NOS

[cmccort]

Hello everyone, My name is Corey. I am currently looking for a 1994 or 1995 Q45. My wife gave me the ok last week as long as I sell one of my Mercedes restoration's. I will have many questions but the first is regarding a 1994 q I am looking at with 136000 miles. Service records appear to be in line but the car has nos installed. Any potential problems or damage from nos on these car's? Any help would be appreciated.

Thanks

[konatown]

It's possible there's some damage to valves, ports, etc.

Who was the previous owner? A teen with money or a respectful adult who wanted some extra kick?

Glad to see someone else has found a hidden treasure in a sea of mediocre vehicles

[cmccort]

Do not know who previous owner was unfortunately. The car was well taken care of at least from an appearence stand point but I worry if the NOS was abused.

Thanks

[superuber]

Obviously your never going to know hard it was used. It's kind of a gamble. Whay system does it have? The JWT system is moron proof. What kind of shot? Is it still in tact?

[Rex]

You're in Phoenix, AZhitman (Greg) NICO's CEO is in that area, have him check it out.

It's a gamble, but if the install looks clean and there's the "accompanying" ECU tune for it, I'd think it wasn't some teenager slapping a 150 shot on the car and just running the snot out of it.

[elwesso]

is it that red Q on ebay???

If so thats a JWT setup and it looks like they installed a lot of the JWT/Stillen goodies...

[Q45tech]

The 75 hp jet JWT system came out when these engines were NEW and thus rarely abused.

Think twice about exceeding 75 HP* on a 13-17 year old engine without examining the internals for wear.

Based on typical numbers 75 HP ~~=65 lb/ft @6000 rpm and 130 lb/ft @ 3000 rpm, so average after 1st gear ~~ 90 lb/ft that's a 30% bump up.

[superuber]

http://cgi.ebay.com/ebaymotors...wItem

Here's that car. VERY nice! I don't like the color as much as others but looks very clean. Price seems close. Probably not a kid.

[elwesso]

Unfortunately I bet the interior is trashed... Why else would you have the ghetto fab seat covers?

[Rex]

Unfortunately I bet the interior is trashed... Why else would you have the ghetto fab seat covers?

The listing indicated seats "covered since new" and now the listing shows the front seats ... very nice.

I should never look at that listing again

[superuber]

Good point. The seat covers are for old guys. Wes, you're to young to understand! When you get old strange things happen and you look for all the cushion you can get.

As far as the 75 shot, I guess I'm waiting for my piston to whiz past my head with my 150 shot!

[cmccort]

Thanks for all of the feedback everyone. It is the car on ebay and the carfax is solid the seller claims is belonged to a mechanic. I am not sure about the ecu but that is the first upgrade I plan on putting in. Thanks for the help I am going to make an offer.

Regards

[maxnix]

It is the car on ebay and the carfax is solid the seller claims is belonged to a mechanic. I am not sure about the ecu ....

The most important are the service records, especially the Infiniti Dealer performed service history.

Carfax shows a owner history, doesn't it? Pay the previous owner a visit and offer him lunch, beer, whatever it takes to learn about the car.

JWT ECU assuredly is installed to run nitrous oxide.

[cmccort]

So do you think it is a safe bet that the ECU has been upgraded?

[maxnix]

So do you think it is a safe bet that the ECU has been upgraded?

Pull it and look. Don't see how it could run right if it is not. Can't imagine one would put NOS on and not upgrade it. Possible, but it wouldn't run well.

Like the Brembo. Wonder what's out back?
Modified by maxnix at 11:09 PM 5/22/2007

[superuber]

If it has a JWT nos system it has to have the ecu module. I doubt it has a ecu "regular program" update. It wouldn't pass cali sniff test. The nos system has two programs. Flip a switch and you have the nos.

[Q45tech]

Emission dyno sniffer test are limited to ~~2500 rpm cruise..............why every ecu software reprogram requires more than 50% load [usually 70%] and 3,000 rpm to begin.

[Q_SHIP]

Thats car has a look!! Bottle or not, it's pretty roudy looking.

[cmccort]

I am pretty stoked!!! I was able to purchase the car for $4250.00, less than what I thought I would get it for. I think I got a pretty good deal if all is as described. I will be flying to LA next week to pick it up so I keep you posted. I look forward to getting started on the upgrades and will look for any expertise anyone may have.

