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Model Forum / Radio Controlled / Land Models / October 2006Mach 427 vs Sportwerks .26
Okay I need to know the deal between these, I can get a Mach now or wait 6 days and get a sportwerks. Are they different enough to notice?!??!? Added bonus of the Mach is that it comes with the stock rotostart to suit an LST2, does anyone know if that will work in a Savage straight out?? My gut feeling is no as the hole for the shaft is too low and wont clear the shock tower. Actually hold that thought, will a K46 rotostart fit the back plate of the rotostart equipped Mach 427??? Finally are the heads the same, I'll want to run a Nova head on this. <goes off to check> If they are basically the same I think I'll grab the Mach now. Cheers Dre > Okay I need to know the deal between these, I can get a Mach now or wait 6 > days and get a sportwerks. [quoted text clipped - 15 lines] > > Cheers Dre The Sav rotostart handset won't work with the LST2 starting back plate - the Losi spin start shaft is different. I can't answer the other questions :-)  SignatureDan - on his PC >> Okay I need to know the deal between these, I can get a Mach now or wait >> 6 days and get a sportwerks. [quoted text clipped - 19 lines] > the Losi spin start shaft is different. I can't answer the other > questions :-) Noted, thanks for the info! Cheers Dre Inline....................... > Okay I need to know the deal between these, I can get a Mach now or wait 6 > days and get a sportwerks. > > Are they different enough to notice?!??!? They are essentially the same, except the Mach 427 has more aggressive porting resulting in slightly more HP and slightly higher redline RPM. XRC dyno specs are below. Sportwerks 0.26 1.30 @ 26,750 rpm 53.76 oz-in @ 19,000 rpm 42,750 rpm w/ kit n/a Team Losi Mach 427 1.31 @ 26,750 rpm 53.80 oz-in @18,750 rpm 43,250 rpm w/ kit n/a > Added bonus of the Mach is that it comes with the stock rotostart to suit > an LST2, does anyone know if that will work in a Savage straight out?? My > gut feeling is no as the hole for the shaft is too low and wont clear the > shock tower. Won't work on a Savage. The starter input is too low. > Actually hold that thought, will a K46 rotostart fit the back plate of the > rotostart equipped Mach 427??? Nope! Not without serious mods involving redrilling and tapping the backplate. You can use a backplate from a GS .21 (if you want the p/n I'll get it for you) on either engine and then attach a HPI Roto from an S-25 to it. In all honesty, they start and tune so easily I don't mind the pullstart one bit. > Finally are the heads the same, I'll want to run a Nova head on this. > <goes off to check> Yeppers. Heads look different on SWK .26 and Mach 427, but the button and the mounting holes are the same. A SWK .26 head will work on a Mach 427 and vice versa. > If they are basically the same I think I'll grab the Mach now. That's what I did. I paid $95 for it, pulled from a LST 2. A few things to note: 1. You MUST use the HPI header gasket with the HPI header. The header gasket that comes with the SWK or Mach is too big for the Savage header. 2. Maximum 16/49 gearing d/t the size of the backplate. If you want to go with a bigger CB you'll have to do the GS backplate mod like I mentioned above. 3. LOVES the polished pipe. 4. SWK .26 HSN is almost bang on from the factory, but LSN is WWWWAAAAYYYYY rich! 5. Mach 427 LSN is almost bang on from factory but HSN is WWWWWAAAAYYY rich! 6. Make sure you have some CB shims handy as the SWK/MACH crank is just a fuzz longer than the Savage and needs a few shims between the outside CB bearing and the crank bolt that hold it all on. Doc > Inline....................... > [quoted text clipped - 11 lines] > Team Losi Mach 427 1.31 @ 26,750 rpm 53.80 oz-in @18,750 rpm 43,250 rpm w/ > kit n/a So pretty much nothing in it then?? or is one noticably better than the other?? >> Added bonus of the Mach is that it comes with the stock rotostart to suit >> an LST2, does anyone know if that will work in a Savage straight out?? >> My gut feeling is no as the hole for the shaft is too low and wont clear >> the shock tower. > > Won't work on a Savage. The starter input is too low. Thought so... >> Actually hold that thought, will a K46 rotostart fit the back plate of >> the rotostart equipped Mach 427??? [quoted text clipped - 4 lines] > S-25 to it. In all honesty, they start and tune so easily I don't mind > the pullstart one bit. Nice! the one I'm looking at has a roto, so I'd need to change it over. Have you got that part number handy?? :) >> Finally are the heads the same, I'll want to run a Nova head on this. >> <goes off to check> > > Yeppers. Heads look different on SWK .26 and Mach 427, but the button and > the mounting