this is my first post but i have been reading for a while.I took my truck to get it dyno tuned yesterday and was a little disapointed.It is a 2002 5.3 whipple charged,8# boost,207,548 cam motion cam,crane dual valve springs,
dynomax headers and meth injection.the most he could get out of it was 326 rwh and 404lbs. of torque.Does this sound right?My truck is a Z71 with 373 gears and 33" tires.What should i do next?Thanks for your replys

 

Your going to lose some hp with those tires and it being 4wd.
Are you still running the Whipple electronics and the auxillary injectors?

 

i have 42# injectors and custom tune

 

I've learned that you can't always go by what the dyno says...when I went a month or so ago they told me I had 210 rwhp and 270 tq with the mods in my sig, minus the e-fans. The next weekend I went to the track and ran 15.6 @ 89.5 mph, before my new PCM tune even had a chance to learn itself. Not killer numbers by any means (I thought the speed was pretty good for a 4wd truck with 285 All-Terrains), but better than what the dyno said.

 

we've all been there man. My first suggestion would be to get HPTuners and do a ton of scans and see if you are getting KR then get it on a WB and see where your A/F are. Its going to be a culmination of things so get working on it. You may need to open up your exhaust, take some fuel out, add some timing and adjust your meth.... for starters

 

thanks for your reply
my tuner said i was at 12 to 1 across the board with the air fuel mixture and i think he ended up at 20 degrees timing before kr.It seems to run pretty good but maybe i am expecting too much

 

What kind of dyno? Are those 2wd numbers? Converter locked?

 

those number are dynojet in 2wd.the converter locked