I will be using a reputable tuner to tune my IX MR. My question is what to expect and is reasonable and unreasonable for my whp and tq. on a dynojet. Now I am just looking for ballpark I don't expect to get an exact number. Parts and conditions. I have in apexi intake, Buschur licp, O2 housing, dp, tp, and greddy Ti-C, Hallman MBC, Walbro 255. Conditions 93 octane and temp should be in the 60's. Hope this is enough info to give me peace of mind when I get tuned.

 

325 hp and 310 tq (conservative).

For comparison, I put down 293 hp and 291 tq on a DynoJet with only a tubular manifold, O2, DP and custom tune w/ ECU boost control @ 22 psi.

 

Don't Dynojet's tend to read a little lower than some of the other dyno's also I will probably run 23-24 lbs of boost if that's not too much?

 

DynoJets read higher than Mustangs or Dyno Dynamics. Don't be surprised if you see 350 hp, but expect less. Good luck.

24 psi should be fine, but you'll sacrifice timing. My method is to sort of ride the compressor efficiency and run higher boost down low where the turbo can handle it easily and then constantly taper to the top. It has been effective ... nice torque down low and the turbo doesn't run out of breath up top.

 

Thanks I got the dynos mixed up. So your saying 24lbs at peak and then taper to say 19 or 20?

 

Besides dyno numbers (325-350HP&TQ on DJ), you should expect (and demand) low knock counts. Random counts of 3 and less or better.

 

Thanks Humbolt County I will keep that in mind about the low knock counts. What about the boost tapering?

 

The taper you mentioned is close to what I run. But, you can't really dial in taper with the Hallman BC you have. Set it for about 24 psi on your gauge and let it hold that as long as it can. Defi's often read a little high, so that 24 psi will likely be 22.5 or 23, which is good.

 

Good because the reason I am getting this tune now is because after I added my licp and O2 housing and the temp dropped outside my boost hit 25 1/2 lbs and then fuel cut. Scared the chit out of me.

 

May I ask you this Reputable tuner is.. Just curious because maybe I can relate my experience with them so you can know what to expect.

 

???

 

It says your from chico I am from NOR CAL also I was just referring to a popular place humbolt county around chico that's all.