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Posted

Last night shee came alive! I drank a beer to that..

 

She went from stock with t5, vf2, kn and jetted to: Aggresive dune port, 4mil stroke/5mil long rod hot rods crank, wiseco 795's .20 over, still t5's, fireballs billet intake. Nice intake, i like the fact that the cross over tube built in, no more boost bottle with less chance of air leaks. vf2 still there, flipped the reeds around, running 30mm oko's. I know they are a little small for set up, but I bought them before i knew i was going to a 4mil setup. Still impressed by them for the price. need to get k&n pods, okied the old cut away air box to fit for the dyno run later today. Can't fit the old air box face in due to the thickness of the new manifold and 30mm carbs. +4 timing advance.

 

The Noss head is awesome. Compression kicked 190 both cylinders after cutting them for the 4mil. Started with 20cc domescut .130 out dome clearance, got .70 clearance between dome and piston, I know it is more than we wanted but it still had 190. Took domes out and recut again, this time up in the middle of dome to regain our squish angles, got 165 each cylinder now. The Noss head was easy to install, no leaks, very impressed, looks great too, thanks Dave!

 

We put 55 pilot and 165 mains in the carb, filled them up, and she fired right up. Forgot what its like to kick over a new motor. Nice and it was is close to being right on with the needle position and jetting, again the dyno run and plug chop will give full disclosure.

 

Put g-force axle with fireball billet hubs on the rear and new anti-vib steering stem on. With the +4 swinger and +2 +1 front arms (fireball aswell) with elka dune editions, hopefully its set for the dunes.

 

Done 2 heat cycles last night, will do 2 more this morning, then put her on the dyno. Real test will be pismo this coming weekend.

 

Just had to right all this out, feels great to have it done and running after all the time, lack of sleep and money spent. Just need to find k&n pods to finish her off. Did everything else right, don't like half assing the filter, its just to get it past heat cycles and dyno run. Anyone know the part number for k&n pods to fit 28mm pwk's or knock off equivalents? Kids behind the counters around hear at the local shops are great at figuring it out stuff if its not in the factory books. :thanks:

Posted

Sounds like you have everything goin' good with your ride. You can get in touch with Jeff at FAST and I'm sure he can get you the pods, thats where I got mine..............

 

I'm startin' to put my shee back together now and the 421 should run rather nicely, but I am still waiting for a few parts............

Posted

Ran it yesterday to break in a little before dyno. Man I like the new power. We ran it on a DynoJet dyno. At the rear wheels in 4th gear it made 58.4 horse power on 91 octane pump gas. Had to raise the needle to top setting, other than it was dead on for break in. After I get back from pismo going to drop from 165 jet to 162, should be perfect. Wanted to run a little rich on top for the break in weekend. IS the sniffer on the dyno a good way to check the jetting?

Posted

I'd probably add a little octane. 165 psi and +4 timing is pushing it with 91 octane. The extra squish clearance might help but I'd still add at least 20% race gas to be sure. Just my opinion....Could make it less expensive in the long run.

 

-David

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