the line.
This is when we saw an other problem develop. With the 50 shot on top of the 10psi the front left wheel was way up in the air on launch. So we tightened up the rear snubbers a bit more by packing them with penny washers to get them up against the springs with no free play. The rear springs still bounce as the rubbers are fairly soft. That got a better launch with the wheels on the ground.
Then we put the 100 shot on and this is when we found that the new Moser shafts I had made are pretty darn strong
The last two luanches of the day saw the left front about 4" off the deck and the drivers side front about 1" off the deck. Air under both tyres and still pulling 10.4 ??
When the DP system is finished I reckon its going to make the car fly off the line even better. So new springs and snubber rubbers are on order.
My mate shut the photo shack down as soon as racing finished but he did tell me that he has a nice slo mo of one of the launches which shows air under the tyres. But he cant
remember if it was me or Jason Driving. So we are now back to the father / son competition. Last year I was 100th of a second quicker. This year I'm down to 1000th of a second quicker.
AND!!
All the runs on Sunday which were 10.8, 10.7, 10.4, 10.7, 10.4 and a 10.8 all had 60 foot times of 1.4 seconds
Now its time to turn the gas back off and try the 1 bar pulley to see what happens. But I'm still not sure if i want the blower running flat out as it wasnt cheap so I want it to last.
I hope the combo of boost + gas assist is going to be a good economical combo for the future.
All in all a cracking weekends testing and a very busy social meet up to. Lots of folk helping out other racers with tune ups and repairs and exchange of tactics and tyre choice etc.
And there must have been at least a dozen won users on site all doing good numbers.
I'm still a bit confused about what to buy for the new high pressure fuel system. I have a new tank and 044 pump. I have the 1/2" bore high pressure hoses all installed along with a smaller hp hose for the regulated return. I need to order a bunch of Y connectors and 8 fuel jet holders + more jets to suit. Need to plan that carefully as space is an issue and I only want to do it once.
My main concern is the fuel rail. Should I buy or make a metal rail with a large bore of say 20-25mm so it acts like a buffer vessel. Should I just use the 1/2" bore hose and use tee's for the take offs?
I'm thinking that the fuel tappings should come from the bottom of the rail so air purges automatically from the reg back to the tank. ie have the rail above the fuel pulsoids so everything goes downhill from rail to engine?
I guess a metal rail will stay in place and wont droop lke the rubber hose could.
What will be the most reliable regulator to use ?
I'm back at the Pod this Thursday and Friday for a DVD filming event that Universal films studios are funding. Not exactly sure whats going to happen but I have had to fit a passenger seat and harness to take reporters out for test runs. I think its some sort of modified car film they are making. The event is called "The fast 5 event" so it must be something to do with the new film thats just been released.
Whatever it is, its two days free racing on a closed track / film set
Thanks for the interest guys. I'm hoping that now we have gone sub 10.5 the 10.1 or flat 10 will be with us sooner rather than later. And the 9.99 could follow. But as usual it will probably take a year to get there. I'm happy with what we have achieved so far
Perry
, the short short version is new pb's (10.4's) and looking really really good with no problems at all over the 2 days prior to me leaving the show on Sunday. I'm sure Perry will be writing an essay shortly about his weekend of smiles 
