I went to a dyno shop today and had my first run. It pushed 152.4whp and 151.4 wtq @5psi and it's running super lean (18.0 a/f ratio)

The guy over there told me that my fmu might not be working right and probably my fuel pump also, so I'll check those tomorrow. So I'm not going to be boosting until it's fixed.

You guys have any idea why it's running super lean?

 

rhyz and HK will fix it and you'll shortly be pushing 200whp. i know it!

 

Thanks, just sad. But I was expecting like this to happen.

 

Dam dude thats really lean

 

check ur PM AZN!!

 

Thanks, probably I'll call you tomorrow?

Btw, after my dyno run, it remind me of you right away because it's similar problem you had.

 

nevermind....i just checked ur PM....yall tommorw will work after 4CST!

i had the same problem! lol....u should be back on the road in no time....hopefully

 

^Cool, thanks.

 

yeah ill be up 10WEST witch is 12CST......ill be up

LOL....using the fourms as instant messeger....not very instant....but yeah ^^^

 

Im pretty sure i have the same problem super lean

 

First off which FMU disk are you using? Any and all fuel system info would help.

 

Using Blox 12:1 FMU and TRE 255lhp fuel pump.

 

so would a conclusion to my grad school essay. i'll shut up now.

oh, and i find it highly upsetting that i know every single component of Azn's turbo, and I could probably recite the price he paid for every item. now we just need to get that sumbish working right!!

 

Well, assuming FMU's normally do provide acceptable AFR ranges (and I can only assume they do because I don't remember anyone who runs an FMU setup mentioning WBO2 readings), they were probably right. Either the FMU, fuel pump or both are crappin' out. Is this only happening at 5psi or does the AFR gradually raise building up to it? like 15.0 at 4psi or is it normally rich then shooting up? Is there noticable knock? Are you certain the WBO2 was calibrated correctly? Tryin' to think of variables to rule out, but I'm also writing a lot of papers all week so my brain's kinda in left field....

 

Any exhaust leak will register leaner than normal AFR's, b/c of oxygen getting into the exhaust..