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Re: My new project.........
Posted: Mon Oct 10, 2011 2:37 pm
by Mike
After the running in it's a check of valve clearances oil and fuel filters and then onto the power runs. The first one was to 7300
just to bed it down and check the injection pump at high rpm, then onto the real test for max power.
The point of the engine was to emulate the team cars in the 73 Targa Florio, running 3.0 litre's built with a 10.3 compression,
exactly as we have done. The quoted factory figures showed 315 hp at 8000 rpm, so anywhere near that was the aim.........
everything crossed this time.......
http://youtu.be/nBeEvv_PYL0?t=23s
You can see from the film it actually reads 320hp momentarily but the dyno averages it out to it's true calibrated figure of 317hp.

Re: My new project.........
Posted: Mon Oct 10, 2011 2:44 pm
by Lightweight_911
Very impressive Mike ! (& Neil)
What is the 'safe' upper rev limit on your engine ?
Re: My new project.........
Posted: Mon Oct 10, 2011 2:54 pm
by johnM
Wow fantstic stuff

Re: My new project.........
Posted: Mon Oct 10, 2011 2:55 pm
by Mike
Really thrilled with the results, a vindication of the all the hard work, time and money that's gone into the build and a testament
to Neil Bainbridge's engineering skill and experience, well that's what he said anyway!
Please with the torque figures as well, 224 ft lbs @ 284hp is slightly down on the factory but we always thought that might be
the case with the headers we've used, but there's still a little tweeking we can do.

Re: My new project.........
Posted: Mon Oct 10, 2011 3:03 pm
by Mike
Lightweight_911 wrote:What is the 'safe' upper rev limit on your engine ?
Hi Andy, 8200rpm is the red line, unless you're the man with the db meter of course!
As you can see from the graph though, the max power figure of 317.6hp is at 7950rpm
and then it tails off, so if we end up fitting rev limiters will set them at 8000rpm.
Re: My new project.........
Posted: Mon Oct 10, 2011 3:06 pm
by johnM
Mike wrote:Lightweight_911 wrote:What is the 'safe' upper rev limit on your engine ?
Hi Andy, 8200rpm is the red line, unless you're the man with the db meter of course!
As you can see from the graph though, the max power figure of 317.6hp is at 7950rpm
and then it tails off, so if we end up fitting rev limiters will set them at 8000rpm.
Should scoot along quite nicely

Re: My new project.........
Posted: Mon Oct 10, 2011 4:22 pm
by hot66
fantastic Mike
As you know, I'm a huge fan of Neil's Dyno

I wouldn't use any other method of running in & dyno'ing a fresh rebuild
Re: My new project.........
Posted: Mon Oct 10, 2011 4:55 pm
by 964RS
Great result!!

Re: My new project.........
Posted: Mon Oct 10, 2011 6:15 pm
by brembo
Well done Mike,makes all the hard work worthwhile.
Regards,
Re: My new project.........
Posted: Mon Oct 10, 2011 6:29 pm
by Mike
johnM wrote:Should scoot along quite nicely

hope so John, even at a very 'modest' 6200rpm it's producing 250hp so should be ok for a gentle cruise as well.........
thanks Jason/Dougie, us RSR guys need to stick together!
Re: My new project.........
Posted: Mon Oct 10, 2011 7:29 pm
by butzsi
left4dead wrote:Mike? Are you sure all that technology is period correct?
It's a different world, ain't it....

Masterful use of the "start U old git" spray almost in slow motion ! (edited and moderated by the new software much to my annoyance)
Well done to Mike and Neill .
Chris
Re: My new project.........
Posted: Mon Oct 10, 2011 7:59 pm
by Highfield
Fantastic, and cannot wait to see it in the flesh ........ great sound track to have in the car.
Ian
Re: My new project.........
Posted: Mon Oct 10, 2011 8:16 pm
by The Minotaur
Absolutely brilliant Mike, you must be very pleased. I wish I had been there for the dyno run but I've now watched it about 20 times on Youtube. Neil is a fabulous engineer and his dyno system something to behold, it looks like the command and control centre of the Starship Enterprise.
Dare I ask when the motor is going into the car?
Tim
Re: My new project.........
Posted: Tue Oct 11, 2011 8:35 am
by Mike
butzsi wrote: U old git
thanks Chris, less of the old if you don't mind!
Just think, move the decimal point 2 places and you have the same power/rpm ratio for the tractor......3hp @80rpm

Re: My new project.........
Posted: Tue Oct 11, 2011 8:48 am
by Lightweight_911