Ok so I have a 03 350z I plan on getting some bolt ons and a uprev tune this spring. I'm just wondering what type of numbers should I expect

Ark grip v2 exhaust
Berk hfc
Stillen grounding kit
Injen long tube cai
Motordyne 5/16 ISo plenum spacer
Light weight pulleys

I'm still debating if I should get headers are they even worth getting if so which ones would you guys recommend.

Also is there any other mods that I'm missing that you guys reccomend please let me know and please include a estimate of how much power I can expect

 

260ish whp. same as every other bolt on de z on the forum..

 

^ that's about right.

 

Don't put a lightweight pulley as your crank pulley, you will chew-up the keyway and destroy your crank.

 

Happened to me, luckily I just opened up the key hole on the pulley and dumped oil out of the hole...

 

I'm not sure if the kit I have comes with a crank pulley I have the unorthodox lightweight pulley kit that came with three pulleys I don't think it comes with the crank pulley

 

But are those pretty much all of the bolts I can get or is there something else?

 

Maybe not EVERY.


Btw you were behind my wife and I today going up church. Blue Dodge Nitro.

New wheels come in weds thursday alignment then going to CIN for Tune

 

i just got my uprev tune and dyno this last weekend, with all the bolt ons i got
281hpw and 260tq i have:
cold air intake, kinetix intake manifold, lightweight pulley, headers, cat delete, dual exh with x pipe and lightweight flywheel. nothing special but it is noticeable for sure. the biggest thing was the manifold that thing kept the power climbing.

edit: the headers changed the sound a little but for the most part they are a pain the ***!!!! to change unless you have the right tools. you will have to take the cooling system apart on the top and disconnect the steering boot would take 5-12 hours depending on your mechanical know how. but hey i did the whole exh sytem in 1 go so i figured hell while im down here.

 

281 is believable...with all the dynos I've seen...the key to all these bolt ons is the tune! A good tune is the difference between you hitting that 281 or the norm of 265-275 with those mods...

do you happen to have a baseline to solidify those numbers?

 

So what kind of dyno is that 281 whp on? I know that its just a number unless compared to baseline and gains from there, but the original Dynojet (248 whp on freezing day) I started testing on became unavailable when the business went under. So my switch to the dyno dynamics for testing the car was unavoidable, and run the best I could do for the follow up testing. On the D.D as you posted the car puts out 270-272 whp and 260 to 262 wtq on a 90 plus temp and very humid day.

So after taking to long to explain, how much gain can come from a specific tune instead of the OTS Cobb Tune on a RevUp with headers, Hi-flow cats and exhaust? I am just trying to justify the cost of a tune. Anything much less than 10 would be a probable no go.

Thanks for any upcoming opinions!

 

I'll let you know in a month or so once the tune shop here starts tuning I'll have art pipes, md 5/16th, bassani td exhaust, injen cai i baselined at 243/222 with just the bassani.

 

depends on the dyno.. you will make gains.. I have similar mods and gained 15hp with the tune after the mods.. not sure what I gained with the mods - no baseline.

 

i dont have the baseline for you either i had the ecu flashed to uprev and all i can tell you after the flash on its first dyno it was 260/240 "ish" give or take so i have no idea what the base line was with stock ecu programing. the big thing he had told me was the amount of power the intake manifold was producing it climbed and climbed untill 6,600rpm then its kinda crapped out. so from what the tuner had told me that thing was well worth the investment. (kinteix intake manifold)

 

Which one of the kinetix intake manifold do you have