Nice post. I never knew what was behind fuel rails..

 

I know "don't skimp on your fuel system" was mentioned in a number of posts in my build thread.

Probably good advice.

 

Extremely well said and I 100% agree.

 

What do you think about this set up?
Procharger C2, CJM-S2 RFS, DW 600cc injectors, Uprev tune (can get done @ Austin Uprev), Wabro 255LPH, Cosworth fuel rails, Motordyne 5/16 spacer and some good high flow cats.

 

You won't need the Cosworth fuel rails b/c the CJM S2 comes with them as well as a fuel hard pipe. I kinda think that the Stage 2 may be a little overkill and a Stage 1 will suit your needs but if you like the flexibility of having more than do it.

 

Some wiggle room never hurts. I was so busy reeling off parts that I overlooked the fuel rails on the CJM-S2. By the way, how much boost can you safely get away with using stock internals?

 

There's a lot different opinions about this... I'd keep it at or under 400whp. The rods in the VQ are suspect to boost, I'm personally aiming for 370-380ish whp with the upgrades I'm picking up for the HKS.

 

Kinda was thinking the same thing. All of the info I've read seems to coincide with what you are saying.

 

I agree, upgraded rails are overkill at 400whp... but if you've got a good deal on it, it can only help...go for it.

 

Doesn't matter if you are running 350whp or 400whp you are at risk for failure. IMO do everything you can afford, if you can't afford a built motor right now then do all the mods you would need for when you have a built motor because eventually it will blow or you will decide you want more power.

 

^ Truth…my motor bent a rod at 360 whp.

 

You guys are confusing power with torque. Torque is what snaps rods, and your turbo setups putting out 360whp and 400whp were also putting out close to 360wtq and 400wtq. Superchargers don't put out nearly that much, which is why they are generally safer for stock motors. My 400whp setup is only putting down 330wtq. Not saying SC guys haven't gone through motors, but it is much less likely (given a proper tune) in comparison for that reason alone.

 

I was pushing around 340 lbs. of torque at the time.

 

I don't think I agree with that statement... they build boost differently and generally on the VQ you'll never really make equal WHP vs TQ let alone anything above WHP. There's 3 different types of superchargers made for the VQ and all 3 have different WHP/TQ values in respect to the kits... my HKS(Rotrex design) makes more peak TQ than both the Vortech and ProCharger(in base kits... not upgraded) but they make more overall power. Turbo's are easier on stock engines b/c you can control boost... superchargers are belt driven so it's relative to how much air the supercharger can develop.

 

There is some truth to your statement about blown engines, but I've heard many people have been running TT & SC on a daily driver for years with no problem. I'm just saying with proper tuning aren't a high percentage of blown engines driver failure? Not to say that you guys who have blown your engines don't know what you are doing, it's that mistakes can happen (over revving etc.).

 

Congrats... Is it a new setup from directly from Procharger or did you buy it through a dealer? The reason I'm asking, some owners in the past saw their main brace flex at high boost levels which led to belt slip and belts breaking. Let's just say a lot of bitching when on around here... I'm curious to see the latest main brace design if it's from Prochager. I would hope they machined the brace differently or added a slightly thicker metal in stratigic areas to reduce brace flex at high boost levels. If it is from Procharger please take some straight on shots of the main brace from the front and back and post it up here, thanks in advance!

Also, if you still in the process of getting everything together for you setup, consider running your belt in this configurations (see link) and not Prochargers suggested configuration. You'll grap more cog pulley teeth

Post #48 and #51...

https://my350z.com/forum/forced-indu...g-belts-3.html


GL,
Zquicksilver

 

I ran my ProCharged G for 4 years at 7psi. Return fuel system, 720cc injectors, built 5AT and UTEC- all work done by SGP Racing... It's wonder that after a year of kinks it ran pretty flawlessly for an FI VQ!

Have fun. I loved and miss the whistle and god-awful loud noises it used to make. You can't hide it, and I loved that.

Good luck with it all!

 

Appreciate the good wishes! I'll post some pics as soon as I can.

 

I wouldn't get so worked up over numbers. I've seen 330wtq snap rods in a matter of months and 450wtq/500whp run until the owner got bored with the stock block and went with a full build.

The combination of supporting mods (e.g. lack of), EMS and tune, and driving habits are far more likely to pop a stock engine than raw numbers.

 

You're absolutely right. I'd say that tune and driving style have more to do with it than anything else. I was just speaking on general terms, and based on the majority of people's experiences on here. Any type of FI has to be treated with respect and maturity, or bad things are inevitable. Good post though, its my fault for not being more specific. I don't want people to think that they can just slap on a 400whp SC setup, tune it for max power, and then go drive around like a teenager trying to impress their friends at every stoplight, and expect it to last forever.