Not the 2002 Q45 but the old 90's Q45. I told him Q45's were quick but he says he could whip me from a dead dig or freeway roll from 60mph. I checked his mods, he doesn't have anything but the usual exhaust and filter. Should I take up his offer and hand him his *** or is there something I dont know?

 

He put an exhaust and intake on a Q??

I know my friends mom's '98 Q has 260HP, and they are all heavy as hell.

You have a 2002 right? Your gonna destroy him...you'll rape him on the highway AND from a stop. Those Q's are just too damn heavy and underpowered. If you race him, please race for gas money becuase it's gonna be a waste.

 

Any unmodded pre '02 Q45 can easily be beaten by a stock 4th Gen Maxima. Been there done that. And if he has the 4.1 liter engine it would be even easier.

If you have a 2002 he'll have about as much chance against you as a one legged man in an a$$ kicking contest.

 

that would be a very close one because those things have alot of torque, if u have a 6spd u should be able to jump him right off the line. ive driven those and for some reason 0-20 is just horrible. but after that is just keeps on accelerating fast and faster. so off the line is about the only advantage u got, if u start at about 60 his second gear goes well past 80 so it gonna give him the edge.

 

You can't be serious...please tell me you have been drinking or smoking the happy hash..

 

The older 4.5 liter Q's were rated at 278hp. The 98 you spoke of is a 4.1 liter engine with about 266hp. The orignal Q45's were faster than the later ones. Except for the new one.

 

still, the maxima is going to destroy it.

 

im talkin about the 4.5L not the 4.1 u mentioned which i personally have raped in my car and its an auto. that 4.5 does make a good(approx) 20lb ft more torque threw the whole powerband so yeah im serious, but they still die after 80. i was think what would happen if i got my hands on a 02 Q45 and threw in a custon exhaust and a 200shot of nos. u guys think it will pop? and yes im nuts but hey im willing to experiment. a near 600hp Q45 would be pretty fun.

 

alright thanks guys, I wasnt really sure if these cars were pretty quick or not. But we're going to be out tonight and I should run him around midnight when the cops dont roam around where we usually run at. I think he's been picking on too many ricer Hondas and is cocky about beating my Max, boy will it be a rude awakening when I tear him and that land yacht a new one!!

A friend of mine who has an I35 tells me I should be careful because he's heard that they can be pretty fast but I dont buy it. I'll keep you posted on what happens. Stay Tuned!

 

I think it would be a big waste of money. Why spend 50,000 dollars on a flagship luxury car and then destroy everything it was built to be? With the money you'd waste on that you could have a 9 second supra, or a 2003 SVT cobra with around $16,500 to spend on it...can you say FAST?

The new Q's are tight though...Infiniti claims 5.9 0-60, while car and driver got 6.7

 

No **** Sherlock. I already said that. Read my other post.

 

i dont really care, i already know all of what u just said. the thing is that its not my car. i just dont know if that engine could take a 200shot. i was thinkin of throwing it in with that new EFI injection holley just came out with that goes on in between the fuel injectors. you are right though id thater ger a svt cobra or supra.

 

I would venture to say the original 4.5 liter would easily take a 200 shot with NO other engine mods at all. Thats the period when Nissan was over building the crap out of their engines (putting a 500hp capable crankshaft in a 140hp SR20DE). If thats what you want to do then go for it. The trans could be a different story though. You would need to read up on that.

 

you know what ur right, i was think about the trans and nissan great rep for their autos. the 200shot and the torque it will produce will most probably rip the trans off the engine block. but yeah i know what u mean about the period when nissan overbuilt their engines. have u seed the comparison ot the sr20de internals next to the new sentra seR? they are almost twice the thickness, especially the rods. atleast the VQ hasnt suffered much.

 

The Q45's engine (2k2) is the same exact one used on the Indy car except for the type of gasoline used and a little bit here and there. But internally they're the same.

So i would tend to assume that it can and will handle more power than what it comes with stock from the factory.

 

It was only the exact same engine at first. Untill 2001 the Infiniti IRL engine was an off the shelf VH series engine block (but with all custom internals). It was way too heavy to be used for this type of racing but did make about 650+ hp. In 2001 Infiniti released the 35A V8 engine which was race only and shared nothing with production models.

 

B.A.D. Q45 - "Love at First Sight"





The "Q" story begins with Doctor Rex Birkmire's insatiable need for speed and yet insistence upon the highest quality automobile. With a wife and three kids it was necessary to have a sedan that holds at least five people. Rex describes himself as a doctor by day and a gear head by night.