holes are the same. A SWK .26 head will work on a Mach 427 > and vice versa. Brilliant! >> If they are basically the same I think I'll grab the Mach now. > [quoted text clipped - 21 lines] > > Doc Sweet! Thanks heaps for the info, just what I was looking for. What have you got in your Savage atm?? The Sportwerks or the Mach?? From memory you have the sport in the sav and the mach in the mayhem.. Hmmmmm Cheers Dre In-In-Inline...........he he he he! >> Sportwerks 0.26 1.30 @ 26,750 rpm 53.76 oz-in @ 19,000 rpm 42,750 >> rpm w/ kit n/a >> Team Losi Mach 427 1.31 @ 26,750 rpm 53.80 oz-in @18,750 rpm 43,250 rpm >> w/ kit n/a > So pretty much nothing in it then?? or is one noticably better than the > other?? The dyno can tell the difference, human senses cannot. They are definitely different per way of how they start, tune and run, but performance is just about equal IMO. >> Nope! Not without serious mods involving redrilling and tapping the >> backplate. You can use a backplate from a GS .21 (if you want the p/n [quoted text clipped - 4 lines] > Nice! the one I'm looking at has a roto, so I'd need to change it over. > Have you got that part number handy?? :) The Part number is 89007, or it might be GSC89007 depending on where you look. It's a backplate for a GS .21, commonly found on the GS Storm. You must use the GS one-way that comes with the backplate! > Sweet! Thanks heaps for the info, just what I was looking for. What have > you got in your Savage atm?? The Sportwerks or the Mach?? From memory > you have the sport in the sav and the mach in the mayhem. Yeah, SWK .26 in the Savage and Kanai 3, Mach 427 in the Mayhem ST. Of the three, the motor performs best in the Savage with the 3-speed and polished pipe. The others are single-speed so not nearly as explosive off the line as the Savage. It runs pretty cool compared to the HPI motors. 240-ish casual driving and it'll hit 260-ish if I'm really on it for a tank or two. This is with a NOVA head and OS #8 plug, running O'Donnels 20% race blend. Another thing to keep in mind is that the Dynamite Mach .26 and SWK .26 are identical motors aside from the carb (SWK carb is better), so you can use parts from a Mach .26 if you ever need them (like bearings, crank, piston, sleeve, rod) as they are usually about 15% cheaper than the SWK-branded parts. HTH, Doc > In-In-Inline...........he he he he! > [quoted text clipped - 9 lines] > definitely different per way of how they start, tune and run, but > performance is just about equal IMO. Nice, gives me more options! >>> Nope! Not without serious mods involving redrilling and tapping the >>> backplate. You can use a backplate from a GS .21 (if you want the p/n [quoted text clipped - 8 lines] > look. It's a backplate for a GS .21, commonly found on the GS Storm. You > must use the GS one-way that comes with the backplate! Thanks very much for that, saves me a packet trying it out myself :) >> Sweet! Thanks heaps for the info, just what I was looking for. What >> have you got in your Savage atm?? The Sportwerks or the Mach?? From [quoted text clipped - 17 lines] > > Doc Noted. Right, I think I'll go with the Sportwerks then, I have a nova head sorted, have plenty of number 8 plugs (thats what I use), have the ribbed pipe on the sav atm, but have the polished pipe ready to go. Need to find a GS backplate and a S-25 rotostart, no wait, I have one of those!! Now to wait another 5 days and hope the auction doesn't get too high :) Cheers Dre > Noted. Right, I think I'll go with the Sportwerks then, I have a nova > head sorted, have plenty of number 8 plugs (thats what I use), have the [quoted text clipped - 5 lines] > > Cheers Dre The GS backplate is around $30 IIRC, so you hafta factor that into the cost. I HATE PULLSTARTS! I do not mind the pullstart on the SWK .26. It starts easily and idles all day long w/o stalling out, and hot restarts are not a problem. Something to think about. Maybe try it with the PS and shitcan it if/when it starts to misbehave. Later! Doc Where are you finding sportwerks motors? I'm not seeing them many places, and where I do, I see little selection. >Okay I need to know the deal between these, I can get a Mach now or wait 6 >days and get a sportwerks. [quoted text clipped - 15 lines] > >Cheers Dre > Where are you finding sportwerks motors? I'm not seeing them many > places, and where I do, I see little selection. Sportwerks only has two engines, a .21 and a .26. These are made by Dynamite and are identical to the Mach 21 and Mach 26, aside from the carbs, which are far better on the Sportwerks engines. Sportwerks and Dynamite are distributed exclusively by Horizon Hobby (www.horizonhobby.com) although they can be had on E-Bay. HTH, Doc |
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