2LikesGRP... Engine... Thread...
02-11-2009 | 09:41 AM
#916
Tech Regular
Joined: Dec 2008
Posts: 411
Scrap the bearings as well, metal shavings will have damaged the bearings as well.
02-11-2009 | 01:31 PM
#917
Jonro, Hate to tell you this, but the tune was off on that engine.
The piston has been cooked, and detination from being lean,and more than likely the lean condition has hammered the rod bushing out and changed the compression and timing, which in turn burnt the glow plug out.
I would not salvage anything out of that engine other than the carb and head!
Adam Drakes tune on this engine is:
.045 in from flush Hsn
.045 out from flush Lsn
.030 in from flush, idle screw
6mm restrictor
GRP 5 plug ( I run a GRP 4 plug)
2035 GRP pipe
The engine will run between 150 to 190 degrees(nitrotane,30%)
Good Luck
The piston has been cooked, and detination from being lean,and more than likely the lean condition has hammered the rod bushing out and changed the compression and timing, which in turn burnt the glow plug out.
I would not salvage anything out of that engine other than the carb and head!
Adam Drakes tune on this engine is:
.045 in from flush Hsn
.045 out from flush Lsn
.030 in from flush, idle screw
6mm restrictor
GRP 5 plug ( I run a GRP 4 plug)
2035 GRP pipe
The engine will run between 150 to 190 degrees(nitrotane,30%)
Good Luck
02-11-2009 | 03:09 PM
#918
Miller Time, yes those measurements are in inches, NOT mm.
The only one that is protruding is the lsn, it sticks out from the throttle ball mount.
The other two are measured, from flush to recessed (below the surface)
It should just need minor tuning from those settings
(air density,temperature,clutch springs etc.)
Good luck
Tom
The only one that is protruding is the lsn, it sticks out from the throttle ball mount.
The other two are measured, from flush to recessed (below the surface)
It should just need minor tuning from those settings
(air density,temperature,clutch springs etc.)
Good luck
Tom
02-11-2009 | 04:55 PM
#919
Miller Time, yes those measurements are in inches, NOT mm.
The only one that is protruding is the lsn, it sticks out from the throttle ball mount.
The other two are measured, from flush to recessed (below the surface)
It should just need minor tuning from those settings
(air density,temperature,clutch springs etc.)
Good luck
Tom
The only one that is protruding is the lsn, it sticks out from the throttle ball mount.
The other two are measured, from flush to recessed (below the surface)
It should just need minor tuning from those settings
(air density,temperature,clutch springs etc.)
Good luck
Tom
02-11-2009 | 05:38 PM
#921
Joined: Aug 2007
Posts: 4,835
From: Birmingham Alabama
Thanks for all the replies everyone I am still trying to decide, not ready to pull trigger just yet. Wouldnt you know as soon as I take interest in something the price goes up. The promo kits were on sale for 369.99 before discount at amain and now there back up to 445.00!!
To save up to $65 on your next order, enter the following discount code into your shopping cart before checking out.
If your Order is Between:You Save
iscount Code:$75.00 - $149.99 $5.00RCFEB95
$150.00 - $249.99$12.50RCFEB912
$250.00 - $699.99$25.00RCFEB925
$700.00 + $50.00 RCFEB950
http://www.carolinasrc.com/Webstore/...idproduct=8834
http://www.carolinasrc.com/Webstore/...idproduct=8766
Not that it helps to much but whatever helps a little....
02-13-2009 | 12:47 AM
#922
Tech Adept
Joined: Jul 2007
Posts: 151
From: Syd, Australia
Jonro, Hate to tell you this, but the tune was off on that engine.
The piston has been cooked, and detination from being lean,and more than likely the lean condition has hammered the rod bushing out and changed the compression and timing, which in turn burnt the glow plug out.
I would not salvage anything out of that engine other than the carb and head!
Adam Drakes tune on this engine is:
.045 in from flush Hsn
.045 out from flush Lsn
.030 in from flush, idle screw
6mm restrictor
GRP 5 plug ( I run a GRP 4 plug)
2035 GRP pipe
The engine will run between 150 to 190 degrees(nitrotane,30%)
Good Luck
The piston has been cooked, and detination from being lean,and more than likely the lean condition has hammered the rod bushing out and changed the compression and timing, which in turn burnt the glow plug out.
I would not salvage anything out of that engine other than the carb and head!
Adam Drakes tune on this engine is:
.045 in from flush Hsn
.045 out from flush Lsn
.030 in from flush, idle screw
6mm restrictor
GRP 5 plug ( I run a GRP 4 plug)
2035 GRP pipe
The engine will run between 150 to 190 degrees(nitrotane,30%)
Good Luck
I put over 20 ltrs of fuel through this engine without a hiccup, unless someone sneaked into my house during the night and totally messed with me needles thats the only way it could have run lean, which it wasn't.
02-15-2009 | 05:13 PM
#925
I got a half gallon through my GRP tuned and its really coming alive. We had a test and tune day at the track and I was getting 11 minutes @ 160 degrees. I know it will get 12 minutes once it gets broken in good and race tuned.
02-16-2009 | 07:20 AM
#927
I have had 3 of these engines and they all seem to run around the 200 mark 190 to 220 with pleanty of smoke out of the pipe. Tuning to temp can be dangerous. Tune to smoke and performance and use temp as a check just to make sure you are in the right direction.
02-16-2009 | 04:47 PM
#930
Tech Adept
Joined: Oct 2004
Posts: 173
From: Beaumont, CA