Athena 170cc bore kit recommendations
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@harveymg Hi Harvey,
Firstly, I've never had a 170kit. But have ridden one. I would recommend looking at tuning a 3MB or 4FU barrel and cylinder head rather than spending £450 on the Athena kit.
I had a tuned TZR 134cc engine with Mikuni TM32 and Ignitech ignition upgrade, and it would pull hard to 85mph in 5th gear, all around the same cost as an Athena Kit alone.
The port timings on the 170 kit are seriously underwhelming but can be modified properly though,
My advice, have a gander at tuning the 125. It was a blast, and relatively inexpensive.
@Darty said in Athina 170cc bore kit recommendations:
I would recommend looking at tuning a 3MB or 4FU barrel and cylinder head rather than spending £450 on the Athena kit.
I had a tuned TZR 134cc engine with Mikuni TM32 and Ignitech ignition upgrade, and it would pull hard to 85mph in 5th gear, all around the same cost as an Athena Kit alone.Thanks Darty for the responce but im fairly new to the DTR tuning. could you tell me what the difference between the 3MB and 4FU cylinder is. and what jetting you were running on your Mikuni while on that setup
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@Darty said in Athina 170cc bore kit recommendations:
I would recommend looking at tuning a 3MB or 4FU barrel and cylinder head rather than spending £450 on the Athena kit.
I had a tuned TZR 134cc engine with Mikuni TM32 and Ignitech ignition upgrade, and it would pull hard to 85mph in 5th gear, all around the same cost as an Athena Kit alone.Thanks Darty for the responce but im fairly new to the DTR tuning. could you tell me what the difference between the 3MB and 4FU cylinder is. and what jetting you were running on your Mikuni while on that setup
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@Darty said in Athina 170cc bore kit recommendations:
I would recommend looking at tuning a 3MB or 4FU barrel and cylinder head rather than spending £450 on the Athena kit.
I had a tuned TZR 134cc engine with Mikuni TM32 and Ignitech ignition upgrade, and it would pull hard to 85mph in 5th gear, all around the same cost as an Athena Kit alone.Thanks Darty for the responce but im fairly new to the DTR tuning. could you tell me what the difference between the 3MB and 4FU cylinder is. and what jetting you were running on your Mikuni while on that setup
@harveymg I'd contact Mick Abbey for a quote on the tuning work and see what it would cost that way you'd get it all set up correctly
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I have had plenty of experience with the Athena 170. Bad quality casting and bad overall performance. There was even a hole in my cylinder which leaked coolant. Athena wouldn't bother. Don't buy if you are looking for performance.
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I'm actually building a fully tuned engine based on the athena 170 cylinder, cylinder must be ported(in my case i've fully done Booster Exhaust ports and intake work aswell as engine case work., and you must be running atleast a 53mm stroker crankshaft to be able to get something out of this kit(i actually have a fully built cnc one for sale right now). You should also add a programable cdi to be able.
If you need any kind of tuning work hit me up on message for a quote for exactly what you want to do with it.
Some of the guys are kinda correct here, if you don't want to spend alot of money, just get yourself a 4FU cylinder ported, your cylinder head machined to get the correct squish and combustion area, a decent carburator.A good ported 175cc(yes because for it to run correctly you must atleast use a 53mm stroker crank which increases it to 175cc) will make more power and more torque than a good ported original cylinder.
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I'm actually building a fully tuned engine based on the athena 170 cylinder, cylinder must be ported(in my case i've fully done Booster Exhaust ports and intake work aswell as engine case work., and you must be running atleast a 53mm stroker crankshaft to be able to get something out of this kit(i actually have a fully built cnc one for sale right now). You should also add a programable cdi to be able.
If you need any kind of tuning work hit me up on message for a quote for exactly what you want to do with it.
Some of the guys are kinda correct here, if you don't want to spend alot of money, just get yourself a 4FU cylinder ported, your cylinder head machined to get the correct squish and combustion area, a decent carburator.A good ported 175cc(yes because for it to run correctly you must atleast use a 53mm stroker crank which increases it to 175cc) will make more power and more torque than a good ported original cylinder.
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@DanRacing thanks for the advice I'm probably going to end up doing that as I don't have a very big budget and wouldn't like to to a lot of work like that. I will look into the 4FU cylinder. Where would be a place i could get one of them?
@harveymg said in Athina 170cc bore kit recommendations:
@DanRacing thanks for the advice I'm probably going to end up doing that as I don't have a very big budget and wouldn't like to to a lot of work like that. I will look into the 4FU cylinder. Where would be a place i could get one of them?
I might be able to get one here in portugal and port for you then ship it there to the UK. They are common here in Portugal, the 3MB ones are cheaper but they have a iron bore instead of nikasil
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I have had plenty of experience with the Athena 170. Bad quality casting and bad overall performance. There was even a hole in my cylinder which leaked coolant. Athena wouldn't bother. Don't buy if you are looking for performance.
@Irongamer727 that's really bad! im going to take everyone else advice and get a 4FU or 3MB cylinder instead with a aftermarket pipe and carb
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Cheers @beng1968 .
I must admit, I bought 2 more Athena kits sometime after this post was made and can't concur with the opinions here.
The casting was spot on and it was very good value for money. Considering it comes with everything you'd need to bolt it onto your engine, I'd say it's good value.
I will agree it's not YZ rip roaring performance from stock, and considering the extent of tuning on my DTR, it's still nothing compared to a stock Aprilia RS 125.
However, it's not without its merits. The extra CCs give a nice broader range of power, which as I've gotten older I've come to appreciate more (I'm no longer 75kgs wet
).I did take my cylinder to Mick Abbey for further porting and there is still more porting work that I need to do on my setup. It should be a decent bit of kit, when setup properly.
The first experience I had was when I loaned my brothers 2001 DTR back in 2010, he'd fitted the Athena kit amongst various other mods, and that went very well. At the time, I went all in on a ported
3MB00Pcylinder from theTZR Belgardaand that setup definitely served me well. I haven't been on my DTR for several years now and I am eager to fire it up again to rejudge my opinion.
