EDITED the Thread since it had old information. Here are the results:

NOTES: The car was in Snow Mode for all the pulls, the machine is a DYNOJET.

BEFORE: Intake + Midpipe + Exhaust



AFTER



TOTAL GAINS 12.5 WHP or 4.77 % HP Increase


UPDATE (VIDEO):http://www.youtube.com/watch?v=faCFj-lt0iI

 

291WHP with or without PPE headers?

 

the black emblems give you gave you the most HP! lol

nice pulls so far.. that'd be awesome if you could break 300RWHP with the headers!

 

If you read carefully all runs without header. As he yet to get it till next year. If I remember correct you suppose to just threw it into sport mode at 4th gear not start at 3rd?

 

without, just edited the post so its more clear

 

from digging some info on CL its supposed to be in Snow mode on 4th gear.

 

Those are some impressive numbers with exhaust and intake. I thought those numbers included PPE because the title said before and after PPE headers.

 

looking forward to your results when you get your headers in.

 

265 is pretty standard for a stock 350... it's tough to know how good the runs are without seeing the full plots though... the dyno should be applying some sort of correction factor (SAE usually) to adjust for temp, humidity, etc.

don't see mods in your sig, but if you had intake and an axleback I'd expect 275-278...maybe 280ish with a midpipe too or a full exhaust.

4th is the correct gear to dyno in because it's 1:1 for the transmission... snow mode is so it's less likely to downshift when you floor it.

 

Fsport intake, megan midpipe and tanabe axle back.
I was expecting more than that (264), but Im gonna go probably 2 or 3 times more before putting in the headers. I think caymandive got 270 with almost the same set up that i have. (joez intake, megan midpipe, and tanabe axleback)

 

Really anxious to see the dyno numbers after the PPE headers are installed.

Juice 14: Do you have a 250 or 350?

Thanks for posting those numbers and keep us posted once you get those nice headers installed. =)

 

81 degrees isn't helping either.

He has a 350. I seriously doubt a 250 can push 250+WHP

 

yea its an IS350. I can really tell the difference between 81 degrees and upper 60s at night. I might do another pull tomorrow morning, Im hoping the weather is better

 

well, again, the dyno operator ought be applying a correction factor (SAE most commonly) that takes the temp into account... without seeing the full sheets though we can't see if he did that or not

 

Have shop give you a copy of your runs on jumpdrive. Tha way you have them to display & compare as you like.