What are the ideal warm and cold controll presures for a 930 motor.

 

Brian leask could tell you, just let him know what mods you have and he can tell what pressures you need to adjust on your WUR. He has been very helpful so far with mine. I am part way there but had to stop for a while due to the hours I am working this month and the fact that I had to send my targa top off to be rebuilt it kept trying to blow off whenever I would try to log an AFR run on my lm-1. should be back to adjusting every thing in a couple weeks.

 

If you are wanting stock numbers then drop me the number of the WUR and I will tell you what spec should be.

 

Thanks guys. I have been playing with the WUR and have all my warm and cold pressures good. I am still haveing trouble with my A/F up top. Once I get to 5000 rpms I go into the low 12 and it keeps going up. I have modified fuel head ( imagine auto). I am now thinking about the fuel pumps. I know they are both on, I can hear them. My warm pressure is about 3.2 on the gauge. When I rev the motor it stays steady. I had a new rear pump put in acouple of years ago. The front pump might be original. How can I check each pump? I think if it is any one of them, it is the front. Can it be checked out of the car or should I bypass the rear pump and see what pressure I hold. Thanks for the help
John

 

I would bet you a buck that your pumps are fine. You are chasing a common problem with CIS and the WUR - leaning at higher RPM on a modified motor. There is TONS of info on the CIS on this site as well as Pelican. Learn how to modify the WUR.

 

Brian is a big help i would log a data run then e mail him the info then he would tell me what to adjust then I would log another run etc. Mine is still running way too rich but I also am having some waste gate issues to work out first.

 

Does Brian Leask have a website? Seems like he has a lot of info... just wondering if he has a site where we coudl learn more about him and his projects.

 

http://members.***.net/930wur/

 

Ok i think i might have found a problem. My motor is based off a 77 3.0l. Now it is a 3.5 with 8-1comp. The last 3 numbers on the WUR is 112. I am told by my mechanic that is a 3.0l WUR. Do I need the 3.3l WUR? I am going to ask Brian to see what he says. Thanks John