Here you guys go, I find it interesting to see the difference between the two engines.

This dyno was done on the same day same conditions. I have just about every bolt on for my car and the 07 has exhaust, test pipes and gears.

The 07 engine really shines in the top end compared to the older engines, no suprise there.

The 07 car belongs to Gooey.

Here is the Overlay

07 in Blue
03 in Red

Later
Todd

 

WOWWW, youre making 280 rwhp with boltons and a tune? I give 300 rwhp mark 2 months with those HR's.

 

damnn

 

wow nice overlay. Your 03 is running real strong Todd. Were pretty much similar throughout until 6k rpms where the HR really shines. I guess it makes sense. At the track day we had I always reeled in on the previous models the 2nd 1/8th.

 

Yep, i need some cams for top end

Looking forward to the next track day. I want to run against your 07

Cars are pretty even until after 6k, just got to get a good jump on you before you get there

Thanks for the files

Later
Todd

 

How do you get a larger MAF housing and where can I get my Throttle Body bored?

 

No Todd. I look forward to our next track meet too. I cant wait. Since our cars are very similar in power. I just need to learn how to drive like you

 

think you could match that HR's powerband with the cosworth manifold?

06magz- z1auto offers a 3 inch MAFS...but you need an aftermarket ECU (Utec, haltech, F-con) to use it I believe. hundred bucks for the MAFS, around a grand for the ECU's lol, worth it if you have full boltons and a ECU already. I'm pretty sure aceman figured out that the throttle body bore didnt do much? correct me if im wrong OP.

 

Not sure about the Cosworth manifold, would love to try it out though. Its a nice looking piece.

I have a 3 inch MAF housing now, its tuned with the UTEC.

Your right, the bored Throttle body did not do much by itself ( stock intake pipe and MAF housing ) but with that enlarged, i beleive it helped.

Later
Todd

 

Cool chart!

The 07's dual air intakes really help out with the improved top end performance over the older models.

 

lol...... not every non-revup is going to look like that... your car is a beast


however.... all that area under the curve on the HR is sick

 

Nice numbers, now i cant wait for nissan to put the 3.7 in the Z and drop the weight down to 3k

 

I was thinking the same... The HR might not even catch up on top with all the area you have under the curve vs. the HR...

 

making more TQ.. i love me some TQ

 

good numbers todd!!!

 

Thanks Wired

There are a few more things i want to try out before i go with Heads and Cams

WOuld like to move my HP curve up closer to that of a HR engine.

Later
Todd

 

if they bump displacement, theyre gonna bump creature comforts for whiney panzies, thus bumping weight up as well

I doubt they'll turn the Z into an edgey track machine for guys like us any time ever...

 

+1 We (forum members, hardcore guys who track their Z's) are only a small % of Z buyers. I doupt Nissan will change their car that drastically. With a 330hp motor and 3000 curb weight youre looking at a totally different class of car. Well be lucky if the next gen Z has the same weight as the current ones.
Changing the car will drive the prices up and throw off a lot of potential buyers.

 

which is why i'm keeping mine, gonna do this and that till I hit like 280 rwhp...4.08 gears...and a prolite flywheel will give me the acceleration I want..lots o' suspension work..and try to get it down to around 3200 pound curb weight. bah humbug on the trend of making cars fatter!

 

GREAT numbers. But why does your power die off so much after 6300K RPM?