He fell in love with the Infiniti Q45 when he test drove a used model five years ago. When given gentle input the car yielded a quiet, comfortable, luxurious ride. This is all nice for a time, but when you want to put your foot to the floor you would think that Dale Earnhardt's 600 horsepower V8 was under the hood. This was even stock. The engines just howl with four valves per cylinder and four cams. The first time Rex test drove a Q45 and put his foot into it, he was going 140mph before he knew what happened (these cars will do at least 170mph when the top speed limiter, which is set at 155mph, is taken off).

Wide/Tune

Rex has the tuner/ illness and he always has to tweak and tune his cars. With the Q45 he started with Eibach springs for a 1 ½" drop. This gave him improved handling and an aggressive stance. Then he put a set of OZ wheels; 17" in the front, 18" in the rear with 235/40/17 Dunlop SP8000s in the front and 255/35/18 Dunlop SP8000s in the rear. That made a huge difference in the traction and handling and the Dunlops are very quiet due to their high-tech staggered tread pattern.

Compu-Tune

In search of more horsepower, Rex purchased a Jim Wolf ECU, which took the top speed limiter off and added 36 horsepower at the top end. The redline was advanced from 6800 Rpm to 7200 Rpm. This dropped elapsed times from 15.1 to 14.8.

Exhaust-Tune

A stainless steel BORLA exhaust was added, which yielded another tenth in the quarter mile and provided a wonderfully quiet ride when cruising easily through town, but provided a hearty growl when stepping hard on the gas.

Nitrous Oxide-Tune

Nitrous oxide was originally provided Jim Wolf. This system uses a Jim Wolf ECU upgrade to run a dry nitrous single fogger system through the throttle body. ET times dropped accordingly, but my sense was initially that the jets were not synchronized, that the jet was too small and that the engine was running too rich. After making numerous dyno- runs and track runs we finally settled on the proper jet range for the nitrous oxide, given the computer's calibration, which was a .67 to .71 jet. ETs now dropped even lower, to a best run of 13.2 at 101mph.

Fuel Tuning

Takash Racecraft fabricated a race gas system that can be switched to with a flip of a switch on the console. This ends any worries about pre-detonation when running on the bottle.

Trans-Tune

Transmission work was done to fortify the transmission. The torque converter was modified to increased the stall-speed and the valve bodies were re-drilled to provide firmer shifts and the clutch faces were Kevlar-lined to handle up to 1000 horsepower. This transmission can come in three stages , depending upon what the owner wishes to do with his particular transmission. These changes netted a total of 3 tenths in the quarter mile for consistent 13 flat passes.

Differential Tune

B.A.D. has developed a number of ring and pinion options for the Infiniti rear-end ranging from 3.3:1 to 4.11:1. A 4:11 was put in our project car and the off-nitrous performance was staggering. There is probably no single thing that you can do to the Q45 to change acceleration characteristics more than to add a 4:11 rear end and yet the top speed was not affected.

Wheel Tune

Finally, Centerline wheels were added initially to the rear because rotational mass reduction is so significant in quarter mile times. The rims, which are approximately 10 to 15 pounds lighter than the OZ cast aluminum rims netted at two tenths to three tenths gain in the quarter mild times giving a best run of 12.9 at 105mph. Recently Centerlines were put on the front, a set of 17" Centerlines on Nitto 555 series high speed Z-rated tires, which are 205/50/17s. This cut off another two tenths of a second and provided the best quarter mile time yet of a 12.6 at 108mph.

Final Tune

The B.A.D. Q45 is great for the street and track. It gets loads of attention, in part due to how unique it is and because it is such a sleeper. The fans go crazy when we start running 12 second quarter miles. They also like the fact that our 60 ft times are 1.78s and that we lift the front wheels off the ground anywhere from between 6 to 12 inches. Not bad for an automatic transmission equipped luxury sedan weighing over 4000 pounds!!

Stay tuned, Y2K plans for the B.A.D. Q45 will involve a super charging system with nitrous overblow as well as a new billet aluminum torque converter, which should, according to the manufacturer, cut at least five tenths of a second off quarter mile times. Total horsepower output should be approximately 600 to 700 horsepower. Elapsed times will drop into the 10's and the whole package will continue to be a streetable daily- driver.

Sources:

B.A.D. Performance
Eibach Springs
Jim Wolfe Performance
Superchips
Dunlop Tires
N.O.S.
Centerline Wheels
Mickey Thompson Tires
Takash Racecraft
Borla Exhaust
K&N Air Filters
Level 10 transmissions

 

You guys gotta admit the new one would be a different story. Weighing in at 3800 lbs with 340hp at 6400 and 333tq at 4000, this car is no joke. 0-100km/h is 5.9s and 400m is 14.5s The BMW M5 has 394 at 6600 and 368 at 3800 and weighs 4024lbs. 0-100km/h is 5.2s and 400m is 13.7s. The two are close in every respect except price. Spend 10K difference on the Q45, and see where the M5 is left - in the dust.

