Help! RB T9

溫完機後改用25%油是否要係盤頂加介子？如要加，又加幾多呢？0.1或0.2？

溫完機後改用25%油是否要係盤頂加介子？如要加，又加幾多呢？0.1或0.2？
hulix 發表於 2009-7-21 13:52

                               
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用低度數 e.g. 5%, 16% run 機唔駛加.

run 好用25% 較機就記得加啦

溫完機後改用25%油是否要係盤頂加介子？如要加，又加幾多呢？0.1或0.2？
hulix 發表於 2009-7-21 13:52

                               
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用25%油,盤頂total 0.4mm

Thx all Ching!

你是否溫好部機??

yes,used 5% for break-in
Will add another 0.1mm head shim & use 25% for normal usage

yes,used 5% for break-in
Will add another 0.1mm head shim & use 25% for normal usage
hulix 發表於 2009-7-22 07:30

                               
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Veay good la ,RB engine is easy to get fast ,enjoy your engine

for hot weather , better to add 0.2mm head shim for 25%. so total 0.5mm.
it will be much better for the engine unless you go racing

for hot weather , better to add 0.2mm head shim for 25%. so total 0.5mm.
it will be much better for the engine unless you go racing
Kitracer 發表於 2009-7-22 11:14

                               
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Brother Kitracer, just want to ask ask in hot weather, shall we consider adding shims to decrease the compression or changing the glow plug first?

thanks a lot

This is what I do.

add extra shim for hot weather, then lower back to normal during cooler weather, like 25.

It also depends how much you want to push your engine. For most people, I believe use 0.5mm for .12 and 0.8mm for 21 is safe in most condition unless weather gets below 10C.
(the air density would be very  low at 10c so most will learn the engine too much to get the right temperture then the plug will fail!)


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Nitro X, Tomorrow Fuel today.
No 1 fuel

My recommendation is just general.

Playing with head shims is really the last thing I do. I am having enough trouble to set the right clutch, right Plug and car set up thats why I say 0.5mm head shim so that it is safe.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Nitro X, Tomorrow Fuel today.
No 1 fuel

My recommendation is just general.

Playing with head shims is really the last thing I do. I am having enough trouble to set the right clutch, right Plug and car set up thats why I say 0.5mm head s ...
Kitracer 發表於 2009-7-22 12:57

                               
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Dear Kitracer
The engine will run safety is right,but if 0.5mm shim add ,you must to keep watch for the engine to get 5 Minute running time when in the race.

Dear Kitracer
The engine will run safety is right,but if 0.5mm shim add ,you must to keep watch for the engine to get 5 Minute running time when in the race.
BT 發表於 2009-7-22 13:24

                               
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依，　係喎，　驚唔夠油喎．．．

不過用　nitXX-X 　好似要比　torXXdo 行 lean　少少．．．應該夠油掛？　

Dear Kitracer
The engine will run safety is right,but if 0.5mm shim add ,you must to keep watch for the engine to get 5 Minute running time when in the race.
BT 發表於 2009-7-22 13:24

                               
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When I add shim, I experinced more run time.
In theory, when you add more shim, you will reduce the timming and so you should save fuel.
Have you experince differently?

back to topic.

I also suggest use RB or Novarossi plug for this engine.  You will experience different power when you use other brand plug.