Originally Posted by
Maximo
On my modded JPX 21's we get about 11 minutes with a JP4 ...very good track pipe for my engines...broad powerband and good mileage..... 086 lets them really scream, but runtime is not quite as good.......053 does nothing for them, feels like less power everywhere with a real noticeable lack of top end RPM...
You know mines non mod yet i only tried an 053 for a few tanks after i found a crack on the 086 i was using. I ran the jp4 for a quart back in august in buggy and definately did the job but maybe too good for the fact it was so strong. I might be switching back to the jp4 on my jpx so i can use the 086 on my rb and use my o53 on anther mill i have. I just cant wait to afford this new ofna jl/k9 or whatever...After the holiday hopfully