 

Here is a link to Birkmire Automotive Design (BAD)

http://www.nissaninfiniticlub.com/members/badq45/

I doubt to many of these Q ships exist. If you see one, run screaming! You WILL get raped... repeatedly!

 

OK whoever said this car had 278 horses lied to me!!! This car has to be putting out around 300 or more. Does anyone know if this has anything to do with the japanese 280hp limit or whatever during the early 90's? Anyhow, it's got to be making more than that.

I promised to post what happened so heres what went down. We met up at BK along with my buddy with the I30, had some sodas and I asked what mods he had. He told me he had exhaust, K&N and Jim Wolfe(?) chip? From there we took it to a certain boulevard where I run regularly and mutually agreed to do a dead dig from one light to the next. Kept the revs close as I could to my sweet spot, appx 2800rpm. Light turns green and I drop the hammer on him with no tirespin and immediately creep out ahead by a little over a car length. It pretty much stays that way but I noticing him inching closer and closer but its when I shifted into 4th that he pulled even. I didnt mishift or anything but I'd probably attribute that to that car's wide 1st and 2nd gears? I swear if I could have shifted just a millisecond quicker I mightve kept about half a car length ahead BUT a loss is a loss no excuses. The distance from one light to the next is about a quartr mile give or take and I shut it down at app 100mph with him ahead of me by a full car length. If I tightened up that 3-4 shift, who knows? I did have him throughout most of that run. Anyway, next chapter:

Second run was done on I84 S bound. We were rolling alongside one another at 65mph. He did the customary three honks and I immediately downshifted. We were neck and neck up to about 90 miles an hour where he was again beginning to walk away. By 115miles an hour the gap swelled to a car and a half. I didnt see the point of endangering my life and shut up shop at 125 where I was STILL getting walked. By my estimates he was doing a buck forty. So there you have it, I got beat but not by much. With a few mods I could give him a run for his money next time. I'll also think about get wider wheels and Zrated tires next time. The V-rated yokohamas I have on were very stable and confidence inspiring beyond 100mile an hour.

I'll be a man about his loss and eat my crow. I still think I should have had the first run and maybe find the perfect sweet spot for doing a highway run since this was the first time I raced from a roll. The Cattman YPipe and headers couldnt come soon enough.

 

The first 16 months of production seen the Qs come thru with about 300-305 HP, the 278 HP rating was in underated for insurance purposes, if he had the other mods he was putting out some good power, the Qs second gear takes it to 90 mph wich is about 7000 rpm, third takes it to 140 at 6800, then overdrive goes till when ever you get scared, I ahve had mine a little past 150 with just a rear section exhaust, would ahve paid to see the race between you guys, it must have been a great site to see to 4 door nisom products going at it, just remember these things roll n the big end like you wouldnt believe they just keep going and going.

 

one more thing, they tip the scales at 4300 lbs and have a CD of .32.

 

good race

 

I'm curious, I have a 5 speed 2000 and my third goes to 100 mph (160 km/h for us Canadians).
You mention you shut it down at 100 mph. My question is, why did you shift to 4th? Or is the gear ratio on a 2002 that much different? How fast you going when you redline 3rd?

Just curious...

Axel

 

Different. The 2k2's have 6 gears to play with

 

I was the first to mention the 278. And I did NOT lie to you. They were rated at 278 from the factory when new. That car with the mods you listed probably was putting out 300 or more. I have raced an older Q45 in the '98 Maxima I had. Bone stock I pulled away from the guy from 80 to 120 MPH. It was the real Q45 not the fake one (Q41).

 

why do people say... buy the cheaper car and use the money "saved" to buy mods? am i the only one that finances my cars? it's true, i could've bought a civic instead of a maxima and wouldve saved a lot of money... but that only means a smaller loan amount, not extra money for mods? granted, a smaller loan amount does mean a smaller monthly payment but seriously...



*shrug*

don't mind me, i'm just rambling.

 

So how fast are you going when you redline 3rd in a 2002?

 

I don't have a manual, but on my auto i've managed 120-125 before i went on to 4th.

 

This race went exactly has a I thought it would for a 2k2 6 speed vs a modded 90s Q45. The Q45s really don't come alive until around 40mph due to their super long gearing. They behave very much like a 90s BMW 7 series which means they are a little slow intially and then they just keep going in the topend. Most stock 2k2 6 speeds are lucky to get 95mph in 1/4 mile while the stock Q45s were getting 92-94mph. Throw in an intake, ECU, and exhaust and you'll be looking at 96-99mph trap speeds. I'd be willing to bet there wouldn't be many NA 4th-5th gens that could hang with this car after 100mph.

