Cjw4050

iTrader: (8)

Reading the fi for dumbies thread on rx8club states quite clearly that you'll never make over 30hp without fi and that will cost at least $5000

angelo350z

iTrader: (3)

OP, would you be willing to finance a Z? That's another option you have if you're set on getting one. To put the power difference in perspective, an HR came with 306 hp, the DE came with 287 hp; which is about 275 hp by today's standards. Whether the extra 30 hp or so is worth the extra money is entirely up to you.

Cjw4050

iTrader: (8)

Yes I am considering financing

Cjw4050

iTrader: (8)

That PCM thing is for use with the Pettit supercharger kit which is like $5000

Jah70

Sorry didn't do my research, just literally typed in turbo and supercharger kits for Mazda RX8 on google

J 0 K 3 R

I do not think the hr is is worth any extra money. Actually id pay extra for a de 05-06 without oil problems. If im not mistaken an hr makes 305 hp and a de revup makes 300 and 5 more torque than the hr. Kinda makes em even.
Im pretty good with choosing oil and gettimg it changed on time and i have no ploblem with my 06. With a 250$ intake and an exhaust i should make more hp than the hr. Well worth saving the $$$ for the hr.
also the de engine bay looks better and i personally do not like the bulge hood. Lastly the 07-08 orange is awful compared to le mans sunset. Just my 2c

angelo350z

iTrader: (3)

^^ Exactly how much less is an '06 compared to an '07?

Jah70

Better yet, get the 04-05 non rev up since they have more torque, no oil consumption issues, more aftermarket parts, cheaper to mod, looks just as good as the newer HR, and overall you won't be paying as much to get a hold of one. idk why people say the HR is alot faster than the DE because I've driven 3 HR's so far and acceleration feels about the same and I've rac......drove enthusiastically against those 3 HR's and we were usually dead even. Sometimes I would rocket slightly quicker off the line but other than that they were just about even. If you want to see a huge performance jump, look into the Z34. That thing is lovely.

angelo350z

iTrader: (3)

^^ Have you two seen the the dyno sheets for each model? What about the 1/4 mi times for the DE and HR? If you have, you'll realize your butt dynos have been lying.

Nismo350z#0310

iTrader: (1)

I've done more than "driven," I've owned both. '05 touring and '07 Nismo. Difference is NIGHT AND DAY. The DE as soon as you start feeling good power the fuel-cut hits. Not only does the HR feel much more powerful but the power band is much improved and last a lot longer. Improved looks, improved engineering, improved power, improved internals, better response to bolt-ons and tune. Many guys are hitting 300-310whp with exhaust, intake and tune. I had a friendly pull against a DE Z a few years back, guy had intake, exhaust, plentum spacer and a tune and I still walked him to about a car length.

What's the argument here?

J 0 K 3 R

An 05 stock touring and a 07 nismo (nismo intake and.exhaust) would make a difference..but theres no way you would feel a difference between the lighter 06 base 350z and an hr with 6 more hp.
Im just tired of people saying the hr is 'so much better' and its 'night and day' when its a 2% hp gain and weighs 5% MORE.

And to angelo my 06 was probably more expensive than some hr's at the time due to having lower mileage than many z's. And again i like the looks of 06's better.
Not bashing hr's i just dont buy the hype.

Jah70

I guess it's not a fair comparison because my de isn't completely stock and I've only driven my de not a stock one. But I still stand by statement about getting a Z34 for a huge performance jump. Not a DE to HR performance jump.

Destroyeron

I don't have any experience with the DEs. Luckily this being the internet, so I'm going to offer my opinion anyways. My 07 is awesome. For me it was worth it to not have to worry about the oil consumption problem, headlights and better looks.

angelo350z

iTrader: (3)

The 370Z indeed is an upgrade. After getting one, my butt dyno doesn't really feel the diffrence in power that much compared to my slightly modded HR. I'm sure it's still faster though.

Jah70

Let's just compare stock for stock. I'm going to look up a dealership and see if they have any stock DE's I can test drive to see where it stands stock. My car was slightly modded when I bought it and I thought it was stock until I found papers in the owner's manual with a whole bunch of nismo parts the previous owner bought for it and a couple receipts from a tuning shop in Massachusetts and Z1 in Georgia. I also found out my car doesn't have a governor because it kept pushing past the supposed electronic 155 mph limit most japanese cars have. DISCLAIMER: I found that out on a racetrack, not on a public road. Just the other day I found out it had a lighweight flywheel which solved the question why my transmission was so damn loud. I just thought it was normal since most people complained about the Z's transmission chatter.

Nismo350z#0310

iTrader: (1)

Nismo doesn't have a intake or exhaust. Nismo is no different than a base model in terms of engine power. And the exhaust is just tips. Stock 06 is rated under older SAE standards and its power curve is not as good as an HR. You can go on specs of +6 hp but your not taking into account power curve, length of peak power, and the fact old SAE standards put it more around 280hp. Also, I have a close friend with a 06 , guy put intake, exhaust, plentum and tune and only pulled out 245 whp on a dyno jet. Take my experience with both engines or leave it. What do I know. *rolls eyes*

J 0 K 3 R

its called a PLENUM spacer, and it doesnt do much on a good intake. It helps air thru the intake runners more effeciently on certain intake manifold designs.
The stock DE revup should dyno around 260hp to the wheels. Your buddy may have messed up, like not setting the rpm's, or just a low dyno.
Also ive taken all SAE classes (like any autozone employee) doent mean much. And hp ratings are solid. The sae crank readings are not magically different as of 07...
On average a rwd with a cat. has a 17% loss
to the wheels. (awd has a 22% av. Loss.) and i think that includes automatic transmissions with pos torque converters.

Nismo350z#0310

iTrader: (1)

I was under the impression the revups were dynoing mid 240s. At least every dyno chart I've seen shows that. Also, I may be wrong but I believe before his mods my friend dyno'd low 240s. I've never heard of a stock revup getting 260whp. Revups have the same outcome that most DEs do in that a few bolt on and tune can't get you 285-300 like an HR can.

stuartc323

Either way it goes OP your looking to mod car for looks, get an 06, cheaper than an hr, same looks and everything else just different motor.

Both motors are really good and reliable, the hr motor is just better on internals and ecu tuning, a good tune for a de can match the ecu of an hr but it wont match the internals. The hr motor is not much faster but the way it delivers its power is way better than a de. Thats why the hr motor is better.

NoQuestionZ

iTrader: (93)

OP, I have had my HR for almost 3 years. Still feels brand new and any time I get on it, I still get the "POWWWWWWAAAAAAHHHHH" feeling like Jeremy Clarkson. Meanwhile, my buddy in his SUPER sweet 03 has essentially NO 3rd gear when driving aggressively because his synchros are on the fritz.... Just a matter of what you want to pay for?
I test drove an 05 a year or 2 before my 08. It was fast. If I would have found one with as low of miles as my 08 had when I bought it, I would have. But those Zs are being eaten up by low prices and young kids driving/crashing them.

Real life- buddy's 03 with Intake, plenum spacer, test pipes, exhaust vs my Pop chargers and Cat back.......pulling on him every time..... unless I shift when he has to 1500 rpm early

HR>DE IMO.


EDIT: <<-- former RX8 owner here... HR>DE>>>>>>>>>>>RX8