Havn't found cold air intake for 2002 Q45???

[neagan]

I've been searching all over for some sort of bolt in air intake for my 2002 Q45. I unbolted the plastic covers that restrict air flow to the factory air filter assembly and she wants to suddenly burn rubber all over the place!! what a HUGE difference!

Has anyone put together an assembly that works??? Nitro

[Infinitiguy19]

No offence but are you going bu seat of the pants feel or are you getting the results from a dyno?

I ask because I really doubt you can rip tires in that car off the line on dry ground with or without a "cold air intake".

But I know of none avalibe which means you may be the first to make a CAI for the F50.

But if the loose piston rings don't kill your engine your "CAI" just might. Because if you search you will find a topic that compares airfilters. I might have a link to it in my signature.

But the improtant things to remmber: Less restrictive=more dirt into engine and vice versa.

[loystock]

Unless it's been done before, you are better off having the ECM\TCM re-programming + gas pedal replacement for improved performance.

[lino]

I realize that you have an F50, but maybe nico member Tgvince may be able to help you:

zerothread?id=26004http://forums.nicocl ... d?id=30966

[maxnix]

Has anyone put together an assembly that works??? Nitro

Yeah, Nissan. It comes stock on the car.

Someday he will read enough to complete his profile!

[elwesso]

I am not familiar with the F50 intake setup but its usually not worth messing with on early Q. Not applicable to you..

I would be interested if there would be a way to redo the plumbing so you could still use the factory air filter...

[neagan]

I own 9 running vehicles; three of which are Infiniti (G-37/QX4/Q45). I race the 37 at my local Infinion Raceway and placed the most wins last year in the non-V8 class. This is not meant to be for bragging, just want to let those who need reassurance that I'm not into wasting anyone's time.

I've had several friends over the years that have had '45's and have always loved the ride on the touring models. We have wicked backroads through the redwoods going out to Hwy One. They are plagued by potholes almost deep enough to lease out to Section 'Eight' renters. I happened to run into someone last week who needed money badly for this 2002 I just bought. It drives nothing like the Sport/Touring editions most of you have, and I was so surprised that I couldn't get the tyres to chirp even from a dead stop with the wheels cranked all the way over to the far right/left.

I take it that this computer learns from driver's feedback just like in the 35s & 37's. I dumped in "Sea-Foam", fed it with higher octain, pumped the tyres up to 40psi, unbolted all the engine plastic covers, installed a clean air filter with the subsequent results being one peg-leg burn out for the distance of three houses before letting off the gas. I'm glad for the big response difference, but am frustrated that it didn't come with a Posi rear end. Is that something that the Sport model got???

I always take a newly aquired vehicle and do a full mantainance run through all the fluids, hoses, belts, alighnment, tune-up, etc and if it's possible, I go to free-er flowing intakes and high end fluids like Royal Purple/Redline. Thus the reason I've been hammering out a search for the intake. I'll gladly build one down the line, BUT if there's something wrong with Cold Air Systems in the way they work with the loose pistons design, I'll gladly stick to the factory set-up. Thanks for the suggested link(s) to check.

I did call my Infiniti mechanic to leave a message about the accelerator pedal/ECU/Trans ECU update but havn't received a phone call back yet. I'm also glad to have read the feebback that some of NICO supporters put out there regarding the Denso Iridium issue. They worked great in a Supra I had but played absolute havoc with the cylinder temp in my IROC engine. I've always stayed away from engine additives but am now paying attention to the B&G? or whatever the correct name is that many of you are swearing by.

For busy people like me who insist on top of the line products EVERY single suggestion by Product name or 'creative licence' is definitely Most Appreciated. I would have though that an engine with 340hp/333tq would absolutely be able to spin the rear(s) tyres. Good thing I had a group of other local hot-rodders there to laugh at all the smoke and the discovery of only one tyre spinning! I'll have to figure out what bolts underneath for the longer term plan. Again, many thanks for the responses to date! Nitro-Nicky

[neagan]

oh, If I'm starting to understand this engine better, I would think a free flowing Air Intake would tend to add minimul Hp numbers but would free up quite a larger number in the Torque curve area- allowing the engine to take a quicker leap forward into the torque band? Thoughts? Nitro

[Infinitiguy19]

I was so surprised that I couldn't get the tyres to chirp even from a dead stop with the wheels cranked all the way over to the far right/left.

I take it that this computer learns from driver's feedback just like in the 35s & 37's. I dumped in "Sea-Foam", fed it with higher octain, pumped the tyres up to 40psi, unbolted all the engine plastic covers, installed a clean air filter with the subsequent results being one peg-leg burn out for the distance of three houses before letting off the gas. I'm glad for the big response difference, but am frustrated that it didn't come with a Posi rear end. Is that something that the Sport model got???

Why and where did you use the seafoam on your Q?

Were you sure the VDC was off when you tried to spin the tires?

No Q45's ever had "Posi traction*", That was Cheverolets name fo LSD just like other manufactures had there own. 1990-2001 Q45's had VLSD AKA Viscous Limited Slip*. The later 2002-2006 Q45's has just plain old LSD and electronics to make up the rest for VLSD. They did that to save money.

*http://en.wikipedia.org/wiki/L...ntial

[neagan]

A Good Evening to you, Paul-

Thank-you for getting back to my post here. Sea-Foam is a product noted amongst many 1/4 mile dragracers as the best 'off the shelf' cleaner for GM/Ford/Chrysler fuel injection products. We used to have to get it from Napa and other higher quality auto parts stores, although the Autozone type discount carriers have started carrying it. Cost is approx $9.50 for the 16 ounce cans and gets added to a full tank of gas.

