Thread: Stage 3 valve float??
08-24-2008, 09:19 PM #1
Stage 3 valve float??
Ok we just installed the new motor and now I have valve float (it seems to me anyway) or a 8400 rpm miss. I put on Rivas valve train upgrade kit off my old motor should I have gone with a new one? Heres a list of mods. Riva ECU, Riva Valve train upgrade, 50# injectors, Rude SC, catch can, Riva Gen 2 IC, GH water box, Riva rear air, 15/19 impeller, adj nozzle. It runs like a rocket up to about 8200 than starts missing which I'm assuming is valve float. Any ideas?
Last edited by mstennes; 08-24-2008 at 09:29 PM.
08-24-2008, 10:04 PM #2
That's not valve float.
Try installing a fresh set of plugs and see what happens.
08-25-2008, 12:02 AM #3
eta, could the plugs go bad that fast? less than a hour.
Last edited by mstennes; 08-25-2008 at 12:03 AM. Reason: memory loss
08-25-2008, 06:04 AM #4
- Join Date
- Aug 2006
- Gonzales, La
I've heard of plugs going bad on fresh engines, probably due to contamination, slight oil consumption before rings seat, etc... Plus, these engines are especially prone to fouling plugs for whatever reason. Also, I've run the Riva ECU with stock valvesprings up to 8450 rpm. It's not recommended for long periods, but it didn't float them either.
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