Cool (get it?)
Was it bought or home made?
If home made, done a good job!
| XRAY - Model racing cars https://setup.teamxray.com/xsetup/legacy/ |
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| rb ws7iii lighter head https://setup.teamxray.com/xsetup/legacy/viewtopic.php?f=9&t=8877 |
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| Author: | jokersat [ Wed Feb 25, 2009 11:02:55 ] |
| Post subject: | rb ws7iii lighter head |
my new lighter head for my ws7iii engine By |
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| Author: | Bazza [ Wed Feb 25, 2009 11:24:04 ] |
| Post subject: | |
Cool (get it?)
Was it bought or home made? If home made, done a good job! |
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| Author: | jokersat [ Wed Feb 25, 2009 15:15:46 ] |
| Post subject: | wer |
and now i am working os max v-spec |
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| Author: | jokersat [ Wed Feb 25, 2009 15:18:39 ] |
| Post subject: | wer |
my other os max v-spec lighter motor |
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| Author: | Robin Frischkopf [ Wed Feb 25, 2009 16:42:55 ] |
| Post subject: | |
Nice pictures, however more importantly: How many grams? |
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| Author: | jokersat [ Wed Feb 25, 2009 18:37:55 ] |
| Post subject: | WER |
| Author: | Bazza [ Wed Feb 25, 2009 21:25:18 ] |
| Post subject: | Re: WER |
| Author: | jokersat [ Thu Feb 26, 2009 06:05:08 ] |
| Post subject: | WER |
| Author: | Bazza [ Thu Feb 26, 2009 18:05:29 ] |
| Post subject: | |
I'd imagine the drilling was hard as you drill each fin, trying to keep them level and straight too 
So it's 15-20% lighter not 15-20% more performance. Good work though mate
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| Author: | lauri [ Thu Feb 26, 2009 19:39:04 ] |
| Post subject: | |
I'd like to know how drilled head affects cooling performance? ~50g lighter is a really big thing! If it still cools the engine well it would be a nice modification to consider. Hope someone has compared drilled head vs ordinary head in same conditions. Ok, the new OS Vspec II has lightened head, but it costs a... A LOT
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| Author: | daniel366940 [ Thu Feb 26, 2009 20:26:10 ] |
| Post subject: | |
i have a ws7 and an os speed and have never had cooling problems with any of them using standard heads on a race tune cant see how this adds any performance |
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| Author: | xlgraphicspro [ Thu Feb 26, 2009 20:44:01 ] |
| Post subject: | |
It has a better cooling effect with more surface exposed to the air. But I think the over all performance gain would be the overall weight reduction of your vehicle. especially because the weight is so high up on your vehicle. There's a reason O.S. and GRP did it to theirs heads. |
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| Author: | lauri [ Thu Feb 26, 2009 23:24:31 ] |
| Post subject: | |
OS says about its new V-spec II Engine "18 holes drilled in the heat sink head to increase cooling and lighten weight by 14 grams". Jokersat, did you really get 44g off of your OS? My new VZ-B cooling head (same as yours!) weighs 91g (pluss the 4 screws total of 5g). The 44g off of 91g sounds too good to be true?! |
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| Author: | jokersat [ Fri Feb 27, 2009 07:03:52 ] |
| Post subject: | wer |
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