I think we will see a VQ hit the 300whp mark, but I have to think it is gonna be the HR on an 07+. Just personal opinion though. I have no doubt that you can hit 300whp with a 03-06 NA it is just gonna take more money than most people are willing to throw at it unless you are like the guy from Australia (I think his name was Richie? not sure though). It is gonna take a whole lot more than bolt-ons and a tune thats for sure.

 

Are the guys chasing 300whp in this thread ignoring my post? My revup, with full breather bolt-ons and a utec, is no where close. It's only at 265hp on a dynojet. The only NA mods left to me, without going internal, are pullies. You think pullies are going to give me 35hp?

 

What are your mods, your mods may also tell the tail. Some mods obviously are not benefitial as others. This is more the reasoning for peoples mixed numbers aswell.

 

Stillen airbox, ztube, mrev+, ichiba headers, kinetix resonated test pipes, stillen exhaust.

Other mods include JWT flywheel, clutchmasters stage1 clutch, strut brace, stillen sways, and coupe springs/shocks.

 

mrev+ do you have the spacer. Also what was your baseline.

 

The mrev+ came with the spacer. According to Tony, I have something in between an mrev+ and an mrev2 with the spacer. He had machined the lower plenum more than he normally did for the mrev+, utilizing almost the same process as for the mrev2. I also have a utec tuned by Sharif.

And my baseline completely stock was 242hp/210tq.

Also, for comparison, last summer I put down 240hp STD at Sharif's dyno. At the time, I had the stillen airbox, ztube, mrev+, crawford cats, and stillen exhaust. There was a bone stock 06 coupe there that put down 231hp STD, just 9 less than me with all my mods. Same engine.

I'm telling you, NA bolt ons are good for 20hp, maybe 30hp if you're lucky. So you're not going to each 300whp unless you dyno'd like 270whp stock.

 

Yea but are you even reading our posts .. were talking about hitting close to this mark once the cosworth intake plenum comes out .. which obviously you dont have(nobody does yet). Also your choice in parts are not the best for producing numbers.. though they are adequate they are still not the best avaliable.

You had cats rather than test pipes, your stillen airbox is probably doing nothing (but what inatke does, I know) the crawford headers are best on the market thus far compared to your ichiba.
Your stillen exhuast is beat by other exhaust manufactures on the market.
Most importantly you have a spacer/mrev rather than the new Cosworth Plenum that has yet to come out.

Theres nothing wrong with ur set up, but were not talking about the most affordable build. I have spent the extra money on parts that produce the highest numbers avaliable and Im going to continue to do so throughout my build. At the end of the day that can and will make a differece between two builds.

Look at this article ... It has been posted many times
http://www.jdm-option.com/eng/featur...2/z33_v35.html

 

Hey uhh, Timeattkz could you lead some insight into some info on the cosworth CAI?

 

see different dynos , ...my revup on a dyno jet hit 251 STD with a knn drop in. I believe your mods may have caused some variations in your hp. I would have to see the dyno to look under the curve . But are you sure the perforamcne values are the same for the mrev+ and the mrv2 with teh 51/2 spacer

 

You guys should all also consider it necessary to upgrade the stock clutch and flywheel to hit 300whp. Decreasing the rotational mass alone increases your engine efficiency, and the more friction you can get in the driveline the better. I personally would say that C/F is still bolt-on as well. Every car I have seen (personally) made more power on the dyno after clutch and flywheel swaps. This may not be true for every car.

With all honesty, If I was chasing 300 at the wheels, I would probably consider buying an HKS F-con setup and spend the cash for the best tuner I can find. I do believe 300 is possible with stock heads, but just barely. The intake valves have enough flow, but it would be beneficial to port the exhaust side some and install inconel valves. I would also think about adding an HKS ignition booster or upgrade to plasma ignition to get better spark at high rpms. The more fuel you burn the more power you CAN make. The injectors from the 07 Z would be nice to have also. If they fit the same they would give you better fuel atomization. These things are also bolt-ons that people do not often consider

 

^ Iam getting a clutch and flywheel by the way .. typicallly I dont list it as part of my engine mods to get to 300 cuz I think it helps more with acceleration not achieve hp numbers really.

 

My clutchmasters clutch and JWT flywheel didn't help my hp, or 1/4 times at all. Sure, the car is more fun to drive, but if anything, it hurt my launch at the track.

 

just out of curiosity, has anyone put in those JWT camshafts with the really aggressive grind? C-2 camshafts maybe? herse a link to them.

http://www.jimwolftechnology.com/cus...asp?PartID=461

filter, mrev2+spacer, UR pullies, crawford headers, 2.5 inch tests, 2.5 inch borla, cams, U-tec + tune = 300 rwhp & 280 rwtq? fair guestimate?

 

Guys, one thing you need to remember is dynos are always different. One car may dyno 300whp on a dynojet, and dyno 290whp on a different dynojet.

In all honesty, I don't think any REVUP will hit the 300whp (actual whp) without cams. The manifold needs to be ported to even reach those power levels. If you buy headers, only buy the best because if you have a high goal you will need every 2-3whp.

The UTEC is also a great unit, it can yield great gains especially with test pipes. To the member who said the 3" single doesn't add as much power as the dual 2.5". I would like some proof please. The 3" singles are lighter, the 2.5" duals are heavier.

 

but with some mildly aggressive cams, and all the N/A goodies plus UTEC & a good tune you'll come close? 290-295-300 rwhp? where would the torque be at running MREV2+Spacer?

 

But the MREV is designed to add torque at the expense of upper RPM horsepower. Certainly not something you would choose if your goal is high horsepower on a dyno.

 

one thing to keep in mind is i think these guys are reffering to #'s that would be accomplished on a dynojet. Your final #'s that you stated were from sharrif's dyno correct? If that is the case keep in mind that his dyno is a load based dyno that outputs lower #'s than a dynojet( i think sharrif stated somewhere around 10% lower). Granted that is still not 300whp, but it is alot closer.

 

The mrev does show a small gain in PEAK hp. Power after peak drops off much more than stock, but peak still shows a gain versus the revup lower collector.

 

Correct. But I'm at 265 SAE on two local dynojets. At the Z1's dynojet in Georgia, I was at 252 SAE.

 

I've never found a dyno for HKS dual exhaust before/after - do you know of one? (Searching for "HKS" is impossible cause of its only 3 letters long!)