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Old 10-06-2008, 08:06 AM   #2836
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anyone know whats the actual head clearance for a 353? is it the same as the 3sct, ie 0.3mm + 0.3mm?

if thats the case, it should be safe to not add anymore shims for 25% nitro right? even if you add 0.1mm of shimming, isnt it a bit too much, ie 0.7mm? top end will suffer?
You will actually gain top end when adding shims, but you lose a little bit of bottom end, there should be a total of .55mm to .60mm shims if using 25% fuel.
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Old 10-13-2008, 05:49 AM   #2837
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which one is better the 353 or the 353 tune? Why?
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Old 10-13-2008, 10:21 AM   #2838
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which one is better the 353 or the 353 tune? Why?
Performance wise, the 353 tune would be better. I have seen a tuned's crankshaft and it has some nice cuts... I do not know if they changed the 353 tuned's timing. If they didn't I'd suggest getting the stock one, because the tuned one does not have any sleeve modifications...
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Old 10-13-2008, 04:32 PM   #2839
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well I race down at 301 and I need a motor with some legs and some punch I don't if to get the +12 or the 353
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Old 10-13-2008, 06:53 PM   #2840
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I have heard the novarossi plugs don't last long.I know a couple people are using ninja plugs in theres.Are there any other plugs that work for this motor or are designed to work with novarossi.I have a 35plus21lc/wc.Thanks
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Old 10-13-2008, 07:57 PM   #2841
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Nova and RB plugs are great. Ninja's and GRP are even better.
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Old 10-14-2008, 08:45 AM   #2842
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I have heard the novarossi plugs don't last long.I know a couple people are using ninja plugs in theres.Are there any other plugs that work for this motor or are designed to work with novarossi.I have a 35plus21lc/wc.Thanks
I think ninja plugs are the best I've been using them in my novarossi motors and they last a VERY long time unlike novarossi plugs!
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Old 10-14-2008, 09:56 AM   #2843
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I have heard the novarossi plugs don't last long.I know a couple people are using ninja plugs in theres.Are there any other plugs that work for this motor or are designed to work with novarossi.I have a 35plus21lc/wc.Thanks
In my 353 I still have the plug in it that I broke the engine in with and I got the motor new in april. pluse in 321 in my 960, that plug has been it it sence the 8th scale nats.
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Old 10-19-2008, 07:21 AM   #2844
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It is almost a year since i last played with my G4S. It is powered by a Novarossi Rex engine(RE 12S3). I was expecting some difficulties in starting up the engine. But it turn out to be effortless.The compression is still strong. Thumbs up for the quality in Novarrossi engines. The car "shoots" like an arrow at the slightest pull of the trigger. A lot of power in it. But there is a problem; the engine can't hold the idling, it just dies off after a few seconds if i stop pressing the throttle. What could be the problem? How can it be resolved? Please advise me. Thank you.
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Old 10-19-2008, 06:57 PM   #2845
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It is almost a year since i last played with my G4S. It is powered by a Novarossi Rex engine(RE 12S3). I was expecting some difficulties in starting up the engine. But it turn out to be effortless.The compression is still strong. Thumbs up for the quality in Novarrossi engines. The car "shoots" like an arrow at the slightest pull of the trigger. A lot of power in it. But there is a problem; the engine can't hold the idling, it just dies off after a few seconds if i stop pressing the throttle. What could be the problem? How can it be resolved? Please advise me. Thank you.
u might try increase your idling screw abit...
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Old 10-19-2008, 07:50 PM   #2846
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check your idle and low end mixture and if you haventd one so already try a new plug and fresh fuel
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Old 10-22-2008, 08:11 AM   #2847
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Thanks for your reply. When idle screw & low end needle are mentioned, do you mean clockwise or counter clockwise? How to determine when to stop turning the screw? By listening to the sound of the engine or what? Oh yes my engine produces a "rough, dry" sound. Does it mean it is lean? The G4S is no longer in production. What are the essential spare parts i need to get(parts that wear @ fast rate)? Are they compatible with G4RS? Thanks & have a nice day.
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Old 10-22-2008, 08:33 AM   #2848
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I'm running 353 how come after straight then getting into concern. The car seems still want to run. I have richer the low end and it helps a bit but still happening the problem. If I richer too much low end, the engine has worse response. What should I do?
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Old 10-22-2008, 09:26 AM   #2849
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I'm running 353 how come after straight then getting into concern. The car seems still want to run. I have richer the low end and it helps a bit but still happening the problem. If I richer too much low end, the engine has worse response. What should I do?
either your idle is too high
or
your clutch is dragging
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Old 10-23-2008, 04:54 AM   #2850
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The idle can't low anymore. If I lower it, engine will be die after the car stoped when the rpm goes down.

I have tried to adjust the clutch with harder tension. But i think if I do it more, I will have too much cap on throttle before the car moves.
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