entropy
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posted May 11, 2002 01:56 PM
Muzzy stroker equation...
1361 + nutec - heat/humidity - 230# fatass = 155.4mph
Woo-hoo!! new personal best!!!!  Victory dinner consisted of 4 Buds and a box of Popeye's spicy chicken (dark meat).
With my current 17/51 gearing I was in the limiter for the last 100' or so. Looks like its time to dust off the 50t. I figure the Nutec added 2-3mph.
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MadMike
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posted May 11, 2002 04:52 PM
Congrats!!! Big Dog!!! we got rained out up here!!!
keep it up!! Man I want some of that Popeye's chicken!!! Im so jeleous.. I guess I will just have to drink the beers!!
Mad Mike..
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RAC4IT
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Bergie
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posted May 11, 2002 05:26 PM
Can you post your 60'/330/660/1000/1320 and traps, also what wheelbase were you using? Are you happy with the 17/51 gearing? I'm still using 16/44 on the stock arm and running in 4th...mph 150ish. Guess I need to re-gear to use 5th?
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entropy
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posted May 11, 2002 05:47 PM
 Edited By: entropy on 12 May 2002 03:07
Bergie,
60' - 1.571
330' - 3.999
1/8 - 6.008
1/8 - 121.98mph
1000' - 7.752
1/4 - 9.238
1/4 - 155.42
It was a so-so 60' and hitting the limiter for 100' or so surely added some time to the ET.
I REALLY like the 17/51 and doing 5 gear 1/4, but am starting to think I'll never be able to keep the f wheel down in the top of 1st. All the good passes I made last night were shortshifting 1-2. I'm going to put the 17/50 combo back on soon just to avoid the limiter in 5th ( a problem I am happy to have now & then)
MM,
For damn sure Shreveport has Popeye's! TFA-ers gotta keep up their strength!
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krexken
Zone Head
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posted May 11, 2002 08:33 PM
Nice mph in this heat and humidity of late. Did you make any changes to the PC3 for the Nutec? Whay say you bout those new stacks? May have to cut my trip a little short to make it to Red River Sunday.
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entropy
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posted May 12, 2002 02:01 AM
Ken,
For the Nutec, I added fuel from 8000 to 13000, just guessed at it.
I don't know if the stacks contributed or not. They have been in for a while, but I hadn't added fuel especially for them.
Yeah! come to RR next Sun!
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ZRXDean
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posted May 12, 2002 08:19 AM
Nice job sir, but 1.57 is so-so?!? It's hard not be envious of that kind of power & torque... guessing you & the bike weigh 740lbs, you're putting out 215hp on the stinky stuff. That's unreal.
I tried the intake Webcam last night, didn't help. It dropped my cranking compression from 245 to 215, and I can't spin fast enough to get any extra power out of it. Although we had a steady headwind, and everyone was down 5mph, I could barely break 140 and it felt weak. my left hand tried to make up for it and I redlighted all night long 
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BA
Pro
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posted May 12, 2002 11:01 AM
Damn Dean, that sucks man. No gain? Would be nice if you could get your $$ back. 
Entropy, your MPH gain from the 1/8th to the 1/4 is really impressive! Better than some bored out 'Busa's in my area, and they have the 'stinky stuff' too.
It's a shame I'm not closer to any of you guys, I'd like to see some 12R's run. I'm the only one here.........
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entropy
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posted May 12, 2002 02:00 PM
ZRX,
I am barely able to maintain 751 lbs, and that's by taking off parts of the bike to offset my intake of Popeye's and Bud... I don't have many non-essential parts left; maybe one of the front claipers//disks, but that's about it.
On the intake cam lack of success you had. This worries me a bit, as I have a set of cams from Lee's which he had ground at Web. I'm having the cams put in after the IDBA at RRR on the 19th, but like I said, your experience has me concerned. What cam timing did you use. Lee's advised 106-108 on intake and 108-112 on exhaust. Any comments?
BA,
Stinky stuff??? I'm starting to LIKE the smell of Nutec
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ZRXDean
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posted May 12, 2002 03:42 PM
Edited By: ZRXDean on 12 May 2002 16:42
I wouldn't worry - I imagine the 12 motor will react differently to cams than mine. The 12 head flows so much better, is injected, spins faster, etc. OTOH, I think I have heard somone mention that the stock 12 cams are about optimal, so maybe there isn't much left to take advantage of. Does your stroker make is best power at a lower rpm than at stock stroke? Did you pump your compression up? As I've caught on lately, you need compression and rpm to make a big cam work well.
