Riva/anyone what are the A/F ratio numbers on a stock RXP at idle,5000-6000 RPMS and wide open 8100 also what are the A/F numbers on your stage 2 kit. I am running a stage 2 kit at this time and would like to check my A/F ratio.Todd P.S. Thank you Mark Sheffeild for all your help.

How will check your A/F ratio? The original ECU will compensate adequately for stock through "RIVA" Stage II modifications for RXP's, RXT's and GTX-SC's.

I am checking my A/F ratio with a Inovate LC-I.

Do you suspect there is a problem? As I stated before, the stock ECU will compensate more than adequately for modifications up to our Stage II package.

Turbo Todd:
Where do you place the sensor sonce the exhaust is in the water. I use the Innovate for AFR data on the car and monitor on the fly; how do you do this on the water?
Regards,
Jay

Riva yes I have a problem the ski hesitates between 5000-6000 rpms and slowly builds rpms to 8100 rpms. I only have this problem when I cruise at 5000-6000 rpms for two four min and then open the throttle wide open ski lays down for a few seconds and slowly builds to 8100. JPA 1300R I sent my pipe to Rude Performance in CAL. He did a great job.Yes you are right it is a double wall pipe.If you need his number I will find it for you.Todd

When the ski "lays down" have to left off the throttle completely and then punched it to see what happens?

A/F is 11.3 to 11.4 for stock, Stage I and Stage II at those RPM's.

What are your exact modifications?