Gm 3.5in maf HX35 tuning help

[Jpaulson64]

So i recently just got my hx35 setup on my car and im trying to figure out this gm maf. Mods list:stock block, stock head, front mount intercooler, tial bov, 2g mani bolted to a hx35 with dsm flanged bullseye housing, tial 38mm mvs wastegate with 10 psi spring running spring pressure, 550 cc injectors, gm 3.5 in maf and ecm link v3. Ive been messing with the maf comp adjustment and cant seem to make any changes. My problem is when cruising afrs are right around perfect 14.7-15.8, but no matter ### rpm im at as soon as i go wot afrs go straight to 10.0 and i cant seem to get it to change. Note this is in an auto 1g talon. Car also feels like its being held back or hesitating. Any info will help

 

[Twinturbo120]

550 injectors, are you joking?

 

[ErikTande]

That's a huge turbo for 550cc injectors, but if you're sure you're only running 10psi, they should be fine. Post a log and someone here should be able to help you figure it out.

 

[gsexxx]

Posting a log would really help us see what's going on. Like stated above, you need larger injectors for that turbo regardless of what fuel you're running or plan to run. This is assuming that you don't plan on only running 10psi on a hx35.. 550cc injectors may even be to small for 10psi on that turbo.

 

[Jpaulson64]

Lol yea i know 550's are small thats why im only running 10 psi come on guys!And my injector duty cycle is actually pretty low for those injectores, but that turbo doesnt really come alive till about 20psi+ and i forgot to add ill post a log after work

I actually plan on running ID 1000's or higher if anyone has any forsale?

 

[gsexxx]

Do you plan on running pump gas or e85? Also, is the it reading the 10.0 ration in link or on your wideband?

 

[Arthris]

Check the compressor map Im pretty sure u might be at the surge line at 10psi. If u are find injectors. Ull just hurt the turbo and engine when u run it surging the compressor wheel

 

[Jpaulson64]

My wideband is getting that reading and id like to run e85 but pump gas most of the time because im a distance away from e85

 

[stunt2]

how good is the wideband ? had the same isuue on my LC1 and turned out its O2 sensor was knackered

 

[Jpaulson64]

Its a brand new aem so i sure hope thats not the problem but my estimated afr on the log is reading like 9:1 also.

Ill hurt the turbo even with surge ports? Cause even at cruising speeds and part throttle im getting a little surge So theres really nothing i could do or is there?

 

[stunt2]

change injectors and turn up the boost