Here's my motor with ZX11 cams and Muzzy X3 cams, The X3s are .410/265 duration. Ran like doo doo :|
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krexken
Zone Head
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posted May 12, 2002 07:57 PM
That's weird, Dean. You'd think your motor with it's extra flow potential and extra cc's could really use more cam. It'd be nice if a a grinder could come up with a cam more suitable to our combos. You'd think something out there would be an improvement. ZRX Jim's 1200 picked up a few horses using the X-1 grind. Be nice to find a nicely priced set of those. My block's in the mail!
Karl, I wound up with 106/108 using my cam combo. I'd probably leave out the base shim gasket to gain a tad more compression. I had a good bit of piston to valve clearance with those timing numbers. You should still be able to mill another .005 from the block and still have a safe .035 piston to head clearance.
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MadMike
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posted May 12, 2002 08:41 PM
We dont have that base shim gasket in the stroker kit. also you can see where my exhaust valves "rubbed" the pistons, where the valve relef were in the pistons... on the side not the bottom...
Mad Mike..
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ZRXDean
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posted May 12, 2002 10:32 PM
It is weird. I could kinda understand why the way-big X3s didn't work, but I was expecting the .392/240 duration Webcam #19 to perk it up a bit. I just got in from a ride, and I think I will give it one more chance this Wed, and see if maybe the headwind and air were worse than I thought. Felt pretty strong just now in the cool air.
Another note - I just re-ordered my clutch plates to get more slip, and it worked like a charm, I love it. The middle 6 are stacked fiber-fiber,steel-steel, fiber-fiber. The lockup has 2 of 6 arms aluminum bolted, with OEM springs. It comes on soft, then locks up smooth... thank you Herb Painter with the no-bars lockup advice
Good news on your block Ken, were you able to get the 81mm? Be sure to check your bore clearances when you get it. Glen told me .0015 - .002 on the phone, and none were over .001 - and one was .0003
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entropy
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posted May 13, 2002 12:29 AM
Thanks for the info. I don't think I better have anything milled off the block because along with the cams I am adding .6mm in stroke which I think is like .020" (the billet crank has 0.6mm increase over the 1361 kit).
Ken/ZRX/MM,
pls give me a lesson in cam timing. what happens when you add/subtract from 105 on intake and 105 on exhaust?. i.e. why 106 on intake and not 104 or 108?????, why 108 on exhaust and not 110 or 106????
Sorry to ask such elemental questions but I'm just starting out trying to understand what causes what...
Thanks
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madmike
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posted May 13, 2002 06:53 AM
Ok I am by no means a Pro here!!! warning in advance!! but this is the way I understand it. your cam degreeing, allows you to adjust the timing in which you dump your fuel into the cylinders, and when you allow the burt/burning fumes out of the cylinder walls. so if you change it forward or backwards your changing the entire combustion action of your motor. an example of your intake side. you tring to put in X amout of fuel and air correct if your timing is off and your valves are shutting early then your not getting the correct amout of fuel into your cylinders = loss of power, ok now the opposite way, you shoot the full amout of fuel into the cylinders but your valves stay open slightly too long, and bingo on the compression stroke your loosing vital fuel and air back out your open valves = loss of power, and same on the exhaust side you dont want to leave burnt gas in the cylinder nor do you want burning fuel to be blowing out into your exhaust,
Ok now if there is a Pro out there that can correct me if I am totally wrong then please do, because this is the way I understand it. and I would like to know the correct way also if Im wrong!!
Mad Mike
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ZRXDean
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posted May 13, 2002 07:35 AM
Here's a great article on cam timing, by the immutable Doug Meyer. As I understand it, lobe center management allows you to tweak the optimal breathing range, sacrificing in one area to gain in another. The numbers on the ZX/X3 cams above are Doug's recs.
http://www.muzzys.com/articles/lobe_centers.html
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entropy
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posted May 13, 2002 09:39 AM
Thx guys,
that info ups my level of knowledge by a factor of a million or so!!!!
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RAC4IT
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Bergie
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posted May 13, 2002 02:42 PM
quote:
60' - 1.571
330' - 3.999
1/8 - 6.008
1/8 - 121.98mph
1000' - 7.752
1/4 - 9.238
1/4 - 155.42
With a 6" over arm right?
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entropy
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Posts: 8671
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posted May 14, 2002 12:15 AM
yep, 6" arm.
The ET is a tenth off previous passes, but mph is "best yet"
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ZX12Girl
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posted May 15, 2002 09:44 PM
Cool!!! Man, you crack me up (wording)!!!! LOL
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