+1 i was tempted to do the same to my G but ended up buying a 240sx wich im building at the moment.

 

Dude, this isn't some backwoods motors kit... These are the people who built the car! I called already about it and it will run 93 just fine, and run Sunoco 94 even better. We have 94 here for just 6 cents more. Most Sunoco stations offer it now.. 91,93 & 94 premium. I'm sure Nismo knows what they're doing. And you don't have to worry about always retuning, sputtering and what the SC is going to do to the engine. Hell 12.3:1 isn't that high. We have guys running 13.1 flat top pistons in small blocks! sheeeeeet...

People been wanting a NFI option from Nismo, now that come out with something, everyone is complaining... sheesh...
Who you gonna trust ? Backwoods Bolt-ons or Nismo ?

 

Upon college graduation I was trying to decide between a cobra, lightning or g35.

I ended up with the G because everyone has mustangs and fords interiors are not near as fancy and nice. Plus the G looks soo much cooler than the other two.....

Now im thinking maybe I shoulda gone with either of them, spent the 1k on pulley upgrades and gotten either to about 450 whp

 

I'm not saying the Nismo kit is some sort hodge-podge kit, but I'm pretty dang certain that setup is marketed for race cars that utilize race fuels. These engines already ride the fine line between safe and knock and that with a 10:1 ratio. A step up to 12:1 is HUGE. Sure, you can program the ECU to compesate for some knock/preignition issues, but otherwise, it's going to take high octane to keep the fuel from preigniting under such compression.

As for your friends running 13:1 compressions on their small blocks, they've got to be running race gas. Back in musclecar hey-day, muscle cars typically hhigher 11:1 to 13:1 ratios, but they also ran leaded gas that often equaled 102 to 105 octane.

 

I don't know about you, but if you were deciding between performance cars in that arena, the G35 was mistake, unless you wanna spend some big bux!

I don't care who you are, it's just a matter of time that you'll want more power if you're car enthusiast! It's like getting punched in the face. How many times you gonna take it before you fight back ? Sorry, by me it's not all show and no go. I gotta at least be doing 4's 0 - 60 and 12's on the street. I get my chain yanked all the time by so many other cars it ain't even funny. And there is no other feeling then the feeling of winning!
Everyone i knew that said they just want the look, eventrually wanted another 100+ hp because every tom dick and ricer harry was wanting to race them. You're only asking for it if you trick out the look of your car and hit the streets, whether it's 1/4 mile or twisties... So, you better have the muscle and or suspension to back it up! (unless you're just strictly show competition or something, i can understand that...).

 

I've had fast cars in the past and I can tell you it's exhausting because when you have a fast car, you're always in competition with other similar known fast cars. 12-second F-bodies, Vettes, Sti/EVOs, etc are everywhere and frankly, not that impressive to most people because 12s really isn't that fast now. I've found it MUCH more enjoyable to have a decently quick, nice driving, nice handling, and damn sexy sedan instead of having a car that is in your face, full of compromises, and suppose to be "fast". I could care less if an STi or Cobra could light me up. I'm happy with my lower 14-second ride and I find it plenty fast for the street. Hell, even at the track I get a ton more respect in my G than I ever did in my significantly faster Z28. I don't street race so I could care less about any other car trying to egg me on at the light.

 

- Wider tires will help.
- Your stock clutch will hold but go out faster so replace it now if you have the money. (I have a centerforce for sale if you are interested, PM me)
- Your stock internals are fine for those kind of numbers. There are tons of us in that range with no problems.
- The cheapest way to get to that power range is the Vortech. Your car will be like stock up to ~3500rpm and then a rocket after that. The other option is the Stillen which for ~350whp you would need stage 4. It has tons of low end power and starts making boost as soon as you press on the gas because it's a roots blower but 350whp is about the max you will ever get out of it on a dyno. It's a better city driving car (IMO) because you don't have to wait for boost. You can be driving along at 2k rpm, hit the gas and the power is there.

If you decide to go the SC route, there are tons of threads comparing these two kits in the FI section.