djnc

iTrader: (8)

wtf?...how do we go from 300rwhp being the holy grail to easily achieving 400rwhp?...LOL!!!!!!!!

kalima275Z

iTrader: (4)

In for the weird thread, this is wacky.

RBlover69

iTrader: (2)

now guys if the man says its been done , lets not all jump his case. Would the kind man like to show proof. You would be the highest NA Z in the USA if you can prove it. So instead on bashing let him prove it first. DO you have a website with it and, is there more information on the engine many have already stroked and put cams and havent come up with ur power levels. Can you shed some insight. sir

infamous350

no way no how maybe in japan they got one or something. But i read up on the vq all day i would rather go Na rought but seemed u need to spend like 15k just to get 300whp

EM-EFER

iTrader: (6)

Please excuse BRETT@TPS. He has been smoking angel dust for a week straight.

laswyguy

iTrader: (1)

stock = 225-240 whp
stock + all bolt ons +tune = 260-270 whp
Stock + all bot ons + cams + tune = 270-290 whp, depending on how big a cam.
stock + all bot ons + cams + headwork + internals + tune = 300-305 whp.

That's it.. I have NOT seen any proof of any car making more than 305 WHP on a VQ35DE, on pump gas on a no bs dynojet.

Kwame

iTrader: (78)

The worst part about this thread, like so many others on this board, is that the orginal poster's question was never answered.

I don't know if it really can be answered at this point in time, but I do know Brett@TPS came no where near answering it.

Z1 Performance

iTrader: (564)

yep

there really is no way to fully answer the question as there is a range of parts you could use for a full out NA build. For some suggestions, click my signature. By the time its said and done with all my drivetrain mods (clutch/gears/diff), motor build (including machining costs, etc), you would be around $10k, with some money maybe left over even. I didn't obviously pay for labor costs, so factor that into your equation

SpoilsofWar

iTrader: (39)

I think a safe answer at this point is that 300rwhp is an attainable goal, and at the top end of the achievable N/A spectrum.

now back to bashing BRETT@TPSreports

laswyguy

iTrader: (1)

If I had to do it all over again, I'd do a set up my car like this for a street car.

Parts Labor Total
intake JWT 100 0 100
plenum spacer Motordyne 200 0 200
Headers Crawford 1000 500 1500
test pipes Any 175 50 225
exhaust Nismo 1000 100 1100
Cams Tomei 272 1200 2400
valvetrain+Ti retainers Fererra 1500 0 (included in cams) 1500
engine mgmt/tune UTEC 800 400 1200

So total - $8,825 for power mods.

Add a 3.91 final drive - central 20 for $500 + $300 for labor and you have a nice little track car.

I think this would result in a no bs 280/90 whp...So say baseline dyno is 230, you gained 60 hp, which is $147 whp per dollar, not exactly cheap but reliable.

JCSVT

"Large and in charge camZ!!!!!!!" Holy sh**!!!

gothchick

iTrader: (12)

I was reading somewhere a 4.1L / 4.2L stroker kit for the DE adds like 80 whp? You'd have to have all the supporting mods of coarse to bring it to life... 305 whp + 80whp = 385whp NA. Is that a reasonable assumption?

Brett@TPS

The issue with the VQ35 is the restrictive heads, and the upper inlet and lower manifolds. These restrict the motor from making large N/A horsepower numbers, but are less problematic when forced induction is used. The only way to make over 400 horsepower on the engine is to change both upper and lower pieces. Cam design is also critical to maximizing power gains, and it seems like the majority of profiles are not that aggressive in design. So the "laundry list" looks like this for 400+ : Built short block with 11:1+ comp, new upper and lower manifolds, cams with 12mm+lift, retainers, springs, valves, ported and polished heads, header, exhaust, intake, injectors, fuel pump, ecu management. Higher compression is needed for 495, with 13mm+ lift, ITB's and race gas and a few other pieces to run at 8500rpm. This is not a street motor at this point, but a race engine. $$$$ is needed for any of this N/A work, and most people would be better off just calling the local APS dealer and getting the TT kit.

HINZIR

here is your answer...i think?

http://en.wikipedia.org/wiki/JGTC

HINZIR

and here are the engine specs from

JGTC 300 series Z
http://urbanracer.com/garage/jgtc/teams.asp?tid=43

and JGTC 500 series Z
http://urbanracer.com/garage/jgtc/teams.asp?tid=24

for what it's worth...

Kwame

iTrader: (78)

At this point in time I would say No. But we will let you know in a few months

Kwame

iTrader: (78)

LOL... Did you even click on those links at all?

What you posted is completely irrelevant to the topic at hand.

HINZIR

yeah why?

i disagree..was trying to answer a question posted by you no?

"Originally Posted by Z1 Performance
ok - show me a single VQ35, in any "race" series around the world, making 500 hp (I'll take crank hp) - show me one making more than 450-460 in fact. One further - show me one pump gas car, as you claim, making 350, even 340, even 330 at the wheels."

RBlover69

iTrader: (2)

i see so technically with those parts i can see with race gas some great numbers. But do you guys actually have a build already. Thats def a monster NA build . See alot of us strive for 300rwhp and alot of sponsers here are doing some great builds themselves , but no where near your power estimations . So you know that saying that kind of statement is very hard for the Z community to understand because **** im tryignt o hit 300rwhp in my revup Z. Its a very hard task. To go 100rwhp beyond that NA would def have to be anything called street driven and more on the lines of a race spec engine. But yea if you can shed some light on any media you have on it it will be appreciated since noone here has gone that far that i seen with a NA build on this side of the shore with that much intensive work. Beside the very high comp motor of Pfactory and Z1s NA build that i have seen. On this side of the globe.

Crawford Z even with years underneath there belt broke the 300rwhp but it was cost effective to my knowldge with the ITBs. Nor practical. And they been trying to hit that mark for years.

gothchick

iTrader: (12)

I'm so glad to see more interest in this direction of engine building. I look forward to seeing the potential & results of your stroker kit, kwame! :-)