Ludicrous engine prices

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Hi There,

Recently I've been idly wondering about my blown up RGV250. Is there something else I can do to it to make it better?

I've been thinking that if I've got to drop the engine and rebuild it, why not think about an engine swap? There is a kit which is readily available to convert the engine mounts to take an RG500 Gamma engine. Great I thought! Keep it a two stroke, mildly tune the new engine to 100bhp and I've got me a 500GP bike! Smile

So, I've asked around on the RGV250 forum, and there was a bloke selling an engine, carbs and ignition/loom for £1000. OK, a bit steep I thought, but he didn't reply to my PM's. In his ad he stated that it was going on ebay this weekend, so I looked on ebay.

almost six days to go... £1600 Shocked

For a twenty year old 500cc engine. Yikes!

I knew that they were rare and precious, and I knew that they were a popular conversion for the RGV250 but blimey!

Shame really, I would have really enjoyed taking a stock looking RGV250 with a mildly tuned RG500 engine on a trackday. particularly at Cadwell, and particularly behind an R1 or something.

Sad

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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

https://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=011&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=320083133626&rd=1&rd=1
Crying or Very sad

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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

0ddball · World Chat Champion Joined: 15 Jul 2005 Karma :

Now that you can't see the bidders i think a lot more people are bidding their own items up.

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

And you thought an RGV was unreliable and high maintenance. And you want a tuned RG500 engine instead.

Glutton for punishment.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

iooi · Super Spammer Joined: 14 Jan 2007 Karma :

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Think Suzuki claimed 90 odd hp, but the reality was a bit over 70 (depending on if the road test bikes were tuned, Suzuki got caught out with a tuned RG250 in their road test fleet, running RG500 pistons).

Remember the RG500 is a disc valve engine, and likely to have a rather more violent power delivery than the reed valve RGV250 engine.

Not sure if you could pick up an RG400 engine for a lot less (although they are less powerful).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

Jack_Cheese · World Chat Champion Joined: 14 Jul 2005 Karma :

There was an RS250 with an RG500 engine in it on ebay recently. It looked absolutely stunning. It had Gixxer front and rear enda, and a custom paintjob too. Easily worth £5000 of anyone's money!
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Blau Zedong · Banned Joined: 26 Jun 2006 Karma :

PB did a feature on a tuned RG400 ages ago, bored out to 465cc and had the advantage of being cheap and faster than a stock 500. Standing 1/4 in the low 11's..faster than a derestricted Vmax Shocked

.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

2Smoke · Crazy Courier Joined: 15 Apr 2005 Karma :

A mate of mine is building an rgv500 using rgv barrels on the rg5 cases. Should be mental once its finished, was certainly quick on last years raf valley trackday...

(me behind.. oh the shame Embarassed

)
https://i59.photobucket.com/albums/g297/rgv500/tonypaul1-1.jpg

But they are one of the fastest readily available two stroke engines (try finding, let along buying a yzr500 lump) for the money.
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Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

How much power can you squeeze out of the 250 engine? If you can get that up to 70-75hp in a vaguely reliabile tune (fortnightly rebuilds), and shed some weight, it should be noticeably quick.

2Smoke · Crazy Courier Joined: 15 Apr 2005 Karma :

74hp is the most I have seen, reasonably reliable (ie would last between rebuilds).

Mines around the 70 mark depending on the weather and how arsed I can be to jet it. Very reliable but an engines only as reliable as you build it and maintain it. You only get into trouble when things are thrown together and not checked, jetting is quite important for the weather conditions, especially if you are jetting it tight. A friend of mine binned his honda rs250 at snett at 120mph after it seized due to it starting to rain, after it was jetted for dry weather. Dodgy. I never run that tight a line, got enough to worry about! Laughing

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Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

2Smoke · Crazy Courier Joined: 15 Apr 2005 Karma :