so i took my car out for first time of year yesterday over the winter i installed test pipes and motordyne isothermal plenum spacer, other mods are jwt popcharger hypertech programmer and hr y pipe previously installed.. car sounds awesome but has no *** whats so ever drove it all day no change.. ended up losing to a bolt on charger and wrx both of which i beat last year (unchanged) with no real competition so something is screwed up.. any ideas??https://my350z.com/forum/images/smilies/suicide.gif

thanks!

 

When you lost, what were your times, what times did you run last year?

 

Did you retune after the intake/exhaust parts were installed?

Are you still running the old, sat all winter fuel?

 

havent ran in 1/4 yet just playing on back roads, i just put some gas in it yesteray afternoon ran it down as close to empty as i could no i just did the tps reset they give you with spacer, should i just unhook negitive and try that or uninstall and reinstall program?

 

You really need a tune.Meaning,full dyno tune.
Got to be running lean for starters.

 

think it would be worth getting osiris mail in tune? closest place is in p.a that would do anything with it watkins glen is this coming weekend would like to do something before then just cant believe it would lean out that much to really lose power it a completely different car getting tire put on today then gonna try unhooking battery then uninstall program and see what that does

 

still no cel though if it was that lean would think it would throw code

 

Probably need a tune for sure,

But as for the endless amounts of variables, doing some canyon runs i dont think really can point to you having "lost power"....

 

mine never threw a code when lean, and a mail in tune is not optimal... it will work though

 

At least with uprev you can get the software to check everything about your car. If the tune doesn't fix it you might be able to find out what's causing it.

Have you checked for vacuum leaks around the spacer?

 

its most likely not a mechanical issue.. and yes, a canned tune will help enormously.

 

ill go check now

 

noticed with key on engine off had a very high pitched whine did tps reset and it went away im thinking that may have been the issue damm rain needs to go away to know for sure

 

Do you have a roadster with a broken/missing top?

Are your wipers broken?

 

A CAI by itself will cost you power, it needs a tune.

 

pretty sure problem was solved with reset just went for a few laps around the block seems to pull hard again wouldnt even set you back before sure as hell hope so lol any input on innovative tuning out of buffalo ny?

 

I think I've seen them online before. Do they offer uprev? Try 'em out and report back to me LOL.

 

wonder if you can get one from uprev directly and they charge for your core until it is returned to them.....

 

haha gotta decide whether to do can tune or give them a shot i guess..its runnning much better now but still something id like to do soon

 

uprev has them listed as dealer/installer