boosted Ser spec v 3rd gear pull at 13psi

[XenomorphLV426]

fuck that's beastly. 

[Dominicanboi1]

what kind turbo u got?

[nightriderr45]

@Dominicanboi1 That was a turbonetics t3/t4 50 trim, i got rid of it and upgraded to an sc61

[Chris17psi]

@Trav4011 Ahh... Yes- I've heard of this "rod/stroke ratio" before, especially with the QR. So if the rod was LONGER, and the stroke kept the same, that would be a better setup for keeping the motor together at those high rpm's? (BTW: now I know why your name is familiar to me!-- it seems to be all over the Sentra forums)

[ranmas2004]

8000 RPM!!! DAYUM!!!

[Chris17psi]

Watching that tach max out like that had me wincing and waiting for the inevitable POW! of the rod(s) divorcing themselves from the block. Seriously though--yeah i know the 07+ cranks are good and balanced and all but,that motor still has a 100 mm stroke. That is ALOT of stroke when compared to other engines...and a HELL of a lot of stroke at 8K rpm's. Team RTR's racing B15's QR showed signs of stress cracks in the crank from high rpm's of around 7500...that nugget of info is echoing in my brain

[Trav4011]

@Chris17psi RTR was using the old 4 counterweight crank.. and that's the reason that you saw a lot of the problems with stress cracks/ovaling of journals. The new 8 counterweight crank can spin to around 7800rpm safely.. The stroke isn't what kills this engine.. it's the combination of short stroke/short rod (1.43:1 R/S ratio). But, that's another subject..

[oerllikon2]

So what else is done to this? What kind of rods and pistons?

sick car man, Mine is still NA but theyre fun even then

[brich220]

So these are goin to be my mods for the head work arp head studs bc springs and retainers ajusa headgasket port and polish and i currently have the jwt stage 1 cams. im trying to make it to 450whp on the lowest boost possible mayb 16-18 psi so i can prove to all these lames in my city u dont need big boost to go hard

[brich220]

what up dude i have an 2006 spec v with cp pistons manley rods for my turbo set up i was on the dyno two weeks ago on abt 16 psi making 388whp and 372tq and then i noticed my head studs lifted cuz i was running the ajusa ones that claim to be better than stock so i just did my turbo back exhaust a few days ago now im goin to build the head port and polish and do the bc valve springs and retainers can i safely rev to 7200?

[nightriderr45]

thats in MPH

[XxlargemanxX]

km/h right?



[gordysuggs]

its crazy what 13psi can do i saw the vid b4 turbo slow as hell but now that thing can move i wish my camaro would rev to 8000 like that but its fun having low end torque though

[sabalink]

What BOV you got?

[namanp]

holy shit, mad impressive 60-80 pull is sick. wasnt expecting that from a fwd car

[FreakyKing2]

wear your seat belt!!!! lol BTW you red lined the fuck outta it

[nightriderr45]

@FreakyKing2 it's built for it.

[the1whoB34T5]

@nightriderr45 Built not bought ;)

[SitBackAndChillAx]

@FreakyKing2 Im pretty sure thats his airbag light lol he prolly has an aftermarket steering wheel w/o the bag.

[john101dsc]

@FreakyKing2 that was actually the airbag light on the dash not the seatbelt light

[SDphantom29]

For all of you asking about the crank, it's very likely he's running the 07+ QR25 crank which was forged vs the crappy cast crank for the older QR's. If it isn't the 07+ crank, then he might be using the SR20 crank which fits in the QR25 block with some modifications. Aside from this, I believe you still need to change out the valve springs and possibly cam if you're looking to rev that high.

[nightriderr45]

@SDphantom29

07 crank with 350z valve springs

[Black6969Out]

so i take it your sitll running the qr right?

[nightriderr45]

@Black6969Out

yea still runing the qr

[ralliplane]

What do u did to ecu to pass over rev limit??? Mine doesnt do that and im having problems with mass sensor, cant full throthle...!!!

[nightriderr45]

@ralliplane

i sent my ecu out to technosquare and gave me a custom map with a higher redline. If you cant go full throttle then it's the sensor of your TB, if it's the maf sensor it wont allow u to go past 2400 rpms which is in limp mode, meaning u need a new maf sensor or try cleaning the sensor

[KsEskater19]

what kind of crank do you have

[nightriderr45]

@KsEskater19

07 crank

[netsrvcs]

CHeck out my 3rd to 4th pull

[netsrvcs]

I have a 03 spec and a turbonetics 50 trim too, i need new tires i break loose to easy, check out my 40 to 70 pull.

[insan3ss]

good shit man.

[BoostMonsterSpecV]

wow man 8k...arent u pushing the limit? i thought the crank couldnt handle it.....i thought 7XXX rpm was the safe limit?

[nightriderr45]

@BoostMonsterSpecV

i have a different crank

[BoostMonsterSpecV]

@nightriderr45 what crank? sr20?....im sure ur not using 07 crank right?cuz it was proven and dynoed to have less hp and its too heavy

[julzrich3]

@nightriderr45 where did you buy your crank from? ive been looking everywhere but i cant seem to find it.

[nightriderr45]

@julzrich3

dealership $400-475 shipped

[julzrich3]

@nightriderr45 thanks alot! so does it give a higher rpm range without hurting your engine?

[SuperBeatnuts]

NICE

[red03specv]

people dont realize how much power the spec v can handle...sick

[red03specv]

very nice im building by spec v right now for boost besauce of past piston ringland failure.

my goal is 350whp abound 10-12 psi.

i wanna send my ecu out to get reprogramed for the higher redling but idk much abou it.

[ttusandman]

that's definitely sick!!! I have an 03 specv and am in the process of building first to boost... what turbo kit setup you using for 13psi?

[nightriderr45]

it's a mix of parts but the turbo is a turbonetics 50trim

[perumerican]

Damn!!!

Thats sick...

I have a 08 Spec V... does anyone know about any upgrades???!!!

[nightriderr45]

thanks.

For starters, the ebay header and midpipe is good. it showed a gain of about 10whp or so when tested by a specv forum member.

[shonzy7]

what changes did you have to make in order for the car to be able to handle an almost 8k rev limit?

thanks man sick spec

[FoxRacinf4]

@perumerican treadstone turbos has a turbo kit out for it now i have the same car as you i just boosted it, only problem is you gotta change the intake manifold ours doesnt hold up to the air pressure I cracked it first day

[RniceSpecV]

nice bro 13psi thur 8k dam i hope its built lol, we need to run dude im bored here in gayonne lol.

[nightriderr45]

^ lol, it's only built with OEM parts, did some research here and there but ima build it with aftermarket parts sometime in spring. Yea man u been MIA in gayonne lol.