Z1 Performance

iTrader: (564)

obviously you didn't read the links you posted, so I'll help ya out (trust me, I didn't ask the question because I didn't already know what the answer is)

GT300 cars don't make 500 crank - more like the mid 300's.

GT500 cars don't use VQ35's , they run twin turbo VQ30's

Z1 Performance

iTrader: (564)

how many VQ35 heads have you had on the bench?

So again, where are these VQ35's you know of making the 450-500 crank hp you are claiming?

You're "laundry list" of parts might be what you think sounds good on paper, and certainly is the list of general components needed for ANY high hp build, but you're certainly not "showing us" all these VQ's that you seem to know about making your claimed power.

You seem to be the all knowing VQ master per your posts, and know about cars no one else here does, so where are they?

EM-EFER

iTrader: (6)

Here is a picture of Brett@TPSreports

Kwame

iTrader: (78)

I think Brett registered at the wrong forum. This is a 350z forum not a C6 ZO6 forum.

RBlover69

iTrader: (2)

yea i was gonna save u from that post , but Z1 already got to ya. VQ30 my friend. the gt300 cars btw have budjets that we and some shops wont gather in years. Where talking about race tech sponsorships . Not something a every day joe like us and our tuner shops would make for someone needing to actually drive a Z on a public road.

03BrickyardZ

I thought the GT500 cars were running TT VG30's.

I'm prolly wrong though.

Z1 Performance

iTrader: (564)

sorry I meant VG

Z1 Performance

iTrader: (564)

[QUOTE=EM-EFER]Here is a picture of Brett@TPSreports

[QUOTE]

sneaky, sneaky...but very funny!

Bleach

my thoughts exactly. I'm still trying to find that brand of cam. Google turns up nothing...

Resolute

iTrader: (2)

Holy crap this thread is nuts. The OP was asking for practical output that can be made in a budget. I honestly don't have the answer for ya buddy, sorry. Adam has a nice engine making 300whp (I don't remember what kind of dyno, but maybe he'll post a link to the build) that doesn't need an entire engineering staff to tune it and rebuild it every weekend. That's about your best bet right now.

As far as what the VQ35DE can make in an all-out racing set-up. That's easy. The highest so far is 505 hp at 8500rpm as measured at the flywheel. Before anyone jumps down my throat, this is a racing engine with factory short block and dimensions, and everything else custom. These engines are built for RJN Motorsports to compete in the FIA GT Championship. This company also competes in the British GT Championship series, and is now committed to the German 24 race at Nürburgring Nordschleife called VLN for short. Here are the links to RJN, the UK Nissan cluib that follows their racing, and german link of the VLN race with some good shots of the RJN car:

http://www.rjnmotorsport.com/
http://www.thepitwall.com/
http://www.automobilsport.com/24h-nu...s---23559.html

The engine is made by a company called IES racing. The 505 bhp is unrestricted. It makes something like 470bhp restricted for the FIA racing series. They don't have an active website right now, which is a shame because they had some cool pics. They also made the engines for RJN's successful touring car run, using Nissan SR20's. IES also made the formula VQ30 engines for Nissan Infiniti's formula car racing program in Europe, and these engines had an unbelievable 10,000rpm rev limit. A picture and information about the new VQ35 they use was posted in the Nissan Sport Magazine, I believe two issues ago. David Muramoto was the author.

One gentleman in the UK has his own NA beast done, similar to Ritchie's car in Australia (now sold to someone else, but it's always going to be known as "Ritchie's Car"), by RJN's tuning using several Nismo parts and some IES engineering know-how. He is on this forum from time to time, but I don't know what his whp is. The link to the build and specs is here:

