oh i thought he meant fun as in stuff like how it drives, acceleration and performance. yea the DE has better aftermarket support due to its age and it is a good motor no doubt, when it comes to basic bolt ons they both have pretty much the same thing , all exhausts are the same exept for the cats, intakes are of course different but u cant go wrong with the injen cai speaking from my experience with the product, just that HRs dont have the intake plenum therefore eliminating mods such as spacer, lower colector , diferent plenum. diffs i think are the same just different from auto to manual trans correct me if im wrong. suspension, brakes and aero mods go for all Zs . nitrous is pretty much all the same. tuning is where the HR doesnt have as many options but uprev seems to get the job done or if u wanna spend some money then haltech or Fcon. no superchargers but i dont care about them. oh and turbo mmmmmmmmmm a couple options but no single turbo in production that i know of. to me its all the same i just like that the HR is beefier therefore taking boost better although i believe every1 should build for boost but the stock block can take a lot of abuse. lol long post sorry!

 

I really tried not to click on this all day... I couldnt resist...

Its always entertaining.

 

HR AT vs DE AT. 26.6hp difference.

306 - 287 = 19

SAE Certified Horsepower can't be under or overrated like before. The G35 Sedan and G35 Coupe were marketed with a 20hp difference, and the Z had 7 more on top of the G35 Coupe. Notice that since Nissan switched to the SAE certified rating, the power differential between models that use the same engine have become pretty damn narrow.

Not enough evidence? The G35 Coupe was rated at 280hp for the non-revup engine, so 2003-2005, and 2006 automatics. 2006 manuals used the 298hp revup. In 2007, the coupes powertrain remained the same, but the automatic was rated at 275, and the manual revups were rated at 293. Lost 5hp from switching standards. Same goes for the FX35, going from 2006 to 2007, 280 to 275.

Following that pattern, the 287 engine would be around 282.

306 - 282 = 24, which falls within the tolerance range of the dyno pic posted above.

 

I'd get an S2000. Haha kidding go with the HR. For sure.

 

I actually considered it, but I'm not a fan of roadsters very much.

 

As for the power difference, look at the stock DE 1/4 mile times/mph vs stock HR 1/4 mile times/mph. That will pretty much tell you what the difference is.

Here is a sample of the top 20:
1. Pat Bateman ---------------------07 Base 6spd 13.150@107.62mph 2.027 60ft
2. Veetec --------------------------07 Base 6spd 13.157@105.32mph 1.938 60ft
3. Peak350 -------------------------07 Enth 6spd 13.239@105.67mph 1.923 60ft
4. Warmmilk ------------------------07 Enth 6spd 13.412@104.04mph 2.006 60ft
5. Bkennedy ------------------------07 Enth 6spd 13.476@102.90mph 2.070 60ft
6. OzzyRulez -----------------------07 Base 6spd 13.476@103.87mph 2.073 60ft
7. 2007-Z --------------------------07 Tour 6spd 13.540@102.20mph 2.068 60ft
8. PFI350Z -------------------------07 Base 6spd 13.568@104.69mph 2.159 60ft
9. Veetec --------------------------04 Base 6spd 13.640@102.42mph 1.983 60ft
10. jdifolco -----------------------07 Tour 6spd 13.644@104.68mph 2.201 60ft

 

Completely false. Where do you get your information from?

 

If you're serious about the AutoX, HP has very little to do with it. A 91 Miata can soundly beat an 07 stock HR.

 

this is so completely false ^

The HR is without question a better motor in stock form. It also lets you go further than the DE's do before you have to tear them apart to build them. Once the engines are torn apart and built, the differential becomes far narrower, if present at all. I have said many times, I wish I was able to start my car off with an HR, as I probably would not have had to build the block to achieve my current setup. At the same time, there is alot to be said for learning things as you go, for being able to take things apart, figure out what makes them tick, what needs to be improved for a specific goal, and what can remain as is. There is also something to be said for being able to enjoy my car since 2003, vs having to "wait" for the "better" platform to come forth several years later.

