does anyone have 300 horsepower at the crank. or close to it. what mods did you do, and how much did you spend? I know there are a few Coupes that claim to have 300 hp at the crank, any Sedans?

 

right here. dynod.

since then ive changed my JWT to a K&N panel filter. dont know if that makes a difference. i think my mods are on my sig.

G35s6mt/TSecu/350Z Springs&Struts/K&Nfilter+Z-tube/StillenDualExhaust /6WireGroundKit/KinetixHighFlow

 

Assuming 15% drivetrain loss, that would mean 260 at the rear wheels. I havent seen anybody get there with NA mods. With high flow injectors, ported heads, cams, test pipes, catback, custom ECU flash you could get 320 @ crank or maybe more, but $$$$$$$$$$$$.

Intercooled TT @ conservative boost (5-6 PSI) with timing retard, 11:5-12:1 mix, and good gas seems to spit out 380-400 pretty safe.

 

nuttyprof,

Did you get 260 SAE at the wheels with just the mods on your sig? If so, was it Dynojet?

 

Gathering from the numerous dyno data of the G35 and 350Z, 15% would apply if it were on the Dynapak dyno. DynoJet models are closer to 18% driveline lost. Assuming MT of course. For ATs, add 2-3% to the loss.

Having said that, we'll use 350Z as a point of reference in order to elminate the hotly debated 287 vs. 280 vs. 260 (between Z and G) debacle. A 350Z typically average 245rwhp on a DynaPak and 235 on DynoJets (both SAE corrected).

287hp * 0.85 = ~244 (DynaPak scenario)
287hp * 0.82 = ~235 (DynoJet scenario)

Having said that, I've dyno'd:
DynaPak: 251.6 / 0.85 = 296hp
DynoJet: 241.7 / 0.82 = 294.8hp
*note the two dynos were performed within 2 wks of eachother.

I've got a 2004 6mt (pre-LEV2). You can check my profile for mods.

I'm pretty sure Nuttyprof's dyno his car higher than 241 on a DynoJet. The 5AT guys are also in the ball-park with SocalTed, alagolfer and DaveO dyno'n at 247, 241, and 239 respectively on a DynoJet.

Assuming +3% loss from the MTs:
SocalTed: 247 / 0.80 = 308.8hp
alagolfer: 241 / 0.8 = 301.3hp
DaveO: 239 / 0.80 = 298.8hp

Again, do a search for their name to check their mod profile.


Clint (THX723)

 

i'm at that level. dyno chart flew out the window on the freeway, but i'll dyno it again if someone really really wants to see my #'s.

my engine mods are:
blitz sus intake
jwt heatshield
350z tube (heat wrapped)
crawford plenum v5
350evo bored throttle body (by proflowdesign)
xerd long tube headers (/w straight pipes)
jic y-pipe [temporarily removed because its too loud with headers/exhaust]
greddy evo y-pipe-back exhaust
unorthodox racing crank pulley
technosquare ecu reflash (tuned for mods)

.. other engine mods that dont add any power..
samco hoses, nismo thermostat, hks grounding wires

i was putting out 255 at the wheels @ 7000 rpm ish.

-phil

*** 2003 G35s 5at / Pearl White ***
*** Volk Racing / Falken / Tein / Hotchkis Tuning / Nismo / Blitz / Hks / Greddy / Xerd / Unorthodox Racing / Samco / Sparco / Alpine / Mb Quart / Sony ***

 

I should be rite up there soon.... Ive been trying to get my mod's done for the past 2 weeks at performance nissan for those in NY(Borla Cat-Back,UR Pulley's,Test Pipe's, 7 wire grounding kit) but the guy was on a pohotoshoot witht he procharged and greddy tt z's, then he said this week and today but hes puttin in the dyno (dynojet)... So hes like you know what, ill give you a free install, hook u up with a good price on xerd test pipe's, he said they're better than helix and kinetix? Phil, i saw you have the xerd straight pipe's how are they? He also said friday the dynojet will be up and ready to go and he'll give me a free dyno pull to baseline my HP before the mod's.... Yes, hes hooking me up, so worth the wait. I'll get the dyno up friday. Martin


Martin
2003.5 BS G35
Nismo Aero/Sport Package
Injen CAI
B+G Springs
ADR M-Classic 19's..

 

i dont remember correctly but you can find my numbers if you search my posts. it was at about 255 rwhp with an 18 percent drivetrain loss to equal about 300 hp at the crank.

G35s6mt/TSecu/350Z Springs&Struts/K&Nfilter+Z-tube/StillenDualExhaust /6WireGroundKit/KinetixHighFlow

 

hey sog35..

here are my performance mods on an 03.5 5AT:

Stillen Hi-Flow airbox
350z duct (thermal wrapped)
UR Crank pulley
Crawford v5 plenum
Crawford cats
Stillen dual exhaust
TS ECU
GroundingGear


Cheers, Ted
247rwhp


'03.5 Sedan 5a: BS/G, Prem, Aero/Body, Sport, Nav
Click for MODS or Vote at Online Showoff

 

Hey SoCatTed,

I notice everyone is still all over the board on what multiplier to use to get the Crank number...1.20, 1.18 and 1.17 I believe in this thread...but in that FL Dyno thread everyone was using 1.22 for the 6MT Coupes and 1.23 for 5AT Coupes...Can you or someone clarify what number we will call agree on.

I always thought the MT numbers were 1.15 and that AT numbers were 1.23 or 1.25...sometihng like that.

I am still trying to get in touch with my local dead beat dyno
:-(

John
03.5 G35 5AT 14.2 @ 96
7 Wire Grounding Kit
K&N CAI w/Injen Heat Shield
UR UD Crank Pulley
NISMO Mid Pipe
Crawford V 5.0
TS
02 Maxima SE 4AT 14.5 @ 95 (Wife's)
87 Mustang GT 13.2 @ 107