get more power from the vq35

[fastpathy35]

i have a cold air intake, dual in dual out flowmaster super 40 series exhaust, electric fan conversion, and gave the pathfinder a diet. is there anything else that can be done other than the jet chips flash? it runs really good, i do 0-60 in 6.3 and now average 21mpg out of a 4wd. id like to sqeeze a little more out of it. im pretty sure this question has been asked a ton, and im new to this forum so if you dont mind any help would be great. ive thought about turbo but i cant find anyone who has accomplished it and im not too fond of being the first on something that pricy.

oh and i have a ram air set up...
Modified by fastpathy35 at 7:18 PM 10/11/2009

[KyooX4]

Holy crap! I'd just be happy to have that!

[fastpathy35]

lol yeah it puts a big dumb grin on my face when i race people that arent expecting anything at all but those times i lose.....i hate it lol. i just raced a mustang gt with cold air intake long tube headers some sort of muffler and ring and pinion set up...i didnt quite have enough...i want more!!!! lol

[Pwnin O'Brien]

Here's are some things you could try to increase horsepower (all of which are currently being manufactured for the VQ35/R50):

- Throttle body spacer (To get better fuel atomization)

- Throttle body bypass (To make the throttle body cooler and keep the intake air cooler)

- Intake manifold spacer (To keep the intake manifold cooler, thereby making the intake air cooler)

- Manual Hubs (I'm not sure if this could provide any measurable increase in horsepower but it will definitely net you a higher MPG)

[fastpathy35]

all of the throttle body spacers ive seen are for the 3.3. i have yet to find any for the 3.5. and the intake spacer ive only seen for the 350z and others with that intake. do the manual hubs not set any lights off? i kind of like not having to get out and lock them but every little bit helps. that would take a little drag off the driveline.

[sicwitit]

if your trying to make it faster, you should look into up grading your suspension with some lowering springs, and a set of KYB GR2 struts and shocks, changing out your plugs to NGK Iridiums, Apex-I SAFC (get a dyno tune!!) stickier rubber, lighter wheels, better brakes, upgrading all your fluids, and go even farther with your "diet" light weight seats go a long way, I think the stock seats weight is close to 45lbs if I'm not mistaken. I have some Recaros that I'll be bolting in soon, they weigh 18 lbs each w/sliders.

Oh, and If I ever get my pulley set on the market, that should get you another 7-10HP alone.

[miamiheat3332]

6.3 to 60 with only that stuff?!?! damn add a Safc-ii, and it should be like 6.1, damn, with only that, is this proven number 6.3 secs?, like how do you know, or is it an assumption. and is it an auto? if so, then all this s*** is already on my list, but i didnt know it would make it that good.

all we need is a 6spd manual and mabye a turbo or twin turbo from the g35s or 350zs and we can beat porsche cayane turbo s's LOL

[fastpathy35]

i know it sounds crazy but its proven. i will post a video on youtube this weekend so that you may time it yourself. i have beaten a stock automatic 350z, an anniversary ed. mustang gt automatic, a 5 speed v6 camaro, a kawasaki ninja 250r from a 20mph roll...i know that doesnt seem like much but it ran pretty quick to be so little, a newer dodge cummins that was chipped, and a ton of ricers...do you think one of those piggy back kits would work with the pathys and not set off every light and code in the book? i mean every little bit helps. i have a video on you tube i took over a year ago when i only had a cold air intake you can watch it to see just the difference it made...i think it was 0-60 close to 7 seconds.much better than the 8.8 we start out with lol. and there is another vid of a guy on there running a 6.6 i think, his is 5 speed and i dont know what mods.

[fastpathy35]

if your trying to make it faster, you should look into up grading your suspension with some lowering springs, and a set of KYB GR2 struts and shocks, changing out your plugs to NGK Iridiums, Apex-I SAFC (get a dyno tune!!) stickier rubber, lighter wheels, better brakes, upgrading all your fluids, and go even farther with your "diet" light weight seats go a long way, I think the stock seats weight is close to 45lbs if I'm not mistaken. I have some Recaros that I'll be bolting in soon, they weigh 18 lbs each w/sliders.

Oh, and If I ever get my pulley set on the market, that should get you another 7-10HP alone.

everything you listed as far as suspension would help it handle a lot better but i do occasionally use the 4wd so i dont really want to lower it. and if you ever get the pully kit on the market that would be awsome. im already running the iridium plugs and there are no dyno tuning places around...that thought did cross my mind. i would have to go to atlanta and spend around $500 or so but it may come to that one day ;]

[fastpathy35]

i just timed that video i have on youtube already and it was roughly 6.8

[miamiheat3332]

well do you have links lol?

[fastpathy35]

http://www.youtube.com/watch?v=Kk9T2gAYFpQ thats just with the cold air intake. and i timed it at about 6.8...i never timed mine stock but i doubt it was ever 8.8 because losing over 2 seconds on 0-60 without forced air is unlikely.

[miamiheat3332]

i found that one myself lol, im saying if you have any vids 0-60 with all the sht you have now, exhaust, air intake, etc etc. ?

[sicwitit]

Oh I wish I was still in the states, and had all my shop equipment sometimes.

I'm curious, what all have you done for weight reduction?

Have you ever considered buying a G-tech? if you didn't want to flip the bill for the whole thing, do what a group of my friends did, everyone pitch in some dough, and buy it, and just pass it around like it was Ja-rules jewlery when someone wants to use it.

