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Model Forum / Radio Controlled / Land Models / March 2007Axial engines: Really a drop-in soloution for buggies?
I read on Axial's website that their .28 and .32 are a "direct bolt-in replacement engine for any .21+ engine mount". Has anyone put one in a buggy, ,, specifically a hyper 7 or an Ofna MBX Ultra. Any help will be appreciated. Thanks. >I read on Axial's website that their .28 and .32 are a "direct bolt-in > replacement engine for any .21+ engine mount". Has anyone put one in a > buggy, ,, specifically a hyper 7 or an Ofna MBX Ultra. Any help will > be appreciated. Thanks. All big blocks have standard mounting holes on the engine, hence any big block will work in any big-block equipped vehicle. Axial motors would be a direct bolt-in for your buggy. If you're looking for a hot buggy motor, save yer' $$$ and grab a Mach 427 (standard equipment on the Losi 8ight). Gobs of torque and rev out to 43,000+ RPM. They SCREAM. Doc >>I read on Axial's website that their .28 and .32 are a "direct bolt-in >> replacement engine for any .21+ engine mount". Has anyone put one in a [quoted text clipped - 8 lines] > >Doc Are buggy engines considered big-block? I had to do some filing on the mounts and shim under them to get my Nova .28 in my hyper 7, , but it fits OK once that was done. Also, I have a .28 out of an MGT that it WAY too bulky for a buggy, , is that considered a big-block, , ,or just something weird (Seems like the pull-starter is the thing in the way the most, ,it's much fatter than any other I've seen) I looked for the Mach 427, , ,haven't seen much of it except on ebay. The Axial can be had for $125, , ,but if I could find as good of a deal on the Mach, , I'd get it. Saw a Losi 8ight RTR, ,, Can't remember the price though, , ,sweet looking ride. . I notice that on most .28 motors (or at least the ones I've checked out), the distance from the bottom of the crankcase to the bottom of the mounting tabs is BIGGER than the height of an Ofna mount. Is this going to be standard on a .28? What about other .21s and such? Am I just goi9ng to be stuck shimming the motor up? Thanks. >>>I read on Axial's website that their .28 and .32 are a "direct bolt-in >>> replacement engine for any .21+ engine mount". Has anyone put one in a [quoted text clipped - 29 lines] > going to be standard on a .28? What about other .21s and such? Am I > just goi9ng to be stuck shimming the motor up? Well Doc is right with the theory, but in practice it is true that some big blocks are a little awkwardly shaped. I haven't toyed with any of the motors you're discussing so can't really help with them though. Just don't buy an STS :-)  SignatureDan Formerly DanTXD OK, I'll bite: What's wrong with STS? I'm running a D21E in my MBX5T and it's so far, so good at 1/2 gallon. Thing rips for a hundred-dollar motor. <<snippage>> << Just don't buy an STS :-)>> > OK, I'll bite: What's wrong with STS? I'm running a D21E in my MBX5T > and it's so far, so good at 1/2 gallon. Thing rips for a hundred-dollar [quoted text clipped - 3 lines] > > << Just don't buy an STS :-)>> Ah sorry it was a joke from a previous thread heh. I know lots of people rave about them - I had a nightmare with my .30 though. Everyone has different experiences with them though as you say. SignatureDan Formerly DanTXD No problem, just curious. I read in one of the ass-kissing RC mags that the .30 had a very thin sleeve which I can imaging may not be a good thing. What happened to your .30? I do know that STS makes engines for a few of the majors; some of the heads even look the same as the STS line. > > OK, I'll bite: What's wrong with STS? I'm running a D21E in my MBX5T > > and it's so far, so good at 1/2 gallon. Thing rips for a hundred-dollar [quoted text clipped - 7 lines] > rave about them - I had a nightmare with my .30 though. Everyone has > different experiences with them though as you say. > No problem, just curious. I read in one of the ass-kissing RC mags that > the .30 had a very thin sleeve which I can imaging may not be a good > thing. What happened to your .30? I do know that STS makes engines for > a few of the majors; some of the heads even look the same as the STS > line. It broke in okish - but then there was ridiculous lack of ability to hold a tune, it would never settle, not even for a minute or so. I've since been told that I maybe had to seal the carb and backplate - but IMHO you shouldn't have to do that on a new engine, it's just shoddy workmanship. I've had low price engines before (SH, K4.6 even was sub £100 new) and have never had such issues. For the split second it was tuned, it did have awesome power, unfortunately one run down the carpark and it was suddenly too rich or too lean again (I'm confident enough in my tuning abilities these days to be certain it wasn't user error as well). Just my 2p :-) SignatureDan