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Infiniti q45 turbo kit Videos

Q45 TURBO 0 - 100 MPH

Here's the link to the complete build: //vh45det.com/viewtopic.php?f=3&t=4&sid=57f83317ed144314fab52a0cc878a625 It is running a Garrett T-76 Thumper ...

User Comments

power2theq commented on 12 Sep 2008

The turbo is in the engine compartment so I don't need a pump for the oil return. Check out my other vid which shows the turbo placement. As far as the engine, it is stock with the stock injectors. The 90-96 Q45 come with 370cc injectors, good for approx. 450 hp at 43 psi. I'm running a blow-thru MAF which enables the ECU to see the exact air flow from the turbo system. I'm also running a BEGI FMU which gives me extra fuel psi as boost increases. Final tuning was done with a wideband O2 monitor.

farahtjeuh commented on 11 Jul 2008

I agree, its very VERY GOOD actually for your car. My X9 is tweaked to 167HP (no turbo) (without the other extra's). its 0-100kmh in 7.8 sec, lol, not mph. Top speed 247kmh MAX. Its does have a 2.0 engine. Its not much power, but my drag-coefficient is 0.2875 (VERY GOOD). Thats what makes it so fast on the straight. I am willing to buy a Land Cruiser 100 series, just a lovely car, but the MPG is DAMN low and the DRAG is extremely HIGH! This car will KILL me.

power2theq commented on 12 Jul 2008

Your X9 is light enought that it would be crazy fast with a small amount of boost. Most cars can take 7-8 psi without any engine modifications. All you need to address is the fuel and ignition needs. I did a lot of mods on my car before I built the turbo system. I wish that I had just done the turbo first. Everything else was not the worth the trouble IMHO. Boost is the easiest way to improve performance.

power2theq commented on 15 May 2008

Are you running a MAP (Manifold Absolute Pressure) sensor or a MAF (Mass Air Flow) sensor? My car has the stock MAF sensor that is placed after the turbo. I have no problems with hunting idle. The key is to make sure that the ECU sees all the air that is coming into the engine. You can't have any open air or vacuum hoses. That throws off the idle and causes all kinds of problems.

power2theq commented on 13 May 2008

That sounds about right for the 0-60. It could be better if I can get the turbo to spool up quicker. As is, it is spooling by 3300 rpm which is not that bad for a large turbo. But if I can get it to spool by something like 2500 rpm, then the acceleration times would drop noticeably. Also, turning up the boost would make a huge difference. Right now, it's only at 6 psi.

power2theq commented on 11 Jun 2008

I stopped using Mobil 1 ever since they switched their base stocks to Group 3. The only good Mobil 1 oil is the 0w-40 which is still based on Group 4 base stocks. Currenty, I'm running Castrol Syntec European Formula 0w-30 which is an excellent oil. This is an excellent oil based on Group 4 base stocks. The rest of the Syntec line is Group 3 and is not worth it. Peace.

power2theq commented on 12 Jun 2008

It's pushing around 440 hp according to my calculations. The large exhaust side on the turbo lets the engine breathe much better at high rpms hence the dramatic power increase at low boost pressure. Once the turbo spools up, this thing is crazy fast. You really have to pay attention. Sometimes, driving it is a bit scary especially on tight roads. LOL.

tak915 commented on 09 May 2010

@Giancarlos106 im 16 to and my first car in a 1992 q45, i bought it for only a grand and i love it, the outside is honestly not good looking at all but interier is really roomy and the car has features tht no one at my school has, but it get horrible gas milage but i say if u can get a hold on one then get it

Aspie Otaku commented on 17 May 2013

Cool thing about Q45s is you can get them on craigs list in excellent condition for 5k or less. They are very luxurious very reliable and have the performance of a musclecar only with 4 doors. Its too bad most people dont find them as popular though and go to crappy BMWs and such and pay an arm and a leg.

