Thread: Riva Dyno Testing
10-06-2005, 01:01 PM #1
Riva Dyno Testing
hope jerry doesn't edit my link lol
Looks like it shows the A/F ratio and they seem pretty safe.
I know we had a previous thread about the engine running lean with the various stages.
I wonder how much lower the waterbox mod makes it.
What would be a damaging A/F reading less than 11 ?
10-06-2005, 01:21 PM #2
The waterbox mod does absolutely nothing for you until you port the head.
I noticed no difference with my basically stock ski when i did the waterbox mod. Sounds good though
10-06-2005, 04:20 PM #3
Was your air filter customized then.
Wouldn't more air flow in need more air flow out ?
and doesn't the modded waterbox provide that ?
10-06-2005, 04:32 PM #4
I was running the Riva air intake at the time I modded my waterbox. I felt no difference in acceleration and I gained nothing on GPS.
I think the stock waterbox is perfectly capable of handling up to 8100 RPM's. When you start slinging your prop at 8400+ RPM's then you want to open it up.
10-06-2005, 08:19 PM #5
MIKE AND FRANK-
IT IS OCTOBER
IS THE 300 HP READY YET ?
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