Thanks

[superuber]

Excellent! Plan on putting money into it if it has not had the regular stuff done-ie under plenum job etc...Nico should be your first resource for anything. The people here are well informed and alot of good info to read. I'm sure others will give more advice. Looking forward to having you here.

[bullittandy]

I am pretty stoked!!! I was able to purchase the car for $4250.00, less than what I thought I would get it for. I think I got a pretty good deal if all is as described. I will be flying to LA next week to pick it up so I keep you posted. I look forward to getting started on the upgrades and will look for any expertise anyone may have.

Thanks

The interior, wheels and brakes make it a good purchase at the minimum. You better become friendly with your local NOS dealer because everything I've read says that it is addictive!!

[paranoidjack]

I never really understood this....with NOS, everyone speaks about motor damage, etc....I would think there would be more stress on the stock cooled transmission and such with a 30% power increase....am I wrong? I would be more concerned about damaging the transmission than the motor!

[Q45tech]

The RE4R03A is rated at 305 lb/ft of torque vs the newer RE5 @ 333 lb/ft.

Obviously a 75 HP shot will exceed the peak torque by 100 lb/ft at 4,000 rpm this is 33% Higher than published rating.

Whether each 14 second run acts like 1,000 miles or 5,000 miles is unknown.

But the same thing happens with a ecu reprogram as the torque exceeds the rating................. maybe only 10-15 lb/ft or 3-4%.

Or a supercharger which would be 10-15% above specs.

Anytime you increase the torque you decrease the AT LIFE. The question is how much is tolerable?

Will 6 quatermile runs destroy a transmission probably not if it is brand new, will 60 or 600 For Sure.

Besides the Nitrous cost I would add $50 per Nitrous run to pay for transmission replacement.

Much cheaper than the $20,000 per run that top fuel racing requires.

[silver2k2]

Nice buy looks very clean. How is the active suspension? You do know this is a Q45a right?

[paranoidjack]

The RE4R03A is rated at 305 lb/ft of torque vs the newer RE5 @ 333 lb/ft.

Obviously a 75 HP shot will exceed the peak torque by 100 lb/ft at 4,000 rpm this is 33% Higher than published rating.

Whether each 14 second run acts like 1,000 miles or 5,000 miles is unknown.

But the same thing happens with a ecu reprogram as the torque exceeds the rating................. maybe only 10-15 lb/ft or 3-4%.

Or a supercharger which would be 10-15% above specs.

Anytime you increase the torque you decrease the AT LIFE. The question is how much is tolerable?

Will 6 quatermile runs destroy a transmission probably not if it is brand new, will 60 or 600 For Sure.

Besides the Nitrous cost I would add $50 per Nitrous run to pay for transmission replacement.

Much cheaper than the $20,000 per run that top fuel racing requires.

So basically, for someone such as myself intending to keep the car until igasoline is no longer available, ANY sort of performance upgrade is going to take from longevity. Makes sense, and it just isn't worth it (for me). Something's gotta give!

[cmccort]

Yes, I am aware it has active suspention but I thought all of the Q's had active suspention. I drove a Q here locally and ACS light was on and it rode horrible so I asked about the ACS on this vehichle and was told it is ok? So we will see. What kind of maney is involved in maintemance on the ACS?

Thanks

[silver2k2]

Well if everything else is good it could be as simple as having your accumulators recharged by Texasoil, doing active fluid flush and replacing the accuator boots.

If nothing has been done to it the accumulators are flat for sure. The active Q are the rarest here in the US, around 15% The rest use standard struts and shocks.

"OK" coming from a dealer doesnt mean much. A car with flat accumulators will not ride as bad a one with the ACTSUS light on but it also will be pretty harsh over things like railroad tracks as well, as me how I know.

Also those rims are nice but most likely they are going to alter the active ride as they are heavier then what the car's active computer is tuned for and it will over and under comenensate the rebound. I am going to have a set of the Forged BBS wheels that q45a came stock with if you want them.

The active suspension system is very complicated, luckily there is lots of information here on Nico.

I am not trying to rain on your parade here, just letting you know. If there is anything else you want to know just ask

Modified by silver2k2 at 8:22 PM 5/24/2007
Modified by silver2k2 at 9:12 AM 5/25/2007

[Jeff Williams]

Great buy!

If you don't loke what you get, call me. I will take it off your hands!

[cmccort]

What is a pop charger?

Thanks

[silver2k2]

A cone air intake made by JWT