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Werks Racing GT Engine

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Old 08-08-2019, 07:31 AM
  #91  
afm
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Originally Posted by British Menace View Post
Hi All,

Quick question. Does anyone on here run their WERKS GT engine on 16%?
If so, what head shimming have you found works well? And plug. What plug also have you found works when using 16%?

Thanks in advance.

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BM
I have and I used it with 0.50mm head clearance measured with 1.0mm soldering wire compressed between head and piston through glow plug hole. By the way, Im currently using Sirio GT engines, and they are the same, saharing almost all parts. I think they are both manufactured by same factory. Great engines. Forgot to say I use OS RP6 glow plugs.
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Old 08-12-2019, 03:03 AM
  #92  
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Originally Posted by afm View Post
I have and I used it with 0.50mm head clearance measured with 1.0mm soldering wire compressed between head and piston through glow plug hole. By the way, Im currently using Sirio GT engines, and they are the same, saharing almost all parts. I think they are both manufactured by same factory. Great engines. Forgot to say I use OS RP6 glow plugs.
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AFM
Hey AFM,
How's thing's?
Thanks for answering my query. Thats good info' to know. I use the same method of measuring the "squish" myself.
At the moment I am running 30% with a clearance of 0.7mm. Do you think that's enough?
The reason why I ask is that I am unable to run the engine with an RP6 or 7?? (Without the glow igniter attached) Even the 5's, although they run well, blow too frequently!
I was wondering if I am not using enough clearance and that maybe the cause?
The engine is still quite new, maybe 15-18 tanks through.
I may try running the 16% fuel I think and see how that goes.
Again. Thanks for replying sir.

Regards
BM
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Old 08-12-2019, 06:57 AM
  #93  
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Originally Posted by British Menace View Post
Hey AFM,
How's thing's?
Thanks for answering my query. Thats good info' to know. I use the same method of measuring the "squish" myself.
At the moment I am running 30% with a clearance of 0.7mm. Do you think that's enough?
The reason why I ask is that I am unable to run the engine with an RP6 or 7?? (Without the glow igniter attached) Even the 5's, although they run well, blow too frequently!
I was wondering if I am not using enough clearance and that maybe the cause?
The engine is still quite new, maybe 15-18 tanks through.
I may try running the 16% fuel I think and see how that goes.
Again. Thanks for replying sir.

Regards
BM
If you're popping plugs, you have to raise the head. Add another 0.2mm
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Old 08-12-2019, 01:01 PM
  #94  
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Originally Posted by British Menace View Post
Hey AFM,
How's thing's?
Thanks for answering my query. Thats good info' to know. I use the same method of measuring the "squish" myself.
At the moment I am running 30% with a clearance of 0.7mm. Do you think that's enough?
The reason why I ask is that I am unable to run the engine with an RP6 or 7?? (Without the glow igniter attached) Even the 5's, although they run well, blow too frequently!
I was wondering if I am not using enough clearance and that maybe the cause?
The engine is still quite new, maybe 15-18 tanks through.
I may try running the 16% fuel I think and see how that goes.
Again. Thanks for replying sir.

Regards
BM
I haven't run with 30% nitro but I requote answer from Thomi who has experience in Brasil running with higer nitro contents:

"My base setup is using 25% nitro content, RP8 plug, 0,65mm clearance. From that on I have been playing around depending on the track, with the max. clearance. I ran 0,75mm with 30% nitro content and RP7 plug. Within these parameters you will find the ideal setting for a given track. Anything outside of these parameters won't be anymore in an ideal setup
window."

According to that I would say you if youre running 0.7mm, add 0.5mm for 30%.

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AFM
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