power2theq commented on 10 Jul 2008

It's not too bad for a car that weighs in at 4200 lbs. Hope to improve upon it soon. I've upped the boost to 7.5 psi since the vid but the weather is too hot for a good run. How much power are you putting out on your X9? Sounds like it's a 11 second 1/4 mile car with a 0-100 mph in 7.8 seconds.

derekaggs11 commented on 27 Mar 2009

Amazing results, man. My first car was a '90 Q45. I loved the flat cornering and amazing V8 growl at midrange. I sold it after 3 years and bought a reliable but soul-less '96 LS400 and four years later sold that for a '96 Maxima SE 5MT. Fun and even quicker than the Q. Gotta love Nissan.

power2theq commented on 12 Jun 2008

The odometer has over 203k miles on it. The diff was rebuilt with 4.08 gears by UNITRAX. The LSD is still tight and I can light up both tires pretty easy but, eventually, the viscous LSD will give out and I'll have to do something about it then. I'm thinking of going with a Quaiffe LSD.

power2theq commented on 09 May 2008

I'm running at least 420 hp right now without any problems. My friend, QSIGUY, is running 8 psi on his car also without problems. The VH45DE can handle boost as long as the tuning is done right. As far as the limit of the stock engine, my guess is that it is somewhere around 14-16 psi.

power2theq commented on 29 Jan 2009

How can you tell a turbo is too small by listening to the wastegate? Just curious. Anyway, the turbo that I'm running is a T-76 which is good for over 900+hp, so I don't think it is too small. If you click on the link in the description above, you'll see the turbo. Peace.

Jesse Culver commented on 26 Aug 2010

blacklabel3745- I got the q45 rear end in my 240 speed calculator says 2 gear shift at 6000rpm is between 65mph and 70mph with 3.54 rear end, with 1.97 2nd gear and 285/40/17. if you freeze at 0:27 he is in second gear at about 6100rpm and 70mph so this is believable.

power2theq commented on 23 May 2008

It's hard to nail down the prices of stuff since it varies. You can pick up a turbo like mine for a less than a grand if you shop around. The rest of the stuff came from Ebay. I haven't kept tabs on the total cost but since I built everything myself, it wasn't much.

power2theq commented on 08 Jan 2009

You've got a decent amount of work done on your Q. If I were you, I wouldn't spend any more money on other mods. Just save up the cash for a turbo system. It was the best mod that I ever did to the Q45. Dollar for dollar, best performance for the money. Peace.

tvrhl69 commented on 25 May 2009

I just picked up a Q45 a month ago. Great condition, and was only $2500. Guess I got really lucky. Anyways, I have around $300 left after a new radiator and A/C Charge. I was curious as to if you had any suggestions on a muffler I should buy for it. Thanks :)

power2theq commented on 16 May 2008

Yeah...superchargers can be problematic. I say you should go with a turbo setup. It isn't is hard to do as most people think. I built it myself by taking my time and thinking things out before I did the work. Let me know if you need any help. Peace.

power2theq commented on 20 Oct 2008

Actually, my turbo is in the engine bay. Check out the other vid to see it. My friend, QSIGUY, has his turbo at the rear on his Q45. Either way will work. Your Benz should have similar performance especially since your car is lighter.

haveaniceday commented on 07 Jan 2009

Good job man, the car pulls hard. I got 91 Q45 which pulls hard too. I did a jdm engine swab on it with NGK Iridium spark plug, cold air intake and custom exsuast. If I had time and money I would put the turbo that would be awesome.

power2theq commented on 29 Jun 2009

First, get all the maintenance done on the car. Second, don't run any gas with ethanol. Use pure gas if available. Finally, make sure that your tire pressures are at 35 psi and that your trunk is free of unnecessary weight.

TURBO Q45 CRUISING

Vid of the Turbo Q45 in traffic. Nothing crazy......just me enjoying the drive as I head back from the store. The weather was in the 90s in suburban Atlanta so the ...