Also, if some of you didnt know, there is a 6spd transmission out for the R50 they sell them here in Japan with the desiel I believe, if I can find any I will try and ship one back in my container in a few months....if I ever get it filled.

As far as the Pulley kit goes, I'm working on it, and a few other items for our R50's that I think most people would like, and probably even buy. and the best part about them, is it will be functional parts, not just some random APC type BS. Well, I'm probably going to have to make some Aluminum Batt tie downs, just as part of my buy in with the pulley kits, in order to get a better rate for the pulleys.

back to your quest - if you ever find your looking to seriously turbo or Twin turbo, let me know. I can find some really good deals on things here. If you do think about a S-AFC, you might be better off going with a reflashed ECU, at least that way, you don't have to worry about dyno time, and its a plug and play affair. plus, they can unlock some variables that you can't with a SAFC. the only other way is a stand alone, but I doubt that is anywhere near what you'd want to get into without going turbo.

anyways, let us know what else you have in mind, I'm interested since I can't do it to mine at the moment.

[fastpathy35]

i should have one this weekend. i tried today with my phone and the video quality wasnt good at all. ill have to get the digital camera. ill have one for you. i dont want you to think im a liar. saturday will prob be the day bc i ordered an hid kit and the blue leds for the dash and they should come in by friday and saturday ill be off work and can focus my time to the pathy.

[fastpathy35]

Oh I wish I was still in the states, and had all my shop equipment sometimes.

I'm curious, what all have you done for weight reduction?

Have you ever considered buying a G-tech? if you didn't want to flip the bill for the whole thing, do what a group of my friends did, everyone pitch in some dough, and buy it, and just pass it around like it was Ja-rules jewlery when someone wants to use it.

Also, if some of you didnt know, there is a 6spd transmission out for the R50 they sell them here in Japan with the desiel I believe, if I can find any I will try and ship one back in my container in a few months....if I ever get it filled.

As far as the Pulley kit goes, I'm working on it, and a few other items for our R50's that I think most people would like, and probably even buy. and the best part about them, is it will be functional parts, not just some random APC type BS. Well, I'm probably going to have to make some Aluminum Batt tie downs, just as part of my buy in with the pulley kits, in order to get a better rate for the pulleys.

back to your quest - if you ever find your looking to seriously turbo or Twin turbo, let me know. I can find some really good deals on things here. If you do think about a S-AFC, you might be better off going with a reflashed ECU, at least that way, you don't have to worry about dyno time, and its a plug and play affair. plus, they can unlock some variables that you can't with a SAFC. the only other way is a stand alone, but I doubt that is anywhere near what you'd want to get into without going turbo.

anyways, let us know what else you have in mind, I'm interested since I can't do it to mine at the moment.

well whatever you find or have made, let me know. the pully kit would be great except for the alternator with the system on. the only other thing ive looked in to is the jet chips reflash.

[sicwitit]

well whatever you find or have made, let me know. the pully kit would be great except for the alternator with the system on.

well, I have 2 ways to combat this, and if they don't work you can always add a 1 Fr capicator to your system, or get a higher output Alt from I think the quest or some other nissan, I can't remember which one but I know someone found a high output unit from another nissan that is compatable with our 3.5lt

anyways, I plan on keeping the pullies the same size as the stock ones, I'm just using forged Al, if that doesn't do, then I can always decrease the Alt pulleys radius by 2-3% to give it a small voltage boost.

These won't be ready until I can get my hands on a set of factory pulleys, which will happen when I come back to the states, or if I can get someone to pull some from a junk yard for me and send them over.

[Pwnin O'Brien]

You could also switch to an in-line electric water pump (and remove the impeller from the stock one), Jegs claims this will net you up to 15HP. They also have kits to convert a belt-driven water pump to an electric motor driven, but this requires mounting the motor bracket onto the water pump, you would also need to find a different sized serpentine belt.

[sicwitit]

that would be a ton of work just for a possible 10-15hp. What about head porting and polishing?, valve angles, cams. I think Cams would probably new more over a electric water pump.

Has anyone ever tried using 350z cams?

Follow this principal. Air/Fuel/Spark. do what you can to increase each of these (spark might be hard since we have independent coils) areas and you will make all the power you want, but each of the 3 have to be ballanced.

Here, if your really looking for some power, this kit will take your 3.5lt to 4.3 and raise your compression to 11.5.1, this kit should net you over 300HP if you want to stay N/A you could opt for the low comp pistons and throw on some of my turbos and there's no reason why 450+ hp can't be achieved.

http://www.aebsracing.com/prod...roker


Modified by sicwitit at 8:49 AM 10/14/2009

[KyooX4]

well, I have 2 ways to combat this, and if they don't work you can always add a 1 Fr capicator to your system, or get a higher output Alt from I think the quest or some other nissan, I can't remember which one but I know someone found a high output unit from another nissan that is compatable with our 3.5lt

Fukinitupagain was the guy with the Nissan Quest alternator.

[pathfinder9035]

If you had a manual pathfinder 3.5, you wouldnt have to worry abotu slow...

I can still pull 7 second 0-60..stock.

[fastpathy35]

yeah i sort of wanted a 5spd, but it took me 6 months to find the pathfinder i have and i didnt want to pass it up.