What it's also used for is to clean out crap build-up from EGR systems and air plenums, such as the Supra plenum or Chevy's TPI intake box. For those issues we tap into the vacuum system near the power brake system and let the engine suck in about 1/2 a bottle. If there's a bunch of that sticky fuel/oil buildup it will blow so much smoke out the tailpipe that some people's neighbors will think your car and/or house is on fire! It's great for old american cars that will barely pass/fail smog exams!!!

I keep running into references on this NICO board for the B&G Products so you all must have found a high end manufacturer. I take it, that they're not so easily available? Yet I see comments that people add B&G to everything from transmission to power steering?

Regarding Burn-out- My G-37 has the VDC button, so I knew what to look for when I test drove this Q45 car. I built a track purpose 1988 Camaro to handle the rigors of drag-racing and the '37 is supposed to be my wife's car. However, I took it out one wednesday evening when my IROC was down for a part and her G37 was so dang accurate & predictable that I took home a first place trophy that same night! I keep finding excuses to take her car out for the weekly novice races at least once a month!!! Infinion racetrack is only about 15 feet above sea level and I run a consistant 13.9 all evening long leaving off idle and with a full tank of fuel. I've hit 13.7 a couple times but that was more of a fluke with perfect traction and cool/moist air.

Are you one of the BG product users?Nitro

[mcrews]

I've been searching all over for some sort of bolt in air intake for my 2002 Q45.  I unbolted the plastic covers that restrict air flow to the factory air filter assembly and she wants to suddenly burn rubber all over the place!!  what a HUGE difference!Has anyone put together an assembly that works???  Nitro

I put one together using the scope in the IMPUL body kit.I left the top part of the system stock.

I removed the resonator mushroom that hangs below the stock air box

then custom bult this assembly:





I do a lot of freeway driving and my mpg picked up about 3/4 of a mile.I have not run a dyno and I don't try to 'feel" if it's any fast.


Modified by mcrews at 9:21 PM 8/22/2009

[elwesso]

BG products are usually what dealers use but they typically arent available unless you order them online. Sometimes ive heard parts counters at dealers have them behind the shelf..

I think the best way to get their stuff (which are primarily additives for maintenance, they dont have much in the way of basic fluids) is to get them off ebay... I usually use the BG 44k fuel additive and the quick clean for engines and automatic transmissions... They make some other stuff too that im sure works well..

Anyway, Im not sure what cars got the LSD's but I believe in the Y33 (2nd gen Q) is when they started going away from the viscous LSD to an open diff with traction control/VDC.

[seldomseen]

LOL---take some videos of you burning rubber in your F50.

[maxnix]

oh, If I'm starting to understand this engine better, I would think a free flowing Air Intake would tend to add minimul Hp numbers but would free up quite a larger number in the Torque curve area- allowing the engine to take a quicker leap forward into the torque band? Thoughts? Nitro

If the former were true, and since the latter is a number calculated from the former number, then the latter number would increase also. Nissan V8 breathe pretty well.

Might follow a thread in the M45 section about someone who claims a shop called uptune (?) has increased performance about 10%, which is substantial on an OBD II engine.

[maxnix]

Sea-Foam is a product noted amongst many 1/4 mile dragracers as the best 'off the shelf' cleaner for GM/Ford/Chrysler fuel injection products.

Remember, a "drag racer" thinks 15 seconds is along time. We tend to think more in 100K mile increments.

[maxnix]

LOL---take some videos of you burning rubber in your F50.

"Burning rubber" is a trivial task in a nose heavy front engine rear drive car if the rear tires are hard or slick enough. See high schoolers in Mustangs.

[Q45tech]

My thoughts are [from a mechanical scientific ecological basis] that anyone who allows a vehicle engine system to fail before 20 years and 300,000 miles deserves to be punished in public on the town square. No branding but stones and tomatos are ok.

Consider the previous energy wasted in creating [human minds] and building the vehicle not just that that was purchased after it was sold.

I never consider something true until it have been MEASURED by 25 people accurately.

[neagan]

This is all true; and I can quickly loose sight of the big picture while I'm diligently searching for as much 'instant throttle' as possible. I had this idea in mind that 340hp coupled with almost the same amount of torque is in the Mustang/Camaro range and is also the entry point for 'drifting' abilities. Even my 200hp Lexus SC400 had no problem leaving a 50' length of rubber when I was feeling a bit over-energetic.

It's not something you can explain to someone who just dosn't get it. To me these Q45's are the perfect sleeper performance car. I know I'm going to enjoy this one even more once the suspension is tied down. I dropped in a K&N replacement air filter cartridge and will quickly add a sailboat pass-through on the factory box for non winter driving. I'm sure many of you already have installed a pass-through on earlier generations. (the round mechanism with the thin screw on & off door?) (they were an easy mod that worked super well expecially on Toyota Airboxes)

MCREWS pics are closely matching the Ram-Air system a lot of 3rd Generation Camaro owners eventually do. I took a quick peek behind my front bumper and see that there's room for it. However this next week will be spent on locating a Transmission 'dip-stick Jimmy' kit for the factory sealed off transmission; what a rip-off!. What was the first year Infiniti started deleating dip sticks???? Nitro-Nicky
Modified by neagan at 7:12 PM 8/26/2009

[qsiguy]

I noticed a comment about Iridium plugs above and wanted to add that I have been using Iridium plugs in my Turbo Q for a couple years now with no adverse effects or issues I have noticed. Mine are 1 step cooler than OEM to aid preventing detonation under boost.

FYI