Formerly DanTXD For the record, I bought a Novarossi 21BF and it handily beats the STS D21E in ease of tuning and power. I'd still say the STS is a bargain at near half the price of the Novarossi. I'm guessing the D21E was copied from the 21BF. As usual, YMMV. Brian > > OK, I'll bite: What's wrong with STS? I'm running a D21E in my MBX5T > > and it's so far, so good at 1/2 gallon. Thing rips for a hundred-dollar [quoted text clipped - 7 lines] > rave about them - I had a nightmare with my .30 though. Everyone has > different experiences with them though as you say. > Are buggy engines considered big-block? I had to do some filing on the > mounts and shim under them to get my Nova .28 in my hyper 7, , but it > fits OK once that was done. Anything .21 or bigger is a big-block (with the exception of some of the aftermarket motors designed for Traxxas vehix), so yes, 1/8 buggies are big-blocks. > Also, I have a .28 out of an MGT that it WAY too bulky for a buggy, , > is that considered a big-block, , ,or just something weird (Seems like > the pull-starter is the thing in the way the most, ,it's much fatter > than any other I've seen) The multi-start on the MGT motors is HUGE! You could replace it with a standard pullstart or even an OFNA rotostart backplate to get her in there, although IMO the MGT .28 is a pretty lackluster engine. > I looked for the Mach 427, , ,haven't seen much of it except on ebay. > The Axial can be had for $125, , ,but if I could find as good of a > deal on the Mach, , I'd get it. Saw a Losi 8ight RTR, ,, Can't > remember the price though, , ,sweet looking ride. . I got my last 427 on the bay for $95 SHIPPED! Just hunt for awhile and you'll find a sweet deal eventually. > I notice that on most .28 motors (or at least the ones I've checked > out), the distance from the bottom of the crankcase to the bottom of > the mounting tabs is BIGGER than the height of an Ofna mount. Is this > going to be standard on a .28? What about other .21s and such? Am I > just goi9ng to be stuck shimming the motor up? You could shim or you could just grab a taller set of universal mounts and use them instead. HTH, Doc > "GTD" <duuuh@stoopid.net> wrote in message > > Also, I have a .28 out of an MGT that it WAY too bulky for a buggy, , > > is that considered a big-block, , ,or just something weird (Seems like [quoted text clipped - 4 lines] > standard pullstart or even an OFNA rotostart backplate to get her in there, > although IMO the MGT .28 is a pretty lackluster engine. It actually didn't work too bad, , super easy to tune and never hadto be touched once broke in. True enough that it was't the most powerful .28 out there, but there are worse IME. > > I looked for the Mach 427, , ,haven't seen much of it except on ebay. > > The Axial can be had for $125, , ,but if I could find as good of a [quoted text clipped - 3 lines] > I got my last 427 on the bay for $95 SHIPPED! Just hunt for awhile and > you'll find a sweet deal eventually. Did that include a pullstarter? > > I notice that on most .28 motors (or at least the ones I've checked > > out), the distance from the bottom of the crankcase to the bottom of [quoted text clipped - 4 lines] > You could shim or you could just grab a taller set of universal mounts and > use them instead. I've not found them yet. Gonna try the LHS when I go to town tomorrow.. . Thanks > HTH, > > Doc >The multi-start on the MGT motors is HUGE! You could replace it with a >standard pullstart or even an OFNA rotostart backplate to get her in there, >although IMO the MGT .28 is a pretty lackluster engine. Just for S&G, I got a tigerdrive for that engine, and now it fits in there much better. It's blubbering rich and it moves it around ok. I think I'll wait until it gets warmer before getting a new powerplant. I've read that one should not run-in a new engine in under 45 degree f weather. That's a couple months away at best here. I know if I got one, I'd want to run it right away. OTOH, , prices are probably better this time of year (wishful thinking?) >> I looked for the Mach 427, , ,haven't seen much of it except on ebay. >> The Axial can be had for $125, , ,but if I could find as good of a [quoted text clipped - 3 lines] >I got my last 427 on the bay for $95 SHIPPED! Just hunt for awhile and >you'll find a sweet deal eventually. I didn't notice those had a rotostart at first. I think I'll end up with one of those, ,, unless I break down and buy the RTR Kyosho Inferno the LHS has, brand new, for $330 or so. >> I notice that on most .28 motors (or at least the ones I've checked >> out), the distance from the bottom of the crankcase to the bottom of [quoted text clipped - 4 lines] >You could shim or you could just grab a taller set of universal mounts and >use them instead. I couldn't find the taller mounts at the LHS, so shimming it must be. . >HTH, > >Doc |
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