The 98.5 Q45 (last generation bodystyle) had a smaller 4.1 liter motor making 266hp, BUT it also weighed 250lbs less. The reduction in weight more than compensated for the lower hp and tq. The 98+s seem to be slightly slower and I believe that was because of weaker gearing.

Dave

 

I hear ya on that note, but some of us like to own our cars. This is why i mentioned the money saved. When you lease or finance, you dont own a damn thing until your payed up. I dont like borrowing things... doesnt sit well with me. Just my $0.10, my $0.02 cents is free

 

The only thing I'll get a loan for is a house. I doubt I'll ever buy a new car because there are just too many 1-2 year old cars that can be had for a much cheaper price. I'd rather invest what I save from buying used and not paying for interest on a loan. IMO, I'd rather be really comfortable (ie not worry about money) and have a car truely customized to my liking instead of having the "new car on the block or in the Org" of which I couldn't modify because I'm spending all my money on a car payment. Call me crazy, but I kind of like the "hunt" for a really immaculate used cream puff. My next "hunt" will be for a 87 Buick Grand National


Dave

 

Although this is no longer applicable because the markets are so crappy, back in say 1999, if you had 25,000 dollars and had the choice of either buying a car straight out or financing it, financing it was better. The reason was that you're putting 25,000 on something that depreciates. Instead you could pay monthly payments (with interests obviously) but invest the rest. In 1999, a ROI higher than financing interest was easy. Of course, nowadays, it's not as easy and although the theory still applies, it only works if you really know what you're doing (or you know someone you trust that really knows what they're doing).

In the long run, you were still paying more money for the car by financing it than from buying it outright but the money lost from financing was easily recoverable and one could make more money. (Cause we all know you need money to make money).

Just my 2 cents with interest....

Axel

 

VH45DE (all versions from 90-96 model years):

4.5L all aluminum V8 with 4 valves per cylinder.
hemispherical combustion chambers.(!)
Sodium filled exhaust valves (!)
VVT
Molybdenum coated cylinder walls.
6 bolt main bearings w/ a girdle.(!!!)


As a rule of thumb, the first 18 months of production must have been close to 300hp stock (declared by Nissan to be 280 DIN hp = 278 SAE hp, due to japanese gentlemens agreement to not exceed 280 DIN hp).

Lost a couple of hp to emissons and economy every year, finally dropped below the rated 278hp in the 96 model year after loss of VVT and gain of OBD2.

A well known internet personality says, the addition of a JWT chip alone, brings the hp to 317 and the torque to 337 lb-ft as these engines were detuned quite a bit at the factory, which makes this gain possible, usually chips dont keep their hp promises, this one is said to be an exception.
It also extends the redline to 7200 which brings the Q deep into the mid/late 90's mph in second gear.
This is a very safe mod with this engine as they were so well made originally (blueprinted all of them as a matter of fact, by domestic standards)
Also the VVT hepls make full use of the extended redline.
(I also have the JWT chip)

My compliments to the guy who raced the Q.
You must be a pretty good shifter and your car running strong for it to have been that close.

At hi way speeds, even a stock early 90's Q (assuming its been properly maintained, which is often not the case nowadays) can walk away quite easily from any 4 door short of a late model $55,000 plus BMW or MB (and still beats many of those).
The sodium filled exhaust valves make it possible for the ECU to run the engine hard even at speed and not have to worry about burning up the valves too much.
Nobody else except Nissan/Infiniti has had sodium filled exhaust valves in sports sedans ever.

Just figured I'd educate you guys a bit, as I had always assumed that Maxima drivers knew what a Q is, since we both drive large hi-end Nissans.

Having said all that, I have always liked Maximas and congratulate you gentlemen on your fine cars.

Fred...

 

www.stillen.com

Many parts for the Q!

 

I agree with this as I had a '91 that was a monster, just short of the GS400 in power.

 

Nismoguy it's only the "a" version w/ the active suspension (a la MB CL500/600) that came close to 4300 curb weight, the base 90-93's are almost exactly 4000 lb.

But good info otherwise, I see part of my post was not neccessary as you gave some good info, as it was.

Fred...

 

all i gotta say is craigmack u need to stare at lettermans pic a little while since u meant it 4 me and i was the one who came out correct. i know what im talkin about because ive ran Q to its limits and that 4.5 really had some *****. the torque was the main differance. but everything u said about the Q palmerwmd is more then just correct. those thing have ***** period. peace

 

amen.

 

Yes the gearing is significantly different with the extra gear in my 2K2. My third gear takes me to about 85-90mph. Like I said in the post above, had I shifted quicker it would've come out even. Truth be told a 5th gen Max would need big mods to hang with this car beyond legal freeway speeds. I don't know about stock Q45's but his modded was very fast on the topend. From a dead dig the results were the same as a race I had with a GS400.