http://www.lustthenlove.com/Page5.htm

As far as the Nissan GT Series goes, that's a whole different animal. The GT300 cars have pretty tight restrictors that mandate power to be kept around 300 hp. The VQ35 was used because it is the largest displacement allowed for a non turbo, non AWD car that doesn't get penalized with larger restrictors. The GT300 Z would probably make less hp that Adam's engine to be honest. This is because the restrictors prohibit high hp figures at high rpm use with such a large size engine, so the tuning emphasis was on greater torque in the "breathable" rpm band with the restrictors in place, while allowing high rpm for gear ratio advantages on different tracks. The engine makes more torque than hp. The VQ35DE makes an unrestricted 450bhp when tuned for the NIssan Dakar Rally trucks. The older GT500 cars, before switching to V8 engines last season, used a VQ30DETT that was built around the standard VQ30's engine dimensions (same bore spacing, etc..) but was cast specifically for the GT series. The bore and stroke are not the same as the production engine block. The 3.0 liter block was used because GT rules required any FI engine over 3.0L to use smaller restrictors. 500bhp is the class limit, and this could be easily reached with two turbos and only 3.0 liters of displacement, so there was no need to move up to 3.5L and be forced to work with smaller restrictors in front of the turbos. The block was allowed to change bore and stroke as long as factory dimensions were used, along with many other allowances that make the series a good place for an enginner to work in. All of this info is from an article in Racecar Engineering that appeared in late 2004, interviewing the head engineer of NISMO Racing about their successful GT500 run and the series itself. I have the magazine still, but not with me, so I'm sorry not to publish the issue number right now. It's a good read.

Here is a link to some info on the racing series Nissan competes in, and some info is on the VQ engines used:
http://www.nissan-motorsports.com/EN..._VQ/index.html
You might notice that the VQ35 is not the same displacement as ours, it's actually 3.6 liters. this is allowed as long as block dimensions are the same and the maximum amount of variance is used. The same thing they did with the VQ30 for the GT500 cars.

Will

Edit: I guess the formula series is no longer the Nissan Infiniti formula series, but called the "World Series by Nissan", but I've also heard it called Formula Renault. I think it's the same chassis and engines, either way.
And the LeMans 24hr car that used a VQ 3.4 liters was also built by IES, and they had a cool picture of it on their website, when they still had one. When I get home, I might post it up. Neat looking engine.

03BrickyardZ

I think "large" is the lift and "In charge" is the duration.

I'm looking for a conversion chart now.

Z1 Performance

iTrader: (564)

good post resolute, thank you

my details are in my sig - click the thread (was on a Dyno Dynamics)

Motormouth

iTrader: (44)

gee, now why couldn't brett post info like resolute did?

that is pretty badass though resolute!

Resolute

iTrader: (2)

Thanks!

So, since the topic here is really what kind of power a person can get out of the VQ, without having to fund a race team, what would yours make at the wheel on a dyno jet. I know, I know... different dynos are not compatible for fair comparison, but all of my runs are on dyno jets and I'm just curious what your best guess would be- simply so I could get an idea of the power of your engine in terms I am familiar with.

Will

NoahzBurnt

iTrader: (10)

here is how u make 600 HP N/A


Before



After

Resolute

iTrader: (2)

LOL, I can't believe someone finally did an LS swap! That's pretty cool. I don't suppose you had Hinson weigh your VQ to compare to the LSX you have in there now, did you? Longblock to longblock? I'm curious just what the weight difference is. My guess: around 100lbs all said and done.

Will

Z1 Performance

iTrader: (564)

Will - it really is hard to say. I've read that the differences to be anywhere from 5%, and can be as high as 20-25% (the Dynojet reading higher) but it really comes down to how the users set each dyno up.

On my particular runs, they were on pump gas and a very conservative tune, as the motor was still pretty new so we didn't want to go nuts. The next time it's on the dyno (soon!), we'll be running some race gas mixed in and really crank the timing to see what she does !

350Z84

iTrader: (5)

Kwame, when do yall expect to be done with the stroked build?

NoahzBurnt

iTrader: (10)

I used a Cast iron LSX bowTie block stroked out to a 454 witha fully forged rotating assemby, aluminum heads and intake....all said and done it is 30 lbs lighter than my twin turbo Vq.....or about 73 pounds heavier than stock...an aluminum LS series should weigh in much less

DanielW

iTrader: (27)

Damn I was gonna make the forza comment but someone beat me to it