James
Well-known member
14b
3in exhaust no cat
Rest is stock
Home made mbc (been used for years)
I know most people creep and spike at the top end of RPMS, but after re-hooking up my MBC, set to 13lbs, it I do a full pull starting from say 2000 RPMs the boost will climb as it should to about 10lbs, when it get in the power hour of the gear it will spike to 18lbs then settle back down to 13lbs in the upper end. What could cause that?
Obviously it has something to do with the MBC because if I run wastegate pressure it will hold 10lbs till the upper end when it spikes near redline.
But if I put the MBC on a different car it doesn't do the same thing as on my car.
3in exhaust no cat
Rest is stock
Home made mbc (been used for years)
I know most people creep and spike at the top end of RPMS, but after re-hooking up my MBC, set to 13lbs, it I do a full pull starting from say 2000 RPMs the boost will climb as it should to about 10lbs, when it get in the power hour of the gear it will spike to 18lbs then settle back down to 13lbs in the upper end. What could cause that?
Obviously it has something to do with the MBC because if I run wastegate pressure it will hold 10lbs till the upper end when it spikes near redline.
But if I put the MBC on a different car it doesn't do the same thing as on my car.
