XRAY - Model racing cars

I've spent much time with adjusting the low-end needle. The setting is fine. I'm using a JP-3 pipe.

I've tried switching from 1.0 to 1.1 clutch springs using the 1.71 clutch shoes...still have a small delay with the 1.1 springs.

Any suggestions would be greatly appreciated!!!

Thanks,
Greg

try using the JP-1 pipe or the RB 9863, or Novarossi 9853. Other than that I would go back and redo you needle settings: slightly lean on the bottom end and slightly rich on the high end needle.

then look on the .21 andunder engine idle. i would say that is one of the greatest forums for motors that i have been turned on to.

... sorry forgot to mention the RB 2045. If you can try them on with a long smooth flow header I think you'll like the results.

Thanks for the input...I think I'll try the 2045 and 98mm header.

Greg

always had good luck with the RB 086 and long header on my S7. used 1.1 springs on the clutch. once I got the needles right it would idle all day long and not skip a beat, temps right around 220. little short stroke S7 is a monster out of the hole once it is dialed in.

There is a wealth of information on the RB forums, helped me out several times. I still go back there and snoop thru the new and old threads.

you might wana look at the 2020 +192 or 8 manifold gives way better bottom end and very little difference on the fuel although the 2045 is a stronger pipe and they aint cheap