test

 

So is that corrected 507rwhp for altitude? or is that at that altitude? Pretty wild, looking forward to reading more. Keep up the good work.

 

I believe it is at that altitude! Any way i went to their shop today thay are really cool guys out there at Boulder Nissan anybody in Colorado should think of checking them out for any work to be done they have the greddy TT car down their that they are still working on as it ran out of fuel at 15psi at 4600 rpm on the 40c injectors !!! They also have a Stillen SC car down there that i got to check out as well PRETTY SWEET!!!'

Probably the coolest thing was checking out the vq35de sitting on an engine stand with the turbos hanging on the sides !!! This motor has been fully built with forged internals and is going into a customers g35 coupe!!!

The guys down there are all members here and will be posting their work here when they are finished ..I cant wait!!

Their install prices and equipment pricing is very reasonable I will be doing my TT kit there this winter while the car would be sitting around anyway.

Hey Boulder Nissan HURRY UP and post your install pics and info we are all dying to see it !!!! LOL

 

Due to the 5430ft altitude at their location and GUESSing a typical 1.27 SAE correction factor that I've seen from some dynos up there, that's equivalent to someone at sea level with 399whp.

So, if it was SAE corrected(shouldn't use on a FI car ESPECIALLY at altitude~!), what was it?

That's the ONLY way to compare apples-to-apples.

 

No they were not using a correction factor they were just measuring true rwhp besided when you are running forced injection at altitude there isnt much difference at all to sealevel like when you are N A.

Think about it there are plenty of cars here running 8-9 psi with 400-450 rwhp @6500 rpm more or less.

they ran 14 psi and when the 440c injectors gave out at 4600 rpm they measured 544 ft lb tourque and 507 rwhp.

Remember their motor is fully built with forged internals and is capable of running 25 psi but right now they are working on the fuel system as the greddy injectors (440c) are not designed to work with psi over 10 so their motor is running out of fuel at about 500 hp!

 

Those are INSANE numbers uncorrected. Wow~!

If you're SC'd you'll see less boost then guys at sea level, but if you're turbo'd, you'll see the same. However, the SAE correction factor will overcompensate like you were a NA that lost 2X%, which isn't valid since the turbos spin faster to make up for the thinner air.

Can't wait to see the limits of a built VQ.

 

how did you make 507 hp on 440 injectors at any point in the rev range?

 

Neither can I their goal is to hit 650 rwhp and run 25 psi!!! The guys Boulder Nissan have assured me they will post info and pics on the install when they have got the car finished!(they are all members here)

The car has a full roll cage so im assuming they will be trying to break the 11 sec mark up here at Bandimer Speedway so im sure we will get to see some killer time slips from them this summer!!

 

holy crap those are good numbers, but interesting to see what they actually hit when they can deliver enough fuel past 4600rpm. I stopped by last weekend, but looked like their shop was mroe less closed with just a whole lot of construction going on. We need to find out who this g35'er is, wouldn't mind seeing the car in action once it's done! lol

 

Yea the G35 Coupe looked like it was close to being finished it was pretty cool seing the vq35 engine sitting on the engine stand with turos hanging on the sides!

If you are in boulder and a red g35 blasts by you like you are standing still ....thats the car!!!!!LOL

VERY interesting they said a new plenum was a must for a built block as well as cams with more lift and duration were a must as well!! $$$ both their car and the customer car had the crawford plenum which eliminated the poor factory design which leaves the #5 and #6 cylinders prone to lean conditions and blown motors!

good info to know if you look at a stock intake the front of it is much lower than the back side of it by the intake creating a weird angle and restricting airflow towards the 1 and 2 cylinder the crawford plenum is raised alot higher to wards the front of the engine bay thus creating more even air flow to all cylinders and this is why the strut bar goes away with their plenum.

interesting did nissan design their plenum around the strut brace??? that would seem idiotic..

 

I would tend to agree, but have you seen our oil dipstick lately? I'd like to punch the guy who made that.

The only problem I see with the longer duration cams is that they will be hurting idle down low. If I'm not too far off, the higher lift isn't a problem except for seat and valve wear, but duration can get a little rought.

 

I have no idea how as its Boulder Nissans car not mine. They Said they ran 14 psi and it ran out of fuel at 507rwhp @4600 rpm.

 

You'll need 720cc injectors to run 25 lbs of boost. Who makes injectors that big for a 350z?

 

IM not sure if there are 720 cc injectors availible for the 350z yet but i know right now they are building a fuel system for that car that will support 25 psi ....cant wait to check it out when its finished!

 

A assume they were running a new fuel pump....return line..FRP. Right?? IF so, I bit they JUST...might be able to squeeze 500wrhp or so from the 440cc injectors.

 

Well custom is always better. Custom fuel rail and maybe some DSM injectors. They are dirt cheap. That is what I am thinking about doing. They do it on SR20's and 300zx's

 

They said the fuel rails from the factory are a good design and can easily handle the fuel delivery...the problem lies in the injectors, they were using an upgraded fuel pump and the 440cc injectors that come with the greddy kit and again the problem was with the boost set to a very consertive 14 psi the 440c injectors just couldnt keep up and ran out of gas @ 4600rpm @ 507 rwhp ...the interesting thing to me was at 4600 rpm they were making 544 ft lbs of tourque!!! my god!

About the return fuel line i didnt ask to much about the new fuel system they were devolping but when i go in to get my crawford plenum installed in a few weeks i will see what kind of progress they have made and post an update if they dont mind.

keep in mind this car looks to me like its built for serious track use it has a full roll cage sparco racing seats guages everywhere the works !!

They will be running the car up at bandimeer speed way which is the local 1/4 race track up here in Colorado (elevation 5280ft) and i cant wait to see some et's and trap speeds!

 

There will be some nice traps for sure! But pending a dyno chart and lots of traction, I sure hope we aren't going to see supra-like massive HP making so-so ETs.

I have faith in the VQ, I don't think we will!

 

I don't know about using DSM injectors on an SR20, but I feel pretty comfortable saying that they are not being used on any 300ZX with success. Sorry, but there is no cheap upgrade as far as injectors go on the Z32.

 

not sure if this has been posted yet but these guys claim to have 600cc injectors...

http://www.jtuned.com/content/templa...id=34&zoneid=2