Intake/exhaust/reflash question

mpp9

I'm looking at picking up either a takeda or stillen intake, berk hfc, fast intentions catback and a cobb ap once they're mapped. My boss thinks even after those mods his e92 m3 would blow the z's doors off. I really have yet to see any 1/4 mile times or comments on pulling power after putting a full intake and exhaust (minus headers) with ecu reflash on the car. From what I've read on these forums about 50 hp at the crank seems to be a fair estimate. If thats true then thats 380 hp in a car weighing around 3250 pounds vs. the m3's 414 hp and 3700 pounds. What do you all think?

Modshack

I think your horsepower estimate is high, your weight estimate is low. He'll probably whomp you..

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CCCLXXZ

+1 - there is a reason why the E92 is a FR car and costs double the 370z.... bmw emblems don't cost that much

RCZ

I think if you pickup the power mods that actually give power, not the ones that just look pretty AND you get a reflash it should be pretty close. I've been in several M3's and they are quick, but not THAT quick. I'm sure I would be pretty close to one in a straight line, probably faster than one on the track...

wstar

If you're just trying to make your vehicle better than some other vehicle in some specific stat, there's always someone with a better X than you. For example, you could put together a $45K package (car and mods) that makes a wonderful track car with great lap times, and still get blown away in the 1/4 mile (or on the street, not that I approve) by some POS $3K job someone did with a beat up 80's mustang and a huge stroker V8 in it. Sure his car sucks to drive, is uncomfortable, and can't corner or brake for crap, but he's still going to beat you in a straight line for a fraction of the cost.

So build a vehicle to make yourself happy, that's going to be a good all-around performer on a track, and go track it, and ignore the E92 guy

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mpp9

I've seen dynos from a stock m3 and a modded 370z and they're scarily close in the power curves relative to how flat the torque is from 3k to 7k rpm and peak hp around 8k rpm. They couldn't feel or sound any more different but thats where the truck like sounding engine in the Z is trumped by the effortless feel and tech of the m3's v8 which then justifies the m's hefty price tag along with it's insane handling in such a heavy car. The guy owns the m3 also has a z4m and a maserati coupe so I just think it'd be funny to trump them all with a couple thousand in mods with a n/a car vs. an evo or sti.

DIGItonium

Ask for a raise ;-)

I'd probably like to get one of those Euro-spec 400HP Evos... then again, that's like GT-R realm.

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ZKindaGuy

I would just tell your boss that you really don't give a rat's azz whether his car is faster or not. Enjoy the car for what it is...not based on matching up infantile egos by way of something that is totally baseless and meaningless.

Phimosis

Edmunds inside line tested the 2008 M3 coupe at 12.9 second quarter mile, 111.1 mph trap speed. If you can get your 370z to run that, it will be the fastest car on this forum.

mpp9

To respond to Phimosis, Edmunds is pretty horrible at running cars, I'd stick with motortrend at 12.7 to be fair to the m3 with a similar trap speed around 111. Motortrend has the Z at 13.3 at 107. Semtex and RCZ are well over 300 whp and you have all their mods plus a reflash so I'd say if 12's aren't a possibility with that kind of power I'm missing something. To respond to RCZ, I'm quite happy with the car as it is but if you can make the car that much faster and retain its driveability, comfort and reliability then it's a win win especially at a fraction of the cost of the original purchase. Didn't buy the car to indulge my ego nor would I mod it for the same reason, just want the best car for the money.

SnakeBitten

I think it was MT that got an auto 370 to run a 13.2 @ 108mph if memory serves so you are not far off stock if this can be repeated.

I remember seeing a PDK Carrera with only 385 hp absolutely destroy the v8 M3.

M3 V8 vs Carrera PDK [M3 is modded lol Porsche is bone stock]

Now the 370z has nothing like that PDK and is not rear engined with no driveshaft to add to parasitic power loss to the wheels and I know its not apples to apples comparing the 370z auto to the PDK but you wont need to be near the M3's power output to run with it as the Z is a good bit lighter and with those mods and tune you shoud be putting around 325-330rwhp. You would be very close to the M3 stock whp with a weight advantage. So it seems on paper you should have a chance at the very least to run with one. Lots of mag/bench racing we are doing though. Thats why you run em though cause paper numbers dont mean squat sometimes. Case in point the GTR lol.

BTW Ive seen tests of the M3 trapping as much as 113mph.

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mpp9

It'd be interesting to see it. I'll have him drive my Z when I do the breather mods and reflash and see what he thinks.

KillerBee370

Typical M3 douche. God someone shoot me if I ever drive the executive c*ck swinger mobile (aka M3).

Just take him in your Mazdaspeed 3. Needless to say, he may beat you in a quarter mile but he certainly won't be "blowing" anybodys doors off.

Phimosis

Don't mean to be argumentative, but 108 trap seemed way too fast for a Z, so I googled MT and 370z and I see 13.3 @ 105.7.


On a retest comparo against the Mustang and Genesis coupe, it ran 13.3 @ 107.1.

I know this is quibbling in the details, but no 370z has ran a 12 second quarter mile and when they starting getting close to hitting the 12's, people will be quibbling over thenths of a second.

I love my Z, but they are just not that fast....At least until someone gets a forced induction kit to market.

KingDavid

Apparently some 370z's have hit 12s already at some track in ohio. And APPARENTLY someone on here hit a 12.9 bone stock but on drag radials from a 350Z.

But no proof though.