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08-28-2007, 11:56 PM
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#31 (permalink) | |
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Super Moderator
 
Join Date: Sep 2006
Location: Southern Minnesota
Posts: 6,432
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QUOTE (SirAnalSiv @ Aug 28 2007, 10:43 PM)
Quote:
The requirements will change a little, but most people will not notice the need for any jetting. However, if you are a little off already, it can exagerate it to the point where it will need some changes to run properly. I would go ahead and change them expecting not to need any jetting, and see how it runs. The first thing I would expect to change would be the fuel screw because more aggressive cams really affect the intake pulse at lower rpms
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03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs
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10-10-2007, 01:34 PM
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#33 (permalink) | |
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Super Moderator
Join Date: Sep 2006
Location: Southern Minnesota
Posts: 6,432
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QUOTE (Bombsquadrider_00 @ Oct 10 2007, 12:01 PM)
Quote:
Its not quite that simple... It depends on your other mods, and everyone has a different preference
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03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs
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10-11-2007, 03:02 AM
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#34 (permalink) |
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:::Get a life! You're over 5000 posts:::
Join Date: Sep 2003
Location: KC
Posts: 8,018
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My preference on a tight MX track or tight trails would be a cam setup for more low end torque. For dunes, drags, fast trails I'd want a cam profile made for mid-upper end HP. Just my preference...
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11-02-2007, 10:47 AM
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#35 (permalink) |
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:::Ozark 250 rider:::
 Join Date: Apr 2006
Location: Texas
Posts: 387
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Hey guys, I sent an email to Hotcams this morning asking them if there was any chance of remaking the more aggressive "oldstyle" Stage 2 cams and here was the response:
"Hello Adam, We will not remake those cams. Our newer cams 2047-1 and 2048-1 make more power than those old cams in every part of the rpm range. Especially in the low end to midrange. The old cams only made more power in the very last 500-1000 rpms." What do ya'll think?
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2003 Yellow Z434 M/T 94mm jug, CP 12.5:1 piston, Ferrea stainless valves, DRZe kit, Oldstyle Stage 2 Hotcams, TT -16oz flywheel, Yoshimura TRC, FCR 39mm, ESR intake with "Splashesr" guard, Dyna NP CDI, Barnett CF clutch kit, Elka shocks, and a whole lot of other stuff. 47.32 HP / 32.84 TQ @ Little Sahara Sand Sports July 2009 QOTM |
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11-02-2007, 07:12 PM
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#36 (permalink) | |
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Super Moderator
Join Date: Sep 2006
Location: Southern Minnesota
Posts: 6,432
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QUOTE (ac99rt @ Nov 2 2007, 09:47 AM)
Quote:
I pmed you my thoughts... To sum it up for everyone else (was a long azz pm) My opinion is that what they say is a sales pitch. I believe the old style were in fact better over all, but could be weak off the bottom in a stock bore, stock compression engine. When adding the DRZe base gasket at the same time or a high compression piston, I believe it would be almost a total gain from idle to the limiter. If you have stock bore, stock compression, and like to ride some gnarly trails, then the new style may be better for you. If you ride MX, drag race, or run some wfo trails, I think you will like the old style better. Especially if you raise the compression! If you run more displacement than stock combined with high compression, I would not even look at the new style hot cams because I can say that with the old style, I had absolutely no shortage of low to mid with them. The old style cams were exactly the same, intake/exhaust, IMO this was for mass production and is also the only bad thing about them aside from weight. I have had very good luck combinding the old style intake cam with a bigger exhaust cam from Web. I could go on and on, but I wont...  
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03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs
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11-02-2007, 10:02 PM
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#38 (permalink) |
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:::Post Whore:::
Join Date: Aug 2007
Location: Connecticut
Posts: 2,660
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i have old style in/ex cams on both my z's, and my seatofthepantsometer says that guy is trying to up his new cam sales. i have 2 z's currently, one heavily modified, the other stock other than cams and exhaust. they both have insane torque down low, gnarly top end horsepower, and there isnt a flat spot in between. on top of all that, both of the quads have a perfect idle, and start great as long as the batts charged fully, (i wish i still had the auto decomp.)
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You are the result of 4 billion years of evolutionary success. NOW ACT LIKE IT. |
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11-02-2007, 10:32 PM
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#39 (permalink) |
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:::Get a life! You're over 5000 posts:::
Join Date: Sep 2003
Location: KC
Posts: 8,018
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I have a larger Web cam grind and I don't even notice the absence of the auto decompression unless the battery is low....but I fixed that by getting a 180 amp battery to replace the 120 amp stock battery. Auto decompression is only needed for the weak battery people and guys on 14:1 compression.