The downside of the HR is that some individual mods are more expensive and/or more involved from an install /tuning standpoint vs the DE's. However, anything and everything you could want to do to either platform is readily available

 

^Stop posting and hurry up with that CSC kit! lol j/k. I couldn't agree more with your comment. To say the HR doesn't have aftermarket support is absurd. That comment should be deleted. Just about every HR on this site has some kind of mod. Kacz07 needs to check out the F/I section and take a look at the MANY TT HR's.

 

We've already posted about that in the appropriate thread...it's nothing that we're rushing into right now but we will hopefully offer it in the future. I need to see for myself that it works and works reliably before we start offering it for sale to a customer

 

Please elaborate. Your assertion goes against EVERYTHING I've read and heard from publications, service techs, engineers, etc.

 

But none of that proves that the HR would have been rated higher under the new standards. The Z's rating never got revised, and I don't recall the G35's rating dropping to 275 (but I do remember the rev-up revised rating of 292)

Furthermore, if the difference was "5hp" how do you figure the HR was rated at 320hp?


The fuzzeist ******** math I have ever seen.

 

I'd like to see these experts and tech articles that you read. I want to see how you can magically calculate 5hp from every motor. It's ********, and I'm tired of seeing people repeat it.

 

I never said the HR was rated at 320, nor did I allude to it. The point I made is that the 287hp engine would not have been 287 under the new standards. The delta between the 2 engines was ~27hp. You can add that to 287 and get the assumed power rating of the HR under the old standards, or subtract that from 306, to get what an actual readout of the 287 engine under the new standard would be.

The Z's rating never got revised because they switched motors during the year that Nissan decided to VOLUNTARILY use the new rating standard.

The UK market HR is rated at 309bhp. JDM is rated at 313ps. 313ps converts to 308.7. The Euro market revup was rated at the same 300hp as the USDM, and their current rating system isn't the new SAE "certified" rating.

As for the automatic G35 losing 5hp from 2006 to 2007. Just because you don't recall it, doesn't mean it didn't happen.

Realistically, the 287 horsepower engine was probably slightly overrated to begin with for marketing reasons. Same as the 2002 Altima's 240hp vs 2002 Maxima's 255hp. If they overrate too much, its false advertising, but the manufacturers were well within their rights to use what flexibility the old standards allowed to stretch their numbers as much as legally possible.

 

It's not a magical 5hp for every motor. In the Nissan situation, its the SAME motor. The FX35's VQ35 was the same non-revup as the G35 and 350Z. The revup on the G35 and 350Z were the same engine. We're only comparing 2 unique motors.

You remember the rev-up revised rating of 292, prior to that it was 298 for the G35. So 6hp. 6 or 5, for all practical purposes it's close enough.

Other manufacturers lost or gained power under the new standards as well. The new Z06 was advertised originally as 500hp, which was the marketing goal, when switching to new standards it went up to 505. The RX8 lost almost 10hp from the transition. Theres no exact number, it all depends on what amount of over or under the manufacturer used prior to the new standard.

 

It not only hp that makes the HR a better engine, you all know that right?

 

I'm sure they know that... someone commented that the difference in HP is slightly larger than one might think at first impressions due to a change in standard during the year the HR first came out. Hence the debate.

 

I guess these fourms "reset" themselves every year and we end up arguing about things that were already covered. We have to learn to use the "search" feature in this forum.

 

I never argued, or cared what the "new rating" of power was on the DE/HR, I merely wanted to clear up the fallacy claiming that "__engine would have x amount more power under the old standard" Which is completely incorrect, and untrue. As you pointed out, some engines "gained" power, and others even stayed the same.

Also, didn't the G35's have a few less horsepower than the Z's dude to more restrictive exhaust (which is a wash regardless). Furthermore, I would hardly say that dyno is the definitive answer to this utterly worthless ******** claim people are making.