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Stage 2 thunderstorm
https://ukbeg.com/forum/viewtopic.php?f=7&t=11959		 Page 1 of 1
Author:  Murty [ 13 Aug 2011 08:16 ]
Post subject:  Stage 2 thunderstorm
Just dreaming but what is the main difference between this;

http://www.ebay.co.uk/itm/Buell-Thunder ... 35b3729f45

and the stage 3 thunderstorm? I know the stage 3 has cams.

I also read somewhere that the standard S1 cams are good, are the stage 3 ones alot better?
Author:  gusm2 [ 13 Aug 2011 10:06 ]
Post subject:  Re: Stage 2 thunderstorm
what bike do you plan fitting them to ?
Author:  Murty [ 14 Aug 2011 08:42 ]
Post subject:  Re: Stage 2 thunderstorm
It on to a S1 lightning, engine standard at the minute. Kit looks cheap especially with the recent price hike on heads.
Author:  pash [ 14 Aug 2011 09:50 ]
Post subject:  Re: Stage 2 thunderstorm
Firstly, check they will still sell to the UK, although it says they will, HD has directed them not to.

viewtopic.php?f=7&t=11334

Secondly, I was considering something similar, but in the end I went down the route of XB heads for a number of reasons.

viewtopic.php?f=8&t=8142

IIRC I went from about 80bhp to about 95bhp. It is not the horsepower increase that is most striking, but the attention to detail of carb and ignition setup that has given a really smooth and tractable engine from very low down. You can get the same by copying my setup.

When that kit arrives, it will be costing you £1100. If you went down the XB route, which would be much cheaper, you would save enough money for some great stuff such as (and I really believe you will save enough money for all these things):

1. Spondon440 front mount (which you would need cos the front mount holes are closer together)
2. Mikuni carb (which makes a big difference in throttle response)
3. Dyna2000 or Screaming Eagle or similar programmable ignition unit (will give you a lot more bottom end - just right for overtaking)
4. Cometic gaskets to get the squish to a minimum
5. Forcewinder
6. Set of new tyres
7. Set of headraces
8. Set of wheel bearings

I recently did a back to back against a 7000 mile S1W which has the Thunderstorm heads, race ignition, race airbox, CV carb with Thunderslide kit, and it felt flat in comparison to The Grenade. In reality it is probably a good example of a largely standard S1W.
Author:  Murty [ 24 Aug 2011 23:03 ]
Post subject:  Re: Stage 2 thunderstorm
Pash that is what i call a reply. Thanks.

It brings it home to you when you go through so much work for 15bhp increase but probably a completely different beast to ride. (your write up is very good).

I think a honda v twin or similar engine would be the quickest way to power, but just wouldnt sound right lOl
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