Well, I had decided to quit engine upgrades one I had my Procharger installed about 1200 miles ago, but then this happened...

 

Yeah, although the engine currently Procharged in my G35 is running fine I bought another engine. The engine came out of a 03 G35 sedan that had been rolled, but the engine is not damaged in any way. The only catch is that i had to buy the engine and the auto tranny as a set, as the seller did not want to break them up. So, besides having a spare auto tranny for my 6mt everything worked out really well.

Now, to the issue at hand. I know I want to keep my Procharger. I talked to Procharger and they say they have pullys to safely take it to 24psi. My goal is to get the engine to run at 16psi everyday. I know I'm definately swapping pistons/rods and crankshaft, along with getting some head work done.

I'm also planning on replacing my 380cc PE injectors with the bigger ones. What CR should I be looking for for this setup? It seems to be split down the middle with some people saying take it to 8.5 while other people say keep it at 10.5.

Currently I have:
2004 6MT G35
Intercooled Procharger
Crawford headers/plenum/cats
JWT flywheel/clutch
Walbro 255 fuel pump/PE 380cc inectors/fuel regulator and return
TS reflash

By the time the engine goes it I'll have a cat back on the car too. If you all were in my situation what would you do? Keep in mind I don't want to stroke it and I don't want to go with TTs.

Thanks!

Kevin Pierson
www.KPtechnologies.net

 

KP--

YOU'RE MY IDOL!!!

LOL

build it supersmart bro... this is a unique experience/opportunity, that you really should take full advantage of...

l/c pistons, Ti conrods (crower, or the like) and some serious headwork......

also, having the crank balanced and bp'd would be a good idea......

once done, you could offset some of the cost by selling the stocker VQ...

i gotta ask... are you 100% comitted to the PC?? with the risk of sounding unhappy, i wonmder if this isnt a chance to try another F/I methodology such as TT..... (mimick the r34, cept its inline)

nice bro.....!

im anxious to hear more, as the story unfolds (make sure to chronicle the entire process, so i can live vicariously thru you!!

((also, PC's claim of 24psi being 'safe' is borderline looneybin speak.... i cannot see them making such a statement, even with a fully built VQ l/c motor...))

 

Es, Kevin said that procharger has pulleys to run the blower safely to 24PSI, they said nothing of making the engine capable of this task. That is Kevin's job.

Kevin, who is building the motor? Crawford?

 

The thing is, is I am completely happy with my Procharger. I don't really see the advantage to spend another 10 trand to get teh TT. The slight power increase due to the absence of paraetic load arn't that important to me. I do have limited funds for this car, and by the time I buy all the forged internals there just won't be enough money left to upgrade to the TT, even if I get top dollar for my ProCharger, which I probably wouldn't.

Oh, and my goal is about 550 rwhp.

Kevin

eS, wants its done I will be selling ride tickets, the first one has your name on it!

 

Crawford has done all the work on my car so far, but I'm not 100 percent sold on them doing the engine. I have spoken with Doug, and they can do it. But, they are awfully far away from me to be building the engine, asI would have to ship it down there, or to their guy in Atlanta. There are quite a few local places that can build engines, and I'll probably talk to the guy that has been building engines for my Dad for the past 35 years.

Kevin

 

so the impeller speed can support three times the oem setup, without revisions???


talk about over-engineering!!

how can the max impeller speed not be breached by tripling the boost levels only (pulley changes)

if i use the vortech calculator, (which is what i dont wanna do), i cant see this as possible...

 

Procharger used a 'generic' compressor for this application, it is their C-2 model. This model, according to their website, has a max RPM of 80,000, at which it will produce 24psi. I'm not sure what RPM it runs at for the G35 setup, but its obviously less. The tech I talked to claimed that they actually have pullies to run it at 92,000rpm.

http://www.procharger.com/models.shtml

So, as I stated before, I really can't justify going with the tt, also, I would have to give up my Crawford headers....


Procharger told me if I can build the engine they can boost it!

Kevin

 

i agree then KP.....

you have a winning setup, so les just make good better, and define any flaws/weaknesses, and adress them with solutions....

sounds like a homerun to me!

SMS

 

Whats this I hear about Crawford having a guy in ATL? Im about 1.5 hrs from there(depending on speed and cops). I would like to go FI within the next year and have no clue of anybody in the AL area who does this kind of work(on a Z).

Zach

 

ZACH-

autotrain it down here to sunny florida. my infiniti dealer also will do the install on the Zcar.....

food for thought, i guess......

S

 

The engine would go to Atlanta to be built Doug told me. It would then most likely be shipped to Nashville for Doug and his crew to install in their shop. I'm not sure of the relationship between Doug and the guy in Atlanta, but I don't think he works for Doug, I think Doug just uses him to build engines.

Honestly, installing just a s/c in a Z/G isnt' that big of a job, any shot that has installed a s/c before should be able to pull it off.

Kevin
www.kptechnologies.net

 

Sunbelt Engines

 

Nice tease Adam...

You could have at least shared your thoughts on what you would do if you had a vq35 sitting in the bed of your truck like I do now....

On a sidenote, did you all receive your VDC memory mods?

Kevin

 

Zach,
Z1 Motorsports is pretty close to you off of I20. You might want to check them out, I have had great success with them.

http://www.z1motorsports.com

 

Hi Zach,

I'm actually in Atlanta. My car is right now TT stock block. Hopefuly, if every thing goes smooth in a few months, I'll be purchasing a new block and building it. The shop that's been working on my car is called Boost Solutions. They are located in Suwanee, Ga. If your willing to come to Atlanta is worth the drive. They have a legit shop. They have incredible prices in parts, superchargers, turbos you name it they have it and if not they will get it a for a great price. The have a certified mechanic, which is also certified tuner.


www.boost-solutions.com

Josh

 

Im familiar with Boost Solutions. I went to the Porsche AutoX last weekend with some friends that drive Evos and we went to Boost Solutions to chill for a minute. I met George, however you spell his name.

 

I am thinking about rebuilding the motor in my ATI 350Z soon too. We should collaborate and maybe try to get a group buy on the rods and pistons if we can all agree on the same manufactures. Good luck and please keep us posted!

 

Thats a good idea. At the moment I think I am going to look into having the pistons custom made for a C/R around 9.25:1. I have only been able to find pistons for the VQ motor at 8.5:1 and 11.5:1. I think 8.5:1 is too low for an everyday driver, and I don't plan on running THAT much boost, only 16psi. I'm not sure how many other people would be interested, as there is no way in the world I would do all this if I didn't have the opportunity to buy this 2nd motor. Oh, and are there any FI 5at guys that are looking for a spare 5at tranny?

Kevin

 

You spelled it right. Yeah they are pretty cool. Those your friend has a black evo.

If you need anything for your car thats the place to do it. You saw the shop.

Josh