Originally Posted by
BigNasty
thanks to everyone for all their info on this thread. i got my tuned running like a rolex... still needs about 10 deg cooler i think, but i went 10minutes last night in the main with a little left over... smooth power, no lean bog, no rich low-end (got rid of that surge when i let off at the end of the straight) and it idles on the box long enough to smoke half a cigarette without loading up at all.
nice ..they do run good when there tuned right especially after about the 2 gallon mark when they really start to loosen up and go ....
Originally Posted by
Frank L
The temps defiantly drop 15-20 degrees after they are fully broken in that seems to be around a gallon. Every GRP I have run did the same thing and then shortly after they are broken in the front bearing starts leaking and you have to drop in another, But after that I have seen them go well into the 9-11 gal mark before the top end seems to suffer. Too bad they are done. GRP made a great little engine. I see A-main pulled them from their website, not even listed anymore. Time for a change.
+1 changed both my bearings at 1 gallon mark with tko's 5 gallons now and holy hell this motor was even better than i thought ....loving grp"s hoping to try out some boss engines next year
Originally Posted by
Toiffel
What makes the dynamite pipe so different from the grp/mugen pipe different??? Aren't they both 2053 ??
1st is the r&d on the flow characteristics..smoother to increase overall performance and gas milage
2nd i believe the DYN 053 is a 2 chamber pipe....the 2053GRP is a 3 chamber pipe...more grunt from 2 chambers ...its less restrictive ...will be trying the 053 on my standard grp next week when i break it in ....
Originally Posted by
Hate2Looz
Well, it went to its first race yesterday and I don't know if something if messed up or if this engine is supposed to run this crappy until it is fully
broken in but it wouldn't get out of the hole to save its life yesterday.
I am one TURN out from factory on the low side, and still at the factory settings on the high side and it still will NOT smoke down low. Temps in the
190's, NO bottom end. Tried leaning it from factory, no change. Seemed to get better with more fuel but I went for the smoke just to keep it alive for now. Gotta get it to my LHS/GRP guy for proper tune.
P.S. It has one gallon of fuel on it now.
could be acting irratic because it may not be fully broke in yet ....once you get the tune right ...you really should be adj an hour here an hour there ....just getting it just right ...but mine has held a tune once tuned ....every race day ive ran it .....
Originally Posted by
Integra
running lean on top and fat on bottom tend to starve the motor of fuel it Needs on top end and you over compesate on the low end to get it to idle right with that Jacked down High speed and the Low speed being so far out......IMO ninja's and GRP's need a Fat top and lean bottom.
thats like i like my women and my grp,s fat on top lean on the bottom +1
:no d:
