Search found 538 matches

by Duk
Sun Jan 17, 2016 2:45 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

Jim K wrote: OR, as Maurizio says... buy an M3! :lol: 8)
Maurizio wrote: :roll: :mrgreen:
NOPE!!! :P
by Duk
Sat Jan 16, 2016 8:41 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

Rod length is 131.1mm and stroke for the 3.2liter is 78mm (72.6mm for the 3liter). Couple of years ago, we contemplated exactly what you are proposing. Rod journals are 52mm so we could offset-grind them down to 50mm thus gaining a significant 2mm stroke increase. We would of course need new rods (...
by Duk
Fri Jan 15, 2016 7:53 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

Jim can you tell us the rod length to stroke ratio?
And do you reckon it would be feasable to have an even longer stroke (custom made obviously) crank in the block? Maybe with smaller diameter big ends to find the needed room.
by Duk
Wed Dec 30, 2015 7:00 pm
Forum: MegaSquirt Fuel Injection
Topic: Speeduino. Aussie Designed DIY Programmable ECU
Replies: 0
Views: 5040

Speeduino. Aussie Designed DIY Programmable ECU

Given that it's too quiet around here and that this is in the true spirit of the Magasquirt philosophy, I thought getting some exposure for an Australian started DIY programmable ECU might be good for a look: http://speeduino.com/wiki/index.php/Speeduino And the forum http://speeduino.com/forum/inde...
by Duk
Sat Nov 28, 2015 4:11 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

"Iron plate"???
Shoulda made it from steel. :wink:
by Duk
Fri Nov 27, 2015 2:00 pm
Forum: Performance
Topic: Electric Supercharger
Replies: 3
Views: 2648

Re: Electric Supercharger

So the run time limiting factor will be available electrical energy in the battery? The question is, for a track car anyways, can the system recharge sufficiently thru the slower off boost parts of the track? Can a typical alternator handle it? I like the idea, I reckon it has merrit. But perhaps al...
by Duk
Mon Sep 28, 2015 10:07 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

Nice, are you gonna test both? As a daily, your most likely gonna do the long runners right? My bet is the shorties for peak power. Prolly not practicle to have a dual length runner manifold on a V6 (especially 1 shoe-horned into an Alfa engine bay), but how about a dual resonance manifold like the...
by Duk
Tue Jul 28, 2015 1:08 am
Forum: Race Cars and Track preparation
Topic: The Orange Cab -MD's New Racer
Replies: 253
Views: 65716

Re: The Orange Cab -MD's New Racer

Oh yeah, I should have asked before....................

Do you notice any changes in the car's balance now that you've added the supercharger and the intercooler?
by Duk
Tue Jul 28, 2015 12:12 am
Forum: Race Cars and Track preparation
Topic: The Orange Cab -MD's New Racer
Replies: 253
Views: 65716

Re: The Orange Cab -MD's New Racer

That's a sweet set up MD! :D :D :D

And the Cab looks even better with the white wheels.

But we all know that's a nice new Sprintex twin screw hiding under there. :wink:
by Duk
Sat Jul 11, 2015 6:06 pm
Forum: Gearbox, Clutch and Driveshaft
Topic: driveshaft conversion
Replies: 378
Views: 89385

Re: driveshaft conversion

After a bit more Goggling it's pretty obvious that an RTV silicone is completely unsuitable. It kinda, sorta doesn't stick to much other than itself............... :oops: The way I was thinking about it, each coupling would have 2 interlacing steel structures that provide the majority of the strengt...
by Duk
Fri Jul 10, 2015 8:19 pm
Forum: Gearbox, Clutch and Driveshaft
Topic: driveshaft conversion
Replies: 378
Views: 89385

Re: driveshaft conversion

Silly question time........................ :wall: While I love Kevin's approach to the tailshaft saga, what is stopping someone from making their own rubber couplings of a more durable design and perhaps with some internal Kevlar reinforcement? The big problem that I see is the actual rubber itself...
by Duk
Sun Jun 21, 2015 11:34 pm
Forum: Race Cars and Track preparation
Topic: Turbo Alfetta Race Car
Replies: 7
Views: 4107

Re: Turbo Alfetta Race Car

There's nome nice work there! A couple of curiosities tho. Like the fact that 105 uprights are used, with 'upside down' lover ball joints (spherical rod ends), but no apparent bump steer correction. Also, the steering arms are standard (LONG) length.............. I'm surprised that they didn't duct ...
by Duk
Tue May 19, 2015 11:16 pm
Forum: Performance
Topic: Jim K. 3.2 engine
Replies: 344
Views: 76715

Re: Jim K. 3.2 engine

I've used Neway seat cutters on my 12 heads. They work very well, but frieght costs to Aus were a killa. Hopefully cheaper to other non-US parts of the world.
by Duk
Sun May 10, 2015 10:08 pm
Forum: Other
Topic: Random Engine Torque Measuring Ideas............
Replies: 24
Views: 7047

Re: Random Engine Torque Measuring Ideas............

But crazy off topic banter is what this forum is about.
That and Alfa.
by Duk
Sat May 09, 2015 6:20 pm
Forum: Other
Topic: Random Engine Torque Measuring Ideas............
Replies: 24
Views: 7047

Re: Random Engine Torque Measuring Ideas............

Z, there are specific velocity probes so no problem. The question is what combination of velocity/flow you want! If you increase flow with porting it does not necessarily mean you also increase velocity. It may remain unchanged or even drop if you hog out the ports. To arrive at conclusive results ...