New Super B Single not Boosting over 15lbs.
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New Super B Single not Boosting over 15lbs.
Recently installed the super B single to my 97 cummins. Motor is stock except for the pump is rebuilt and modified. Had a dyno run after I had put 300 miles on the new turbo and it put up 203 RWHP/468 FT-LB. Motor is a 180 hp stock. I have been watching my boost guage when hammering down on the throttle and I'm only building around 15lb of boost with the egt's getting over 1200 in a hurry. The truck will produce lots of smoke during takeoff boosts comes up fast with the super B but never gets above 15lb. I was hoping that we the fueling I have now I would at least be building over 20lb boost like the HX-35 stock turbo did. So before I put a new set of injectors in I would like to dial in what the problem is with my super b not producing that much boost or whatever issue I might have with the rebuilt pump or stock injectors. Please Help!
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I'm not sure how my pump is modified. The pump has been rebuilt and it dyno's higher than stock. Haven't checked my timing. Going to check out my plate today and see if it's the stock plate or a different one. I really hope my wastegate is fine. It's a brand new super b and I woudn't suspect that the actuator would be weak already. I noticed last night coming home from a beer run when I got on it in 2nd gear and the boost gauge went up to 10lb, stopped, but I could continue to hear to turbo spool up so maybe I have another air leak to track down. How is the best way to check for air leaks? Will also try plugging the wastegate and see what happens.
---AutoMerged DoublePost---
Well I'm a real rookie! Found a boost leak on the first boot, actually had to look underneath the boot to notice. Building a little over 20lb of boost now. Does that sound about right for boost with only having a mild pump mod (most likely my plate is forward)?
---AutoMerged DoublePost---
Well I'm a real rookie! Found a boost leak on the first boot, actually had to look underneath the boot to notice. Building a little over 20lb of boost now. Does that sound about right for boost with only having a mild pump mod (most likely my plate is forward)?
Last edited by Bdog57485; 02-02-2012 at 04:55 PM. Reason: Automerged Doublepost
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