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11-02-2007, 11:08 PM
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#40 (permalink) |
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Administrator
 
Join Date: Sep 2003
Location: Southern Arizona for awhile...
Posts: 10,396
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The old style cams have more lift, more duration, and better lobe centers - they outperform the newer versions in every way.
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July 2005 QOTM |
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11-08-2007, 08:42 AM
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#41 (permalink) |
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:::Mini LT50 Rider:::
Join Date: Sep 2005
Posts: 67
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ANYBODY KNOW ANYTHING ABOUT TC RACING CAMS I THINK THEY HAVE 924 ON THEM I WOULD HAVE TO CHECK TO BE SURE I HAVE THESE AND NEW STYLE HOT CAMS DONT KNOW WHAT TO USE IN MY VENOM 434 14.1,TC PORTED HEAD BUILD ANY SUGGESTIONS
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03KFX400,SPARKS FCR,NOSS INTAKE,YOSHI R3,DYNA IGN,ON THE SHELF TC RACING CAMS AND PORTED HEAD,ALSO HAVE HOT CAMS NEW STYLE,CYLINDER ON THE WAY TO VENOM PERF FOR 434 14.1 400 ex boot |
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11-08-2007, 09:21 AM
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#42 (permalink) |
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:::Official Spammer:::
Join Date: Apr 2006
Location: Ohio
Posts: 3,777
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call tc racing. website is www.tcracingengines.com
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11-08-2007, 01:04 PM
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#43 (permalink) |
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:::Mini LT50 Rider:::
Join Date: Sep 2005
Posts: 67
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ya i just got them back from tom a few weeks ago just wanted to see if anybody used them before
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03KFX400,SPARKS FCR,NOSS INTAKE,YOSHI R3,DYNA IGN,ON THE SHELF TC RACING CAMS AND PORTED HEAD,ALSO HAVE HOT CAMS NEW STYLE,CYLINDER ON THE WAY TO VENOM PERF FOR 434 14.1 400 ex boot |
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11-21-2007, 07:44 PM
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#44 (permalink) |
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:::LT500 Rider:::
Join Date: Apr 2007
Location: Barry's Bay
Posts: 1,101
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how did the old hotcams without the decompressor work for starting? was it more difficult in cold weather? I was on the hotcams website and only seen thier new style cams they didnt have stage 1 or 2 just 1 part number for intake and 1 number for exhaust.
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My Ride: 2003 Z470 Cylinder Works jug , Hot rods +5mm stroker crank, CP stroker piston, Stage 3 / Old School hot cams, DRZ valve springs, +1mm Ferrea valves, Port and polished head, D.I.D 3/4 pitch camchain, K&N Air filter with 400ex air boot, Sudco/Sparks FCR 41 mm carb, R&D accelerator pump with adjustable leak jet 1.5 turns out, 50 pilot 185 main jet, needle on 3rd clip 2.0 turns out with edelbrock headstay mount, LRD custom aluminum air box, FMF Factory 4 exhaust, Dyna FS CDI, Dirt digger clutch, Janssen outlaw ball joints, GT Thunder Shocks, GT Thunder Linkage, Janssen MX-Tech +2 A-arms, Maxxis razr cross Front and ITP SX rear tires, ITP T9 Front Rims Douglas single beadlock rear rims, H-bomb Decal Kit, Maier race plastics Pro Armor Mx bumper and Skids, Moose Racing nerfs, Streamline Front and Rear Brake lines, Bare Performance Gusset Kit, powermadd hanguards, maximizer foot pegs, UM rad shrouds, moose racing brake block off plate, JB racing swing arm, twin row honda style axle carrier, honda 400ex hubs and rear brake caliper, RPM +4" axle, lonestar antifade honda brake hub. Front and rear lowering kit for ice racing, Herrmann racing +1" steering stem, Pro Taper Contour Bars, ODI lock on Grips. Wifes Ride: 2008 Raptor 250 Special Edition GYTR skid plates CT racing Jet kit CT racing Complete exhaust Pro Design pro flow intake Friends dont let Friends drive stock quads!! |
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11-21-2007, 08:07 PM
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#45 (permalink) | |
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Super Moderator
Join Date: Sep 2006
Location: Southern Minnesota
Posts: 6,432
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QUOTE (rumlesj1 @ Nov 21 2007, 07:44 PM)
Quote:
They crank ok, but when used with high compression or a poorly tuned carb, after time it will take it's toll on the starter clutch. Im on my second one.
__________________
03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs
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