Palmaris engine thread
#2044
Originally Posted by Francis M.
thanks edward for all the help at the track today. Oh and the PR12 is a screamer.


You are very welcome! BTW forgot to give you original carb.
Mark got ball park settings on it and he did great work with that. Thanks a lot Mark.
Edward
#2047
Just like to share my experience on Pipe testing with the PR12.
After 1.5 litre, (I think the engine need 1 more litre to fully break in ). SKyline pipe and HEC second generation are identical in power from bottom to Top end. The HEC 1st gen had better top end but litte less on bottom.
I was using 17/61 & 23/56 ( 710) . This engine really like to rev and you can hear it at end of straight so I will switch to 16/61 & 22/56 this week end to test.
Fuel consumption is excellent. I can easily get 5min 30 per tank so after fully break in , I hope to get another 10 to 15 sec.
The lap record on this new layout on our track so far clocked 17.6. My best is 17.8. Can't do much on driving skill
but hope the engine will help me pull that gap closer next week.
After 1.5 litre, (I think the engine need 1 more litre to fully break in ). SKyline pipe and HEC second generation are identical in power from bottom to Top end. The HEC 1st gen had better top end but litte less on bottom.
I was using 17/61 & 23/56 ( 710) . This engine really like to rev and you can hear it at end of straight so I will switch to 16/61 & 22/56 this week end to test.
Fuel consumption is excellent. I can easily get 5min 30 per tank so after fully break in , I hope to get another 10 to 15 sec.
The lap record on this new layout on our track so far clocked 17.6. My best is 17.8. Can't do much on driving skill
but hope the engine will help me pull that gap closer next week.
#2048
Tech Initiate
Joined: Sep 2005
Posts: 36
[QUOTE=kitracer]Just like to share my experience on Pipe testing with the PR12.
This is very good idea. Perhaps everyone could add their experience including things like nitro %, temp, shims, Mixture Screw settings etc.
This could create a database for the not so masterful tuners to help them get into the ballpark.
Will start to run mine in next weekend. Can't wait.
This is very good idea. Perhaps everyone could add their experience including things like nitro %, temp, shims, Mixture Screw settings etc.
This could create a database for the not so masterful tuners to help them get into the ballpark.
Will start to run mine in next weekend. Can't wait.
#2049
Originally Posted by EdwardN
Hey Francis.
You are very welcome! BTW forgot to give you original carb.
Mark got ball park settings on it and he did great work with that. Thanks a lot Mark.
Edward
You are very welcome! BTW forgot to give you original carb.
Mark got ball park settings on it and he did great work with that. Thanks a lot Mark.
Edward
#2051
Originally Posted by Darth Vader
Hi guys,
Any recommended break in method for this motor or just the regular WOT method will do...? How many tanks at WOT before start running on track?
What's the factory needle setting?
Cheers.
Any recommended break in method for this motor or just the regular WOT method will do...? How many tanks at WOT before start running on track?
What's the factory needle setting?
Cheers.
2-3 tanks on starter box reach on high idle, then 5-6 tanks on track slow to medium and on end of couple tanks accelerate on straight but do not let it shift.
Next 2-3 tanks you can tune to race and keep run it, even race with it till you will see how engine start pulling really fast. usualy it takes to be fully ready about in a galon.
Edward



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