Rock

My brother has a 740I and I have a 740IL. Both with the m62 engines, they werent nearly as quick as the 350 was stock.

I hacked out the catalytic converter and mufflers, opening up to straight pipes. The gains were significant to say the least. Throw it into S mode and youre good to go. Id be willing to bet theyre quicker than a stock 951 now.

Nissan 350z- Weight ~3200lbs 287hp/260lbs of torque.
BMW 740I- Weight- ~3700lbs 282HP/300lbs of torque.

So take my 740IL and then do a free flow exhaust like I did, and here are number taken directly from Dinans website under their free flow exhaust with chip.

"Maximum Horsepower Gain 17 @ 6500 rpm
Maximum Torque Gain 14 lb/ft @ 6500 rpm
Point Value 3
Peak Horsepower 311 @ 6000 rpm*"

Not saying those are my exact number, but youre taking a car that now has ~310HP vs 282HP car. Granted its 500lbs lighter.

I could be completely wrong but ive driven 350z and I am not impressed. And maybe I just ran into 3-4 people who dont know how to drive their cars.

seattle951

You could put the Z in the trunk of the BMW 740iL or 750iL. If I am not mistaken, the 750il weighs a few pounds under 4,600 lbs (14.1lbs/hp) and a 0-60 time of 6.7 seconds. The 740iL weighs in at 4,300 lbs with 15.2 lbs/hp. The 740il is probably around the 7 second mark for 0-60.

The Z is under 13 lbs/hp with a 0-60 of 5.6 seconds.

Rock

"I just had the Dinan engine software done this month, thats my only mod so far. Like I said I'd need a gtech to know for sure, but with friends in the car and doing several 0-60 runs we decided it was right on 6sec if not maybe a bit quicker. I had also filled a half tank of 100 octane at the pavilions.


Motortrend claims 0-60 is 5.9sec!!! - http://www.motortrend.com/roadtests/...ort/index.html

TheAutochannel claims 0-60 in 6.17sec- http://www.theautochannel.com/vehicl...bmwisport.html

Also I want to point out the actual 0-60 was around 7sec but not more (with 4 people in the car). The 740i weighs 4200lbs+4 people(700lbs give or take) =4900lbs, with just me in the car I would expect 6sec 0-60."

"I have Dinan stage II engine software, stage 3/4 transmission software and the, CAI. My 7 is 5.6 sec. 0 - 60."

"I can keep up with my '00 M Roadster. The M has a jump on the line, but the 740 pulls on it all the way up to 6750rpm then shifts to 2nd and it keeps pulling! I also need to keep the traction control
off or it will reduce power to keep my 285's from spinning!

The M is a 5 +- .2 sec car "

Taken from Bimmerforums.com.

I was wrong about the weight tho. I too have to turn off traction control to keep my wheels from being limited

I wouldnt believe it unless I had seen it with my own eyes. But there is no way that I could pull on Z's like that unless the 740iL were quicker. Chances of having 3 bad drivers is just not possible.

Plus even if a 0-60 of a Z were quicker, the 740IL is a dawg in the lower gears. Once it gets past 2nd, that thing goes to 120 like its no problem. Id be willing to bet the 740IL is quicker than my 951 cabriolet used to be.

CarbonRevo

I have ran two SRT's before. One that was stock...lol...that wasn't even a race!

I also ran a full bolt on SRT...can be seen in the video below. I didn't fair too bad. From the dig, he gave me 2 cars. We were also racing on a VERY dusty road. The roll race was much better. And as far as the CRX goes...I didn't get my *** whooped like the video shows. I gave him 4 cars AND the honk. My car is the black one in the races.

944obscene

I've driven multiple 350Z's AND G35's as well as my 951. I'd have to say I like the feel of my car more. The one thing I'd change is the turbo lag. That's it. Other than that, I prefer the old-*** porsh to the depreciation box that Nissan calls a sports car.

Not to say it isn't a sports car but they're gonna be like 240's in the near future. Which would you rather have? a 10k Z car or a 10k Porsche?

Rogue_Ant

Yep, that is about exactly how run-in was. SRT-4 had full bolt-ons as well
That is when I decided to find a bigger turbo. A couple years later, and I've still yet to have an SRT-4 even come close.


-Rogue

seattle951

There are 0-60 times from different testers all over the web that range from the 5.9 you have into the 6s and 7s.

Like I said, I drove both the 740 and 750 for years. The 750 was a n incredible car but I never considered the car fast. It was huge luxury car.

What are your maintenance costs like? I ended up dropping both cars becuase of the monthly maintenance costs were exceeding the month payment and insurance of new Mustang GT. (I was even able to add a dealer installed supercharger and still pay less per month.)

When the economy improves, I plan to pick-up a one year old BMW 750 and keep it until 70k miles and then trade it in.

lee101315

Lets not forget that a stock 951 makes 185ish hp to the wheels. A stock, non S 951 will NOT keep up with a stock Z. End of story.

Bmw 740s and 750s are nice cars, I work on them for a living. They are pretty quick on the highway. I didnt know people were racing them, lol

tconn

Few years ago, with my then stock 89 951, I ran autox
against a guy with a new 350Z. The first 3/4 of the season
it wasn't a competion, I always beat him. By the end of the season, with him going to autox school, new tires, against my worn out tires and by then worn out 18 year old struts,
he started to be very competative. I think he may have bested me at one event.

FSAEracer03

...


wat?

CarbonRevo

What don't you get?

I think a stock 951 can run with a stock 350z. My chipped only 951 was pulling away from a 350z with dual cans, intake piping/filter and suspension. These were of course highway runs...but I didn't have a problem.

However, the Mazda 3 turbo wagon or whatever it is...watch for those. Those can be made into 300whp cars easy and you won't know it. I got lured into a race with one one night that was claiming to be stock except for an intake (pipe and filter). He went out and put 10-15 cars on me. Come to find out he's 300whp with suspension. My car was only 240whp and I had an extra passenger (so we had roughly the same race weight).

Better?

alxdgr8

My friend has a MS3 that ran a 13.4 or 13.5 stock with just a K&N drop in filter. Those are some pimpressive cars.

Rock

Cost of parts. All labor is done myself. So far on the 740IL i had the cats fail, welded new ones in. Changed the oil/ spark plugs, air filter, etc. thats it so far.

Bought it outright for 1000 dollars so I dont make a payment either.

lee101315

Was that an E32 or an E38 7 series? Thats pretty cheap either way though.

No way a stock 951 will keep up with a stock 350Z. No matter how you slice it, it doesnt add up. I had several highway runs with Zs when I was stock and modified... there are many Zs around my area that are competant drivers

+1 on the mazda3 though, definate sleepers

Euro951

Lets introduce a new car into the lineup... my old 2004 Forester XT turbo 5 spd... was a bit faster then a stock SRT4 but would get walked by my friends 350z track edition above 90mph... up to 90mph it was even.... that Forester was one hell of a sleeper....